MASS TRANSFER CLASS NOTES FOR ENGINEERING Before discussing convective mass transfer, it is necessary to compare convective heat transfer and convective mass transfer since there is a similarity between these two. In heat transfer, there is convective heat transfer coefficient ‘ h’. Similarly there is mass transfer coefficient in mass transfer. Prandtl number (Pr…
HEAT EXCHANGER CLASS NOTES FOR MECHANICAL ENGINEERING Heat exchanger transfers heat between two fluids separated by a solid wall in between. Cools the hot fluid. Heats the cold fluid. There are many types of heat exchangers. Different heat exchangers are used in different applications. Heat exchanger exchanges heat between two fluids with a solid wall…
REFRIGERATION HISTORY & BASICS CLASS NOTES Refrigeration is lowering of temperature. Conventional & non-conventional methods are in use. Use Silica gel in the drier cum filter to remove any moisture and impurities. Use steel pipes with ammonia. Use copper pipes with halogenated hydrocarbon refrigerants. Use dry evaporators & air cooled condensers in small capacity…