Cooling systems and methods using two circuits with water flow in series and counter flow arrangement

    公开(公告)号:US11306959B2

    公开(公告)日:2022-04-19

    申请号:US14534957

    申请日:2014-11-06

    Abstract: A cooling system is provided including a first evaporator coil in thermal communication with an air intake flow to a heat load, a first liquid refrigerant distribution unit in fluid communication with the first evaporator coil to form a first fluid circuit, a second evaporator coil disposed in series with the first evaporator coil in the air intake flow and in the thermal communication with the air intake flow to the heat load, a second liquid refrigerant distribution unit in fluid communication with the second evaporator coil to form a second fluid circuit, a water loop in thermal communication with the first fluid circuit and second fluid circuit, and a chiller loop in thermal communication with the water loop.

    Systems and methods for cooling electrical equipment

    公开(公告)号:US10739042B2

    公开(公告)日:2020-08-11

    申请号:US15479588

    申请日:2017-04-05

    Abstract: The cooling systems of the present disclosure include a first refrigerant circuit in thermal communication with a heat load and in fluid communication with a main condenser, a free cooling circuit in fluid communication with the main condenser and a free-cooled water source, a chilled water circuit in fluid communication with the main condenser and an evaporator, and a second refrigerant circuit in fluid communication with the evaporator and a secondary condenser. The free cooling circuit is in thermal communication with the first refrigerant circuit via the main condenser, the chilled water circuit is in thermal communication with the first refrigerant circuit via the main condenser, and the second refrigeration circuit is in thermal communication with the chilled water circuit and the free cooling circuit. The second refrigeration circuit cools a fluid flowing in the chilled water circuit. Methods of operating a cooling system are also disclosed.

    MODULAR AIR COOLING AND DISTRIBUTION SYSTEMS AND METHODS

    公开(公告)号:US20200229323A1

    公开(公告)日:2020-07-16

    申请号:US16741493

    申请日:2020-01-13

    Abstract: Modular air cooling and distribution systems include a fan and heat exchanger cooling assembly and a controller which controls the fan speed based on temperature and velocity measurements. The cooling assembly includes a fluid-to-air heat exchanger and a variable speed fan. The fluid in the fluid-to-air heat exchanger may be propylene glycol or water. The heat exchanger minimizes pressure drop and maximizes heat transfer. The quantity of cooling assemblies is selected to match the indoor cooling requirements. The cooling assemblies are easily assembled together, stacked vertically, and/or connected horizontally, to match the cooling load. If additional cooling capacity is needed in the future, more cooling assemblies can easily be added, and the cooling assemblies may be expanded vertically and/or horizontally. The speed of the fans of the fan and heat exchanger assemblies are controlled based on fluid temperature and fluid velocity measurements, which may be obtained by an anemometer.

    Systems and methods for cooling electrical equipment

    公开(公告)号:US12146691B2

    公开(公告)日:2024-11-19

    申请号:US18097055

    申请日:2023-01-13

    Abstract: The cooling systems of the present disclosure include a first refrigerant circuit in thermal communication with a heat load and in fluid communication with a main condenser, a free cooling circuit in fluid communication with the main condenser and a free-cooled water source, a chilled water circuit in fluid communication with the main condenser and an evaporator, and a second refrigerant circuit in fluid communication with the evaporator and a secondary condenser. The free cooling circuit is in thermal communication with the first refrigerant circuit via the main condenser, the chilled water circuit is in thermal communication with the first refrigerant circuit via the main condenser, and the second refrigeration circuit is in thermal communication with the chilled water circuit and the free cooling circuit. The second refrigeration circuit cools a fluid flowing in the chilled water circuit. Methods of operating a cooling system are also disclosed.

    SYSTEMS AND METHODS FOR COOLING ELECTRICAL EQUIPMENT

    公开(公告)号:US20230221046A1

    公开(公告)日:2023-07-13

    申请号:US18097055

    申请日:2023-01-13

    Abstract: The cooling systems of the present disclosure include a first refrigerant circuit in thermal communication with a heat load and in fluid communication with a main condenser, a free cooling circuit in fluid communication with the main condenser and a free-cooled water source, a chilled water circuit in fluid communication with the main condenser and an evaporator, and a second refrigerant circuit in fluid communication with the evaporator and a secondary condenser. The free cooling circuit is in thermal communication with the first refrigerant circuit via the main condenser, the chilled water circuit is in thermal communication with the first refrigerant circuit via the main condenser, and the second refrigeration circuit is in thermal communication with the chilled water circuit and the free cooling circuit. The second refrigeration circuit cools a fluid flowing in the chilled water circuit. Methods of operating a cooling system are also disclosed.

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