Application Of The Study On Configuration Optimization Of Plate Heat Exchanger And Its Heat Transfer Performances

Heat exchanger is the general equipment in such process industry as chemicalengineering, energy and power, metal refining, and etc. The performances of heat exchangerwill directly affect the process efficiency of energy conversion, utilization and recovery. Suchstudying as creative heat transfer technology, highly efficient energy saving technologies,development and manufacture of highly efficient heat transfer equipment will have importantpractical significance. Because of the low efficiency of energy conversion, utilization andrecovery at present, the aim of this project is to develop a new type plate heat exchanger. Itpresented the investigation on heat tranfer performances and its Configuration optimizationby the methods of both numerical and experiment.Configuration optimization was carried out for triangular and sinusoidal corrugatedplates by numerical simulation. Numerical methods were validated with existing experimentaldata. For the case of fix plate spacing 3.0mm, the optimal triangular corrugated plates werewith inclined angle of 15 deg and pitch of 20mm; while amplitude 10mm and wavelength70mm for the sinusoidal corrugated plates. The heat transfer enhancement in sinusoidalcorrugated plates was found to be the attribution of the coordination between the velocityvector and temperature gratitude. The flow and heat transfer performance were comparedbetween the sinusoidal and triangular corrugated plates under identical configurationparameters and the conclusion is as follows: for the case of wave height less than 20mm, theperformance of triangular plates is superior to sinusoidal ones, vice versa when wave heightlarger than 20mm and similar to each other at the wave height of 20mm.Under the condition of of the standard heat transfer test platform, this paper alsopresented experimental investigation on the heat transfer performances and pressure drop ofthe plate heat exchanger with optimizatal configuration by above numerical simulation. Theresults showed that the numerical simulation results agree with the experimental results,andthe numerical method of above is reliable. In order to provide a more complete reference forengineering design and application of plate heat exchanger, the fitting equqtion of heattransfer and pressure drop be developed through the experimental data. In the last two case ofengineering of plate heat exchanger with optimizatal configuration be compared, it showedthat achieved good results.