TWO-PHASE TYPE HEAT TRANSFER DEVICE FOR HEAT SOURCES OPERATING AT A WIDE TEMPERATURE RANGE

摘要

A two-phase type heat transfer device (10) for heat sources operating at a wide temperature range. The heat transfer device (10) includes an evaporator (21) collecting heat from a heat source, a condenser (21) providing heat to a cold sink by a first working fluid passing through liquid and vapor transport lines (25, 27) that connect the evaporator (21) and the condenser (23). The evaporator (21) is arranged inside a saddle (31) configured for avoiding that the temperature of the first working fluid in the evaporator (21) is greater than its critical point. The invention also refers to aircraft ice protection systems using the heat transfer device (10).

主权项

1. A two-phase type heat transfer device comprising:
an evaporator configured to collect heat from a heat source; a condenser configured to provide heat to a cold sink, and liquid and vapor transport lines connected to the evaporator and the condenser, wherein a first working fluid circulates through the liquid and vapor transport lines, the evaporator and the condenser, wherein an operating temperature of the heat source is in a range between temperatures T1 and T2, wherein T1 is at least 75° C.; wherein the first working fluid has a critical point temperature Tc1 higher than T1 and lower than T2, and a freezing point temperature Tf of the first working fluid is lower than a certain minimum environmental external temperature T3 for the liquid transport line; and wherein the evaporator is arranged in a saddle configured to avoid having the temperature of the first working fluid in the evaporator exceed the critical point temperature Tc1.