DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sorption heat pump and control method

Abstract

A method operates an absorption heat pump system, specifically the flow of hydronic cooling fluid through the condenser during system start-ups, or when the cooling fluid temperature is low. To minimize the time for an absorption heat pump to reach full cooling or heating capacity, it is desirable for the high side pressure to increase as fast as possible, and the low side pressure to decrease as fast as possible. Since the high side pressure is a function of the temperature of the refrigerant exiting the condenser, if the condenser cooling fluid temperature is low, the corresponding high side pressure will be low, which may not permit adequate working fluid flow rates from the high pressure side of the system to the low pressure side.

Inventors:
;
Issue Date:
Research Org.:
Stone Mountain Technologies, Inc., Unicoi, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1805426
Patent Number(s):
10900700
Application Number:
16/300,292
Assignee:
Stone Mountain Technologies, Inc. (Unicoi, TN)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
DOE Contract Number:  
EE0006116
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/11/2017
Country of Publication:
United States
Language:
English

Citation Formats

Garrabrant, Michael A., and Stout, Roger E. Sorption heat pump and control method. United States: N. p., 2021. Web.
Garrabrant, Michael A., & Stout, Roger E. Sorption heat pump and control method. United States.
Garrabrant, Michael A., and Stout, Roger E. Tue . "Sorption heat pump and control method". United States. https://www.osti.gov/servlets/purl/1805426.
@article{osti_1805426,
title = {Sorption heat pump and control method},
author = {Garrabrant, Michael A. and Stout, Roger E.},
abstractNote = {A method operates an absorption heat pump system, specifically the flow of hydronic cooling fluid through the condenser during system start-ups, or when the cooling fluid temperature is low. To minimize the time for an absorption heat pump to reach full cooling or heating capacity, it is desirable for the high side pressure to increase as fast as possible, and the low side pressure to decrease as fast as possible. Since the high side pressure is a function of the temperature of the refrigerant exiting the condenser, if the condenser cooling fluid temperature is low, the corresponding high side pressure will be low, which may not permit adequate working fluid flow rates from the high pressure side of the system to the low pressure side.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 26 00:00:00 EST 2021},
month = {Tue Jan 26 00:00:00 EST 2021}
}

Works referenced in this record:

Heat pump
patent, November 1996


Simplified, low cost absorption heat pump
patent, October 1993


Integrated aqua-ammonia chiller/heater
patent, April 2004


Control of dual-heated absorption heat-transfer machines
patent, March 2008


Adsorption Cooling System And Adsorption Cooling Method For An Aircraft
patent-application, January 2012


Absorption refrigeration and heat pump system
patent, May 1987