The application of the principles of heat transfer to the design of equipment to accomplish a certain engineering objective is of extreme importance for an applying the principles to design the individual is working toward the important goal of the product development for economic gain. Economics plays a key of role in the design and selection of heat exchange equipment and the engineering should bear this mind when embarking any new heat transfer design problems. The weight and size of heat exchangers used in space or aeronautical applications are very important parameters and this cases cost considerations are frequently subordinated insofar as material and heat exchanger construction cost are concerned. The weight and size are important cost factors in the overall applications in the fields and thus may still be considered as economic variables. NASA Helps Build Strong Cities and Communities Feed gearbox with slee
Help to people supply all information Machine and machine parts such as turbine, boiler , car, engine and so on