CA2108501A1 - Combined cooling and heating process and device for conditioning a room - Google Patents
Combined cooling and heating process and device for conditioning a roomInfo
- Publication number
- CA2108501A1 CA2108501A1 CA002108501A CA2108501A CA2108501A1 CA 2108501 A1 CA2108501 A1 CA 2108501A1 CA 002108501 A CA002108501 A CA 002108501A CA 2108501 A CA2108501 A CA 2108501A CA 2108501 A1 CA2108501 A1 CA 2108501A1
- Authority
- CA
- Canada
- Prior art keywords
- air
- heat exchanger
- room
- turbine
- compressor
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- 230000003750 conditioning effect Effects 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000001143 conditioned effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 101100238304 Mus musculus Morc1 gene Proteins 0.000 description 1
- RRDGKBOYQLLJSW-UHFFFAOYSA-N bis(2-ethylhexyl) 7-oxabicyclo[4.1.0]heptane-3,4-dicarboxylate Chemical compound C1C(C(=O)OCC(CC)CCCC)C(C(=O)OCC(CC)CCCC)CC2OC21 RRDGKBOYQLLJSW-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
Classifications
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/004—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0085—Systems using a compressed air circuit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Air-Conditioning For Vehicles (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Central Air Conditioning (AREA)
- Central Heating Systems (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A combined cooling and heating process for conditioning a room, and a device for carrying out the process, particularly for use in railroad passenger coaches. When the room is to be heated and no longer cooled, two valves are switched so that the process air flows through the units required for cooling, such as a heat exchanger and regenerator, without heat exchange. The air heated by the compressor arrives in the useful heat exchanger via a bypass line. The air which is cooled in the useful heal exchanger, but which is still under pressure, is directed via another bypass line to a turbine, where it is expanded and released into the atmosphere. In so doing, the air of the room to be heated is sucked in by a pre-compressor.
A combined cooling and heating process for conditioning a room, and a device for carrying out the process, particularly for use in railroad passenger coaches. When the room is to be heated and no longer cooled, two valves are switched so that the process air flows through the units required for cooling, such as a heat exchanger and regenerator, without heat exchange. The air heated by the compressor arrives in the useful heat exchanger via a bypass line. The air which is cooled in the useful heal exchanger, but which is still under pressure, is directed via another bypass line to a turbine, where it is expanded and released into the atmosphere. In so doing, the air of the room to be heated is sucked in by a pre-compressor.
Description
~C~ UHE~ ~`i-J~`~TH~II ~t d I TEL: 21.~ r ~r I S r. 1 ~ _ 4 r~ P~1 - 4 2108~1 l~ROUNn OF T~
FYeld Or tlllnYentlQ~
Thc invention relatt~s to a combhled coolin~ and heating process for conditioning a room as weil as ~o a device for carryh~g oul this process, particularly for use in Milroad passengcr coaches.
De~rlDtlon o~ ~
The object of cold-air devices is to cool a ro~m by utilizing the thermodynamic characteris~ics of the air in a Joul circulRting process. Difrerenl melhods for reali~ing Ihis process ~re known. A simple circuil cmbodics a closed proccss and includes a compressor-cxpansion molor unit and two at1nosphoric air heat exchangcrs on the warm side and on the cool side (Bosnjakowic: "Technioche Thermodynamik", Part 1, 4~h edi~ion, Leipzig and ~resdcn, pages 291-2gS). In order to improve ~he use emcicncy, this basic process was supplemented by mu]tiple-s~e compression wilh or wi1hou~ in~ermediate condensers or coolers, with regenera~ivc hcat exchange, and by opcning the circulation process on Ihe cold side, on the warm side, or on both sides (Kauffeld, Konig, Kruse: "Lufl als Ka]tcmittol", ~KV-Tagungsl)ericht 1991, pages 217-237). A further improvcmcnt is described in DE-rS 31 39 398, where the air hulnidity which is condcnsed in the afler-coolcr in an open cold-air dcvice process with two-stagc compression is fed back again, at least in part, ~o ~he process in a regencrative manner prior ~o ~hc compressor of sl)e second stage so as to utilize the energy contcnt of the wa~er Ihrough ev~poration and accordingly ;mprove Ihe efficicncy of the sys~em. All Df th~e methods havc th¢ disad~an~age lhat thcy rcquire morc drive encrgy per uni1 ~f cooling output FF, I-L-lHEll Pl-lIITHIII f~ al T~L: 212 S~ Clf_T, 13, 1l3s~3 4:51~ P11 ~ -~
2108~1 lhan comparal)le cold- vapor dcvice proccsscs so that their use remains limited to speci~]
applications.
~ old-air dcvices are commonly use~l lo cool sirplane cabins, the advantage with respect t~ energy consisting in that thc difrerence in output belween the turbin¢ and compressor is flpplied by feeding con~press¢d air from the propulsion system, which air mus~ be generated anyway for operation of the pro?ulsion system. O~herwise, providing ener6y by me~ns o~ a combustion process proves too costly.
This solulion is expsndcd upon in l~E-PS 38 37 052 by a process for simultaneously generating heat and conling by supplying cncrgy in a combustic>n chamber, two turbine-expansion machine unils and correspondin6 hcal exchangers. Thc disadvan~age of ~his process is in lhal there nnust be a nced for lhe simultAneous svailabilily of heat and cool;ng, even thou~h it is possible to shift capacities lo a certain extent by sw;lchin6 on an accumulator;
howcv¢r, this burdens the energy emciency.
rF~ HE~ F~ T~ t ~1 IEL: clc' '~~ ol T. S7. lr~ 4:'~ F:11 c -21B~iOl Accordingly, it is an objec~ of the present invention to provide a methc)d and a device for conditioning a room, by which either heRt or cooling can be provided and with which the snnual energy consumption can bc substRnlially reduced.
Pursuant to thss ol~jecl, and others wh;ch will become apparent here~fter, one aspect of the present invention resides in a combined cooling and healing process for c~ndilioning a room, particu1arly railroad passenger coaches, by which eilher coo~ing or heating can be provided.
ln the evellt ~hat the room is to be heated and no longer cooled, two valves are switcheJ, accordin~g to the inven~ion, and the proccss air flows tllrollgh thc unils rcquired for coo1ing, i.e. the hcat exchallgcr and rcgcncra~or, wilhoul heat cxchange. The air hea~ed by the compressor arrivcs in tbe uscfill heat exchanger via a bypass line. The alr which is cooled in lhe userul llcat exchan~er, bul is slill under pressure, is directed ViA another bypass line to the inlel side of a lurbine where it is expanded and released into ~he atmospherc. In so doing, the air of Ihe room to be heated is sucked in by a pre-comprcssor.
According to a preferred embodiment of thc invention, thc condensation water of thc inlct asr consisling of recycl~d alr and fresh air, which condensation water occurs in the uscful hcat cxchangcr during the cooling process, is fed to a regenerator together with the wastc or cxhausl air so thal Ihe efhciency of Ihe system can be signific~sntly improved, In anothcr embosiimenl of the invention the intake sidc of thc pre-compressor is opened toward lhc atmosphere during the heating process whcn no frcsh air can be fed to the room lo bs heated.
F,c~ -JHE~ FIJllTh!;l ~t dl TI~L~ lc 9-~c' r.4r'~ C T. 1~ t3 F~l~l F
2108 ,r~ o ~
The inventis)rl further encompflsses a device for carrying oul the above~mentioned proccss. This device has a mo~or-driven prc-compressor, a combined comprcssor-turbille unit wi~h an intermcdiAte heat exchan~er havin~ an a~mosplleric-air heat exchan~er and a re~cneralor, a useful heat exchanger connected downslream for cooling the inlet air of a room ~o be conditioned, and corr¢sponding conncction lines. A bypass line with a reversing valvc is localed bétween the outlel side of thc atmospheric-air hcal exch~nger and the inlet side of the useful heat exchanger. Anothcr bypass line, lil~cwise wi~h reversin~ val~e, is situated bctween ~he outlet side of the useful heal exchan~er and thc illlel side of the tur~ine.
The advanta~e of ~he invenlion consists in lhat lhe energy consumpl;on ean be considerably reduced and lhe emciency of thc sysleln subslantiA1ly improvcd in comparison to thc hca~ing Or railroad passenger coaches wi~h electrical resis~ance hcalin~ elements and c~oling by cool-vapor machines.
The various featur¢s of novelty which char~cterize thc invenlion are pointed out with pa~icularity in the claims annexed ~o and forming a parl of the disclosure. Por A better undcrstandin~ of the invention, its operating advanta~es, and specifc objects attained by its use, reference should be had to the drawin~ and descriplive mat~er in which thcrc are illuslMled and describeJ preferred embodiments of Ihc inven~ion.
f r_ O~tEII Fl IllTHlli l=t ~1 TEL: ~lc '~_ '4--'~ O~T. 1--~ Pl1 F O
FYeld Or tlllnYentlQ~
Thc invention relatt~s to a combhled coolin~ and heating process for conditioning a room as weil as ~o a device for carryh~g oul this process, particularly for use in Milroad passengcr coaches.
De~rlDtlon o~ ~
The object of cold-air devices is to cool a ro~m by utilizing the thermodynamic characteris~ics of the air in a Joul circulRting process. Difrerenl melhods for reali~ing Ihis process ~re known. A simple circuil cmbodics a closed proccss and includes a compressor-cxpansion molor unit and two at1nosphoric air heat exchangcrs on the warm side and on the cool side (Bosnjakowic: "Technioche Thermodynamik", Part 1, 4~h edi~ion, Leipzig and ~resdcn, pages 291-2gS). In order to improve ~he use emcicncy, this basic process was supplemented by mu]tiple-s~e compression wilh or wi1hou~ in~ermediate condensers or coolers, with regenera~ivc hcat exchange, and by opcning the circulation process on Ihe cold side, on the warm side, or on both sides (Kauffeld, Konig, Kruse: "Lufl als Ka]tcmittol", ~KV-Tagungsl)ericht 1991, pages 217-237). A further improvcmcnt is described in DE-rS 31 39 398, where the air hulnidity which is condcnsed in the afler-coolcr in an open cold-air dcvice process with two-stagc compression is fed back again, at least in part, ~o ~he process in a regencrative manner prior ~o ~hc compressor of sl)e second stage so as to utilize the energy contcnt of the wa~er Ihrough ev~poration and accordingly ;mprove Ihe efficicncy of the sys~em. All Df th~e methods havc th¢ disad~an~age lhat thcy rcquire morc drive encrgy per uni1 ~f cooling output FF, I-L-lHEll Pl-lIITHIII f~ al T~L: 212 S~ Clf_T, 13, 1l3s~3 4:51~ P11 ~ -~
2108~1 lhan comparal)le cold- vapor dcvice proccsscs so that their use remains limited to speci~]
applications.
~ old-air dcvices are commonly use~l lo cool sirplane cabins, the advantage with respect t~ energy consisting in that thc difrerence in output belween the turbin¢ and compressor is flpplied by feeding con~press¢d air from the propulsion system, which air mus~ be generated anyway for operation of the pro?ulsion system. O~herwise, providing ener6y by me~ns o~ a combustion process proves too costly.
This solulion is expsndcd upon in l~E-PS 38 37 052 by a process for simultaneously generating heat and conling by supplying cncrgy in a combustic>n chamber, two turbine-expansion machine unils and correspondin6 hcal exchangers. Thc disadvan~age of ~his process is in lhal there nnust be a nced for lhe simultAneous svailabilily of heat and cool;ng, even thou~h it is possible to shift capacities lo a certain extent by sw;lchin6 on an accumulator;
howcv¢r, this burdens the energy emciency.
rF~ HE~ F~ T~ t ~1 IEL: clc' '~~ ol T. S7. lr~ 4:'~ F:11 c -21B~iOl Accordingly, it is an objec~ of the present invention to provide a methc)d and a device for conditioning a room, by which either heRt or cooling can be provided and with which the snnual energy consumption can bc substRnlially reduced.
Pursuant to thss ol~jecl, and others wh;ch will become apparent here~fter, one aspect of the present invention resides in a combined cooling and healing process for c~ndilioning a room, particu1arly railroad passenger coaches, by which eilher coo~ing or heating can be provided.
ln the evellt ~hat the room is to be heated and no longer cooled, two valves are switcheJ, accordin~g to the inven~ion, and the proccss air flows tllrollgh thc unils rcquired for coo1ing, i.e. the hcat exchallgcr and rcgcncra~or, wilhoul heat cxchange. The air hea~ed by the compressor arrivcs in tbe uscfill heat exchanger via a bypass line. The alr which is cooled in lhe userul llcat exchan~er, bul is slill under pressure, is directed ViA another bypass line to the inlel side of a lurbine where it is expanded and released into ~he atmospherc. In so doing, the air of Ihe room to be heated is sucked in by a pre-comprcssor.
According to a preferred embodiment of thc invention, thc condensation water of thc inlct asr consisling of recycl~d alr and fresh air, which condensation water occurs in the uscful hcat cxchangcr during the cooling process, is fed to a regenerator together with the wastc or cxhausl air so thal Ihe efhciency of Ihe system can be signific~sntly improved, In anothcr embosiimenl of the invention the intake sidc of thc pre-compressor is opened toward lhc atmosphere during the heating process whcn no frcsh air can be fed to the room lo bs heated.
F,c~ -JHE~ FIJllTh!;l ~t dl TI~L~ lc 9-~c' r.4r'~ C T. 1~ t3 F~l~l F
2108 ,r~ o ~
The inventis)rl further encompflsses a device for carrying oul the above~mentioned proccss. This device has a mo~or-driven prc-compressor, a combined comprcssor-turbille unit wi~h an intermcdiAte heat exchan~er havin~ an a~mosplleric-air heat exchan~er and a re~cneralor, a useful heat exchanger connected downslream for cooling the inlet air of a room ~o be conditioned, and corr¢sponding conncction lines. A bypass line with a reversing valvc is localed bétween the outlel side of thc atmospheric-air hcal exch~nger and the inlet side of the useful heat exchanger. Anothcr bypass line, lil~cwise wi~h reversin~ val~e, is situated bctween ~he outlet side of the useful heal exchan~er and thc illlel side of the tur~ine.
The advanta~e of ~he invenlion consists in lhat lhe energy consumpl;on ean be considerably reduced and lhe emciency of thc sysleln subslantiA1ly improvcd in comparison to thc hca~ing Or railroad passenger coaches wi~h electrical resis~ance hcalin~ elements and c~oling by cool-vapor machines.
The various featur¢s of novelty which char~cterize thc invenlion are pointed out with pa~icularity in the claims annexed ~o and forming a parl of the disclosure. Por A better undcrstandin~ of the invention, its operating advanta~es, and specifc objects attained by its use, reference should be had to the drawin~ and descriplive mat~er in which thcrc are illuslMled and describeJ preferred embodiments of Ihc inven~ion.
f r_ O~tEII Fl IllTHlli l=t ~1 TEL: ~lc '~_ '4--'~ O~T. 1--~ Pl1 F O
2 1 ~
~i~ure 1 shows a circui~ for ~he coo1ing of ~ room; and Figure 2 shows a circuit for the he~ing of a room.
.
~FL~ CI~EII F~-JII~ UI ~t ~1 EL: 5~ 'c '4S'7 C~ r. 1-. 1??-' U 9~1 P~
5 ~ 1 Dl:,~ll-IP 1~: ~
As shown in tl-e drawings, lhe sys~m includes a pre-compressnr 2 driven by an electric motor 1, and a compressor 3 which is connccted as a second stage and is driven by an expansion turbine 4. Further, an a~mospherjc-air hcat exchanger 5 with a re~enerator 6 is provided between thc compressor 3 and turb;nc 4, and a useful heat exchan~cr 7 for cooJing or heating the room 8 to be conditi~ned is provided. The indiv;dual elements are connected by pipelines containin~ suitable valves for switchin~ from cooling to heating. When coo]ing, the air compressed by lhe compressor 2 is fed to the compressor 3 ViR the l;ne 9, The compresslon causes the air to rise in temperature. The air then trAvels via the line 10 through the heat exchanger ~, which acts as a cooler, and the regenerator 6 as well as the line 11 and arrives in the turbine 4. The air is cooled to a lemperature below a~mosphcric tcmperalure by expansion.
The cooled air lravels via lines 12 and 13 into the useful heat exchanger 7 in which the air of the room 8 which is guided by ~he fan 18 alon6 thc ducts 15 and 16 is likewise cooled by hcat exchanU
The efficiency of the rcgcnera~or 6 is impro~ed in that the air hum;dity condensed in the u#ful heat exchanger 7 is fed to the regenerA~or 6 via the linc 32. 'rhe fresh air component required for the room 8 is sucked in from the atmosphere via the duct 20 by adjusting the flap 19 in an appropria~e manncr. The exhaus~ air, which corresponds in quantity to the flow of fresh air, arrives in the rCgcneratQr 6 via Ihe ducl 17 and improves the cooling effect already achicvcd in thc heat exchanger 5. The air from line 13 hcat¢d in the useful heat exchangcr travels ViA line 14 lo the compressor 2, so thA~ the circuit is closed.
. .
FFC~ HE~I F~SIUTH~ll Ft dt TEL: cl~ ?,_~ '4~, ItlS- lS. 1'33, r:~ll Fll Ft~l 2108a()1 For the l1eating proeess accordin~ to Figure 2, the valves 23 and 24 are reversed and the effec~iveness of the hea~ cxchangc,r 5 and re~enera~or ~ is eliminated so lhat the air heatcd by thc compressor arrives in the useful l~ exchanger 7 via thc bypass Une 31 and the line 1~ and then flows to the turbine ViR ~n~other bypass line ~2. The cxpanded air Iravels via line 12 and rcaches the atmosphele via line 26 by switching ~he valve 25. The air of the room 8 is heat~d in the usef~ll heat exchanger 7. The fresh air component enterin~ at the pipe 20 arrives in the intake pipe of ~he compressor 2 via lines 3û and 17 by switchin~ valve 27. The compressor 2 sucks in air from ~he atmosphcre at the pipe 29. The valve 28 is switched when no fresh air can be fcd to thG room 8 durillg the lleating process.
The invention is not limite~ by the emhodimcnls dcscribcd above which flre presented as examples only but cAn be modifle(i in various ways wilhin the scope of proteclion defincd by the appended patent claims.
~i~ure 1 shows a circui~ for ~he coo1ing of ~ room; and Figure 2 shows a circuit for the he~ing of a room.
.
~FL~ CI~EII F~-JII~ UI ~t ~1 EL: 5~ 'c '4S'7 C~ r. 1-. 1??-' U 9~1 P~
5 ~ 1 Dl:,~ll-IP 1~: ~
As shown in tl-e drawings, lhe sys~m includes a pre-compressnr 2 driven by an electric motor 1, and a compressor 3 which is connccted as a second stage and is driven by an expansion turbine 4. Further, an a~mospherjc-air hcat exchanger 5 with a re~enerator 6 is provided between thc compressor 3 and turb;nc 4, and a useful heat exchan~cr 7 for cooJing or heating the room 8 to be conditi~ned is provided. The indiv;dual elements are connected by pipelines containin~ suitable valves for switchin~ from cooling to heating. When coo]ing, the air compressed by lhe compressor 2 is fed to the compressor 3 ViR the l;ne 9, The compresslon causes the air to rise in temperature. The air then trAvels via the line 10 through the heat exchanger ~, which acts as a cooler, and the regenerator 6 as well as the line 11 and arrives in the turbine 4. The air is cooled to a lemperature below a~mosphcric tcmperalure by expansion.
The cooled air lravels via lines 12 and 13 into the useful heat exchanger 7 in which the air of the room 8 which is guided by ~he fan 18 alon6 thc ducts 15 and 16 is likewise cooled by hcat exchanU
The efficiency of the rcgcnera~or 6 is impro~ed in that the air hum;dity condensed in the u#ful heat exchanger 7 is fed to the regenerA~or 6 via the linc 32. 'rhe fresh air component required for the room 8 is sucked in from the atmosphere via the duct 20 by adjusting the flap 19 in an appropria~e manncr. The exhaus~ air, which corresponds in quantity to the flow of fresh air, arrives in the rCgcneratQr 6 via Ihe ducl 17 and improves the cooling effect already achicvcd in thc heat exchanger 5. The air from line 13 hcat¢d in the useful heat exchangcr travels ViA line 14 lo the compressor 2, so thA~ the circuit is closed.
. .
FFC~ HE~I F~SIUTH~ll Ft dt TEL: cl~ ?,_~ '4~, ItlS- lS. 1'33, r:~ll Fll Ft~l 2108a()1 For the l1eating proeess accordin~ to Figure 2, the valves 23 and 24 are reversed and the effec~iveness of the hea~ cxchangc,r 5 and re~enera~or ~ is eliminated so lhat the air heatcd by thc compressor arrives in the useful l~ exchanger 7 via thc bypass Une 31 and the line 1~ and then flows to the turbine ViR ~n~other bypass line ~2. The cxpanded air Iravels via line 12 and rcaches the atmosphele via line 26 by switching ~he valve 25. The air of the room 8 is heat~d in the usef~ll heat exchanger 7. The fresh air component enterin~ at the pipe 20 arrives in the intake pipe of ~he compressor 2 via lines 3û and 17 by switchin~ valve 27. The compressor 2 sucks in air from ~he atmosphcre at the pipe 29. The valve 28 is switched when no fresh air can be fcd to thG room 8 durillg the lleating process.
The invention is not limite~ by the emhodimcnls dcscribcd above which flre presented as examples only but cAn be modifle(i in various ways wilhin the scope of proteclion defincd by the appended patent claims.
Claims (5)
1. A combined cooling and heating process for conditioning air in a room, comprising the steps of:
heating the process air with a compressor;
passing the heated process air through a first heat exchanger and a regenerator to cool the process air;
cooling the room air by passing the process air from the first heat exchanger and the regenerator to a turbine for further cooling of the process air and then cooling the room air in a second heat exchanger by heat exchange with the process air cooled in the turbine; and heating the room air by selectively switching off the first heat exchanger and the regenerator so that the process air flows therethrough without being cooled, diverting the process air leaving the first heat exchanger and regenerator so that the process air bypasses the turbine and arrives directly to the second heal exchanger where the room air is heated by heat exchange with the process air, the cooled process air leaving the second heat exchanger being directed to the turbine and then released into the atmosphere.
heating the process air with a compressor;
passing the heated process air through a first heat exchanger and a regenerator to cool the process air;
cooling the room air by passing the process air from the first heat exchanger and the regenerator to a turbine for further cooling of the process air and then cooling the room air in a second heat exchanger by heat exchange with the process air cooled in the turbine; and heating the room air by selectively switching off the first heat exchanger and the regenerator so that the process air flows therethrough without being cooled, diverting the process air leaving the first heat exchanger and regenerator so that the process air bypasses the turbine and arrives directly to the second heal exchanger where the room air is heated by heat exchange with the process air, the cooled process air leaving the second heat exchanger being directed to the turbine and then released into the atmosphere.
2. A process according to claim 1, and further comprising the step of feeding condensation water of the room air which consists of recycled air and fresh air, the condensation water occurs during the heat exchanging in the second heat exchanger, to the regenerator together with the exhaust air from the room.
3. A device for cooling and heating a room, comprising:
a motor-driven pre-compressor:
a combined compressor-turbine unit with an intermediate heat exchanger formed by an atmospheric-air heat exchanger and a regenerator, the turbine of the compressor-turbine unit having an inlet side and the atmospheric-air heat exchanger having an outlet side;
a useful heat exchanger connected downstream of the combined compressor-turbine unit for cooling inlet air of the room to be conditioned, the useful heat exchanger having an inlet side and an outlet side;
connection lines interconnecting the pre-compressor, the combined compressor-turbine unit and the useful heat exchanger;
a bypass line having a first reversing valve and being arranged between the outlet side of the atmospheric-air heat exchanger and the inlet side of the useful heat exchanger; and another bypass line having a second reversing valve and being arranged between the outlet side of the useful heat exchanger and the inlet side of the turbine.
a motor-driven pre-compressor:
a combined compressor-turbine unit with an intermediate heat exchanger formed by an atmospheric-air heat exchanger and a regenerator, the turbine of the compressor-turbine unit having an inlet side and the atmospheric-air heat exchanger having an outlet side;
a useful heat exchanger connected downstream of the combined compressor-turbine unit for cooling inlet air of the room to be conditioned, the useful heat exchanger having an inlet side and an outlet side;
connection lines interconnecting the pre-compressor, the combined compressor-turbine unit and the useful heat exchanger;
a bypass line having a first reversing valve and being arranged between the outlet side of the atmospheric-air heat exchanger and the inlet side of the useful heat exchanger; and another bypass line having a second reversing valve and being arranged between the outlet side of the useful heat exchanger and the inlet side of the turbine.
4. A device as defined in claim 3, wherein the connecting lines include a first line connecting an outlet side of the turbine to the inlet side of the useful heal exchanger, the first reversing valve being arranged in the first line.
5. A device as defined in claim 4, wherein the connecting lines include a second line connecting an outlet side of the regenerator and the inlet side of the turbine, the second reversing valve being arranged in the second line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4235217A DE4235217C2 (en) | 1992-10-14 | 1992-10-14 | Process for heating or cooling a room |
| DEP4235217.7 | 1992-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2108501A1 true CA2108501A1 (en) | 1994-04-16 |
Family
ID=6470805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002108501A Abandoned CA2108501A1 (en) | 1992-10-14 | 1993-10-15 | Combined cooling and heating process and device for conditioning a room |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0592833B1 (en) |
| JP (1) | JP2635287B2 (en) |
| AT (1) | ATE162608T1 (en) |
| CA (1) | CA2108501A1 (en) |
| DE (2) | DE4235217C2 (en) |
| DK (1) | DK0592833T3 (en) |
| ES (1) | ES2114579T3 (en) |
| IL (1) | IL107008A (en) |
| RU (1) | RU2062964C1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9418668D0 (en) * | 1994-09-16 | 1994-11-02 | Normalair Garrett Ltd | Air conditioning systems |
| US6581792B1 (en) | 1998-12-07 | 2003-06-24 | Tjandra Limanjaya | Closure cap |
| JP2000179963A (en) * | 1998-12-16 | 2000-06-30 | Daikin Ind Ltd | Air conditioner |
| JP2000179962A (en) * | 1998-12-16 | 2000-06-30 | Daikin Ind Ltd | Air conditioner |
| JP2000257968A (en) | 1999-03-05 | 2000-09-22 | Daikin Ind Ltd | Air conditioner |
| JP4066553B2 (en) * | 1999-03-17 | 2008-03-26 | ダイキン工業株式会社 | Air conditioner |
| DE102007014002B4 (en) * | 2007-03-23 | 2012-09-06 | Airbus Operations Gmbh | Cooling system and freight container |
| US9786963B2 (en) * | 2013-05-09 | 2017-10-10 | Deere & Company | Vehicle heating/cooling system with consolidated heating/cooling core |
| CN110697054A (en) * | 2019-10-08 | 2020-01-17 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft cabin humidification device |
| CN112413760B (en) * | 2020-11-11 | 2021-10-26 | 太仓联科工业设计有限公司 | Workshop humiture monitoring automatic regulating equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2304151A (en) * | 1939-03-13 | 1942-12-08 | Robert B P Crawford | Air conditioning system |
| FR2349799A1 (en) * | 1976-04-28 | 1977-11-25 | Abg Semca | METHOD AND DEVICE FOR CONDITIONING THE AIR OF AN ENCLOSURE |
| US4295518A (en) * | 1979-06-01 | 1981-10-20 | United Technologies Corporation | Combined air cycle heat pump and refrigeration system |
| DE3837052A1 (en) * | 1988-10-31 | 1990-05-03 | Fraunhofer Ges Forschung | DEVICE FOR DELIVERING HEAT AT THE SAME AND ABOVE TEMPERATURE OF A RESERVOIR |
| JPH03129267A (en) * | 1989-10-10 | 1991-06-03 | Aisin Seiki Co Ltd | Air conditioner |
| GB2237373B (en) * | 1989-10-10 | 1993-12-08 | Aisin Seiki | Air cycle air conditioner for heating and cooling |
-
1992
- 1992-10-14 DE DE4235217A patent/DE4235217C2/en not_active Expired - Fee Related
-
1993
- 1993-09-14 IL IL10700893A patent/IL107008A/en not_active IP Right Cessation
- 1993-09-16 DK DK93114898T patent/DK0592833T3/en active
- 1993-09-16 ES ES93114898T patent/ES2114579T3/en not_active Expired - Lifetime
- 1993-09-16 AT AT93114898T patent/ATE162608T1/en not_active IP Right Cessation
- 1993-09-16 EP EP93114898A patent/EP0592833B1/en not_active Expired - Lifetime
- 1993-09-16 DE DE59308030T patent/DE59308030D1/en not_active Expired - Lifetime
- 1993-10-04 JP JP5248103A patent/JP2635287B2/en not_active Expired - Lifetime
- 1993-10-14 RU RU9393050550A patent/RU2062964C1/en active
- 1993-10-15 CA CA002108501A patent/CA2108501A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0592833B1 (en) | 1998-01-21 |
| DE59308030D1 (en) | 1998-02-26 |
| JPH06213521A (en) | 1994-08-02 |
| IL107008A0 (en) | 1993-12-28 |
| DE4235217A1 (en) | 1994-04-21 |
| DK0592833T3 (en) | 1998-09-14 |
| ATE162608T1 (en) | 1998-02-15 |
| RU2062964C1 (en) | 1996-06-27 |
| EP0592833A1 (en) | 1994-04-20 |
| ES2114579T3 (en) | 1998-06-01 |
| DE4235217C2 (en) | 1994-12-01 |
| JP2635287B2 (en) | 1997-07-30 |
| IL107008A (en) | 1996-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |