Working medium and heat cycle system
AssigneeAsahi Glass Company, Limited
InventorMasato Fukushima
Life of this patent
Estimating the term…
Abstract
To provide a working medium for heat cycle which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (the efficiency and the capacity), and a heat cycle system excellent in the cycle performance (the efficiency and the capacity). A working medium for heat cycle comprising 1,2-difluoroethylene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).
Claims14
A working medium comprising at least 60 mass %, based on the mass of the working medium, of (Z)-1,2-difluoroethylene, from 1 to less than 40 mass %, based on the mass of the working medium, of at least one hydrofluorocarbon selected from the group consisting of difluoromethane and pentafluoroethane, and from 1 to less than 40 mass %, based on the mass of the working medium, of a hydrochlorofluoroolefin and/or a chlorofluoroolefin.
A working medium comprising (Z)-1,2-difluoroethylene, at least one hydrofluorocarbon selected from the group consisting of difluoromethane and pentafluoroethane, and a hydrochlorofluoroolefin and/or a chlorofluoroolefin.
Dependencies are inferred from the claim text.