Schneider Electric It Corporation

American Power Conversion Corporation

Ozan Tutunoglu

John H Bean, Jr

Roy L Grantham

Daniel J Rohr

Mohammed Adil

David James Lingrey

John Bean

A water collection system is provided for an indirect evaporative cooler. The water collection system includes a housing having an open bottom, a front wall, a back wall, and two end walls, which together define an interior region of the housing. The water collection system further includes a plurality of tube assemblies each extending through one of the front wall and the back wall of the housing and disposed within the interior region of the housing. The water collection system further includes a plurality of panel assemblies disposed within the interior region of the housing above the plurality of tube assemblies. Each panel assembly is associated with a respective tube assembly to channel fluid to the tube assembly. A method of collecting and distributing water within an indirect evaporative cooler configured to spray water on a heat exchanger is further disclosed.

Water collection system for indirect evaporative cooler

A method for constructing a module of a modular cooling unit includes acquiring a plurality of tubes, each tube having a first end and a second end, and overmolding a first header onto the first ends of the plurality of tubes to form a watertight connection between the first header and the first ends of the plurality of tubes, the first header having a plurality of parallel first slots, each slot of the parallel first slots having an extended surface configured to receive and retain the first end of the tube.

Indirect evaporator cooler heat exchanger manufacturing method

Methods of controlling a cooling unit and embodiments of a cooling unit are disclosed. A method of improving efficiency of the cooling unit includes detecting a degree of opening of a hot gas bypass valve configured to divert a portion of coolant from a compressor to a heat exchanger of the cooling unit, and adjusting a condenser discharge pressure based on the detected degree of opening. Aspects may increase cooling efficiency at partial cooling requirements. Fluctuations in refrigerant pressure at low cooling capacities and condenser medium inlet temperature may be avoided. Minimum condenser water inlet temperature for a water-cooled cooling unit may also be reduced.

Method and apparatus for cooling

A method of calculating net sensible cooling capacity of a cooling unit includes measuring a discharge pressure from of fluid from a compressor and a suction pressure from an evaporator, calculating a condensing temperature of fluid flowing from the compressor and an evaporating temperature of fluid flowing from the evaporator, calculating a mass flow rate of fluid flowing from the compressor, calculating enthalpy of fluid flowing from the compressor, of fluid flowing from the thermal expansion valve, and of fluid flowing from the evaporator, calculating a mass flow rate of fluid flowing through the hot gas bypass valve, and calculating net sensible cooling capacity. Embodiments of cooling units and other methods are further disclosed.

Method of operating a cooling system having one or more cooling units

An air pressure differential sensing system includes a conduit defining an air passage through which air flows upon application of an air pressure differential across different regions of the air passage, a flap pivotally connected to the conduit, and a sensing device mounted proximate to the air passage and separate from the flap. The flap is configured to move about a pivotal axis in response to the air flowing through the air passage. The sensing device is configured to sense an angular position of the flap about the pivotal axis, the angular position of the flap being a function of the air pressure differential.

System and method for air containment zone pressure differential detection

A method of calculating sensible cooling capacity of a cooling unit includes obtaining compressor capacity, subtracting compressor heat loss from the compressor capacity, subtracting latent cooling capacity from compressor capacity, and subtracting fan power loss from the compressor capacity. Methods of controlling a cooling unit and embodiments of a cooling unit are further disclosed.

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O'Fallon, MO, United States of America

Ozan Tutunoglu