DOUBLE HEAT EXCHANGES SYSTEM FOR MINIMIZING ENERGY AND POLLUTION CONTROL COSTS IN INDUSTRIAL PROCESSES

THERE ARE NUMEROUS INDUSTRIAL PROCESSES REQUIRING THAT MATERIAL BE HEATED AND THEN SUBSEQUENTLY COOLED. IF MOST OF THIS HEAT IS RECOVERED AND RECYCLED TO THE OVEN, THE NET POWER INPUT TO THE OVEN COULD BE SUBSTANTIALLY REDUCED. THE KEY TO ACCOMPLISHING THIS IS AN INCREASE OF THE HEAT TRANSFER COEFFICIENT BETWEEN GAS AND MATERIAL SO THAT THE HEAT EXCHANGERS ARE RESASONABLY COMPACT. SIMPLE EXPERIMENTSWILL BE PERFORMED TO INVESTIGATE THIS POSSIBILITY. MATHEMATICAL MODELS FOR THE PROCESSES WILL BE DERIVED WHERE POSSIBLE, OR EMPIRICAL RELATIONSHIPS WILL BE DEVELOPED. IT IS ANTICIPATED THAT A COMPACT HEAT EXCHANGER WITH A LOSS FACTOR OF LESS THAN FIVE PERCENT WILL RESULT FROM THE RESEARCH. IT IS ANTICIPATED THAT THESE COMPACT, EFFICIENT HEAT EXCHANGERS WILL FIND USE IN NUMEROUS INDUSTRIAL PROCESSES; E.G., PAINT CURING OVENS, PRINTING PRESS DRYERS, CHEMICAL AND FOOD PROCESSING OPERATIONS, ETC. WITH NET POWER BEING DECREASED BY A FACTOR OF TEN OR MORE OVER CONVENTIONAL OVENS, AND HOT, DIRTY EXHAUST GASES BEING REDUCED BY A SIMILAR FACTOR, THESE SYSTEMS WILL BE MORE COST EFFECTIVE THAN CONVENTIONAL SYSTEMS NOT ONLY BECAUSE OF THEIR COMPACTNESS AND ENERGY SAVINGS, BUT BECAUSE THEY HAVE A MUCH LOWER ENVIRONMENTAL IMPACT.