Keywords : Heat exchanger
journal of kerbala university,
Volume 8, Issue 0, Pages 31-40
The goal of heat exchanger design is to relate the inlet and outlet temperatures, the over all heat transfer coefficient, to the rate of heat transfer between the two fluids .The use of programming method can greatly aid in optimizing the design.
In this study a programmable method [successive summation method] is developed, applied and presented here using Microsoft Visual Basic (version 6) to determine heat – transfer coefficients and the operating temperatures of a two pass heat exchanger [tube bundle permits a hot gas to pass in a-u- pattern through the exchanger with a shell side contains one – pass cooling water], has replaced the classical log-mean temperature difference , LMTD,method. As many plant heat exchanger operations are not accurately analyzed by this method, due to the correction factors associated with it, which must be obtained experimentally where complete sets of data are rare.