Heat pumps with air-water and other fluids
Journal Article
·
· Energy (Stamford, Conn.); (United States)
OSTI ID:6366559
The importance of fluid choice in heat cycle performance and efficiency is examined in the context of heat cycle application to heat pumps and heat engines. A comparison of the Joule (Brayton) and Rankine cycles with several working fluids and at a range of temperature and pressure conditions does not indicate a clear performance superiority because of the different temperatures at which heat is transferred. The coefficient of performance (COP) of an ideal Joule-cycle heat pump is shown to improve with an air-water mixture, although conventional phase-change refrigerants work best at the tempertures desired for space heating and cooling.
- Research Organization:
- Oak Ridge National Lab., TN
- OSTI ID:
- 6366559
- Journal Information:
- Energy (Stamford, Conn.); (United States), Journal Name: Energy (Stamford, Conn.); (United States) Vol. 4:1; ISSN ENGYD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
29 ENERGY PLANNING, POLICY, AND ECONOMY
290500* -- Energy Planning & Policy-- Research
Development
Demonstration
& Commercialization
42 ENGINEERING
425001 -- Engineering-- Power Cycles-- Brayton-- (1980-)
425002 -- Engineering-- Power Cycles-- Rankine-- (1980-)
BRAYTON CYCLE
COMPARATIVE EVALUATIONS
EFFICIENCY
ENERGY EFFICIENCY
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HEAT ENGINES
HEAT EXCHANGERS
HEAT PUMPS
PERFORMANCE
RANKINE CYCLE
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290500* -- Energy Planning & Policy-- Research
Development
Demonstration
& Commercialization
42 ENGINEERING
425001 -- Engineering-- Power Cycles-- Brayton-- (1980-)
425002 -- Engineering-- Power Cycles-- Rankine-- (1980-)
BRAYTON CYCLE
COMPARATIVE EVALUATIONS
EFFICIENCY
ENERGY EFFICIENCY
ENGINES
FLUIDS
HEAT ENGINES
HEAT EXCHANGERS
HEAT PUMPS
PERFORMANCE
RANKINE CYCLE
THERMODYNAMIC CYCLES
WORKING FLUIDS