Gas convection oven with egg-shaped heat exchanger tube

Patent · Tue Nov 25 00:00:00 EST 1986

OSTI ID:7226577

Baggott, G T; Cooperrider, M T

This patent describes a heating system, comprising a heating compartment, a tubular heat exchanger within the heating compartment, heat input means for supplying hot fluid into the heat exchanger for flowing therein, and means for causing other fluid to flow across the heat exchanger in a direction generally transverse to the longitudinal axis of the heat exchanger for transfer of thermal energy from the heat exchanger to such other fluid flowing thereacross. The heat exchanger has an egg-shaped cross-section oriented with its narrow end facing downstream of the flow of such other fluid, the heating compartment having wall means cooperatively positioned with respect to the heat exchanger further to direct flow of such other fluid on both sides of the heat exchanger. The wall means includes a wall adjacent to and generally parallel to the longitudinal axis of the heat exchanger, and the major axis of the egg-shape cross-section is oriented at an angle to the direction of flow of such other fluid and at an angle to the wall with its narrower end nearest the wall to define with such wall a restricted flow passage for such other fluid at the narrower end. Here such other fluid flowing across the heat exchanger will be caused to flow closely over substantially the entire exterior extent thereof to maximize thermal energy transfer while minimizing heat concentration at the downstream side of the heat exchanger.

• Assignee: Crescent Metal Products, Inc., Cleveland, OH
• Patent Number(s): US 4624301
• OSTI ID: 7226577
• Resource Relation: Patent File Date: Filed date 1 Aug 1984
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
42 ENGINEERING
03 NATURAL GAS
GAS APPLIANCES
DESIGN
HEAT EXCHANGERS
OVENS
CONVECTION
HEAT TRANSFER
HEAT TRANSFER FLUIDS
INCIDENCE ANGLE
PIPES
WALLS
APPLIANCES
ENERGY TRANSFER
FLUIDS
MASS TRANSFER
320100* - Energy Conservation
Consumption
& Utilization- Buildings
421000 - Engineering- Combustion Systems
034000 - Natural Gas- Combustion