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Forced Convection Apparatus
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Product Code: EKE 2306The unit consists of a circular pipe; loosing heat by forced convection to air, being forced through it. Constant heat flux is added to pipe by an electrical heater, provided with input control. The pipe surface temperature is measured at various points along length of pipe. Temperature of air at inlet and outlet of test section are measured. Thus the students can calculate local and overall heat transfer coefficients in forced convection, at various airflow rates and various heat flux values. Specifications Test pipe - 32mm NB GI pipe, 500 mm. long, heated by band heater, outside. Centrifugal blower to force air through test pipe with How control valve. Variac 2A, capacity to force air through test pipe with flow control valve. An orifice meter with differential water manometer. Voltmeter and Ammeter to measure heater input. Multichannel digital temperature indicator to measures various temperatures. A technical manual accompanies the unit. Services Required: Bench area of about 1m. x 0.75 m. at working height. 239v, 15A, AC, supply with earthing connection.
Forced Convection Apparatus
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The evaporator is a kind of heat transfer apparatus where the heat transfer is done by forced convection or natural convection. It is used in an air-conditioning system to allow a compressed cooling chemical, such as R-22 or R-404A (Freon)etc., to evaporate from liquid to gas while absorbing heat in the process. The evaporator works the opposite of the condenser. Here refrigerant liquid is converted to gas, absorbing heat from the air in the compartment. When the liquid refrigerant reaches the evaporator its pressure has been reduced, dissipating its heat content and making it much cooler than the fan air flowing around it. This causes the refrigerant to absorb heat from the warm air and reach its low boiling point rapidly. The refrigerant then vaporizes, absorbing the maximum amount of heat. This heat is then carried by the refrigerant from the evaporator as a low-pressure gas through a hose or line to the low side of the compressor, where the whole refrigeration cycle is repeated.
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Forced Convection Apparatus
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Forced Convection Apparatus, Metacentric Height Apparatus, Pin Fin Apparatus
