US 10,539,348 B2Granted

Power and refrigeration cascade system

AssigneeSyracuse University

InventorH. Ezzat Khalifa

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Abstract

A combined power and refrigeration cascade system that includes an electric power system (PS) that produces both electric power and medium-to-high-grade waste heat. To reduce energy consumption by a load having a computer chip, the load is powered by a power source and thermally coupled to a refrigeration system, which is also powered by the power source. The refrigeration system is thermally coupled to an absorption system, which is configured to remove heat rejected by the refrigeration system. The refrigeration system and the absorption system are in a cascaded arrangement such that the refrigeration system condensing temperature is less than twenty degrees Celsius. In particular, absorption chillers of the absorption system and vapor-compressors of the refrigeration system are in a cascading arrangement that produces subzero cooling.

Claims14

Dependent claims

A method of reducing energy consumption by a load powered by a power source, comprising:

powering the load by the power source wherein the power source generates only direct current (DC) power without conversion to or from alternating current (AC) power;
thermally coupling the load to a refrigeration system, wherein at least a portion of the load comprises at least one computer chip;
powering the refrigeration system, wherein at least a portion of power is from the power source;
thermally coupling the refrigeration system to an absorption system, wherein the absorption system has an absorption chiller which is in a cascaded arrangement with vapor-compressors of the refrigeration system, the absorption system configured to remove heat rejected by the refrigeration system, wherein the thermal coupling between the refrigeration system and the absorption system enables the absorption system having an evaporator temperature of less than zero degrees Celsius.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/939,384Filed 11 Jul 2013 · division
Priority: 7 Aug 2007
Published: US 2013/0312435 A128 Nov 2013
Granted: 21 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F25B 29/006
Combined heating and refrigeration systems, e.g. operating alternately or simultaneously: of the sorption type system
F25B 27/00
Machines, plants or systems, using particular sources of energy
H05K 7/20827
Liquid cooling with phase change: within rooms for removing heat from cabinets, e.g. air conditioning devices
H05K 7/20836
For server racks or cabinets; for data centers, e.g. 19-inch computer racks: thermal management, e.g. server temperature control

Family

Application60/954,346Us provisional application · filed 7 Aug 2007
Application12/187,863Parent of this division · filed 7 Aug 2008
US 2013/0312435 A1Pre-grant publication · published 28 Nov 2013
US 2009/0038324 A1Published application
US 10,539,348 B2This patent

From the US filing history. Foreign family members aren’t listed.