skip to main content

Title: Validation of a PC based program for single stage absorption heat pump

An interactive computer code was developed to evaluate single stage absorption heat pump performance for temperature amplifier and heat amplifier modes using water as the refrigerant. This program performs the cycle calculations for single stage cycles based on the polynomial expressions developed to correlate experimental vapor-liquid-equilibrium (VLE) and specific enthalpy-concentration data for LiBr/water and (Li, K, Na)NO{sub 3}/water systems as well as the properties of pure water. The operating parameters obtained by this program were tested against mass and energy balances in documented cases and the results show that the maximum deviation between coefficient of performance (COP) values obtained by this software and the ones previously calculated is less than 3%. In addition, this program was used to study the effect of solution temperature leaving the absorber on the other operating parameters. This type of analysis could be used to improve and optimize cycle design. 4 refs.
Authors:
;
Publication Date:
OSTI Identifier:
6071783
Report Number(s):
ORNL/TM-11923
ON: DE92004904
DOE Contract Number:
AC05-84OR21400
Resource Type:
Technical Report
Research Org:
Oak Ridge National Lab., TN (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; HEAT PUMPS; M CODES; ABSORPTION REFRIGERATION CYCLE; COEFFICIENT OF PERFORMANCE; COMPUTER CALCULATIONS; COMPUTER PROGRAM DOCUMENTATION; HEAT TRANSFER FLUIDS; LITHIUM BROMIDES; NITROGEN OXIDES; POTASSIUM COMPOUNDS; PROGRESS REPORT; REFRIGERANTS; SODIUM COMPOUNDS; ALKALI METAL COMPOUNDS; BROMIDES; BROMINE COMPOUNDS; CHALCOGENIDES; COMPUTER CODES; DOCUMENT TYPES; FLUIDS; HALIDES; HALOGEN COMPOUNDS; LITHIUM COMPOUNDS; LITHIUM HALIDES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; WORKING FLUIDS 320303* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Equipment & Processes; 990200 -- Mathematics & Computers; 320106 -- Energy Conservation, Consumption, & Utilization-- Building Equipment-- (1987-)