2. Two-phase thermocapillary pumped fluid loops (BFDPT)
A thermocapillary pumped two-phase fluid loop is a sealed loop in which a fluid circulates between an evaporator, where thermal energy is extracted from the element whose temperature is to be controlled, and a condenser, where it is returned to a cold source. These two thermally "active" components are connected by pipes through which the liquid or steam flows. These devices are capable of transferring heat quantities of up to a few kW over a distance of several meters, in a gravity or space environment, with temperature variations of up to a few dozen degrees.
Like heat pipes, these devices contain no mechanical power to set the fluid in motion. It is the vaporization of the fluid within a porous matrix contained in the evaporator that sets the fluid in motion. Unlike heat pipes, the liquid and vapour phases are separated...
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Two-phase thermocapillary pumped fluid loops (BFDPT)
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