Method and device for improving the efficiency of a heat generator
OwnerSten Thoreninventor
Life of this patent
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Abstract
The present invention is directed to a method and apparatus for heat generation or heat exchange in which a primary medium emits heat while passing through an evaporator in which there is a heat-transfer medium which thereby evaporates or boils and thereby increases the pressure of the heat-transfer medium. Once the pressure has increased, it is transferred to a condensor where a secondary medium is heated from the condensation of the heat-transfer medium. The method and device according to the present invention increase the efficiency, particularly when the primary medium is at a low temperature, by intensifying the heat at least in a portion of the evaporator.
Claims11
In the method of heat generation in a heat pump in which a heat-transfer fluid is circulated between an evaporator section and a condensor section and in which the heat-transfer fluid in the evaporator section is heated by means of an initial indirect heat exchange with a primary fluid medium circulating through said evaporator section, said heat-transfer fluid being evaporated and circulated to the condensor section in which a second indirect heat exchange transfers the heat from the heat-transfer fluid to a secondary fluid medium passing through the condensor section, the improvement for increasing the efficiency of the heat pump comprising the steps of intensively heating at least a portion of the evaporator section by means of circulating said primary fluid medium through said portion of said evaporator section by diverting at least a portion of the primary fluid medium downstream of the evaporator section to flow several times through said evaporator section to intensify the heating thereof.
A heat pump for transferring heat between a primary medium, a heat-transfer medium and a secondary medium comprising:
- a housing including several chambers forming fluid passageways;
- an evaporator operatively disposed in a first chamber and being in fluid communication with a primary fluid;
- a condensor operatively disposed in a second chamber and being in fluid communication with a secondary fluid;
- a compressor operatively disposed in a third chamber and being in fluid communication with a portion of said secondary fluid;
- said evaporator, condensor and compressor forming a circuit for circulating a heat-transfer medium, said heat-transfer medium being heated by means of an initial indirect heat exchange with said primary fluid circulating through said first chamber and said heat-transfer medium being evaporated and circulated to said condensor in which a second indirect heat exchange transfers the heat from the heat-transfer medium to said secondary fluid circulating through said second chamber;
- and
- means for diverting at least a portion of said primary fluid downstream of said evaporator and recirculating said portion of said primary fluid to flow several times through at least a portion of said evaporator to intensify the heating thereof.
A heat pump for transferring heat between a primary medium, a heat-transfer medium and a secondary medium comprising:
- a housing including several chambers forming fluid passageways;
- an evaporator operatively disposed in a first chamber and being in fluid communication with a primary fluid;
- a condensor operatively disposed in a second chamber and being in fluid communication with a secondary fluid;
- a compressor operatively disposed in a third chamber and being in fluid communication with a portion of said secondary fluid;
- said evaporator, condensor and compressor forming a circuit for circulating a heat-transfer medium, said heat-transfer medium being heated by means of an initial indirect heat exchange with said primary fluid circulating through said first chamber and said heat-transfer medium being evaporated and circulated to said condensor in which a second indirect heat exchange transfers the heat from the heat-transfer medium to said secondary fluid circulating through said second chamber;
- at least a portion of said evaporator being intensively heated by circulating said primary fluid through said portion of said evaporator section;
- and
- said evaporator including a first and second coil system disposed adjacent to each other for circulating said heat-transfer medium, at least half of second coil system being positioned downstream and behind said first coil system and at least half of said first coil system being positioned downstream and behind said second coil system.
Dependencies are inferred from the claim text.