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Development and Testing of a Flattened U-Tube Heat Exchanger
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Due to the present high cost of energy and the fact that costs are expected to continue rising in the future, those engaged in thermal processing must adapt new philosophies to maximize production efficiency. In most instances, the cost of energy may no longer be regarded as an insignificant factor in the cost of operation. Therefore, efficient use of energy and energy recuperation systems must be carefully evaluated. This paper discusses the development and testing of a U-Tube type flue gas energy recovery system for fuel fired industrial heat treating furnaces. The flattened U-Tube configuration was selected since its relative simple fabrication makes the unit quite cost effective. Development will be described beginning with the formulation of a numerical type mathematical model of the proposed heat exchanger which was computerized and then used to perform a parameter study to optimize the unit design. Analysis of data, generated by laboratory testing of the final computer selected design as a result of the computer study will be presented. Comparison of the experimental data to the computer model will also be demonstrated.
Huebner, S. R. (1980). Development and Testing of a Flattened U-Tube Heat Exchanger. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from