KR101638524B1 - Eco-friendly 100% outdoor air conditioning system for ship and 100% outdoor air conditioning method thereof - Google Patents

Abstract

The present invention adopts an all-outdoor air conditioning system as an air conditioning system of a ship, and is an environmentally friendly environmentally friendly ship front air conditioning system capable of achieving carbon emission reduction by using the heat source and the cold heat source necessary for air- And to provide a method for air conditioning of a ship front. To achieve the above object, according to the present invention, there is provided a piping module comprising: a piping module including an air supply side piping and an exhaust side piping for introducing outside air into an air conditioning space and discharging the air to the outside; An indirect evaporative cooler configured to sensibly cool the outside air flowing through the supply side pipe of the piping module; A direct evaporative cooler configured to cool and humidify the outside air through the indirect evaporative cooler; And a dehumidifying module for dehumidifying the outside air that is installed on the most upstream side of the air supply side piping, wherein the dehumidifying module includes a liquid dehumidifying unit configured to dehumidify the outside air before the outside air is introduced into the indirect evaporation cooling unit, a high temperature heat source supply device for supplying waste heat of the ship as a regenerative heat source for regenerating the desiccant used in the liquid type dehumidifier, and a heat source for recovering the heat of the desiccant regenerated by the high temperature heat source supply device in the liquid type dehumidifier And a low-temperature heat source for supplying seawater for heat exchange by providing a cold heat source so as not to be transmitted to the air supply unit.

Description

TECHNICAL FIELD [0001] The present invention relates to an air conditioning system for an environmentally friendly ship and an air conditioning method for a ship,

The present invention relates to an outdoor air conditioning system for an environmentally friendly ship and an air conditioning method for a ship, and more particularly, to an air conditioning system for a ship, which uses an outdoor air conditioning system, And an environmentally friendly air-conditioning system for an environment-friendly ship and an air-conditioning method for an air-conditioning system for a ship, which can reduce carbon emission by using seawater.

The present invention has been derived from research carried out as part of the "Basic research project / Research project for supporting researchers / Leap research" under the support of the Korea Research Foundation of the Creation Science of the Future [Project Number: NRF-2012R1A2A1A01001927, Development of High Efficiency Front Air Conditioning System Based on Evaporative Cooling Technology].

Unlike the major facilities on the land, ships can not be supplied with power from the power plant. Due to the special environment, main equipment in the ship can not be supplied with power or only the minimum power may be supplied. In such cases, it is necessary to design the Emergency Operation Mode so that the main device in the ship can operate with minimum power.

In addition, the ship is equipped with an air conditioner for air-conditioning the inside of the ship. In the case of a ship, it is very important to keep the room temperature constant. Conventional air conditioners used in conventional ships employ a conventional air conditioner. In the case of an air conditioner using cooling water, cooling water cooled by a cooler is air-conditioned through heat exchange with ambient air in a heat exchanger. In this case, in the heat exchanger, when the cooling water exchanges heat with the ambient air, the ambient air reaches the saturated water vapor pressure, and the condensed water condenses to the low temperature condensate. Such low-temperature condensed water is generally discharged to the outside of the air conditioner, and it is not utilized for the air conditioner.

Therefore, it is necessary to develop the air conditioning system considering the specific environment and configuration of the ship even in the case of the ship.

In accordance with the so-called "Bali roadmap" adopted at the 13th Conference of the Parties to the United Nations Framework Convention on Climate Change in December 2007, Korea, the ninth largest greenhouse gas emitter, has set a national greenhouse gas reduction target in 2009, We are committed to developing and commercializing energy-saving and carbon-emission-reduction technologies in almost all industrial sectors, while being in a situation where we must enter. In particular, in the field of buildings, which accounts for more than 30% of the total energy consumption in Korea, we are striving to develop high-efficiency, high-performance systems that drastically reduce GHG emissions in the building sector by significantly reducing energy consumption in ventilation and heating / to be.

As a part of this, recently developed countries in North America and Europe have actively carried out researches on pollution free cooling system that uses only latent heat of water evaporation to supply cooling air, so Korea has recently been using evaporative cooling to save environment and save energy. At the same time, there is a growing interest in environmentally friendly cooling systems pursued.

Water evaporation The latent heat cooling system has been regarded as a system that can only be used in Europe, where temperatures are high in summer, but relatively low in humidity, or in dry climates. However, if indirect evaporative cooling (indirect evaporative cooling), which does not directly contact the air to be supplied for evaporative cooling, is used, it is possible to obtain an economical cooling effect even in a hot and humid climate region such as summer in Korea (2002), the cooling system using evaporative cooling has attracted attention as a new cooling system (Maheshwari et al. In addition, when combined with additional dehumidification rotors (Zhang et al., 2005; Jang Young-su et al., 2004), it is possible to achieve better cooling effect, reduce carbon emissions by reducing energy consumption, Due to the excellent environment - friendly characteristics of using no - water, research and development on cooling system using latent heat of evaporation will gain more strength in the future.

However, as described above, the evaporative cooling system developed through the above-mentioned studies is mostly determined when the supply air temperature is in the range of 23 to 26 ° C in the summer. If the supply amount is not very large, it is difficult to expect a sufficient cooling effect in a general building There is a problem. Due to these limitations, it has only been developed to be a small-sized air conditioner that can be used only when the amount of air generated to maintain the indoor air quality is at a neutral temperature close to room temperature, . In order to overcome the above disadvantages, a dehumidifying and evaporative cooling system for increasing the evaporative cooling effect by combining a dehumidification rotor is being developed. However, there is a problem in that a wider empirical study is required for realizing and practicing system performance .

On the other hand, in order to improve the indoor air quality, the research on the 100% outdoor air system that controls the indoor environment with only 100% outside air is being actively carried out mainly by the advanced countries. In the existing air conditioning system, Air related problems such as sick building syndrome and cross contamination have become very serious as a result of recycling more than 70% of the indoor air to the room. In other words, the expectation of the front air conditioning system is getting bigger in that it is a technology to exhaust the outside air to the outside and to ensure the pleasant and healthy indoor air quality by performing air conditioning only by fresh outside air. However, the air conditioning method using the proposed evaporative cooling system is far from the global trend for the development of the outdoor air conditioning system, and is still based on the recirculation of the indoor air as in the existing air conditioning system, There is a fundamental problem that it is difficult to do.

The inventors of the present invention have found that, as a solution to such conventional problems, the patent application No. 10-2010-0028820 (filed on March 30, 2010) (Patent Application Publication No. 10-2011-0109209 (October 10, 2011)) and (Patent Application No. 10-2010-0028814 filed on Mar. 3, 2010) (Patent Application Publication No. 10-2011-0109204 (Oct. 10, 2011)).

However, there is a problem in that the efficiency of the indirect evaporative cooler and the direct evaporative cooler is significantly lowered when the outdoor air is used in a high temperature and high humidity environment (especially in summer).

(Document 1) Korean Patent Registration No. 10-1323822 (Oct. 24, 2013) (Document 2) Korean Patent Registration No. 10-1138346 (Apr. 13, 2012) (Document 3) Korean Published Patent Application No. 10-2011-0109209 (June 10, 2011) (Document 4) Korean Published Patent Application No. 10-2011-0109204 (June 10, 2011)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide an air conditioning system for an air conditioning system, An object of the present invention is to provide an environmentally friendly front air conditioning system and a front air conditioning system for a ship which can reduce carbon emission.

More specifically, the present invention relates to a system and a method for recovering waste heat generated by a marine engine as a heat source necessary for regeneration of a dehumidifying system constituting an outside air-conditioning system, And an object of the present invention is to provide an environmentally friendly front air conditioning system for ships and a front air conditioning method for ships which can utilize seawater maintaining a constant temperature throughout the year as a heat source for cooling.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

According to one aspect of the present invention, there is provided a marine air conditioning system for air-conditioning an inside of a ship, comprising: an air supply pipe for guiding outside air into the air conditioning space, A piping module including a side piping; An indirect evaporative cooler configured to sensibly cool the outside air flowing through the supply side pipe of the piping module; A direct evaporative cooler configured to cool and humidify the outside air through the indirect evaporative cooler; And a dehumidifying module for dehumidifying the outside air that is installed on the most upstream side of the air supply side piping, wherein the dehumidifying module includes a liquid dehumidifying unit configured to dehumidify the outside air before the outside air is introduced into the indirect evaporation cooling unit, a high temperature heat source supply device for supplying a regenerative heat source for regenerating a desiccant used in the liquid type dehumidifier; and a high-temperature heat source supply device for transferring heat of the desiccant regenerated by the high- And a low-temperature heat source supply device for heat-exchanging the heat source by providing a cold source to prevent the heat source from interfering with the heat source.

In one aspect of the present invention, the high-temperature heat source supply device includes a ship engine waste heat circulation line for circulating waste heat generated in an engine of a ship to the liquid type dehumidifier; And a heat storage unit provided on the ship engine waste heat circulation line to store the generated waste heat.

In one aspect of the present invention, it is preferable that the high-temperature heat source supply device further includes an auxiliary regenerative heat source supply device for supplying an auxiliary regenerative heat source to the heat storage unit.

In one aspect of the present invention, the example-dehumidification module includes a bypass line for bypassing the liquid type dehumidifier and introducing the outside air into the indirect type evaporation type cooler; And a waste heat transfer line for directly circulating the waste heat provided by the high-temperature heat source supply device to the supply-side pipe on the upstream side of the air-conditioning space to be air-conditioned.

In one aspect of the present invention, the low-temperature heat source supply device includes a seawater circulation line for circulating seawater to the liquid type dehumidifier; And a cooling water storage unit provided on the seawater circulation line to store the circulated seawater.

According to one aspect of the present invention, the low-temperature heat source supply apparatus further includes an auxiliary cooling heat source supply device for supplementarily supplying a cooling heat source to the cooling water storage unit, wherein the auxiliary cooling heat source supply device includes a cooling tower, side free cooling, which is controlled through a proportional controller.

According to an aspect of the present invention, there is further provided a gas turbine module, further comprising a sensible heat exchanger for exchanging sensible heat of the outside air exhausted from the exhaust piping of the piping module, wherein the rough outside air is branched And one of the branched supply pipes is supplied with the outside air through the direct evaporative cooler and the other is supplied through the sensible heat exchanger to be reheated and supplied to the air conditioning space desirable.

In one aspect of the present invention, a heating coil installed on the upstream side of the sensible heat exchanger for further heating the outside air to be exhausted, and a supply air supplied through the branched air supply pipe, And the terminal box is configured such that the low-temperature side or the neutral-side side air is selectively supplied according to the load condition of the air conditioning space or the occupant's choice, or is mixed with the required temperature and supplied.

According to another aspect of the present invention, there is provided an air conditioning method for air conditioning a predetermined space of a ship, the method comprising: pre-dehumidification step of dehumidifying air introduced from the outside through a dehumidifier installed at an uppermost position on an air supply side; A sensible heat cooling step in which the outside air having undergone the above-described example-dehumidifying step is subjected to sensible heat cooling while passing through an indirect evaporative cooler (IEC); A cooling air supplying step of cooling and humidifying the sensible heat-cooling outdoor air while passing the ambient air through a direct evaporative cooling device to supply the air to the air conditioning space; And an exhausting step of exhausting the air ventilated in the air conditioning space to the outside, wherein the example-dehumidifying step comprises liquid-type dehumidification using a dehumidifying agent, and the dehumidifying agent Supplying the generated waste heat as a regenerative heat source and supplying a cooling heat source for circulating and cooling the seawater in order to prevent the heat of the regenerated desiccant from being transferred to the outside air by the regenerative heat source, / RTI >

According to another aspect of the present invention, it is preferable that when the waste heat generated from the ship is insufficient as a regenerative heat source for the desiccant, it is preferable that the auxiliary regenerative heat source is supplied through the auxiliary regenerative heat source.

According to another aspect of the present invention, there is provided a method of controlling an internal combustion engine, comprising: stopping the execution of the example-dehumidification step, providing outside air introduced from the outside to the sensible heat cooling step, . ≪ / RTI >

In another aspect of the present invention, it is preferable to further include supplying the cooling heat source supplementarily through a water-side free cooling device including a cooling tower and controlled through a proportional controller Do.

In another aspect of the present invention, in the air conditioning space supply step, the cooled and humidified ambient air is branched into two, one branched is supplied to the air conditioning space, and the other is installed at the exhaust side to detect sensible heat It is preferable that it is reheated to a neutral temperature near the room temperature and supplied through the exchanger.

In another aspect of the present invention, when it is difficult to obtain the required neutral temperature with only the heat recovered in the sensible heat exchanger, it is preferable to additionally supply the insufficient heat through the heating coil provided on the exhaust upstream side of the sensible heat exchanger.

In another aspect of the present invention, it is preferable that the air supply branched into two is selectively supplied to the low-temperature side or the neutral side air in accordance with the load condition of the room or the occupant's choice in the terminal box before being supplied to the air- It is preferable to mix them and supply them at a temperature.

The present invention provides an environmentally friendly effect due to carbon emission reduction by introducing the air conditioning system of the ship as an all-outdoor air conditioning system, and in particular, It is possible to operate the system by recycling and to reduce energy consumption. It is possible to perform air-conditioning operation through the energy generated from the ship itself without any additional equipment, and it is possible to dehumidify more environmentally friendly and energy saving supply air by utilizing heat exchange with seawater It is possible to reduce the cooling energy consumption which occurs when the air conditioning inside the ship is minimized through the operation of the minimum refrigerator.

Further, the present invention can effectively provide a comfortable indoor environment even under any operating condition by effectively realizing the concept of a decoupled system that independently performs temperature control and humidity control of the room, and can use only 100% outside air , It is expected to improve the health and work efficiency of residents by eliminating the problems of air quality experienced by air conditioning method using conventional system and various air quality problems caused by recirculation of polluted indoor air, have.

In addition, the present invention can independently adjust the supply amount and the supply air temperature according to different cooling and heating and ventilation demands of each air-conditioning space even if one air conditioner is used, and substantially reduce zero carbon emission There is an effect that can be done.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

FIG. 1 is a configuration diagram showing the overall configuration of an outdoor air conditioning system for an environment friendly ship according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the entire configuration of an environment-friendly air conditioning system for an environment friendly ship according to another embodiment of the present invention.
FIG. 3 is a flow chart showing an air-conditioning method for an eco-friendly ship according to the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Further, terms such as " part, "" unit," " module, "and the like described in the specification may mean a unit for processing at least one function or operation.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, an outdoor air-conditioning system and an outdoor air-conditioning system using environment-friendly energy according to a preferred embodiment of the present invention will be described.

First, an outdoor air conditioning system using environment-friendly energy according to the present invention will be described with reference to FIG. FIG. 1 is a configuration diagram showing the overall configuration of an outdoor air conditioning system for an environment friendly ship according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating the entire configuration of an environmentally friendly air conditioning system for an environment friendly vessel according to another embodiment of the present invention FIG.

As shown in FIG. 1, in an air conditioning system for marine vessels for air-conditioning a ship, an air-conditioning system for environmentally friendly marine vessels according to the present invention includes: A piping module 100 including an air supply side piping and an exhaust side piping; An indirect evaporative cooler (IEC) 210 configured to cool the outside air supplied from the outside by sensible heat; A direct evaporative cooler 220 configured to cool and humidify the air passing through the indirect evaporative cooler 210; A heating coil (310) provided on an exhaust-side pipe through which air circulated in the air conditioning space is discharged; A sensible heat exchanger 320 for sensibly exchanging the air passing through the heating coil 310; And an example-dehumidification module installed on the most upstream side of the air supply pipe for dehumidifying the outside air to be supplied.

In the following description, for the sake of clarity of the present invention, a description thereof will be omitted or omitted.

The piping module 100 includes an air supply side pipe for passing outdoor air introduced from the outside through the air supply side components and supplying the air to the air conditioning space, Side piping.

The indirect evaporative cooler 210 is composed of a dry channel through which the outside air passes and a wet channel through which water is blown, and the outside air passing through it is sensibly cooled.

The direct evaporative cooler 220 is configured to cool and humid the air passing therethrough to meet the set supply and demand conditions.

Here, the direct evaporative cooler 220 has a dry channel through which outside air passes and a wet channel through which water is sprayed. The cooling effect of the indirect evaporative cooler (IEC) The lower the dew point temperature of the passing air, the better. Therefore, it is preferable that the air passing through the wet channel compares the dew point temperature of the outside air with that of the exhaust air so as to use the air having the low dew point temperature.

The heating coil 310 and the sensible heat exchanger 320 may be supplementarily configured as optional design items as described later.

Next, the example-dehumidification module is configured to perform dehumidification (first dehumidification) before ambient air (in particular, hot and humid air in summer) is introduced into the indirect evaporative cooling unit 210, And a liquid desiccant module.

Specifically, the example-dehumidification module includes a liquid desiccant (LD) 410; A high temperature heat source supply device (not shown) for providing waste heat generated in the engine of the ship to provide a high temperature heat source to the liquid type dehumidifier 410 to provide a regenerative heat source for regenerating the desiccant used in the liquid type dehumidifier 410 420); And seawater maintaining a temperature capable of free cooling throughout the year is provided as a cold source so that the heat of the desiccant regenerated by the high temperature heat source supply device (420) in the liquid type dehumidifier (410) And a low temperature heat source supply device 430 for exchanging heat.

The liquid-type dehumidifier 410 may dehumidify the air introduced by using the dehumidifier, and may be any structure as long as it is dehumidified by a wet system, and a detailed description thereof will be omitted.

The high-temperature heat source supply device 420 may be any device capable of supplying a heat source such as hot wind or hot water for heat-exchanging heat to regenerate the moisture-absorbing dehumidifier in the liquid type dehumidifier 410, The present invention includes a ship engine waste heat circulation line 422 for circulating the waste heat generated in the ship's engine 421 to the liquid type dehumidifier 410; And a heat storage unit 423 provided on the ship engine waste heat circulation line 422 to store the generated waste heat.

2, when the waste heat generated in the marine engine is insufficient as a regenerative heat source, the high-temperature heat source supply device 420 may be a gas boiler for providing an auxiliary regenerative heat source to the heat storage unit 423 And an auxiliary regenerative heat source supply device 424.

The example-dehumidification module is configured to bypass the liquid type dehumidifier 410 to a line that introduces outside air to the indirect evaporation type cooler 210 through the liquid type dehumidifier 410, A bypass line 101 for directly introducing outside air into the indirect evaporative cooler 210 without going through; And a waste heat transfer line (102) for circulating the waste heat provided by the high temperature heat source supply device (420) directly to the heating coil (310).

In the present invention, since the outside air is introduced through the liquid type dehumidifier during the summer in high temperature and humidity, the space inside the ship is airtight. By including the bypass line 101 and the waste heat transfer line 102 as described above, The outside air is bypassed through the bypass line 101 without passing through the liquid type dehumidifier 410 to perform the heat exchange with the exhaust in the room by the sensible heat exchanger 320. After the appropriate supply air temperature is set, At this time, the waste heat recovered from the ship engine through the waste heat direct-transfer line 102 is used as a heat source for winter heating. When the temperature of the exhaust gas in the indoor heat exchanger 310 can not be adjusted appropriately after the heat exchange with the indoor air in the heat exchanger 310, the temperature of the air supply is set by exchanging heat after the temperature of the exhaust gas is increased.

That is, in the winter operation, the introduced outside air is bypassed through the bypass line 101 without passing through the liquid type dehumidifier 410, and then the indoor air is exchanged with the exhaust air. In summer, the liquid type dehumidifier 410 In this case, the exhaust heat of the room is primarily recovered while using 100% of the outside air, and the heat of the exhaust of the room is primarily recovered. Environmentally friendly air conditioning is achieved in which the waste heat is recovered again.

Next, the low-temperature heat source supply device 430 improves the dehumidification efficiency without heat transfer to the introduction air (supply air) passing through the liquid type dehumidifier 410 by the heat of the dehumidifier regenerated by the high-temperature heat source supply device 420 The present invention comprises a seawater circulation line 431 for circulating seawater to the liquid type dehumidifier 410; And a cooling water storage unit 432 provided on the seawater circulation line 431 to store the circulated seawater.

The low temperature heat source supply device 430 may include an auxiliary cooling heat source supply device 433 such as a compression type refrigerator capable of supplying a cooling heat source (cooling water) to the cooling water storage unit 432, for example, Side free cooling system which includes a cooling tower and is controlled through a proportional controller for energy saving.

Next, the outside air supplied through the direct evaporative cooling unit 220 is sent to the air conditioning space through the two supply pipes 110 and 120. One of the two supply pipes 110 ) Is supplied with the low-temperature dry air supplied by the direct evaporative cooler 220 and the other air supply pipe 120 is reheated to a neutral temperature near the room temperature through the sensible heat exchanger 320 installed in the exhaust pipe, .

Further, when it is difficult to obtain the required neutral temperature by the heat recovered from the exhaust side, the present invention can be configured such that additional heat is supplied through the heating coil 310 installed on the exhaust side.

The supply air of different temperatures supplied through the two supply pipes 110 and 120 is supplied to the terminal box 330 before being supplied to the air conditioning space, The low temperature side or the neutral side air may be selectively supplied, or may be mixed and supplied at a predetermined required temperature, if necessary.

Hereinafter, an air-conditioning method for an environment-friendly ship according to the present invention will be described with reference to FIG. FIG. 3 is a flow chart showing an air-conditioning method for an eco-friendly ship according to the present invention.

The air conditioning method for an environment friendly ship according to the present invention uses a variable air volume (VAV) type air conditioning system that adjusts the indoor heat environment only by 100% outside air.

As shown in FIG. 3, the air conditioning method for an environmentally friendly ship according to the present invention is an air conditioning method for air conditioning predetermined spaces of a ship, which comprises a dehumidifier (for example, a liquid dehumidifier) A pre-dehumidification step (S100) for preliminary dehumidifying air introduced from the outside (for example, hot and humid air in summer) A sensible heat cooling step (S200) in which the outside air having undergone the above-described example-dehumidifying step is sensibly cooled while passing through the indirect evaporative cooler (IEC); (S300) for cooling and humidifying the sensible heat-cooled outdoor air while passing the sensible heat-cooled outdoor air through a direct evaporative cooling device and supplying the conditioned air to the air conditioning space; And an exhaust step (S400) of exhausting the air ventilated in the air conditioning space to the outside, wherein the example-dehumidifying step (S100) comprises liquid type dehumidification using a dehumidifying agent, wherein the dehumidifying agent containing moisture is regenerated (S110). In order to prevent the heat of the desiccant regenerated by the regenerative heat source from being transferred to the outside air, seawater is circulated to supply the heated heat source (regenerative heat source) And supplying a cooling heat source for cooling (S120).

Here, if the waste heat generated from the ship is insufficient as a regenerative heat source for the desiccant, it may further include supplying an auxiliary regenerative heat source through an auxiliary regenerative heat source such as a gas boiler (S130).

In the case of the winter season, in the case of the winter season, the execution of the example-dehumidifying step is stopped for heating and air-conditioning inside the vessel, the outside air introduced from the outside is supplied to the sensible heat cooling step, And then providing an air conditioning space.

Subsequently, the present invention relates to an auxiliary cooling heat source such as a compression type refrigerator, for example, a cold water side pre-cooling (not shown) which includes a cooling tower for saving energy consumed in cold water supply and is controlled through a proportional controller (cooling water) can be supplementarily supplied through a water-side free cooling device.

Further, in the air conditioning method of the present invention, in the air conditioning space supply step, the cooled and humidified ambient air is branched into two, one branched air is supplied to the air conditioning space, and the other branched air is installed on the exhaust side And is reheated to a neutral temperature near room temperature through a sensible heat exchanger for recovering the heat of the exhaust air.

Further, in the air conditioning method of the present invention, when it is difficult to obtain the required neutral temperature by the heat recovered by the sensible heat exchanger, it is possible to further supply the insufficient heat through the heating coil provided on the upstream side of the sensible heat exchanger .

Here, the supply air supplied at different temperatures branched from the two ends may be supplied to the air conditioning space by a low-temperature side or a neutral side air selectively in a terminal box, Or may be mixed with a predetermined required temperature so as to be supplied.

In the outdoor air conditioning method of the present invention, the outside air is dried in the middle stage (spring and autumn) and is set only by operation of the indirect evaporative cooler (IEC) and direct evaporative cooler (DEC) If it is possible to maintain the supply air temperature, it is possible to maintain the set temperature of the air supply by using the latent heat of evaporation of water operated by only the two devices. If the set air supply temperature can be maintained without the operation of the indirect evaporation cooler, Only set air temperature can be maintained.

The inventor of the present invention has confirmed that the inventor of the present invention has a higher energy saving effect than the system invented in the past when the system is operated through the outdoor air conditioning system using the environment-friendly energy and the outdoor air conditioning system according to the present invention. Specifically, the simulation results of the office building using the air conditioning system and the air conditioning method of the present invention were confirmed to have a high energy saving effect of 50% or more per year compared to the air conditioning system used in the existing building.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Accordingly, the embodiments disclosed herein are for the purpose of describing rather than limiting the technical spirit of the present invention, and it is apparent that the scope of the technical idea of the present invention is not limited by these embodiments. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Piping module 101: Bypass line
102: waste heat transfer line 110, 120: supply pipe
210: Indirect evaporative cooler (IEC) 220: Direct evaporative cooler
310: heating coil 320: sensible heat exchanger
410: liquid type dehumidifier 420: high temperature heat source supply device
421: Ship engine 422: Circulation line
423: heat storage unit 424: auxiliary regenerative heat source supply device
430: Low temperature heat source supply device 431: Seawater circulation line
432: cooling water storage unit 433: auxiliary cooling heat source supply device
S100: Yes - pre-dehumidification step
S110: Ship engine waste heat (regenerative heat source) supply step
S120: Cooling heat source supply step
S130: Auxiliary regenerative heat source supply step
S200: sensible heat cooling step
S300: Supplying air conditioning space
S400: Exhausting step

Claims (15)

A marine air conditioning system for air-conditioning a ship interior,
A piping module including an air supply side piping and an exhaust side piping for introducing outside air into the air conditioning space and discharging the air to the outside;
An indirect evaporative cooler configured to sensibly cool the outside air flowing through the supply side pipe of the piping module;
A direct evaporative cooler configured to cool and humidify the outside air through the indirect evaporative cooler; And
And a dehumidification module installed on the most upstream side of the air supply pipe for dehumidifying the outside air to be supplied,
The dehumidifying module includes a liquid desiccant configured to dehumidify the outside air before the outside air is introduced into the indirect evaporative cooling unit, a high-temperature dehumidifier for providing a regenerative heat source for regenerating the dehumidifier used in the liquid type dehumidifier, A heat source supply device, a low-temperature heat source supply device for providing a heat source for heat exchange so that the heat of the dehumidifier regenerated by the high-temperature heat source supply device is not transferred to the supply air from the liquid type dehumidifier, A bypass line for introducing outside air into the evaporation cooler and a waste heat transfer line for circulating the waste heat provided by the high temperature heat source supply device directly to the supply side pipe upstream of the air conditioning space to be air-
All outdoor air conditioning system for environmentally friendly ship.
The method according to claim 1,
The high-temperature heat source supply device
A ship engine waste heat circulation line for circulating the waste heat generated in the engine of the ship to the liquid type dehumidifier; And
And a heat storage unit provided on the ship engine waste heat circulation line to store the generated waste heat
All outdoor air conditioning system for environmentally friendly ship.
3. The method of claim 2,
The high-temperature heat source supply device further includes an auxiliary regenerative heat source supply device for providing an auxiliary regenerative heat source to the heat storage unit
All outdoor air conditioning system for environmentally friendly ship.
delete 3. The method of claim 2,
The low temperature heat source supply device
A seawater circulation line for circulating the seawater to the liquid type dehumidifier; And
And a cooling water storage unit provided on the seawater circulation line for storing the circulated seawater
All outdoor air conditioning system for environmentally friendly ship.
6. The method of claim 5,
Wherein the low temperature heat source supply device further includes an auxiliary cooling heat source supply device for supplying an auxiliary cooling heat source to the cooling water storage unit,
The auxiliary cooling heat source device comprises a water-side free cooling system including a cooling tower and controlled through a proportional controller.
All outdoor air conditioning system for environmentally friendly ship.
The method according to claim 1,
Further comprising a sensible heat exchanger disposed in an exhaust pipe of the piping module for exchanging sensible heat,
And two branched supply pipes branched into the air conditioning space by branching the rough outside air through the direct evaporation cooler, one of the branched supply pipes is supplied with the outside air through the direct evaporative cooling device, And is configured to be reheated and supplied through the sensible heat exchanger
All outdoor air conditioning system for environmentally friendly ship.
8. The method of claim 7,
A heating coil installed on an upstream side of the sensible heat exchanger to further heat the outside air to be exhausted, and a terminal box installed before the supply air supplied through the branched air supply pipe is supplied to the air conditioning space,
The terminal box is configured such that low-temperature side or neutral-side air is selectively supplied according to the load condition of the air conditioning space or the occupant's choice, or mixed with the required temperature and supplied
All outdoor air conditioning system for environmentally friendly ship.
An air conditioning method for air conditioning predetermined spaces of a ship,
A pre-dehumidification step of preliminarily dehumidifying the air introduced from the outside through the dehumidifier installed in the uppermost stream on the supply side;
A sensible heat cooling step in which the outside air having undergone the above-described example-dehumidifying step is subjected to sensible heat cooling while passing through an indirect evaporative cooler (IEC);
A cooling air supplying step of cooling and humidifying the sensible heat-cooling outdoor air while passing the ambient air through a direct evaporative cooling device to supply the air to the air conditioning space;
An exhausting step of exhausting the air conditioned in the air conditioning space to the outside;
A bypass step of bypassing the liquid type dehumidifier and introducing outside air into the indirect evaporative cooler; And
Circulating the waste heat directly to the supply side piping on the upstream side of the air conditioning space to be air-conditioned,
The example-dehumidification step comprises liquid-type dehumidification using a dehumidifying agent, and the waste heat generated in the engine of the ship is supplied as a regenerating heat source for regenerating the dehumidifying agent containing moisture, and the heat of the desiccant regenerated by the regenerating heat source And a cooling heat source for circulating and cooling the seawater to prevent heat transfer to the outside air
A method of air conditioning for all environment - friendly vessels.
10. The method of claim 9,
Further comprising supplying an auxiliary regenerative heat source through the auxiliary regenerative heat source supply device when waste heat generated from the ship is insufficient as a regenerative heat source for the desiccant
A method of air conditioning for all environment - friendly vessels.
10. The method of claim 9,
The execution of the example-dehumidification step is stopped, the outside air introduced from the outside is supplied to the sensible heat cooling step, and the temperature of the waste heat generated in the marine engine is adjusted to provide the air conditioning space
A method of air conditioning for all environment - friendly vessels.
10. The method of claim 9,
Further comprising supplying a cooling heat source supplementally via a water-side free cooling device including a cooling tower and controlled via a proportional controller
A method of air conditioning for all environment - friendly vessels.
10. The method of claim 9,
The cooled and humidified outdoor air is supplied to the air conditioning space in the air conditioning space supplying step. One of the cooled indoor air and the humidified outdoor air is supplied to the air conditioning space, and the other is a neutral temperature Reheated
A method of air conditioning for all environment - friendly vessels.
14. The method of claim 13,
When it is difficult to obtain the required neutral temperature by the heat recovered by the sensible heat exchanger, the heat of the sensible heat exchanger is additionally supplied through the heating coil installed on the exhaust upstream side of the sensible heat exchanger
A method of air conditioning for all environment - friendly vessels.
14. The method of claim 13,
The supply air supplied in the two branches may be selectively supplied to the low-temperature side or the neutral side air in accordance with the load condition of the room or the choice of the occupant in the terminal box before being supplied to the air conditioning space,
A method of air conditioning for all environment - friendly vessels.

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