Efficient gas hot-air furnace and heating process

Patent · Tue Apr 09 00:00:00 EDT 1991

OSTI ID:5624769

Astle, Jr, W B

This patent describes space heating apparatus in which fuel gas is burned and heat is transferred from the resulting combustion gases to a cool air stream to produce heated air. It comprises a combustion chamber, the chamber comprising an inlet for receiving combustion air and a burner for burning fuel gas in the combustion air to produce combustion gases; and a primary heat exchanger for receiving the combustion gases and for extracting the majority of the heat of combustion from the gases, the primary heat exchanger comprising a porous heat sink member, ducting for delivering the combustion gases to the heat sink member, the gases being delivered along a combustion- gas path, a blower and ducting for directing cool air along a cool air path to the heat sink member, and means for drawing the combustion gases and cool air through the porous heat sink member so that portions of the member alternately pass through the combustion-gas path and the cool-air path, to transfer heat from the combustion gases to the cool air, wherein the cool air is directed to the heat sink member along two separate cool-air paths, and wherein the means for moving the heat sink member includes means to pass most portions of the member alternately through the combustion-gas path and both the cool-air paths.

• Assignee: NOV; NOV-92-014008; EDB-92-049067
• Patent Number(s): US 5005556; A
• Application Number: PPN: US 7-364614
• OSTI ID: 5624769
• Resource Relation: Patent File Date: 8 Jun 1989
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
GAS FURNACES
DESIGN
SPACE HEATING
COMBUSTION CHAMBERS
COMBUSTION CONTROL
FUEL GAS
HEAT EXCHANGERS
HEAT SINKS
CONTROL
FLUIDS
FUELS
FURNACES
GAS FUELS
GASES
HEATING
SINKS
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)