A three-dimensional inverse problem in imaging the local heat transfer coefficients for plate finned-tube heat exchangers

摘要: Abstract A three-dimensional inverse heat conduction problem in imaging the local transfer coefficients for plate finned-tube exchangers utilizing steepest descent method and a general purpose commercial code CFX4.4 is applied successfully present study based on simulated measured temperature distributions fin surface by infrared thermography. It assumed that no prior information available functional form of unknown study. Thus, it can be classified as function estimation calculations. Two different in-line tube arrangements with measurement errors are to estimated. Results show algorithm obtain reliable estimated coefficients.