Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Sophia Antipolis Energie Developpement

Commissariat a L'energie Atomique

Alain Marechal

Jean-Antoine Gruss

Didier Rossi

Michel Wohrer

Stephane Colasson

Stéphane Colasson

Christian Lenôtre

Christian LENÔTRE

A set of heat pipes for solar collectors is provided. The set includes a plurality of heat pipes, each heat pipe being suitable for being laid out in a respective solar collector, and including a heat pipe fluid, a first sheet and a second sheet locally merged with each other and delimiting a reservoir. The reservoir containing the heat pipe fluid extends over a hot part for evaporating the heat pipe fluid and a cold part for condensing the heat pipe fluid, and is formed by an interstice between the two sheets. The reservoirs of at least two heat pipes are delimited by a same first sheet and a same second sheet.

Set of heat pipes for solar collectors

A solar collector () includes: an outer tube () of circular cross-section, closed at one of its ends, an absorption layer () arranged inside the outer tube (), for absorbing solar radiation (Rs), and a heat pipe () including a hot part () laid out inside the outer tube (), a cold part () arranged outside the outer tube (), and a reservoir () containing a heat pipe fluid () and extending over the hot part () and the cold part (). The outer tube () is hermetically closed around the heat pipe () at the other of its ends, a vacuum being formed inside said outer tube (). For the hot part () of the heat pipe (), the reservoir () is applied at least locally against the absorption layer ().

Solar collector, and an electrical energy generation plant including such solar collectors

A radiator for domestic heating with a heat-transfer fluid operating in two-phase form includes a reservoir of the heat-transfer fluid; a hot source, intended to raise the temperature of the heat-transfer fluid to a temperature such that it causes said fluid to undergo a change of phase; and a heater, at which the heat transfer with ambient air takes place, having n channels, communicating in a lower zone with the reservoir, it being possible for n to be equal to 1. The heat-transfer fluid is a mixture of at least two different heat-transfer liquids, the heat-transfer liquids having between them boiling points differing by at least ten degrees Celsius, and the liquid with the lowest boiling point representing 70% to 95% of the volume of the mixture for a mixture temperature of about 20&#xb0; C.

Radiator for domestic heating with a two-phase heat-transfer fluid

A home heating radiator using a heat transfer fluid operating in phase change form, includes a reservoir of heat transfer fluid, and electric resistance heat source, for raising the temperature of the heat transfer fluid to a temperature such as to cause a phase change of the fluid, and a heating body where heat transfer takes place with the ambient air, the heating body including a number, n, of channels, communicating in the lowermost part of the reservoir, where n may be equal to 1.

Growing community of inventors

Tullins, France

Alain Marechal