Mechanical Heat Pump Trainer

Range Of Experiment

• To study various components and controls used in heat pump. • To evaluate gross heat rejection of the heat pump. • To calculate actual & theoretical c.o.p. Of the system. • To plot system performance on p-h chart.


*Rating conditions :

Ambient temperature= 350 C, atmospheric pressure = 1.01 bar, suction pressure=70 psig, discharge pressure=300 psig, evaporation temperature=7.70 C, discharge temperature=550 C.

Technical Details
Sub-Title Parameter Description
Refrigeration Systems Model Mechanical Heat Pump Trainer
Rating 500 Watts gross heat rejection at rated test conditions*
Compressor Hermetically sealed. Emerson / Tecumseh / Danfoss or equivalent make.
Heat Rejection Calorimeter Water cooled provided
Heat Absorption Calorimeter Immersed tube; Direct expansion type
Calorimeter Insulation Nitrile rubber foam Provided.
Drier/ filter Molecular sieve type
Expansion device Capillary Tube
Refrigerant R-134a
Control & Indicators HP / LP Cut-out Danfoss/Alco/ Castle or equivalent make
Temperature Thermostat with Indication & 6 channel digital display
Pressure Dial pressure gauges provided
Refrigerant Flow Glass tube Rotameter
Water Flow Glass tube Rotameter
Electrical System Supply 230 Volts, 50 Hz, 1 phase
Input power 600 Watts
Rated current 3.5 Amps.
Fan motor Induction type
Indicating lamps Provided for compressor.
Energy-meters Provided for compressor.
Construction Material 1.2 mm thick CRCA
Outer finish Powder coating
Size 1000 x 600 x 1100 ( L X B X H ) mm