Posted inHeat & Mass Transfer HEAT PIPES Posted by admin September 15, 2021 1) A heat pipe is a simple device with no moving parts that can transfer large…
Posted inHeat & Mass Transfer THE PRESENCE OF NON-CONDENSABLE GASES IN CONDENSERS Posted by admin September 15, 2021 1) Most condensers used in steam power plants operate at pressures well below the atmospheric pressure…
Posted inHeat & Mass Transfer DROPWISE CONDENSATION Posted by admin September 15, 2021 1) Dropwise condensation, characterized by countless droplets of varying diameters on the condensing surface instead of a continuous…
Posted inHeat & Mass Transfer FILM CONDENSATION Posted by admin September 15, 2021 1) increases in the flow direction x because of continued condensation at the liquid–vapor interface. a) Heat in the…
Posted inHeat & Mass Transfer CONDENSATION HEAT TRANSFER Posted by admin September 15, 2021 1) Condensation occurs when the temperature of a vapor is reduced below its saturation temperature a) It…
Posted inHeat & Mass Transfer FLOW BOILING Posted by admin September 15, 2021 1) In flow boiling, the fluid is forced to move by an external source such as…
Posted inHeat & Mass Transfer POOL BOILING Posted by admin September 15, 2021 1) Steps involved a) Early stages of boiling, some bubbles stick to the surface of the pan…
Posted inHeat & Mass Transfer BOILING HEAT TRANSFER Posted by admin September 15, 2021 1) Boiling is a liquid-to-vapor phase change process just like evaporation, but there are significant differences…
Posted inHeat & Mass Transfer THE EFFECTIVENESS–NTU METHOD Posted by admin September 15, 2021 1) This method is based on a dimensionless parameter called the heat transfer effectiveness 2) To determine…
Posted inHeat & Mass Transfer THE LOG MEAN TEMPERATURE DIFFERENCE METHOD Posted by admin September 15, 2021 ) a) The expressions in parallel-flow and counter-flow heat exchangers. b) For specified inlet and outlet temperatures, the…