Design and Development of Experimental Model Condensing Unit
LITTLE (ARTHUR D) INC CAMBRIDGE MA
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Research was undertaken to investigate means for preventing the formation of fog resulting from operation of internal combustion engines in polar regions. From fundamental psychometric data a general theory of operation was developed defining the limiting requirements for any successful system. This theory was proven by construction and test of prototype units meeting the requirements. Tests on the final heat-exchanger unit were performed at various cold-chamber temperatures from 0 deg down to -70 deg F. The unit was effective in preventing the formation of fog under all of the conditions tested. The total volume of surfaces of the final arrangement chosen was 0.087 cu ft weight 3.6 lbs and blower power 0.00265 of the theoretical air horsepower. Transposed to a 100-hp unit, the indicated size of the parallel exchanger surface sections would be approximately 10 x 12 x 48 in., which would replace the present muffler. Blower power would be about 0.5 hp. This size could be reduced materially at the expense of increased air horsepower.
- Reciprocating and Rotating Engines