Absorption heat pump system

Title: Absorption heat pump system

Full Record
Other Related Research

Abstract

An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.

Inventors:

Grossman, Gershon ^[1]; Perez-Blanco, Horacio ^[2]

Oak Ridge, TN
Knoxville, TN

Issue Date:: 1984-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 865075

Patent Number(s):: 4458500

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS

Show more

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
Y02B30/62 - Absorption based systems

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
F25B15/06 - the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide {

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Y02A30/27 - Relating to heating, ventilation or air conditioning [HVAC] technologies

Show less

DOE Contract Number:: W-7405-ENG-26

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: absorption; heat; pump; improvement; cycle; obtained; adding; adiabatic; desorption; steps; absorber; desorber; processes; obtain; temperature; removed; lowest; added; allowing; efficient; utilization; thermodynamic; availability; supply; stream; improved; operate; larger; difference; fluid; concentrations; circulation; losses; exchange; conventional; heat pump; heat exchange; absorption heat; efficient heat; efficient utilization; /62/165/

Citation Formats


                    Grossman, Gershon, and Perez-Blanco, Horacio. Absorption heat pump system.  United States: N. p., 1984. 
        Web.

Copy to clipboard


                    Grossman, Gershon, & Perez-Blanco, Horacio. Absorption heat pump system.  United States.

Copy to clipboard


                    Grossman, Gershon, and Perez-Blanco, Horacio. Sun .  
        "Absorption heat pump system".  United States.  https://www.osti.gov/servlets/purl/865075.

Copy to clipboard


                    
@article{osti_865075,

  title        = {Absorption heat pump system},

  author       = {Grossman, Gershon and Perez-Blanco, Horacio},

  abstractNote = {An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1984},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Absorption heat pump system

Patent Grossman, Gershon [Oak Ridge, TN]

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.
Full Text Available
Coupled dual loop absorption heat pump

Patent Sarkisian, Paul H [Watertown, MA]; Reimann, Robert C [Lafayette, NY]; Biermann, Wendell J [Fayetteville, NY]

A coupled dual loop absorption system which utilizes two separate complete loops. Each individual loop operates at three temperatures and two pressures. This low temperature loop absorber and condenser are thermally coupled to the high temperature loop evaporator, and the high temperature loop condenser and absorber are thermally coupled to the low temperature generator.
Full Text Available
Heat exchanger bypass system for an absorption refrigeration system

Patent Reimann, Robert C [Lafayette, NY]

A heat exchanger bypass system for an absorption refrigeration system is disclosed. The bypass system operates to pass strong solution from the generator around the heat exchanger to the absorber of the absorption refrigeration system when strong solution builds up in the generator above a selected level indicative of solidification of strong solution in the heat exchanger or other such blockage. The bypass system includes a bypass line with a gooseneck located in the generator for controlling flow of strong solution into the bypass line and for preventing refrigerant vapor in the generator from entering the bypass line during normalmore »« less
Full Text Available
Heat pump having improved defrost system

Patent Chen, Fang C [Knoxville, TN]; Mei, Viung C [Oak Ridge, TN]; Murphy, Richard W [Knoxville, TN]

A heat pump system includes, in an operable relationship for transferring heat between an exterior atmosphere and an interior atmosphere via a fluid refrigerant: a compressor; an interior heat exchanger; an exterior heat exchanger; an accumulator; and means for heating the accumulator in order to defrost the exterior heat exchanger.
Full Text Available
Heat pump system with selective space cooling

Patent Pendergrass, Joseph C [Gainesville, GA]

A reversible heat pump provides multiple heating and cooling modes and includes a compressor, an evaporator and heat exchanger all interconnected and charged with refrigerant fluid. The heat exchanger includes tanks connected in series to the water supply and a condenser feed line with heat transfer sections connected in counterflow relationship. The heat pump has an accumulator and suction line for the refrigerant fluid upstream of the compressor. Sub-cool transfer tubes associated with the accumulator/suction line reclaim a portion of the heat from the heat exchanger. A reversing valve switches between heating/cooling modes. A first bypass is operative to directmore »« less
Full Text Available

Similar Records