EXPERIMENTAL INVESTIGATION OF EFFECTIVENESS OF HEAT WHEEL AS A ROTORY HEAT EXCHANGER

Abstract

General Today’s condition is continuous deduction of usable energy potential. Everything, everyone requires energy to survive, it may be living or may be non-living like machine, engines etc. Conventional sources of energy are degradable, thus research is going on to use non-conventional sources of energy, but it can’t possible that all conventional sources replaced by non-conventional sources in day to day life till today and long years later on. So while using conventional sources, recovery of waste heat is only the solution to increase the life span of conventional sources. Our main intention should be to save as maximum energy as possible in any application. There are some applications related sources where the energy goes waste in the form of heat. Our project is experimental test rig of Heat Wheel. The basic function of Heat wheel is recovery of waste heat in vapour stream. By this project we have to prove that heat wheel is more effective for recovery of latent as well as sensible heat. Generally heat recovered is transferred to air and then it is supplied for space heating, combustion etc. in various industries. In this case steam is one fluid and air is another fluid. The steam is considered to be vapour stream which would be wasted just like vapour stream in industries. By measuring steam temperature and air inlet-outlet temperature, it is possible to determine effectiveness of heat wheel. Also we can find efficiency of wheel to condensed steam. Thus experimental test rig have to make to demonstrate effectiveness of heat wheel as Rotary Heat Exchanger. Heat wheel also comes in the category of rotary matrix type heat exchanger. The Heat Wheel is a device which can transfer latent heat of moisture by condensing it. The heat is transfer through medium of porous conductive and absorptive material of wheel. It is cleared that heat wheel can transfer heat from air to air for small temperature difference also.