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US 2014/0271102 A1Published application
Modified heat chamber and method to improve heat cycle efficiency using airflow control
OwnerDonald L. Laffler, James T. Hardininventors
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Abstract
The present invention relates to improvements in the art of operating large heat chambers so as to reduce both the time and the cost required for heating materials. More specifically, the modified heat chamber of the present invention provides a programmable control mechanism capable of significantly reducing areas with temperature variations or hot and cold spots. A programmable heat chamber leads to significant reductions in the required processing time and in the cost of the required energy.
Claims12
A modified heat chamber comprising:
- a programmable logic controller,
- a heat source,
- at least one polyphase circulation fan having a variable frequency drive and,
- the programmable logic controller programmed to control the direction of the at least one polyphase circulation fan.
1 more element
Method of operating a heat chamber comprising:
- providing a heat chamber having;
- a programmable logic controller,
- a heat source,
- at least one polyphase circulation fan having a variable frequency drive and,
- the programmable logic controller programmed to control the direction of the at least one polyphase circulation fan;
- starting the heat source, and,
- the programmable logic controller reversing the direction of the a least one polyphase circulation fan.
4 more elements
Dependencies are inferred from the claim text.