US20100154455A1 - Dehumidifying Cooling Device for District Heating - Google Patents

Dehumidifying Cooling Device for District Heating Download PDF

Info

Publication number
US20100154455A1
US20100154455A1 US11/990,087 US99008707A US2010154455A1 US 20100154455 A1 US20100154455 A1 US 20100154455A1 US 99008707 A US99008707 A US 99008707A US 2010154455 A1 US2010154455 A1 US 2010154455A1
Authority
US
United States
Prior art keywords
air
channel
wet channel
outside air
wet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/990,087
Other languages
English (en)
Inventor
Seok-Mann Yoon
Dae-Young Lee
Hoon Lee
Chang-Ku Kang
Sung-Ook Jeong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korea District Heating Corp
Original Assignee
Korea District Heating Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korea District Heating Corp filed Critical Korea District Heating Corp
Assigned to KOREA DISTRICT HEATING CORP. reassignment KOREA DISTRICT HEATING CORP. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JEONG, SUNG-OOK, KANG, CHANG-KU, LEE, DAE-YOUNG, LEE, HOON, YOON, SEOK-MANN
Publication of US20100154455A1 publication Critical patent/US20100154455A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1024—Rotary wheel combined with a humidifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1028—Rotary wheel combined with a spraying device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1032—Desiccant wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/104—Heat exchanger wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1072—Rotary wheel comprising two rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2203/00—Devices or apparatus used for air treatment
    • F24F2203/10—Rotary wheel
    • F24F2203/1084—Rotary wheel comprising two flow rotor segments

Definitions

  • the present invention relates to a dehumidifying cooling device for district heating, and more particularly, to a dehumidifying cooling device for district heating which can carry out an air cooling operation by use of hot water supplied by large-scale or small-scale district heating systems and gas or oil boilers installed in individual households.
  • the amount of energy consumed in domestic and business fields of Korean in 2003 is approximately 55 millions TOE a year, and occupies 25.2% of the total national consumption energy. This rate also corresponds to 41.9% on the basis of electricity.
  • the energy consumption of domestic and business fields shows an average annual rate of increase of 5.3%, whereas the consumption of electricity shows an average annual rate of increase of 12%. Accordingly, it will be appreciated that the consumption of electricity particularly has a rapid increase.
  • the collective-energy industry is evaluated as an effective industry capable of dealing with related international environmental restrictions including a climatic change convention, etc.
  • a climatic change convention etc.
  • approximately 1.2 million families share in the benefits of district heating in 2003, and in particular, 85% of supplied energy is generated by combined heat and power generation. Korea has a plan to expand the propagation range of district heating to 2 million families by 2010.
  • the generation ratio of electricity to heat is fixed at 3:5. Therefore, it is important to keep the ratio of electricity to heat at an appropriate level for maximizing the effect of the collective-energy industry.
  • the above mentioned generation ratio can be fulfilled in winter, but the summer of Korea has an increased electricity load for air cooling and substantially no heat load. As a result, the operation rate of distinct heating in summer decreases to less than 10%, and this causes a deterioration in the economical efficiency of cogeneration. Actually, no generation results reported between June and September in 2003.
  • an absorption chiller is installed to a receptor, such as a large-scale building, etc. such that the chiller performs a central cooling operation using energy delivered from distinct heating facilities.
  • the absorption chiller is designed to chill water flowing in a pipe by use of heat generated during the evaporation of a liquid-phase refrigerant and condense the evaporated gas-phase refrigerant for the reuse thereof.
  • the absorption chiller has a limit in the improvement of performance due to a low temperature of a heating source.
  • the absorption chiller has an uneconomical high water return temperature because it cannot use water having a temperature of 80° C. or less, and suffers from a little difference between the temperature of supplied water and the temperature of water to be returned.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a dehumidifying cooling device for district heating which can carry out an air cooling operation by use of hot water supplied by large-scale or small-scale district heating systems and gas or oil boilers installed in individual households, thereby achieving a reduced device size via the implementation of the cooling operation under the atmospheric pressure state and reducing manufacturing costs by virtue of a simplified system configuration.
  • a dehumidifying cooling device for district heating comprising: a case having a first partition to divide the interior of the case into a wet channel and a dry channel and a second partition to divided the wet channel into a first wet channel, and a second wet channel, the first wet channel being provided at one end thereof with an outside air suction hole for introducing outside air into the first wet channel, the second wet channel being provided at one end thereof with an exhaust hole for discharging the outside air, the second partition being perforated with a flow hole for transferring the outside air from the first wet channel into the second wet channel, the dry channel being provided, at one end thereof, with a circulated air suction hole for introducing circulated air from a conditioning space into the dry channel and, at the other end thereof, with an air supply hole for supplying cooling air into the conditioning space; a sensible heat exchanger configured to rotate about the second partition and serving to heat exchange the outside air,
  • the device further comprises a direct-evaporative cooler installed in the dry channel at a position in front of the regenerative-evaporative cooler, the direct-evaporative cooler serving to carry out a secondary cooling operation of the circulated air discharged from the regenerative-evaporative cooler.
  • a direct-evaporative cooler installed in the dry channel at a position in front of the regenerative-evaporative cooler, the direct-evaporative cooler serving to carry out a secondary cooling operation of the circulated air discharged from the regenerative-evaporative cooler.
  • the device further comprises a first filter installed in the first wet channel at a position between the outside air suction hole and the sensible heat exchanger and serving to remove impurities contained in the outside air.
  • a first filter installed in the first wet channel at a position between the outside air suction hole and the sensible heat exchanger and serving to remove impurities contained in the outside air.
  • the device further comprises an exhaust blower installed in the second wet channel at a position between the sensible heat exchanger and the flow hole and serving to forcibly discharge the outside air from the second wet channel through the exhaust hole.
  • an exhaust blower installed in the second wet channel at a position between the sensible heat exchanger and the flow hole and serving to forcibly discharge the outside air from the second wet channel through the exhaust hole.
  • the device further comprises: a second filter installed between the circulated air suction hole and the dehumidifying wheel and serving to remove impurities contained in the circulated air; and an air supply blower installed between the dehumidifying wheel and the regenerative-evaporative cooler and serving to forcibly discharge the cooled circulated air from the dry channel through the air supply hole, wherein the second filter and the air supply blower are installed in the dry channel.
  • a second filter installed between the circulated air suction hole and the dehumidifying wheel and serving to remove impurities contained in the circulated air
  • an air supply blower installed between the dehumidifying wheel and the regenerative-evaporative cooler and serving to forcibly discharge the cooled circulated air from the dry channel through the air supply hole, wherein the second filter and the air supply blower are installed in the dry channel.
  • the case further has a cooler exhaust hole provided at the dry channel for discharging high-temperature air generated while the regenerative-evaporative cooler carries out a secondary cooling operation.
  • the amount of the high-temperature air to be discharged through the cooler exhaust hole is 30% of the total circulated air.
  • the hot water to be introduced into the heating coil is delivered from any one selected from among a cogeneration plant, a heating boiler, a micro-turbine, a small gas engine, a small gas turbine, a gas boiler, and an oil boiler.
  • the circulated air suctioned through the circulated air suction hole is mixed with the outside air by a predetermined mixing ratio of 7:3.
  • a dehumidifying cooling device for district heating of the present invention having the above described configuration, it is possible to carry out an air cooling operation by use of hot water supplied by large-scale or small-scale district heating systems and gas or oil boilers installed in individual households. Accordingly, the present invention has the effect of achieving a reduced device size via the implementation of the cooling operation under the atmospheric pressure state, and reducing manufacturing costs by virtue of a simplified system configuration.
  • FIG. 1 is a view illustrating the configuration of a dehumidifying cooling device for district heating according to the present invention
  • FIG. 2 is a view illustrating the flow of air in the dehumidifying cooling device for district heating according to the present invention.
  • FIG. 3 is a graph illustrating the temperature distribution of humid air used in the dehumidifying cooling device for district heating according to the present invention.
  • FIG. 1 is a view illustrating the configuration of a dehumidifying cooling device for district heating according to the present invention.
  • the dehumidifying cooling device 100 comprises a case 110 , a first filter 120 , a sensible heat exchanger 130 , a heating coil 140 , a dehumidifying wheel 150 , an exhaust blower 160 , a second filter 170 , an air supply blower 180 , a regenerative-evaporative cooler 190 , and a direct-evaporative cooler 200 .
  • the case 110 is made of a metallic material and has a rectangular box shape.
  • the case 110 is installed with a first partition 113 to divide the interior of the case 110 into a wet channel 112 and a dry channel 111 .
  • the case 110 is further installed with a second partition 114 to divide the wet channel 112 into a first wet channel 112 - 1 and a second wet channel 112 - 2 .
  • the case 110 has an outside air suction hole 115 provided at one end of the first wet channel 112 - 1 for introducing outside air into the first wet channel 112 - 1 and an exhaust hole 116 provided at one end of the second wet channel 112 - 2 for discharging the outside air.
  • the second partition 114 is perforated with a flow hole 114 - 1 for transferring the outside air from the first wet channel 112 - 1 into the second wet channel 112 - 2 .
  • the case 110 also has a circulated air suction hole 117 provided at one end of the dry channel 111 for introducing circulated air from a conditioning space CS into the dry channel 111 and an air supply hole 118 provided at the other end of the dry channel 111 for supplying cooling air into the conditioning space CS.
  • the dry channel 111 of the case 110 is further provided with a cooler exhaust hole 119 for discharging high-temperature air generated while the regenerative-evaporative cooler 190 carries out a secondary cooling operation that will be described hereinafter.
  • the circulated air, introduced into the case 110 through the circulated air suction hole 117 is mixed with the outside air at a ratio of 7:3, to keep the interior of the case 110 in the atmospheric pressure state.
  • the first filter 120 is located in the first wet channel 112 - 1 of the case 110 at a position between the outside air suction hole 115 and the sensible heat exchanger 130 .
  • the first filter 120 is used to remove impurities contained in the suctioned outside air.
  • the first filter 120 is an antibacterial filter, and is easily separable from the case 110 .
  • the sensible heat exchanger 130 has a rotating shaft 131 installed in the same direction as the second partition 114 and takes the form of a disc to rotate about the rotating shaft 131 inside the first and second wet channels 112 - 1 and 112 - 2 of the case 110 .
  • the sensible heat exchanger 130 is used to heat exchange the outside air introduced into the first wet channel 112 - 1 through the outside air suction hole 115 with the outside air to be discharged from the second whet channel 112 - 2 through the exhaust hole 116 .
  • the sensible heat exchanger 130 takes the form of a honeycomb-patterned disc fabricated by processing a thin plate, such as an aluminum plate, etc. suitable for heat exchange. There are provided an additional motor and belt (not shown) for rotation of the sensible heat exchanger 130 .
  • the heating coil 140 is located in the first wet channel 112 - 1 of the case 110 at a position between a rear end of the sensible heat exchanger 130 and the flow hole 114 - 1 .
  • the heating coil 140 is used to raise the temperature of the outside pair passing through the first wet channel 112 - 1 by use of heat of hot water introduced thereinto.
  • the hot water introduced into the heating coil 140 is delivered from any one selected from among a cogeneration plant, a heating boiler, a micro-turbine, a small gas engine, a small gas turbine, a gas boiler, and an oil boiler, and has a temperature within a range of 60 to 120° C.
  • the dehumidifying wheel 150 has a rotating shaft 151 installed in the same direction as the first partition 113 , and takes the form of a disc to rotate about the rotating shaft 151 inside the first wet channel 112 - 1 and the dry channel 111 of the case 110 .
  • the dehumidifying wheel 150 is located behind the heating coil 140 and serves to adsorb and remove moisture contained in the circulated air within the dry channel 111 .
  • the dehumidifying wheel 150 is regenerated by evaporating the adsorbed moisture to thereby supply the moisture into the high-temperature outside air within the first wet channel 112 - 1 .
  • the dehumidifying wheel 150 takes the form of a honeycomb-patterned disc containing an adsorbent, such as silica gel, zeolite, or the like, for adsorbing the moisture contained in the circulated air in a dry adsorption manner. There are provided an additional motor and belt (not shown) for rotation of the dehumidifying wheel 150 .
  • an adsorbent such as silica gel, zeolite, or the like
  • the exhaust blower 160 is installed in the second wet channel 112 - 2 of the case 110 at a position between the sensible heat exchanger 130 and the flow hole 114 - 1 , and used to forcibly discharge the outside air from the second wet channel 112 - 2 through the exhaust hole 116 .
  • the second filter 170 is installed in the dry channel 111 of the case 110 at a position between the circulated air suction hole 117 and the dehumidifying wheel 150 and used to remove impurities and bad smell contained in the circulated air.
  • the second filter 170 is an antibacterial filter, and is easily separable from the case 110 .
  • the air supply blower 180 is installed in the dry channel 111 of the case 110 at a position between the dehumidifying wheel 150 and the sensible heat exchanger 130 and used to forcibly discharge the circulated air from the dry channel 111 through the circulated air supply hole 118 .
  • the regenerative-evaporative cooler 190 is installed in the dry channel 111 at a position between the circulated air supply hole 118 and the dehumidifying wheel 150 . If the circulated air introduced into the dry channel 111 is dehumidified by the dehumidifying wheel 150 so as to be changed to high-temperature dry air and subsequently, heat exchanged and cooled, the regenerative-evaporative cooler 190 further cools the circulated air.
  • the cooled circulated air is delivered to the air supply hole 118 of the case 110 , whereas the high-temperature air generated during cooling is delivered to the cooler exhaust hole 119 .
  • the amount of the high-temperature air to be discharged through the cooler exhaust hole 119 is 30% of the total circulated air.
  • the interior of the regenerative-evaporative cooler 190 is divided into a dry channel and a wet channel. If a part of the air, passing through the dry channel, is delivered into the wet channel, the air is cooled as water is evaporated by the high-temperature surface of the wet channel, thereby acting to absorb heat from the remaining higher temperature air passing through the dry channel. Thereby, the air passing through the dry channel can be cooled to a dew-point temperature to the maximum extent without an increase of humidity.
  • the configuration of the regenerative-evaporative cooler is disclosed in Korea Patent Registration No. 0409265 and thus, a detailed description thereof will be omitted herein.
  • the direct-evaporative cooler 200 is installed in the dry channel 111 of the case 110 at a position in front of the regenerative-evaporative cooler 190 .
  • the direct-evaporative cooler 200 serves to carry out a secondary cooling operation of the circulated air from the regenerative-evaporative cooler 190 , so as to supply the resulting air into the conditioning space CS through the air supply hole 118 of the case 110 .
  • FIG. 2 is a view illustrating the flow of air in the dehumidifying cooling device for district heating according to the present invention
  • FIG. 3 is a graph illustrating the temperature distribution of humid air used in the dehumidifying cooling device.
  • the dehumidified circulated air is heated by adsorptive heat generated from the surface of the dehumidifying wheel 150 .
  • the resulting high-temperature and low-humidity circulated air passes through the regenerative-evaporative cooler 190 .
  • the circulated air is introduced into the regenerative-evaporative cooler 190 , 70% of the circulated air is cooled while passing through the regenerative-evaporative cooler 190 , and 30% of the circulated air is discharged to the outside through the cooler exhaust hole 119 .
  • the circulated air having passed through the regenerative-evaporative cooler 190 , is secondarily cooled while passing through the direct-evaporative cooler 200 , thereby being supplied into the conditioning space CS through the air supply hole 118 of the case 110 .
  • high-temperature and high-humidity outside air is introduced into the first wet channel 112 - 1 through the outside air suction hole 115 and passes through the first filter 120 under the operation of the exhaust blower 160 .
  • the filtered outside air is heat exchanged with the high-temperature and high-humidity outside air in the second wet channel 112 - 2 while passing through the sensible heat exchanger 130 .
  • the outside air with the raised temperature passes through the heating coil 140 .
  • the temperature of the outside air is further raised by hot water supplied into the heating coil 140 .
  • the outside air to be delivered into the dehumidifying wheel 150 has a significantly raised temperature.
  • the dehumidifying wheel 150 rotating in a state of adsorbing moisture therein, the outside air forcibly evaporates moisture thereof. Thereafter, the dehumidified outside air is moved into the second wet channel 112 - 2 through the flow hole 114 - 1 .
  • the surface of the dehumidifying wheel 150 is returned to an original dried state thereof, thereby recovering a dehumidifying ability thereof.
  • the dehumidifying cooling device for district heating according to the present invention, if circulated air ⁇ circle around (1) ⁇ is introduced into the case, the circulated air ⁇ circle around (1) ⁇ is mixed with outside air ⁇ circle around (7) ⁇ , to produce mixed air ⁇ circle around (2) ⁇ having a raised temperature and absolute humidity. While passing through the dehumidifying wheel, the mixed air ⁇ circle around (2) ⁇ is changed to higher-temperature and lower absolute-humidity air ⁇ circle around (3) ⁇ .
  • the air ⁇ circle around (3) ⁇ is heat exchanged to produce air ⁇ circle around (4) ⁇ having a rapid drop only in temperature.
  • the temperature of the air ⁇ circle around (4) ⁇ is changed into air ⁇ circle around (5) ⁇ having a slightly lowered temperature and slightly raised absolute humidity.
  • the filtered air ⁇ circle around (8) ⁇ has the same temperature and absolute humidity as those of the air ⁇ circle around (7) ⁇ .
  • the air ⁇ circle around (8) ⁇ is heat exchanged with the outside air ⁇ circle around (11) ⁇ in the first wet channel while passing through the sensible heat exchanger.
  • the resulting heat exchanged air ⁇ circle around (9) ⁇ is slightly raised in temperature, but keeps the same absolute humidity as that of the air ⁇ circle around (8) ⁇ .
  • the air ⁇ circle around (9) ⁇ is raised only in temperature while passing through the heating coil, resulting in high-temperature air ⁇ circle around (10) ⁇ .
  • the air ⁇ circle around (10) ⁇ is dropped in temperature, but raised in absolute humidity in the course of passing through the dehumidifying wheel, thereby being changed to low-temperature and high-humidity air ⁇ circle around (11) ⁇ . Then, while passing through the sensible heat exchanger in the second wet channel, the air ⁇ circle around (11) ⁇ is heat exchanged with the outside air ⁇ circle around (8) ⁇ in the first wet channel such that the heat exchanged air ⁇ circle around (12) ⁇ , which is slightly dropped in temperature but keeps the same absolute humidity as the air ⁇ circle around (11) ⁇ , is discharged through the exhaust hole.
  • the dehumidifying cooling device for district heating air to be supplied into a conditioning indoor space is subjected to the transfer of heat and moisture via a direct contact with the dehumidifying cooling device.
  • This has the effect of achieving excellent transfer efficiency and producing and supplying cooling air with a low-temperature heating source of 60° C.
  • the dehumidifying cooling device is operable in the atmospheric pressure state and has a simplified configuration, resulting in a considerable reduction of manufacturing costs.
  • a dehumidifying and cooling device can be installed to residential and business buildings, etc. using hot water delivered by district heating facilities, so as to utilize the hot water as a source for cooling a room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Central Air Conditioning (AREA)
US11/990,087 2007-02-01 2007-03-08 Dehumidifying Cooling Device for District Heating Abandoned US20100154455A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2007-0010673 2007-02-01
KR1020070010673A KR100773435B1 (ko) 2007-02-01 2007-02-01 지역난방용 제습냉방장치
PCT/KR2007/001148 WO2008041788A1 (fr) 2007-02-01 2007-03-08 Dispositif de déshumidification par refroidissement pour chauffage urbain

Publications (1)

Publication Number Publication Date
US20100154455A1 true US20100154455A1 (en) 2010-06-24

Family

ID=39060871

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/990,087 Abandoned US20100154455A1 (en) 2007-02-01 2007-03-08 Dehumidifying Cooling Device for District Heating

Country Status (8)

Country Link
US (1) US20100154455A1 (fr)
EP (1) EP2078175B1 (fr)
JP (1) JP2009530586A (fr)
KR (1) KR100773435B1 (fr)
CN (1) CN101346588B (fr)
MY (1) MY158155A (fr)
SA (1) SA08290039B1 (fr)
WO (1) WO2008041788A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110067426A1 (en) * 2009-09-21 2011-03-24 Hwang Young Kyu Apparatus for Treating Air
US20120222425A1 (en) * 2011-01-18 2012-09-06 Alstom Technology Ltd Method for operating a power plant and gas turbine unit for implementing the method
CN105135467A (zh) * 2015-09-25 2015-12-09 无锡市华通电力设备有限公司 抽屉式暖风器
US20160146513A1 (en) * 2014-11-24 2016-05-26 Korea Institute Of Science And Technology Desiccant cooling system

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101672502B (zh) * 2009-06-19 2012-06-06 上海天菡空气处理设备有限公司 热泵再生加热型节能除湿机的系统
KR101229676B1 (ko) * 2011-04-27 2013-02-04 주식회사 경동나비엔 하이브리드 냉방 장치
KR101445378B1 (ko) * 2012-08-24 2014-09-29 한라엔컴 주식회사 제습 냉방 장치
CN103047795B (zh) * 2012-12-27 2015-04-15 深圳市奥宇控制系统有限公司 蒸发制冷系统
KR101436613B1 (ko) * 2013-10-29 2014-11-05 한국지역난방공사 냉방과 환기 및 가습이 가능한 지역 냉방용 제습 냉방시스템
WO2015170861A1 (fr) * 2014-05-07 2015-11-12 주식회사 경동나비엔 Module de chaudière de chauffage central ou urbain sans unité de combustion, qui utilise une opération de déshumidification et de refroidissement
US10197310B2 (en) 2014-06-20 2019-02-05 Nortek Air Solutions Canada, Inc. Systems and methods for managing conditions in enclosed space
CN107850335B (zh) 2015-05-15 2021-02-19 北狄空气应对加拿大公司 利用液-气式膜能量交换器进行液体冷却
US11092349B2 (en) 2015-05-15 2021-08-17 Nortek Air Solutions Canada, Inc. Systems and methods for providing cooling to a heat load
CA3010515C (fr) 2016-01-08 2023-03-21 Nortek Air Solutions Canada, Inc. Systeme d'air d'appoint integre dans un systeme de recirculation d'air a 100 %
CN106568141A (zh) * 2016-10-26 2017-04-19 海英荷普曼船舶设备(常熟)有限公司 部分回风与全热回收转轮联合空调处理装置
CN109084356B (zh) * 2018-09-30 2023-11-21 陈连祥 一种需冷工艺介质高温位提取热量循环冷却的集中供热系统
CN112443944A (zh) * 2019-08-28 2021-03-05 青岛海尔空调器有限总公司 用于控制加湿装置的方法、加湿装置、空调
JP6881623B1 (ja) * 2020-01-20 2021-06-02 ブラザー工業株式会社 空調機
CN112728661B (zh) * 2021-01-20 2022-12-27 广东美的暖通设备有限公司 双转轮调湿装置及具有其的空调系统及控制方法和控制器

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673512A (en) * 1970-09-22 1972-06-27 Allen Bradley Co Servo amplifier
US5758509A (en) * 1995-12-21 1998-06-02 Ebara Corporation Absorption heat pump and desiccant assisted air conditioning apparatus
US5890372A (en) * 1996-02-16 1999-04-06 Novelaire Technologies, L.L.C. Air conditioning system for cooling warm moisture-laden air
US6029467A (en) * 1996-08-13 2000-02-29 Moratalla; Jose M. Apparatus for regenerating desiccants in a closed cycle
US6205797B1 (en) * 1997-04-11 2001-03-27 Ebara Corporation Air-conditioning system and method of operating the same
US6311511B1 (en) * 1997-10-24 2001-11-06 Ebara Corporation Dehumidifying air-conditioning system and method of operating the same
US6334316B1 (en) * 1998-03-17 2002-01-01 Ebara Corporation Desiccant assisted air conditioning system
US6338258B1 (en) * 2001-01-17 2002-01-15 Korea Institute Of Science And Technology Regenerative evaporative cooler
US20040000152A1 (en) * 2002-06-28 2004-01-01 Fischer John C. Desiccant-based dehumidifaction system and method
US20040155713A1 (en) * 2003-02-11 2004-08-12 Prianishnikov Vladimir N. Transimpedance amplifier with feedback resistive network
US6854279B1 (en) * 2003-06-09 2005-02-15 The United States Of America As Represented By The Secretary Of The Navy Dynamic desiccation cooling system for ships
US7133346B2 (en) * 2001-12-14 2006-11-07 Sharp Kabushiki Kaisha Photo-detector amplifier circuit for optical disk device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
YU45426B (en) * 1986-07-09 1992-05-28 Od Inzh Str Inst Device for indirect vapourisive air cooling inside a building
US5170633A (en) * 1991-06-24 1992-12-15 Amsted Industries Incorporated Desiccant based air conditioning system
KR950003071B1 (ko) * 1992-10-21 1995-03-30 주식회사 신성엔지니어링 공기조화시스템
JP2791947B2 (ja) * 1996-05-31 1998-08-27 株式会社新来島どっく 熱交換式除湿装置
JPH11197439A (ja) 1998-01-14 1999-07-27 Ebara Corp 除湿空調装置
JP3078280B1 (ja) * 1999-05-28 2000-08-21 株式会社ア−スクリ−ン東北 省エネ空調方法とその装置及び使用方法
KR200197787Y1 (ko) 2000-04-28 2000-09-15 주식회사유한프랜트 폐열 회수식 냉방장치에 적합한 가습 겸용 냉난방 장치
JP2002013759A (ja) * 2000-06-28 2002-01-18 Earth Clean Tohoku:Kk デシカント空調方法
JP2002286250A (ja) 2001-03-26 2002-10-03 Matsushita Seiko Co Ltd デシカント空調システム
JP2003130391A (ja) * 2001-10-18 2003-05-08 Sanyo Electric Co Ltd 空気調和機
DE10220631A1 (de) * 2002-05-10 2003-11-20 Loeffler Michael Verfahren zur Sorptionsklimatisierung mit Prozeßführung in einem Wärmetauscher
CN2553289Y (zh) * 2002-05-17 2003-05-28 无锡沙漠除湿设备厂 自循环式转轮除湿机
JP2004069222A (ja) * 2002-08-08 2004-03-04 Matsushita Ecology Systems Co Ltd 換気調湿装置
JP2004085096A (ja) * 2002-08-27 2004-03-18 Univ Waseda ハイブリッド型デシカント空調システム
CN2594695Y (zh) * 2002-11-22 2003-12-24 浙江省普瑞科技有限公司 一种空气除湿机
JP4103563B2 (ja) * 2002-11-29 2008-06-18 ダイキン工業株式会社 空気調和装置
KR100504503B1 (ko) * 2003-01-14 2005-08-01 엘지전자 주식회사 공기조화시스템
KR100550575B1 (ko) 2004-08-17 2006-02-10 엘지전자 주식회사 제습기를 갖는 발전 공조 시스템
JP2006071168A (ja) * 2004-09-01 2006-03-16 Sanden Corp 空気調和装置

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673512A (en) * 1970-09-22 1972-06-27 Allen Bradley Co Servo amplifier
US5758509A (en) * 1995-12-21 1998-06-02 Ebara Corporation Absorption heat pump and desiccant assisted air conditioning apparatus
US5890372A (en) * 1996-02-16 1999-04-06 Novelaire Technologies, L.L.C. Air conditioning system for cooling warm moisture-laden air
US6029467A (en) * 1996-08-13 2000-02-29 Moratalla; Jose M. Apparatus for regenerating desiccants in a closed cycle
US6205797B1 (en) * 1997-04-11 2001-03-27 Ebara Corporation Air-conditioning system and method of operating the same
US6311511B1 (en) * 1997-10-24 2001-11-06 Ebara Corporation Dehumidifying air-conditioning system and method of operating the same
US6334316B1 (en) * 1998-03-17 2002-01-01 Ebara Corporation Desiccant assisted air conditioning system
US6338258B1 (en) * 2001-01-17 2002-01-15 Korea Institute Of Science And Technology Regenerative evaporative cooler
US7133346B2 (en) * 2001-12-14 2006-11-07 Sharp Kabushiki Kaisha Photo-detector amplifier circuit for optical disk device
US7263046B2 (en) * 2001-12-14 2007-08-28 Sharp Kabushiki Kaisha Photo-detector amplifier circuit for optical disk device
US20040000152A1 (en) * 2002-06-28 2004-01-01 Fischer John C. Desiccant-based dehumidifaction system and method
US20040155713A1 (en) * 2003-02-11 2004-08-12 Prianishnikov Vladimir N. Transimpedance amplifier with feedback resistive network
US6854279B1 (en) * 2003-06-09 2005-02-15 The United States Of America As Represented By The Secretary Of The Navy Dynamic desiccation cooling system for ships

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110067426A1 (en) * 2009-09-21 2011-03-24 Hwang Young Kyu Apparatus for Treating Air
US9038409B2 (en) * 2009-09-21 2015-05-26 Korea Research Institute Of Chemical Technology Apparatus for treating air by using porous organic-inorganic hybrid materials as an absorbent
US20120222425A1 (en) * 2011-01-18 2012-09-06 Alstom Technology Ltd Method for operating a power plant and gas turbine unit for implementing the method
US9488072B2 (en) * 2011-01-18 2016-11-08 General Electric Technology Gmbh Method for operating a power plant and gas turbine unit for implementing the method
US20160146513A1 (en) * 2014-11-24 2016-05-26 Korea Institute Of Science And Technology Desiccant cooling system
US10240807B2 (en) * 2014-11-24 2019-03-26 Korea Institute Of Science And Technology Desiccant cooling system
CN105135467A (zh) * 2015-09-25 2015-12-09 无锡市华通电力设备有限公司 抽屉式暖风器

Also Published As

Publication number Publication date
MY158155A (en) 2016-09-15
JP2009530586A (ja) 2009-08-27
EP2078175A1 (fr) 2009-07-15
SA08290039B1 (ar) 2012-03-24
EP2078175B1 (fr) 2017-05-17
EP2078175A4 (fr) 2013-07-17
KR100773435B1 (ko) 2007-11-05
WO2008041788A1 (fr) 2008-04-10
CN101346588B (zh) 2010-06-16
CN101346588A (zh) 2009-01-14

Similar Documents

Publication Publication Date Title
EP2078175B1 (fr) Dispositif de déshumidification par refroidissement pour chauffage urbain
EP1943468B1 (fr) Dispositif de déshumidification par refroidissement pour chauffage urbain
Kojok et al. Hybrid cooling systems: A review and an optimized selection scheme
KR101229676B1 (ko) 하이브리드 냉방 장치
US7305849B2 (en) Sorptive heat exchanger and related cooled sorption process
KR20110092773A (ko) 하이브리드 냉방 시스템
Hwang et al. In-depth analysis of the performance of hybrid desiccant cooling system incorporated with an electric heat pump
US20140318369A1 (en) Dehumidification apparatus, and air conditioning apparatus and air conditioning system having the same
KR101441486B1 (ko) 흡수식 냉동기 및 제습 냉방기를 이용한 냉방 장치
JP2007255780A (ja) 太陽熱利用のデシカント空調システム
JP2003279070A (ja) ハイブリッド型デシカント空調システム
JPH10300128A (ja) 冷媒自然循環冷却除湿装置およびこの装置を併設した空気調和装置
KR100780068B1 (ko) 제습 냉방기를 이용한 제습냉방 시스템
KR950003070B1 (ko) 하이브리드(hybrid) 공기조화시스템
WO2004081462A1 (fr) Procede de conditionnement d'air a deshydratant liquide
JP2008304113A (ja) 調湿空調システム
KR100208627B1 (ko) 복합식 공기 열원 히트 펌프를 이용한 냉 난방 시스템
Gentile et al. Water production from the atmosphere in arid climates using low grade solar heat
Khoukhi et al. Performance of desiccant-based cooling systems in hot-humid climates: A review
Al-Ahmedi Solar air conditioning system using desiccant wheel technology as a solution for Iraq
Gorai et al. A comprehensive review on solid desiccant-assisted novel dehumidification and its advanced regeneration methods
JP2003214655A (ja) デシカント空調装置
Kale Pranay et al. A Review on Design and Development of Three In One Air Cooling System
JP2003214654A (ja) デシカント空調装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: KOREA DISTRICT HEATING CORP.,KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YOON, SEOK-MANN;LEE, HOON;JEONG, SUNG-OOK;AND OTHERS;REEL/FRAME:020508/0985

Effective date: 20080121

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION