Development and Experimental Study on Heat Exchanger with High Efficiency of Mining Machinery

摘要

The flow patterns, pressure drop, and heat transfer characteristics of shell and tube heat exchangers with different shell side structure were studied systematically by experiments. Experiments show that the optimal angle of helical baffle is 40 deg C. and the optical porosity of porous media is 0.985.Based on this ,a new oil cooler was developed for hydraulic system of mining machinery ,and its heat transfer coefficient is higher than that of the existing oil coolers.