Abstract: The absorption power generator is similar to a conventional steam power generator. High pressure vapor is produced in a vapor generator and expanded in a prime mover to produce power. Exhaust vapor from the prime mover is collapsed to liquid and pumped back into the vapor generator. The absorption power generator differs in that the temperature of the vapor generator heat source can be much lower. This is because a low boiling point liquid, such as ammonia, is vaporized instead of water. Instead of condensing the exhaust vapor from the prime mover in a condenser, the exhaust vapor is absorbed by an absorbent liquid in an absorber. For ammonia, water is the absorbent liquid. Unused heat is rejected from the process, at normal heat rejection temperatures, by a high pressure condenser, working in parallel with the prime mover.

Abstract: In a new type of evaporator both a stream of cooling liquid and vapor are produced simultaneously. The cooling liquid is then used to compress and condense the vapor in an ejector-condenser. Heat of vaporization is recaptured in the ejector-condenser and recycled back to the evaporator, thus leading to high thermal efficiency.

Abstract: A direct contact condenser of a distillation system has a condenser vessel comprising a vapor space with a vapor inlet, a condensate pump, with the liquids' level defining the top of the sump and the bottom of the vapor space. The thermal efficiency of the system is improved wherein the heat of condensation is concentrated in one of two coolant effluent lines while the other coolant line removes unheated excess liquid coolant. This is accomplished with the use of two temperature sensors at spaced vertical locations of the sump and a liquid level control together regulating the opening and closing of respective valves in respective influent and effluent lines of the sump.