AIR CONDITIONER

Description

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims benefit of priority to Korean Patent Application No. 10-2024-0195286 filed on Dec. 24, 2024, the disclosure of which is incorporated herein by reference in its entirety.

BACKGROUND

1. Field

The present disclosure relates to an air conditioner.

2. Description of Related Art

A condenser may refer to a heat exchanger that may cool and liquefy a high-temperature, high-pressure refrigerant vapor supplied from a compressor, and may perform a function of releasing heat in a refrigeration cycle outwardly.

In particular, an evaporative condenser may operate by combining the actions of water cooling and air cooling, spraying water onto a tube through which a cooling fluid passes, flowing air supplied from a blower to a surface of the tube, and discharging water vapor evaporated from the surface of the tube to cool the cooling fluid.

Meanwhile, an evaporative cooler may operate by alternately forming a wet channel and a dry channel, and supplying cooled air indoors through the dry channel by heat exchange caused by evaporation in the wet channel. In detail, the evaporative cooler may operate by cooling a second air passing through the dry channel by using latent heat from evaporation of water injected into a first air passing through the wet channel.

Here, a water injection module for injecting water into an evaporative heat exchanger such as an evaporative condenser or an evaporative cooler may perform an operation of continuously spraying water during an operation of an air conditioner. Accordingly, under a partial load condition in which a cooling load is relatively small or a high-humidity condition in which an evaporative effect is reduced, the water injection module may excessively consume a water injection amount relative to a required water injection amount, which leads to a need for optimizing the water injection amount.

In particular, evaporation may relatively less occur in a high-temperature and high-humidity region, and a load of the condenser may thus increase. Accordingly, a pressure in the condenser may increase to a high pressure, thus causing increased power consumption in the compressor and degraded performance of the condenser.

RELATED ART DOCUMENT

Patent Document

• (Patent Document 1) Korean Laid-Open Patent Publication No. 10-2024-0022838

SUMMARY

An aspect of the present disclosure is to provide an air conditioner capable of controlling opening and closing operations of a water injection valve according to detected humidity and determining a rotational speed of a compressor.

Tasks of the present disclosure are not limited to the above-described contents. Those skilled in the art to which the present disclosure pertains may understand additional tasks of the present disclosure from overall contents of the specification without difficulty.

According to an aspect of the present disclosure, provided is an air conditioner including: an evaporator, an expansion valve, a compressor, and an evaporative condenser through which a refrigerant circulates; a water injection module for spraying water into the evaporative condenser; and a controller for controlling an operation of the water injection module, wherein the water injection module includes a water injection valve connected to a water supply source and opening and closing a flow path through which water is supplied from the water supply source, and a supply line supplying water to the evaporative condenser, and the controller is connected to the water injection valve to control the opening and closing operations of the water injection valve according to detected humidity and determines a rotational speed of the compressor.

When detected humidity may be less than a predetermined first reference value, the controller may control the water injection valve in a first opening mode in which the water injection valve is maintained in an open state for a predetermined water-injection time, and determine a rotational speed of the compressor to be a predetermined first rotational speed.

When detected humidity exceeds the first reference value and is lower than a second reference value, set to be higher than the first reference value, the controller may repeatedly perform the opening and closing operations of the water injection valve in a first opening/closing mode in which the water injection valve is maintained in an open state for a predetermined first water-injection time and then maintained in a closed state for a predetermined first water-injection stop time, and determine a rotational speed of the compressor to be a second rotational speed set to be higher than the first rotational speed.

When detected humidity exceeds the second reference value and is less than a third reference value set to be higher than the second reference value, the controller may repeatedly perform the opening and closing operations of the water injection valve in a second opening/closing mode in which the water injection valve is maintained in an open state for a predetermined second water-injection time and then maintained in a closed state for a predetermined second water-injection stop time, and determine a rotational speed of the compressor to be a high-humidity initial-operation rotational speed set to be higher than a predetermined initial-operation rotational speed of the compressor.

The controller may set a target value of a low-pressure evaporation pressure saturation temperature (SST) to be less than a predetermined reference value, thereby increasing a rotational speed of the compressor to the second rotational speed.

The controller may set a target value of a low-pressure evaporation pressure saturation temperature (SST) to be less than a predetermined reference value, thereby increasing a rotational speed of the compressor to a predetermined third rotational speed set to be higher than the first rotational speed, and increasing a speed of an outdoor unit fan.

When detected humidity exceeds the third reference value, the controller may close the water injection valve and determine a rotational speed of the compressor to be a fourth rotational speed set to be higher than the first rotational speed.

According to another aspect of the present disclosure, provided is a method of controlling a water injection module of an air conditioner, in which the method is performed on a computing device including a processor and a storage medium recording at least one program executable by the processor, the method including: a detecting operation of detecting humidity; a determining operation of determining whether detected humidity falls within a predetermined reference range; a deciding operation of deciding the water-injection mode in which water is injected through a supply line of the water injection module based on a determination result, and an operating operation of determining and operating a rotational speed of a compressor based on the determined water-injection mode.

In the determining operation, when detected humidity is less than a predetermined first reference value, in the deciding operation, the water injection valve may be controlled in a first opening mode in which the water injection valve is maintained in an open state for a predetermined water-injection time, and in the operating operation, a rotational speed of the compressor may be determined to be a predetermined first rotational speed.

In the determining operation, when detected humidity exceeds the first reference value and is lower than a second reference value, set to be higher than the first reference, in the deciding operation, the opening and closing operations of the water injection valve may be repeatedly performed in a first opening/closing mode in which the water injection valve is maintained in an open state for a predetermined first water-injection time and then maintained in a closed state for a predetermined first water-injection stop time, and in the operating operation, a rotational speed of the compressor may be determined to be a second rotational speed set to be higher than the first rotational speed.

In the determining operation, when detected humidity exceeds the second reference value and is less than a third reference value set to be higher than the second reference value, in the deciding operation, the opening and closing operations of the water injection valve may be repeatedly performed in a second opening/closing mode in which the water injection valve is maintained in an open state for a predetermined second water-injection time and then maintained in a closed state for a predetermined second water-injection stop time, and in the operating operation, a rotational speed of the compressor may be determined to be a high-humidity initial-operation rotational speed set to be higher than a predetermined initial-operation rotational speed of the compressor.

In the operating operation, a target value of a low-pressure evaporation pressure saturation temperature (SST) may be set to be less than a predetermined reference value, thereby increasing a rotational speed of the compressor to the second rotational speed.

In the operating operation, a target value of a low-pressure evaporation pressure saturation temperature (SST) may be set to be less than a predetermined reference value, thereby increasing a rotational speed of the compressor to a predetermined third rotational speed set to be higher than the first rotational speed, and increasing a speed of an outdoor unit fan.

In the determining operation, when detected humidity exceeds the third reference value, in the deciding operation, the water injection valve may be closed, and in the operating operation, a rotational speed of the compressor may be determined to be a fourth rotational speed set to be higher than the first rotational speed.

BRIEF DESCRIPTION OF DRAWINGS

The above and other aspects, features, and advantages of the present disclosure will be more clearly understood from the following detailed description, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an exemplary view of an air conditioner according to an exemplary embodiment of the present disclosure;

FIG. 2 is an exemplary view illustrating a water injection module of the air conditioner according to an exemplary embodiment of the present disclosure;

FIG. 3 is a flowchart illustrating a method of controlling a water injection module of an air conditioner according to an exemplary embodiment of the present disclosure;

FIGS. 4 and 5 are graphs illustrating a low-pressure evaporation pressure saturation temperature and a compressor speed according to detected humidity of the water injection module of the air conditioner according to an exemplary embodiment of the present disclosure; and

FIG. 6 is a block diagram of a computing device according exemplary embodiment of the present disclosure, in which the air conditioner and the method of controlling a water-injection module of the air conditioner are entirely or partially implemented.

DETAILED DESCRIPTION

Hereinafter, embodiments of the present disclosure are described with reference to the accompanying drawings. However, the embodiments of the present disclosure may be modified into various other forms, and a scope of the present disclosure is not limited to the embodiments described below.

In addition, the embodiments of the present disclosure are provided to more completely describe the present disclosure to those skilled in the art.

Shapes, sizes, and the like of elements in the drawings may be exaggerated for a clearer description.

In describing the embodiments of the present disclosure, a detailed description may be omitted when the detailed description of known art related to the present disclosure is determined to unnecessarily obscure a gist of the present disclosure. In addition, terms described below correspond to terms defined in consideration of functions in the present disclosure and may vary depending on intentions, practices, or the like of a user or an operator. Therefore, the terms should be defined based on entire contents of the specification. Terms used in the detailed description are provided merely to describe the embodiments of the present disclosure and are not intended to limit the present disclosure. A term of a singular number includes its plural number unless clearly used otherwise.

In this description, expressions such as “include” and “comprise” indicate specific features, numbers, operations, operations, elements, portions thereof, or combinations thereof, and should not be interpreted to preclude the presence or possibility of one or more other features, numbers, operations, operations, elements, portions thereof, or combinations thereof other than those described.

Unless otherwise specified in the specification of the present disclosure, a percentage unit (%) may indicate weight percent (w %).

In the specification, terms such as “upper,” “upper portion,” “upper surface,” “lower,” “lower portion,” “lower surface” and “side surface” are indicated based on the drawings and may vary depending on directions in which devices or components are disposed.

In addition, throughout the specification, when one component is described as being “connected” to another component, it indicates not only a case where these components are “directly connected” to each other, but also a case where these components are “indirectly connected” to each other while having another component interposed therebetween.

Hereinafter, the present disclosure is described in detail through each implementation example or exemplary embodiment of the present disclosure. It should be noted that each implementation example or exemplary embodiment described in the specification is not limited to describing only one embodiment or exemplary embodiment and may also be combined with another exemplary embodiment or exemplary embodiment. Therefore, citation of claims in the patent claims corresponds merely to one of the implementation example. The spirit of the present disclosure should not be interpreted as being defined only by a combination with the cited claims, and may also include combinations with various claims.

FIG. 1 is an exemplary view of an air conditioner according to an exemplary embodiment of the present disclosure; and FIG. 2 is an exemplary view illustrating a water injection module of the air conditioner according to an exemplary embodiment of the present disclosure.

Referring to FIGS. 1 and 2, an air conditioner 100 according to an exemplary embodiment of the present disclosure may include evaporative condenser 110 for condensing a compressed refrigerant, an expansion valve 120 for expanding a refrigerant passing through the evaporative condenser 110, an evaporator 130 for evaporating the refrigerant passing through the expansion valve 120, and a compressor 140 for compressing the refrigerant passing through the evaporator 130. The refrigerant may form a refrigerant cycle R1 by passing through the evaporative condenser 110, the expansion valve 120, the evaporator 130, and the compressor 140. In the refrigerant cycle R1, the compressor 140, the evaporative condenser 110, and the expansion valve 120 may be disposed in an outdoor unit, and the evaporator 130 may be disposed in an indoor unit 150.

Here, the evaporative condenser 110 may include a condensing module 111 including a flow path, a water injection module 200 disposed above the condensing module 111 and spraying water passing through the condensing module 111, and a blowing module 113 disposed at one side of the condensing module 111 and providing air passing through the condensing module 111. The evaporative condenser 110 may be installed in an outdoor unit (not shown) disposed outdoors spatially separated from indoors. The condensing module 111 may have an air flow path A1 through which air is drawn from outside by the blowing module 113, passes through the condensing module 111, and is discharged after its temperature increases, a water supply path W1 which is connected to a water supply source WS and through which water sprayed to the condensing module 111 by the water injection module 200 is drained from a lower portion of the condensing module 111, and the refrigerant cycle R1 passing therethrough. The refrigerant may be condensed by air in the air flow path A1 and water in the water supply path W1. Meanwhile, the evaporator 130 through which the refrigerant cycle R1 passes may be disposed in the indoor unit 150, and the indoor unit 150 may include a blower 151. Indoor air may pass through the evaporator 130 by the blower 151 and may then form an indoor circulation path A10 that supplies air back indoors.

Here, the condensing module 111 may enable the refrigerant to exchange heat with water and air by passing through a three-directional spatial structure formed in a header extension direction, a connection tube extension direction, and a header row stacking direction to thus achieve greater heat exchange even when occupying the same volume, thereby improving cooling efficiency. Meanwhile, the condensing module 111 may adopt a condenser structure using evaporation of water even if the condensing module 111 does not include the above-described structure.

Meanwhile, the air conditioner 100 according to an exemplary embodiment of the present disclosure may include an evaporative cooler if necessary. The evaporative cooler may be disposed in the outdoor unit, may be disposed on an inlet flow path through which outdoor air is introduced, may include a dry channel and a wet channel, and may cool air passing through the dry channel. The evaporative cooler may include the dry channel through which air to be cooled passes and the wet channel adjacent to the dry channel, and the wet channel may exchange heat with the dry channel by evaporation of water sprayed by a water injection module for the cooler. Typically, the evaporative cooler may have the dry channel and the wet channel alternately disposed, and the water injection module for the cooler may be disposed above the wet channel and provide water to the wet channel, and a blowing module (not shown) for the cooler may be disposed above or below the wet channel to cause the flow. Here, the water injection module for the cooler for providing water to the wet channel of the evaporative cooler may include the same configuration as the water injection module 200 for providing water to the evaporative condenser 110. Hereinafter, the water injection module 200 for providing water to the evaporative condenser 110 is described merely as an example, and may also be applicable to the water injection module for the cooler included in the evaporative cooler.

Referring to FIGS. 1 and 2, the water injection module 200 for spraying water into the evaporative condenser 110 of the air conditioner 100 according to an exemplary embodiment of the present disclosure may include a supply line 210 connected to the water supply source WS and supplying water to the evaporative condenser 110. The supply line 210 may have a water injection valve 220 disposed in the supply line 210 and opening and closing a flow path through which water is supplied from the water supply source WS, and also have a pressure-reducing valve 230 disposed in the supply line 210. For example, the water injection valve 220 may correspond to a normally open valve. Here, the normally open valve may particularly refer to a valve capable of being actively closed, and may be automatically opened or maintained in an open state while no current is supplied to the valve. However, the water injection valve may not be limited thereto, and may be implemented as any valve as long as the water injection valve may be opened and closed by a controller C described below. The water injection valve may correspond to a flow-adjusting valve, and may also correspond to a valve that operates only in a fully open state and a fully closed state.

In addition, various components may be disposed in the supply line 210 if necessary. For example, a filter for filtering water flowing inside the supply line 210 may be disposed in the supply line 210. The filter may have various forms. For example, the filter may be implemented as a resin filter in which a large number of resin beads each having a bead shape are provided and flow according to a flow velocity. The filter may perform a function of removing trace amounts of dissolved inorganic ions and organic matters included in water flowing inside the supply line. However, the filter is not limited thereto and may correspond to any one of a pretreatment filter, a pre-carbon filter, and a Moringa filter. The Moringa filter may include a first Moringa filter including Moringa seed powders and sand or anthracite and a second Moringa filter including Moringa seed powders and activated carbon.

The water injection module 200 may include a discharge unit 240 connected to one end of the supply line 210, that is, an outlet end thereof. The discharge unit 240 may include a discharge line 241 connected to one end of the supply line 210 and a water injection nozzle 242 disposed in the discharge line 241 and spraying water into the evaporative condenser 110. Here, the water injection nozzle 242 may be implemented as a micro-spray nozzle for generating water supplied through the discharge line 241 into sprayed water and spraying sprayed water to the evaporative condenser 110. The discharge unit 240 may include one or more discharge lines 241 in which the water injection nozzle 242 is disposed, if necessary. When the discharge unit 240 may include a plurality of discharge lines 241, the plurality of discharge lines 241 may branch in parallel from one end of the supply line 210, and water may be entirely sprayed to the evaporative condenser 110 through the water injection nozzles 242 disposed in the plurality of discharge lines 241.

For example, as illustrated in FIG. 2, the discharge unit 240 may include a first discharge line 241a and a second discharge line 241b that branch from one end of the supply line 210, a plurality of first water injection nozzles 242a disposed in the first discharge line 241a, and a plurality of second water injection nozzles 242b disposed in the second discharge line 241b. The first water injection nozzle 242a may spray water to one portion of a heat exchange part (the above-described condensing module 111, see FIG. 1) of the evaporative condenser 110. The second water injection nozzle 242b may spray water to another portion of the heat exchange part (the above-described condensing module 111, see FIG. 1) of the evaporative condenser 110. However, the present disclosure is not limited thereto, and the discharge line may be disposed as one line or three or more lines connected in parallel depending on a form or size of the evaporative condenser, or necessity.

The air conditioner 100 according to an exemplary embodiment of the present disclosure may include the controller C for controlling an operation of the water injection module 200. The controller C may be connected to the water injection valve 220 disposed in the supply line 210, may control opening and closing operations of the water injection valve according to detected humidity, and may determine a rotational speed of the compressor.

FIG. 3 is a flowchart illustrating a method of controlling a water injection module of an air conditioner according to an exemplary embodiment of the present disclosure.

Referring to FIGS. 1 to 3, a humidity sensor (not shown) may detect humidity (S1). Humidity may correspond to outdoor humidity and/or indoor humidity. The humidity sensor may be disposed in the outdoor unit and/or the indoor unit. Humidity detection may be performed by supplying the air conditioner with a humidity value measured by a humidity sensor installed in another device interlocked with the air conditioner, or by receiving an outdoor humidity value through the Internet.

The controller C may determine whether detected humidity falls within a predetermined reference range (S2).

For example, the reference range may be classified into a range less than a predetermined first reference value (S2a), a range exceeding the first reference value and lower than a second reference value, set to be higher than the first reference value (S2b), a range exceeding the second reference value and less than a third reference value set to be higher than the second reference value (S2c), and a range exceeding the third reference value (S2d).

Here, the range exceeding the first reference value and less than the second reference value and the range exceeding the second reference value and less than the third reference value may be subdivided to set water-injection operations and rotational speeds of the compressor differently based on humidity, or may be integrated into one range, and may not be limited thereto.

For example, the first reference value may refer to humidity of 40%, the second reference value may refer to humidity of 70%, and the third reference value may refer to humidity of 90%, and these values may vary depending on a region, location, altitude, or the like in which the air conditioner 100 according to an exemplary embodiment of the present disclosure is applied.

Next, the controller C may control the water injection valve 220 in a water-injection mode corresponding to the above-described humidity range (S3).

For example, if detected humidity is less than the first reference value, the controller C may control the water injection valve 220 in a first opening mode in which the water injection valve 220 is maintained in an open state for a predetermined water-injection time (S3a).

If detected humidity falls within the range exceeding the first reference value and less than the second reference value, the controller C may repeatedly control the opening and closing operations of the water injection valve 220 in a first opening/closing mode in which the water injection valve 220 is maintained in an open state for a predetermined first water-injection time and then maintained in a closed state for a predetermined first water-injection stop time (S3b).

If detected humidity falls within the range exceeding the second reference value and less than the third reference value, the controller C may repeatedly control the opening and closing operations of the water injection valve in a second opening/closing mode in which the water injection valve is maintained in the open state for a predetermined second water-injection time and then maintained in a closed state for a predetermined second water-injection stop time (S3c).

For example, the water-injection stop time of the second opening/closing mode may be equal to or longer than the water-injection stop time of the first opening/closing mode. For example, the water-injection stop time of the first opening/closing mode may be set to 2 minutes, and the water-injection stop time of the second opening/closing mode may be set to 4 minutes. The water-injection times of the first opening/closing mode and the second opening/closing mode may be equal to each other. For example, the water-injection times of the first opening/closing mode and the second opening/closing mode may each be 5 minutes.

If detected humidity exceeds the third reference value, water injection may be meaningless at current humidity. Therefore, the controller C may close the water injection valve 220 and may perform a non-water-injection operation (S3d).

Next, the controller C may determine the rotational speed of the compressor corresponding to the water-injection mode (S4).

For example, when detected humidity is less than the first reference value (S2a), the controller C may control the water injection valve 220 in the first opening mode (S3a), and determine a rotational speed of the compressor 140 to be a predetermined first rotational speed (S4a). The first rotational speed may be a rotational speed corresponding to a basic operation of the compressor 140.

When detected humidity falls within the range exceeding the first reference value and less than the second reference value (S2b), the controller C may control the water injection valve 220 in the first opening/closing mode (S3b), and may determine a rotational speed of the compressor to be a second rotational speed set to be higher than the first rotational speed (S4b).

FIGS. 4 and 5 are graphs illustrating a low-pressure evaporation pressure saturation temperature and a compressor speed according to detected humidity of the water injection module of the air conditioner according to an exemplary embodiment of the present disclosure.

First, FIG. 4 is a graph illustrating a relation between a low-pressure evaporation pressure saturation temperature (SST) and humidity. The low-pressure evaporation pressure saturation temperature (SST) is inversely proportional to humidity. Accordingly, in order to increase dehumidification when humidity increases, the controller C may lower a target value of the low-pressure evaporation pressure saturation temperature (a low-pressure target value of the compressor at the rotational speed of S4b=an existing target value-x) (where, a indicates a constant set according to an inverse relation between the low-pressure evaporation pressure saturation temperature (SST) and humidity) to thus increase the rotational speed of the compressor 140 to the second rotational speed, thereby shortening a time required to reach a set temperature.

Referring back to FIGS. 1 and 3, when detected humidity falls within the range exceeding the second reference value and less than the third reference value (S2c), the controller C may control the water injection valve 220 in the second opening/closing mode (S3c), and may determine an initial rotational speed of the compressor 140 to be a high-humidity initial-operation rotational speed set to be higher than a predetermined initial-operation rotational speed of the compressor 140 (S4c). In more detail, referring to FIG. 5, the controller C may first operate the compressor 140 by setting the initial rotational speed of the compressor 140 to the high-humidity initial-operation rotational speed (S4c-1), and may lower a target value of the low-pressure evaporation pressure saturation temperature (a low-pressure target value of compressor at the rotational speed of S4c-2=the existing target value−β) (where β indicates a constant set according to the inverse relation between the low-pressure evaporation pressure saturation temperature (SST) and humidity) to thus increase the rotational speed of the compressor 140 to a third rotational speed set to be higher than the first rotational speed (S4c-2), and may thus increase a speed of an outdoor-unit fan (S4c-3), thereby shortening the time required to reach a set temperature.

Referring to FIGS. 1 and 3, when detected humidity exceeds the third reference value (S2d), the controller C may control the water injection valve 220 in the non-water-injection mode (S3d), and determine a rotational speed of the compressor 140 to be a fourth rotational speed set to be higher than the first rotational speed (S4d).

The second rotational speed, the third rotational speed, and the fourth rotational speed described above may be set to be equal to one another, or detected humidity differs and the corresponding water-injection mode differs, and the third rotational speed may thus be set to be higher than the second rotational speed, and the fourth rotational speed may be set to be higher than the third rotational speed.

Finally, the controller C may perform a repeating operation (S5) of repeatedly performing a detecting operation (S1) of detecting humidity after a predetermined retention time, a determining operation (S2) of determining whether detected humidity falls within a predetermined reference range, a deciding operation (S3) of deciding a water-injection mode in which water is injected through the supply line of the water injection module based on a determination result, and an operating operation (S4) of determining and operating a rotational speed of the compressor based on the determined water-injection mode. For example, the retention time may be set to 10 minutes, and a setting of the retention time may be performed in various ways.

FIG. 6 is a block diagram of a computing device in which the air conditioner and the method of controlling a water injection module of an air conditioner according to the exemplary embodiments of the present disclosure are entirely or partially implemented.

As illustrated in FIG. 6, a computing device 400 may include at least one processor 401, a computer-readable storage medium 402, and a communication bus 403. For example, the computing device 400 may include a personal computer, a server computer, a handheld or laptop device, a mobile device (e.g., a mobile phone, a personal digital assistant (PDA), or a media player), a multiprocessor system, a consumer electronic device, a mini-computer, a mainframe computer, a distributed computing environment that includes any of the above-described systems or devices, or the like, and is not limited thereto.

The processor 401 may enable the computing device 400 to operate according to the exemplary embodiment described above. For example, the processor 401 may execute at least one program stored in the computer-readable storage medium 402. At least one program may include at least one computer-executable instruction, and when executed by the processor 401, the computer-executable instruction may enable the computing device 400 to perform operations according to the exemplary embodiment. For example, the processor 401 may include a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or the like, and may have a plurality of cores. The memory 1120 may be a volatile memory (e.g., a random access memory (RAM)) or a non-volatile memory (e.g., a read-only memory (ROM) or a flash memory), or a combination thereof.

The computer-readable storage medium 402 may store computer-executable instructions or program codes, program data, and/or other suitable forms of information. A program 402a stored in the computer-readable storage medium 402 may include a set of instructions executable by the processor 401. In an exemplary embodiment, the computer-readable storage medium 402 may correspond to a memory (e.g., a volatile memory such as a random-access memory or a non-volatile memory, or a suitable combination thereof), at least one magnetic disk storage device, an optical disk storage device, a flash memory device, another type of storage medium that may be accessed by the computing device 400 and may store desired information, or a suitable combination thereof.

The communication bus 403 may interconnect various other components of the computing device 400, including the processor 401 and the computer-readable storage medium 402.

The computing device 400 may also include at least one input/output interface 405 that provides an interface for at least one input/output device 404, and at least one network communication interface 406. The input/output interface 405 and the network communication interface 406 may be connected to the communication bus 403. The input/output device 404 may be connected to other components of the computing device 400 through the input/output interface 405. Examples of the input/output devices 404 may include input devices such as a pointing device (a mouse or a trackpad), a keyboard, a touch input device (a touchpad or a touchscreen), a voice or sound input device, various types of sensor devices and/or imaging devices, and/or output devices such as a display device, a printer, a speaker, and/or a network card. An example of the input/output device 404 may be disposed inside the computing device 400 as an internal component of the computing device 400, or may be implemented as a separate device distinguished from the computing device 400 and connected to the computing device 400.

Meanwhile, the exemplary embodiment of the present disclosure may include a program for performing, on a computer, the methods described in the specification, and a computer-readable recording medium including the program. The computer-readable recording medium may include program instructions, local data files, local data structures, or the like, either alone or in combination. The medium may be specially designed and configured for the present disclosure or may be a medium commonly usable in a computer software field. An example of the computer-readable recording medium may include a magnetic medium such as a hard disk, a floppy disk, or a magnetic tape, an optical recording medium such as a compact disk read only memory (CD-ROM) or a digital versatile disk (DVD), or a hardware device specifically configured to store and execute a program instruction such as a read only memory (ROM), a random access memory (RAM), or a flash memory. Examples of the program may include not only machine language code generated by a compiler but also high-level language code executable by a computer using an interpreter.

Components such as the “controller” used in the specification generally refer to computer-related entities such as hardware, a combination of hardware and software, software, or software being executed. For example, components such as the “controller” may refer to a process executing on a processor, the processor itself, an object, an executable, a thread of execution, a program, and/or a computer, and are not limited thereto. For example, both an application executed on the controller and the controller itself may be included in the components. At least one component may be present within a process and/or a thread of execution, and the components may be localized on one computer or distributed across two or more computers.

As described above, according to the present disclosure, the power consumption may be reduced and the performance degradation in the humid region may be minimized by controlling the water-injection mode based on humidity and controlling the rotational speed of the compressor.

According to the exemplary embodiments of the present disclosure, the power consumption may be reduced and the performance degradation in the humid region may be minimized by controlling the water-injection mode based on humidity and controlling the rotational speed of the compressor.

While the exemplary embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and variations could be made without departing from the scope of the present disclosure as defined by the appended claims.