Patent ID: 8695374
Filing Date: 2014-04-15
Classification: F25B,F28D,Y02A,Y02B,Y02E

Abstract:
1. A chemical heat pump including an active substance and a volatile liquid that can be absorbed by the active substance at a first temperature and desorbed by the active substance at a second higher temperature, the active substance having at the first temperature a solid state that absorbs the volatile liquid and a vapour phase thereof, the active substance changing to a liquid state or a solution phase as it absorbs the volatile liquid, and at the second temperature the active substance has a liquid state or exists in a solution phase, from which the volatile liquid and a vapour phase are desorbed as the active substance changes back at least partly to the solid state, including: a reactor part containing the active substance and including a first heat exchanger, an evaporator/condenser part containing a portion of the volatile liquid that exists in a condensed state, and including a second heat exchanger, and a channel for the vapour phase of the volatile liquid that connects the reactor part and the evaporator/condenser part to each other, wherein the reactor part contains a matrix for the active substance, so that the active substance is held in the matrix at all times whether the active substance is in a solid state, a liquid state, or a solution phase, wherein the matrix comprises open pores, and cross-sectional dimensions of the pores are in a range of 10-60 um.