New working fluids for gas-fired Rankine cycle heat pumps
A detailed study was made to determine an optimum set of key physical properties for a dual loop Rankine cycle heat pump working fluids. Five properties were defined and using a computer program, an optimum (ideal) property profile was developed. These profiles were defined for both the power and vapor compression loop in an attempt to compare the property profiles of known and possible new fluids to the optimum profies obtained. Five single fluids and six possible dual fluid systems (separate and different power and vapor compression fluids) were singled out as a good match which did not have impossible combinations of physical properties. These fluids and fluid combinations were used as working fluids in another computer program which simulated their thermodynamic performance in a dual loop Rankine cycle heat pump. Once the thermodynamic performance analysis of these candidate fluids was complete, fluid effectiveness was compared on the basis of yearly gas consumption of each fluid operating in a heat pump. The yearly gas consumption was calculated for each fluid system being utilized in a dual loop Rankine cycle heat pump operating in a residential home located in Houston, St. Louis, and Chicago respectively.
- OSTI ID:
- 6889369
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HEAT PUMPS
RANKINE CYCLE POWER SYSTEMS
WORKING FLUIDS
COMPRESSION
COMPUTER CALCULATIONS
FUEL CONSUMPTION
MIXTURES
NATURAL GAS
OPTIMIZATION
POWER
THERMODYNAMIC MODEL
VAPORS
DISPERSIONS
ENERGY CONSUMPTION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HEAT EXCHANGERS
MATHEMATICAL MODELS
PARTICLE MODELS
STATISTICAL MODELS
320100* - Energy Conservation
Consumption
& Utilization- Buildings