I really need to know why heat transfer is very important subject for mechanical engineering course especially in steam turbine. I hope someone could help me...
Mechanical Engineer can be involved in calculations for and the design of :- Insulation in houses, thickness of insulation required for the lagging of refrigerated pipes, what material to use for brake linings, how much cooling water will be required in an engines cooling system for efficient running, what size condensers will be required to design and fabricate a condenser for a large refrigeration plant, what size boiler tubes to put in a large boiles to transmit enough heat to drive an aircraft carrier at 36 knots. A mechanical Engineer not having any idea on heat transfer would be like having heaps of money but not being able to count.
I will answer simply by telling you that heat is not a good thing in machinery. It brings the utility of machines down and can even stop or destroy them. In units using magnetism, heat can deminish the magnets force drasticly even erase their magnetism completely. Therfore it is important to cause heat to transfer outside the machinery as much as possible. And try to change the conception of machinery so that it creates a minimum of heat.
