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US 2013/0312945 A1Published application
Method and apparatus for providing efficient heat
OwnerJohan Holger Karlstedtinventor
Life of this patent
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Abstract
Disclosed is a method for providing heat that includes preheating an incoming air flow from outside an apparatus in a first channel of a heat exchanger by a flow in a second channel of the heat exchanger, transferring the flow from the second channel outside the apparatus through an exhaust channel, providing heat by the preheated incoming air flow in a heat pump, and transferring in a transfer channel a flue gas flow provided by a burner to the second channel.
Claims21
1-8. (canceled)
A method for providing heat comprises
- preheating an incoming air flow from outside an apparatus (210) in a first channel of a heat exchanger (240) by means of a flow in a second channel of the heat exchanger,
- transferring the flow from the second channel of the heat exchanger outside the apparatus through an exhaust channel (248a),
- providing heat by means of the preheated incoming air flow in a heat pump (250), and
- transferring in a transfer channel (270) a flue gas flow provided by a burner (222) to the second channel of the heat exchanger,
- wherein the method comprises
- receiving in the transfer channel a part of the exhausted flow from the exhaust channel and
- controlling a flow of the flue gas flow and the received part of the exhausted flow in the transfer channel so that moisture in the flue gas flow and the received part of the exhausted flow condenses on a surface of the second channel of the heat exchanger and reacts with flue gas particles of the flue gas flow when the flow of the flue gas flow and the received part of the exhausted flow interacts with the incoming air flow in the first channel of the heat exchanger increasing the preheating of the incoming air flow.
4 more elements
Dependencies are inferred from the claim text.