摘要:
A refrigerant comprising: a hydrofluorocarbon component comprising a mixture of: R134a, R227ea and optionally R125, and not more than 6.5% of a hydrocarbon component; wherein the amount of R227ea and R125 if present, is at least 35% of the hydrofluorocarbon component.
摘要:
A heating or cooling device comprising a closed circuit wherein a fluid is continuously or intermittently circulated in one direction by a pump, the system including a body of macroporous, microporous or mesoporous solid through which the fluid circulates to create a temperature gradient.
摘要:
A refrigerant composition consists essentially of three hydrofluorocarbon components selected from HFC134a, HFC125 and HFC143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −50° C. and +40° C.
摘要:
A refrigerant composition consists essentially of three hydrofluorocarbon components selected from HFC134a, HFC125 and HFC143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −50° C. and +40° C.
摘要:
A refrigerant composition consists essentially of a combination of two hydro fluorocarbon components selected from R125 and R143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −50° C. and +40° C.
摘要:
A gas separation device for separating a reactive gas from a gaseous mixture comprising porous anode and cathode electrodes separated by an ionic membrane,the anode being impregnated with an absorbent compound or solvent;the cathode being impregnated with an electrically conductive liquid;a power supply for supplying electric charge to the electrodes;an inlet for a gaseous mixture, the inlet communicating with a chamber adjacent the cathode;and an outlet for gas from the chamber so that gas passing from the inlet to the outlet contacts the cathode;wherein reactive gas is absorbed from the gaseous mixture by the absorbent compound and retained in the device and wherein the retained gas subsequently desorbed from the absorbent compound;wherein the absorption, desorption or both are promoted by application of electric charge to the electrodes.
摘要:
A refrigerant composition consists essentially of a combination of two hydro fluorocarbon components selected from R125 and R143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −50° C. and +40° C.
摘要:
A refrigerant composition consists essentially of three hydrofluorocarbon components selected from HFC134a, HFC125 and HFC143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −5O° C. and +4O° C.
摘要:
Non ozone depleting and non flammable refrigerant compositions with GWPs less than 2,000 ITH which replace R404A, R507, HCFC22 and CFC502 in refrigeration systems.
摘要:
A refrigerant composition consists essentially of three hydrofluorocarbon components selected from HFC134a, HFC125 and HFC143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range −50° C. and +40° C.