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1.发明申请公开(公告)号：US20190203999A1
公开(公告)日：2019-07-04
申请号：US16225865
申请日：2018-12-19
Applicant: Johnson Controls Technology Company
Inventor： Satheesh Kulankara
CPC classification number: F25B49/027 , F25B41/04 , F25B41/062 , F25B45/00 , F25B49/02 , F25B2339/04 , F25B2500/18 , F25B2500/23 , F25B2500/24 , F25B2600/2513 , F25B2700/04 , F25B2700/1931 , F25B2700/195 , F25B2700/21152 , F25B2700/21163 , F25B2700/21175
Abstract: A heating, ventilation, and air conditioning (HVAC) system includes an expansion device disposed between a condenser and an evaporator of a vapor compression system and a control panel communicatively coupled to the expansion device. The control panel is configured to: determine a liquid refrigerant level set point of the condenser based on parameters of the vapor compression system, provide a first control signal to increase an opening of the expansion device in response determining that the current liquid refrigerant level in the condenser is greater than a determined liquid refrigerant level set point of the condenser, and provide a second control signal to decrease the opening of the expansion device in response to determining that the current liquid refrigerant level in the condenser is less than the determined liquid refrigerant level set point of the condenser.
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公开(公告)号：US10203140B2
公开(公告)日：2019-02-12
申请号：US15195860
申请日：2016-06-28
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Israel Federman , Satheesh Kulankara , Andrew John Graybill
Abstract: A refrigeration system is provided, such as for use with chillers. The system uses a tube-side condenser, such as a microchannel condenser, along with a shell-side evaporator such as a falling film evaporator. A flash tank economizer is disposed between the condenser and the evaporator, and an inlet valve to the flash tank is controlled based upon subcooling of condensate from the condenser. The vapor exiting the flash tank may be fed via an economizer line to a system compressor. Liquid phase refrigerant combined with some gas phase refrigerant exits the flash tank and is directed through an orifice before entering the evaporator.
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公开(公告)号：US11378314B2
公开(公告)日：2022-07-05
申请号：US16554429
申请日：2019-08-28
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Satheesh Kulankara
Abstract: A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a compressor configured to circulate a refrigerant through a refrigerant loop of the HVAC&R system, a heat recovery heat exchanger configured to receive the refrigerant from the compressor and to place the refrigerant in a heat exchange relationship with a process fluid, and a condenser configured to receive the refrigerant from the heat recovery heat exchanger, the compressor, or both, in which the condenser is configured to cool the refrigerant. The HVAC&R system further includes a fan configured to direct air across the condenser and an evaporator configured to place the refrigerant in a heat exchange relationship with a cooling fluid. A speed of the fan is configured to be adjusted based on an operating parameter of the HVAC&R system.
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公开(公告)号：US20190383538A1
公开(公告)日：2019-12-19
申请号：US16554429
申请日：2019-08-28
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Satheesh Kulankara
Abstract: A heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a compressor configured to circulate a refrigerant through a refrigerant loop of the HVAC&R system, a heat recovery heat exchanger configured to receive the refrigerant from the compressor and to place the refrigerant in a heat exchange relationship with a process fluid, and a condenser configured to receive the refrigerant from the heat recovery heat exchanger, the compressor, or both, in which the condenser is configured to cool the refrigerant. The HVAC&R system further includes a fan configured to direct air across the condenser and an evaporator configured to place the refrigerant in a heat exchange relationship with a cooling fluid. A speed of the fan is configured to be adjusted based on an operating parameter of the HVAC&R system.
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公开(公告)号：US10401068B2
公开(公告)日：2019-09-03
申请号：US14655583
申请日：2014-01-14
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Satheesh Kulankara
Abstract: Air cooled chillers have auxiliary heat recovery systems that include a heat recovery heat exchanger for transferring heat from a compressed refrigerant to a process fluid. According to certain embodiments, the air cooled chillers also includes a compressor, a condenser, an expansion device, and a controller to govern operations of the expansion device, a fan in the condenser, and other components of the chiller system. The controller may receive signals from temperature and pressure sensors located throughout the chiller system in order to determine a heat recovery load of the heat recovery heat exchanger. The controller may govern operations of the condenser fan and the expansion device according to a low heat recovery mode, an intermediate heat recovery mode, or a full heat recovery mode. In full heat recovery mode, the controller operates the expansion device based on subcooling detected in the heat recovery heat exchanger.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10955179B2
公开(公告)日：2021-03-23
申请号：US16225865
申请日：2018-12-19
Applicant: Johnson Controls Technology Company
Inventor： Satheesh Kulankara
Abstract: A heating, ventilation, and air conditioning (HVAC) system includes an expansion device disposed between a condenser and an evaporator of a vapor compression system and a control panel communicatively coupled to the expansion device. The control panel is configured to: determine a liquid refrigerant level set point of the condenser based on parameters of the vapor compression system, provide a first control signal to increase an opening of the expansion device in response determining that the current liquid refrigerant level in the condenser is greater than a determined liquid refrigerant level set point of the condenser, and provide a second control signal to decrease the opening of the expansion device in response to determining that the current liquid refrigerant level in the condenser is less than the determined liquid refrigerant level set point of the condenser.
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公开(公告)号：US10371428B2
公开(公告)日：2019-08-06
申请号：US15676646
申请日：2017-08-14
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Andrew M. Welch , Satheesh Kulankara
Abstract: Embodiments of the present disclosure are directed toward systems and method for cooling a refrigerant flow of a refrigerant circuit with a cool water flow from a cool water storage to generate a warm water flow and to cool the refrigerant flow by a subcooling temperature difference, flowing the warm water flow to the cool water storage, and thermally isolating the warm water flow from the cool water flow in the cool water storage.
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公开(公告)号：US09754574B2
公开(公告)日：2017-09-05
申请号：US14357534
申请日：2012-11-29
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Atul Singh , Satheesh Kulankara , Andrew J. Graybill , Lewis M. Bass
CPC classification number: G10K11/161 , F24F1/12 , F25B49/025 , F25B2500/12 , F25B2600/02 , F25B2600/111 , G06F17/5009 , Y02B30/743
Abstract: A method is provided including receiving a first input indicative of a desired design capacity of a refrigeration system, and receiving a second input indicative of a desired maximum acoustical noise of the refrigeration system. The method also includes iteratively selecting a candidate compressor system from a set of compressor systems, and iteratively selecting a candidate condenser system from a set of condenser systems. In addition, the method includes simulating operation of the refrigeration system based on the candidate compressor system and the candidate condenser system until a suitable refrigeration system is established having a computed design capacity greater than or equal to the desired design capacity, and a computed maximum acoustical noise less than or equal to the desired maximum acoustical noise. The method further includes providing an output indicative of the candidate compressor system and the candidate condenser system of the suitable refrigeration system.
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公开(公告)号：US20150345846A1
公开(公告)日：2015-12-03
申请号：US14655583
申请日：2014-01-14
Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
Inventor： William L. Kopko , Satheesh Kulankara
Abstract: Air cooled chillers have auxiliary heat recovery systems that include a heat recovery heat exchanger for transferring heat from a compressed refrigerant to a process fluid. According to certain embodiments, the air cooled chillers also includes a compressor, a condenser, an expansion device, and a controller to govern operations of the expansion device, a fan in the condenser, and other components of the chiller system. The controller may receive signals from temperature and pressure sensors located throughout the chiller system in order to determine a heat recovery load of the heat recovery heat exchanger. The controller may govern operations of the condenser fan and the expansion device according to a low heat recovery mode, an intermediate heat recovery mode, or a full heat recovery mode. In full heat recovery mode, the controller operates the expansion device based on subcooling detected in the heat recovery heat exchanger.
Abstract translation: 风冷式制冷机具有辅助热回收系统，其包括用于将热量从压缩制冷剂传递到工艺流体的热回收热交换器。 根据某些实施例，空气冷却的冷却器还包括压缩机，冷凝器，膨胀装置和控制器，用于控制膨胀装置的操作，冷凝器中的风扇和冷却器系统的其它部件。 控制器可以从位于整个冷却器系统中的温度和压力传感器接收信号，以便确定热回收热交换器的热回收负载。 控制器可以根据低热回收模式，中间热回收模式或全热回收模式来管理冷凝器风扇和膨胀装置的操作。 在全热回收模式下，控制器基于在热回收热交换器中检测到的过冷而操作膨胀装置。
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公开(公告)号：US20140260376A1
公开(公告)日：2014-09-18
申请号：US14203251
申请日：2014-03-10
Applicant: Johnson Controls Technology Company
Inventor： William L. Kopko , Andrew M. Welch , Satheesh Kulankara
CPC classification number: F25D3/005 , F25B25/005 , F25B40/02 , F25B41/00 , F25B2600/13 , F25B2700/21161 , F25B2700/21162 , F25B2700/21163 , F28D20/0039 , F28D2020/0095 , F28D2021/0068 , Y02B30/745 , Y02E60/142
Abstract: Embodiments of the present disclosure are directed toward systems and method for cooling a refrigerant flow of a refrigerant circuit with a cool water flow from a cool water storage to generate a warm water flow and to cool the refrigerant flow by a subcooling temperature difference, flowing the warm water flow to the cool water storage, and thermally isolating the warm water flow from the cool water flow in the cool water storage.
Abstract translation: 本公开的实施例涉及用于利用来自冷水存储器的冷水流冷却制冷剂回路的制冷剂流的系统和方法，以产生温水流并且通过过冷却温度差冷却制冷剂流 温水流入冷水储存器，并将冷水流与冷水储存器中的冷水流热隔离。
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