JPH0651756U - Cooling system - Google Patents
Cooling systemInfo
- Publication number
- JPH0651756U JPH0651756U JP9147492U JP9147492U JPH0651756U JP H0651756 U JPH0651756 U JP H0651756U JP 9147492 U JP9147492 U JP 9147492U JP 9147492 U JP9147492 U JP 9147492U JP H0651756 U JPH0651756 U JP H0651756U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- refrigerant
- low
- cooler
- cooling
- 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.)
- Pending
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
(57)【要約】
【目的】低圧設計のままでも、高い温度の被冷却流体を
冷却できる液ポンプ方式の冷却装置を提供する。
【構成】圧縮機１の吐出口が凝縮器２を介して低圧受液
器３に接続され、この低圧受液器３が冷媒液ポンプ４を
介して冷却器６の冷却コイル６ａに接続され、この冷却
コイル６ａの出口が低圧受液器３に接続され、この低圧
受液器３が蒸発圧力調節弁７を介して圧縮機１の吸入口
に接続されているとともに、冷却器６の熱交換コイル６
ｂに流される被冷却流体の冷却器出口温度を検出して蒸
発圧力調節弁７が調整されることで、被冷却流体が目的
の温度に制御される冷却装置において、低圧受液器３の
冷媒蒸発圧力を検出してこの検出出力に基づき、冷媒液
ポンプ４から冷却器６に送り出される冷媒送り量を調整
する冷媒送り量制御手段を備え、この制御手段をたとえ
ば蒸発圧力調節計９と三方弁５によって構成している。
(57) [Abstract] [PROBLEMS] To provide a liquid pump type cooling device capable of cooling a fluid to be cooled at a high temperature even with a low pressure design. A discharge port of a compressor 1 is connected to a low pressure liquid receiver 3 via a condenser 2, and this low pressure liquid receiver 3 is connected to a cooling coil 6a of a cooler 6 via a refrigerant liquid pump 4. The outlet of the cooling coil 6a is connected to the low-pressure liquid receiver 3, the low-pressure liquid receiver 3 is connected to the suction port of the compressor 1 via the evaporation pressure control valve 7, and the heat exchange of the cooler 6 is performed. Coil 6
In the cooling device in which the cooling target fluid is controlled to the target temperature by detecting the cooler outlet temperature of the cooling target fluid flowing in b and adjusting the evaporation pressure control valve 7, the refrigerant of the low pressure receiver 3 is controlled. Equipped with a refrigerant feed amount control means for detecting the evaporating pressure and adjusting the refrigerant feed amount sent from the refrigerant liquid pump 4 to the cooler 6 based on the detected output. This control means includes, for example, the evaporative pressure regulator 9 and the three-way valve. It is composed of 5.
Description
【０００１】[0001]
本考案は低圧受液器と冷媒液ポンプを有する冷却装置に関し、特に冷却器への 冷媒送り量を調整できるようにしたものに関する。 The present invention relates to a cooling device having a low-pressure liquid receiver and a refrigerant liquid pump, and more particularly, to a cooling device capable of adjusting a refrigerant feed amount to the cooler.
【０００２】[0002]
圧縮機から吐出される冷媒ガスを凝縮器で液化したあとに、冷媒液を低圧受液 器に溜め、この受液器の冷媒液を冷媒液ポンプによって冷却器に送り込むように した従来の冷却装置では、被冷却流体の冷却器出口温度を検出して、この検出出 力に基づき低圧受液器と圧縮機の吸入口間を結ぶ管路中の蒸発圧力調節弁を調整 することで、被冷却流体の温度を制御していた。 A conventional cooling system in which the refrigerant gas discharged from the compressor is liquefied by a condenser, then the refrigerant liquid is stored in a low-pressure receiver, and the refrigerant liquid in this receiver is sent to a cooler by a refrigerant liquid pump. Now, by detecting the cooler outlet temperature of the fluid to be cooled and adjusting the evaporation pressure control valve in the pipeline connecting the low pressure receiver and the suction inlet of the compressor based on this detected output, The temperature of the fluid was controlled.
【０００３】[0003]
このように従来の液ポンプ方式の冷却装置では、冷却器を通過したあとの被冷 却流体の出口温度を捕らえて、冷媒の蒸発温度を変えることにより、被冷却流体 の温度を制御しているため、高い温度の被冷却流体を冷却する場合は、冷媒の蒸 発温度も高くなり、低圧仕様の冷却機器（低圧受液器や低圧配管）でも高圧設計 が必要となるとともに、冷却しようとする被冷却流体の温度にも高温側で限界が あった。 As described above, in the conventional liquid pump type cooling device, the temperature of the cooled fluid is controlled by capturing the outlet temperature of the cooled fluid after passing through the cooler and changing the evaporation temperature of the refrigerant. Therefore, when cooling a high-temperature fluid to be cooled, the vaporization temperature of the refrigerant also rises, and cooling equipment with low-pressure specifications (low-pressure receivers and low-pressure pipes) also requires high-pressure design and attempts to cool it. The temperature of the fluid to be cooled was also limited on the high temperature side.
【０００４】 本考案は、このような従来の技術が有する課題を解決するために提案されたも のであり、低圧設計のままでも、高い温度の被冷却流体を冷却できるようにした 液ポンプ方式の冷却装置を提供することを目的とする。The present invention has been proposed in order to solve the problems of the conventional technique, and is of a liquid pump type that can cool a high temperature cooled fluid even with a low pressure design. An object is to provide a cooling device.
【０００５】[0005]
この目的を達成するために本考案は、圧縮機の吐出口が凝縮器を介して低圧受 液器に接続され、この低圧受液器が冷媒液ポンプを介して冷却器の冷却コイルに 接続され、この冷却コイルの出口が低圧受液器に接続され、この低圧受液器が蒸 発圧力調節弁を介して圧縮機の吸入口に接続されているとともに、冷却器の熱交 換コイルに流される被冷却流体の冷却器出口温度を検出して蒸発圧力調節弁が調 整されることで、被冷却流体が目的の温度に制御される冷却装置において、低圧 受液器の冷媒蒸発圧力を検出してこの検出出力に基づき、上記冷媒液ポンプから 冷却器に送り出される冷媒送り量を調整する冷媒送り量制御手段を備えた構成と してある。 In order to achieve this object, the present invention proposes that a discharge port of a compressor is connected to a low pressure receiver via a condenser, and this low pressure receiver is connected to a cooling coil of a cooler via a refrigerant liquid pump. The outlet of this cooling coil is connected to the low-pressure receiver, this low-pressure receiver is connected to the suction port of the compressor via the steam pressure control valve, and it is supplied to the heat exchange coil of the cooler. In the cooling device in which the cooling fluid is controlled to the target temperature by detecting the cooler outlet temperature of the cooling target fluid and adjusting the evaporation pressure control valve, the refrigerant evaporation pressure of the low pressure receiver is detected. Then, on the basis of this detection output, a refrigerant feed amount control means for adjusting the refrigerant feed amount sent from the refrigerant liquid pump to the cooler is provided.
【０００６】[0006]
冷却器に通される被冷却流体の温度が高くなるに従い、冷媒の蒸発温度が上り 、蒸発圧力も高まるので、低圧受液器内の圧力が高まる。 冷媒送り量制御手段によってこの低圧受液器内の圧力を検出して、蒸発圧力が 高いときに冷媒液ポンプの冷媒送り量を減らせば、冷媒の蒸発圧力の上昇を抑え られる。 As the temperature of the fluid to be cooled passed through the cooler rises, the evaporation temperature of the refrigerant rises and the evaporation pressure also rises, so the pressure in the low-pressure receiver increases. If the refrigerant feed amount control means detects the pressure in the low-pressure receiver and reduces the refrigerant feed amount of the refrigerant liquid pump when the evaporation pressure is high, the increase in the evaporation pressure of the refrigerant can be suppressed.
【０００７】[0007]
以下、本考案による液ポンプ方式の冷却装置の具体的な実施例を図面に基づき 詳細に説明する。 図１の系統図に、この冷却装置の一実施例を示す。 この図で、圧縮機１の吐出口は凝縮器２を介して低圧受液器３に接続されてい る。この低圧受液器３は冷媒液ポンプ４に接続され、この液ポンプ４の吐出口が 三方弁５の入口ポートに接続されている。三方弁５の第一の出口ポート５ａは冷 却器６の冷却コイル６ａの入口に接続され、第二の出口ポート５ｂが低圧受液器 ３に接続されている。冷却コイル６ａの出口は低圧受液器３に接続され、この低 圧受液器３が蒸発圧力調節弁７を介して圧縮機１の吸入口に接続されている。 Hereinafter, a specific embodiment of a liquid pump type cooling device according to the present invention will be described in detail with reference to the drawings. An example of this cooling device is shown in the system diagram of FIG. In this figure, the discharge port of the compressor 1 is connected to a low pressure liquid receiver 3 via a condenser 2. The low-pressure liquid receiver 3 is connected to the refrigerant liquid pump 4, and the discharge port of the liquid pump 4 is connected to the inlet port of the three-way valve 5. The first outlet port 5 a of the three-way valve 5 is connected to the inlet of the cooling coil 6 a of the cooler 6, and the second outlet port 5 b is connected to the low pressure liquid receiver 3. The outlet of the cooling coil 6a is connected to the low-pressure liquid receiver 3, and the low-pressure liquid receiver 3 is connected to the suction port of the compressor 1 via the evaporation pressure control valve 7.
【０００８】 冷却器６の熱交換コイル６ｂには、被冷却流体が流され、この熱交換コイル６ ｂを通過した被冷却流体の出口温度が被流体温度調節計８によって検出される。 この被流体温度調節計８の検出出力により、蒸発圧調節弁７が制御される。The fluid to be cooled is caused to flow through the heat exchange coil 6 b of the cooler 6, and the outlet temperature of the fluid to be cooled which has passed through the heat exchange coil 6 b is detected by the fluid temperature controller 8. The evaporation pressure control valve 7 is controlled by the detection output of the fluid temperature controller 8.
【０００９】 また、低圧受液器３には蒸発圧力調節計９が接続され、この蒸発圧力調節計９ による低圧受液器３の圧力検出信号に基づき三方弁５の各出口ポート５ａ、５ｂ の開度が制御される。Further, an evaporative pressure regulator 9 is connected to the low-pressure liquid receiver 3, and based on the pressure detection signal of the low-pressure liquid receiver 3 from this evaporative pressure regulator 9, the outlet ports 5a, 5b of the three-way valve 5 The opening is controlled.
【００１０】 具体的には、蒸発圧力調節計９の圧設定値が、低圧冷却機器の仕様である設計 圧力以下に設定されており、低圧受液器３の圧力がこの設定値よりも低いときは 、冷却器６側に冷媒が流れるように三方弁５の第一の出口ポート５ａを開ける。 一方、低圧受液器３の圧力がこの設定値よりも高いときは、第一の出口ポート５ ａを閉じる方向に制御し、第二の出口ポート５ｂを開いて、低圧受液器３側に冷 媒が流れるようにする。ここで、蒸発圧力調節計９と三方弁５は冷媒送り量制御 手段を構成している。Specifically, when the pressure set value of the evaporation pressure regulator 9 is set to be equal to or lower than the design pressure which is the specification of the low pressure cooling device, and the pressure of the low pressure receiver 3 is lower than this set value. Opens the first outlet port 5a of the three-way valve 5 so that the refrigerant flows to the cooler 6 side. On the other hand, when the pressure of the low pressure receiver 3 is higher than this set value, the first outlet port 5a is controlled to be closed and the second outlet port 5b is opened to the low pressure receiver 3 side. Allow the cooling medium to flow. Here, the evaporation pressure regulator 9 and the three-way valve 5 form a refrigerant feed amount control means.
【００１１】 このように構成される冷却装置では、被冷却流体の温度が低いときは冷却器６ 側に冷媒が流れるように三方弁５の出口ポート５ａを開ける。被冷却流体の温度 が高くなるに従い、冷媒の蒸発温度が上り、蒸発圧力も高くなってくる。このと き低圧受液器３で検出される冷媒蒸発圧力が、蒸発圧力調節計９の圧設定値を超 えた場合に、三方弁５の出口ポート５ａの開度を調整して冷却器６に送られる冷 媒液量を減らし、出口ポート５ｂを開いて余分な冷媒液を低圧受液器３に返すよ うにする。これにより、冷媒の蒸発圧力の上昇を抑えられる。In the cooling device thus configured, the outlet port 5a of the three-way valve 5 is opened so that the refrigerant flows to the cooler 6 side when the temperature of the fluid to be cooled is low. As the temperature of the fluid to be cooled rises, the evaporation temperature of the refrigerant rises and the evaporation pressure also rises. In this case, when the refrigerant evaporation pressure detected by the low pressure receiver 3 exceeds the pressure set value of the evaporation pressure regulator 9, the opening degree of the outlet port 5a of the three-way valve 5 is adjusted and the cooling device 6 is operated. The amount of the coolant liquid to be sent is reduced, and the outlet port 5b is opened so that the excess refrigerant liquid is returned to the low pressure liquid receiver 3. As a result, the increase in the evaporation pressure of the refrigerant can be suppressed.
【００１２】 通常液ポンプ方式では、冷却器６の冷媒出口でも冷媒液が残った状態であるが 、上記冷却装置では冷媒蒸発圧力に応じて冷却器６に送る冷媒量を制御している ので、冷却器６の出口では冷媒がガス状態となり、高い温度の被冷却流体を冷却 する場合でも有効に冷却を行なうことができる。 被冷却流体の温度は、吸入管路中の蒸発圧力調節弁７により制御されるので、 被冷却流体を目的の温度にコントロールできる。In the normal liquid pump system, the refrigerant liquid remains at the refrigerant outlet of the cooler 6, but the cooling device controls the amount of the refrigerant sent to the cooler 6 according to the refrigerant evaporation pressure. At the outlet of the cooler 6, the refrigerant is in a gas state, and even when cooling the high temperature fluid to be cooled, the cooling can be effectively performed. Since the temperature of the fluid to be cooled is controlled by the evaporation pressure control valve 7 in the suction pipe, the fluid to be cooled can be controlled to a target temperature.
【００１３】 図４（ａ）は被冷却流体が低温のときのモリエル線図を示し、図４（ｂ）は被 冷却流体が高温のときのモリエル線図を示す。これらのモリエル線図に示される ように、冷却器６の冷媒出口状態は被冷却流体が低温のときにａ点にあるが、高 温になるにつれてｂ点側に移動する。図５は、従来の冷凍装置におけるモリエル 線図を示しており、被冷却流体が高温のときも冷媒出口状態は変わらない。FIG. 4A shows a Mollier diagram when the fluid to be cooled is at a low temperature, and FIG. 4B shows a Mollier diagram when the fluid to be cooled is at a high temperature. As shown in these Mollier diagrams, the refrigerant outlet state of the cooler 6 is at the point a when the fluid to be cooled is at a low temperature, but moves to the point b side as the temperature becomes higher. FIG. 5 shows a Mollier diagram in a conventional refrigeration system, in which the refrigerant outlet state does not change even when the fluid to be cooled has a high temperature.
【００１４】 つぎに、図２に示す他の実施例を説明する。この実施例では、冷媒液ポンプ４ の吐出口と冷却器６および低圧受液器３とを結ぶ各管路中に二方弁１０、１１を それぞれ設け、これら二方弁１０、１１の開閉を蒸発圧力調節計９によって制御 するようにしたものであり、冷媒送り量制御手段を蒸発圧力調節計９と二方弁１ ０、１１によって構成している。Next, another embodiment shown in FIG. 2 will be described. In this embodiment, two-way valves 10 and 11 are provided in the respective pipes connecting the discharge port of the refrigerant liquid pump 4 to the cooler 6 and the low-pressure liquid receiver 3, and the two-way valves 10 and 11 are opened and closed. It is controlled by the evaporation pressure controller 9, and the refrigerant feed amount control means is composed of the evaporation pressure controller 9 and the two-way valves 10 and 11.
【００１５】 また、図３に示す他の実施例では、蒸発圧力調節計９からの制御信号を受ける インバータ１２によって冷媒液ポンプ４のモータ出力を可変することにより、液 ポンプ４による冷媒送り量を制御できるようにしたものであり、冷媒送り量制御 手段を蒸発圧力調節計９とインバータ１２によって構成している。In another embodiment shown in FIG. 3, the inverter 12 that receives a control signal from the evaporating pressure controller 9 varies the motor output of the refrigerant liquid pump 4 to change the amount of refrigerant sent by the liquid pump 4. The refrigerant feed amount control means is composed of the evaporation pressure controller 9 and the inverter 12.
【００１６】[0016]
以上説明したように本考案によれば、低圧受液器の圧力に応じて冷却器への冷 媒液の送り量を制御できるので、被冷却流体の温度が高い場合でも冷媒の蒸発圧 力が高まるのを防ぐことができ、低圧受液器や低圧配管などの低圧機器の設計圧 力を低く抑えることができる。 As described above, according to the present invention, the feed amount of the cooling medium liquid to the cooler can be controlled according to the pressure of the low-pressure receiver, so that the evaporation pressure of the refrigerant can be increased even when the temperature of the fluid to be cooled is high. It is possible to prevent the pressure from rising and to keep the design pressure of low-pressure equipment such as low-pressure receivers and low-pressure piping low.
【図１】本考案による冷却装置の一実施例を示す系統
図。FIG. 1 is a system diagram showing an embodiment of a cooling device according to the present invention.
【図２】他の実施例の冷凍装置を示す系統図。FIG. 2 is a system diagram showing a refrigeration system of another embodiment.
【図３】さらに他の実施例の冷却装置を示す系統図。FIG. 3 is a system diagram showing a cooling device of still another embodiment.
【図４】本考案による冷却装置のモリエル線図。FIG. 4 is a Mollier diagram of the cooling device according to the present invention.
【図５】従来の冷却装置のモリエル線図。FIG. 5 is a Mollier diagram of a conventional cooling device.
１ 圧縮機 ２ 凝縮器 ３ 低圧受液器 ４ 冷媒液ポンプ ５ 三方弁 ６ 冷却器 ７ 蒸発圧力調整弁 ８ 被流体温度調節計 ９ 蒸発圧力調節計 １０、１１ 二方弁 １２ インバータ 1 Compressor 2 Condenser 3 Low-pressure liquid receiver 4 Refrigerant liquid pump 5 Three-way valve 6 Cooler 7 Evaporation pressure control valve 8 Fluid temperature controller 9 Evaporation pressure controller 10, 11 Two-way valve 12 Inverter
Claims (1)
器に接続され、この低圧受液器が冷媒液ポンプを介して
冷却器の冷却コイルに接続され、この冷却コイルの出口
が低圧受液器に接続され、この低圧受液器が蒸発圧力調
節弁を介して圧縮機の吸入口に接続されているととも
に、冷却器の熱交換コイルに流される被冷却流体の冷却
器出口温度を検出して上記蒸発圧力調節弁が調整される
ことで、被冷却流体が目的の温度に制御される冷却装置
において、低圧受液器の冷媒蒸発圧力を検出してこの検
出出力に基づき、上記冷媒液ポンプから冷却器に送り出
される冷媒送り量を調整する冷媒送り量制御手段を備え
ることを特徴とする冷却装置。1. A discharge port of a compressor is connected to a low pressure receiver via a condenser, and this low pressure receiver is connected to a cooling coil of a cooler via a refrigerant liquid pump, and the outlet of this cooling coil is connected. Is connected to the low-pressure receiver, this low-pressure receiver is connected to the suction port of the compressor via the evaporation pressure control valve, and the cooler outlet of the fluid to be cooled which is made to flow through the heat exchange coil of the cooler By detecting the temperature and adjusting the evaporation pressure control valve, in the cooling device in which the fluid to be cooled is controlled to the target temperature, the refrigerant evaporation pressure of the low-pressure receiver is detected and based on this detection output, A cooling device comprising: a refrigerant feed amount control means for adjusting a refrigerant feed amount sent from the refrigerant liquid pump to a cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9147492U JPH0651756U (en) | 1992-12-16 | 1992-12-16 | Cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9147492U JPH0651756U (en) | 1992-12-16 | 1992-12-16 | Cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0651756U true JPH0651756U (en) | 1994-07-15 |
Family
ID=14027398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9147492U Pending JPH0651756U (en) | 1992-12-16 | 1992-12-16 | Cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651756U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002106986A (en) * | 2000-09-29 | 2002-04-10 | Mitsubishi Electric Corp | Air conditioner and control method therefor |
| JP2007147267A (en) * | 2005-10-28 | 2007-06-14 | Toyo Eng Works Ltd | Natural refrigerant cooling system |
| JP2007247987A (en) * | 2006-03-16 | 2007-09-27 | Kansai Electric Power Co Inc:The | Compression type refrigeration device |
| JP2014526667A (en) * | 2011-09-09 | 2014-10-06 | ヨーロピアン オーガナイゼーション フォー ニュークリア リサーチ | Mini cooling system and method for accurate temperature control |
| KR101658000B1 (en) * | 2015-03-11 | 2016-09-20 | 김봉석 | Cooling system using Liquid Pressure Amplification pump |
| EP3553422A1 (en) * | 2018-04-11 | 2019-10-16 | Rolls-Royce North American Technologies, Inc. | Mechanically pumped system for direct control of two-phase isothermal evaporation |
| US10921042B2 (en) | 2019-04-10 | 2021-02-16 | Rolls-Royce North American Technologies Inc. | Method for reducing condenser size and power on a heat rejection system |
| US11022360B2 (en) | 2019-04-10 | 2021-06-01 | Rolls-Royce North American Technologies Inc. | Method for reducing condenser size and power on a heat rejection system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62252870A (en) * | 1986-04-23 | 1987-11-04 | 株式会社 前川製作所 | Method of controlling flow rate of refrigerant in refrigeration or heat pump cycle |
-
1992
- 1992-12-16 JP JP9147492U patent/JPH0651756U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62252870A (en) * | 1986-04-23 | 1987-11-04 | 株式会社 前川製作所 | Method of controlling flow rate of refrigerant in refrigeration or heat pump cycle |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002106986A (en) * | 2000-09-29 | 2002-04-10 | Mitsubishi Electric Corp | Air conditioner and control method therefor |
| JP2007147267A (en) * | 2005-10-28 | 2007-06-14 | Toyo Eng Works Ltd | Natural refrigerant cooling system |
| JP2007247987A (en) * | 2006-03-16 | 2007-09-27 | Kansai Electric Power Co Inc:The | Compression type refrigeration device |
| JP4584167B2 (en) * | 2006-03-16 | 2010-11-17 | 関西電力株式会社 | Compression refrigeration system |
| JP2014526667A (en) * | 2011-09-09 | 2014-10-06 | ヨーロピアン オーガナイゼーション フォー ニュークリア リサーチ | Mini cooling system and method for accurate temperature control |
| KR101658000B1 (en) * | 2015-03-11 | 2016-09-20 | 김봉석 | Cooling system using Liquid Pressure Amplification pump |
| EP3553422A1 (en) * | 2018-04-11 | 2019-10-16 | Rolls-Royce North American Technologies, Inc. | Mechanically pumped system for direct control of two-phase isothermal evaporation |
| US10906150B2 (en) | 2018-04-11 | 2021-02-02 | Rolls-Royce North American Technologies Inc | Mechanically pumped system for direct control of two-phase isothermal evaporation |
| US10921042B2 (en) | 2019-04-10 | 2021-02-16 | Rolls-Royce North American Technologies Inc. | Method for reducing condenser size and power on a heat rejection system |
| US11022360B2 (en) | 2019-04-10 | 2021-06-01 | Rolls-Royce North American Technologies Inc. | Method for reducing condenser size and power on a heat rejection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11300341B2 (en) | Method of control for economizer of transport refrigeration units | |
| JPH11193967A (en) | Refrigerating cycle | |
| EP3589900A1 (en) | A method for controlling ejector capacity in a vapour compression system | |
| JP2001235239A (en) | Supercritical vapor compressing cycle system | |
| KR20210096522A (en) | Air conditioning apparatus | |
| KR20210100461A (en) | Air conditioning apparatus | |
| JPH0651756U (en) | Cooling system | |
| JP2002228282A (en) | Refrigerating device | |
| JP2003004316A (en) | Method for controlling refrigeration unit | |
| CN111623545B (en) | Refrigerating system and control method thereof | |
| JP7496817B2 (en) | Cooling System | |
| JP4898025B2 (en) | Multi-type gas heat pump type air conditioner | |
| JP2007032857A (en) | Refrigerating device | |
| JP2000304373A (en) | Engine heat pump | |
| JPH10185342A (en) | Heat pump type air conditioner | |
| CN211011723U (en) | Air conditioner and cold liquid integrated system | |
| JP4265008B2 (en) | Aircraft cooling system | |
| JPH0828975A (en) | Turbo refrigerator | |
| US11662125B2 (en) | Combined heat exchanger, heat exchanging system and the optimization method thereof | |
| CN109539614A (en) | A kind of air-conditioning system and its energy adjustment method | |
| CN118009594A (en) | Control method of refrigerating system and refrigerating system | |
| JP3326322B2 (en) | Air conditioner and air conditioner system equipped with this air conditioner | |
| JP3134388B2 (en) | Air conditioner | |
| JPS6028935Y2 (en) | Heat pump air conditioning system | |
| JPH07294026A (en) | Refrigerator |