Fuel conservation controller for capacity controlled refrigeration apparatus
Fuel conservation controller for heating and refrigeration apparatus
Absorption unit with variant control system
Control device and method for conserving fuel in an absorption refrigeration system
Temperature-dependent output control for a heat pump absorber
Multimode heating system and method for heating
Apparatus for controlling operation of refrigerator Patent #: 4429541
ApplicationNo. 06/429787 filed on 09/30/1982
US Classes:62/141, Of closed system sorbent type62/148, Of heating means62/238.3, With sorption62/476Sorbent type
ExaminersPrimary: King, Roy V.
Attorney, Agent or Firm
International ClassesF25B 49/00 (20060101)
F25B 33/00 (20060101)
F25B 49/04 (20060101)
AbstractA system for controlling a sorption heat pump. Fuel is fed to a burner via a feed line and a fuel valve. The burner heats a generator containing a heat transfer fluid such as a mixture of water and ammonia and generates pressure inside the generator. The vapors produced by the heating are condensed in a condenser. The condensed heat transfer fluid vapors are throttled and passed into an evaporator. The output fluid from the evaporator is returned via an absorber to the generator. Heat is exchanged between the fluid and a circulating medium for a thermal use provision in the condenser and in the absorber. An intensive thermodynamic parameter such as pressure or temperature of the fluid in the pressurized section of the sorption heat pump is controlled depending on the heat requirements of the thermal use provision and/or the thermal input from the environment into the evaporator. The generator and condenser can be constructed as a joint unit preferably with an intermediate rectifying column. The depleted solution coming from the bottom of the generator and the evaporated refrigerant can be combined in the absorber to a solution rich in refrigerant. The rich solution can be fed back to the rectifying column and entered into the column at a level, where the composition of the rich solution corresponds to the composition of the fluid inside the column.