PENGARUH PERUBAHAN KECEPATAN ALIRAN PADA HEAT EXCHANGER JENIS SHELL AND TUBE TERHADAP KOEFISEN OVERALL HEAT TRANSFER (THE EFFECT OF CHANGES IN THE FLOW RATE ON HEAT EXCHANGER TYPE SHELL AND TUBE TO COEFFCIENT OVERALL HEAT TRANSFER)

Heat exchanger is the equipment used for heat transfer between two or more fluids . As a tool for the exchange of heat from the fluid with a high temperature fluid to the low temperature , a heat exchanger is expected to have a heat transfer coefficient overall ( Ud ) as appropriate . Theoretically increase in the flow rate will lower the price of the heat transfer coefficient overall ( Ud ) itself . From this phenomenon , wants to study the influence of fluid velocity of heat to the heat transfer coefficient overall ( Ud ) at a Shell and Tube Heat Exchanger . The result showed that the increased rate of hot fluid at a temperature of hot fluid entry is kept constant , the heat transfer coefficient overall ( Ud ) decreases.