A group of mixed working media containing HFCs and HPCs for mid-high temperature heat pump
A high-temperature heat pump and mixed working fluid technology, which is applied in the field of refrigeration working fluid, can solve the problems of cycle performance deterioration, inability to provide heat energy, and easy accidents, and achieve the effects of reducing the greenhouse effect, excellent environmental characteristics, and protecting the ozone layer
Inactive Publication Date: 2005-01-12
TIANJIN UNIV
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Problems solved by technology
At present, the most widely used air-conditioning-heat pump systems use HCFC22 or its substitutes R407C, R410A, etc. as working fluids. Th
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0043] Embodiment 1: get 43 mass %HFC134a, 3 mass %HFC152a, 54 mass %HFC254cb is used as a refrigerant after physical mixing at room temperature.
Embodiment 2
[0044] Embodiment 2: get 6 mass %HFC134a, 72 mass %R13I1,22 mass %HFC254cb, used as a refrigerant after physical mixing at room temperature.
Embodiment 3
[0045] Embodiment 3: get 7 mass %HFC152a, 70 mass %R13I1, 23 mass %HFC254cb, used as a refrigerant after physical mixing at room temperature.
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A grou of mixed working media being used suitable as refrigerant for heat pump with condensing temperature of 60-120 deg.c contains eight component materials of R1311, 1,1,2-HFC 134a, CHF2OCHF2(HFE134), CH2FOCHF2(HFE143), 1,1-HF(152a, 1,1,2,2,3-HF (245ca, 1,1,2,2-HFC254cb and 1,1,1,2,3,3-HFC 236ea for forming binary and ternary mixture as per different mass ratio.
Description
technical field [0001] The invention belongs to refrigerants in heat pumps or refrigeration and air-conditioning systems, and particularly relates to refrigerants used as refrigerants in medium-high temperature heat pump systems with a condensation temperature of 60-120°C. Background technique [0002] For the energy-consuming links that exist in large numbers in production and life and require relatively low thermal energy grades (temperature is 60-160°C), the use of heat pump heating technology not only has a higher total energy utilization efficiency than conventional energy supply methods, but also reduces CO 2 emissions (thereby reducing the greenhouse effect), and can also effectively utilize industrial waste heat, geothermal energy, solar energy, and low-grade heat energy contained in the environment (air, soil, surface water or shallow groundwater) to reduce heat pollution caused by waste heat discharge. At present, heat pump technology i...
Claims
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Inventor 王怀信马利敏郑臣明张宇杨强
Owner TIANJIN UNIV
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