The basic conceptualization of a heat pump can be understood as a machine or device that delivers heat from one area which is at a lower temperature to another are which is at a higher temperature by using mechanical work or a high-temperature heat source. Thus a heat pump may be transformed as a "heater" if the motive is to warm the heat sink, or as a "refrigerator" if the motive is to cool the heat source. Hence heat pumps make a valuable contribution to energy conservation by utilizing the self generated energy to the fullest because in either case, the operating principles are identical. Heat is moved from a cold place to a warm place or vice-versa. Heat pumps operate on the vapour compression cycle using a refrigerant as the working fluid as a medium to transfer heat.
SCOPE OF STUDY:
- Determination of co-efficient of performance of the unit when working as water-to-air heat pump.
- To Construction of Energy balances for completed system over a range of operating conditions. To determine overall heat transfer co-efficient for condenser and evaporator.
Compressor : Hermitically sealed compressor, reciprocating type. Capacity 1/3 Ton.
Refrigerant : R-134A
Condenser : Water cooled type shell and coil condenser with refrigerant inside the tube.
Evaporator : Air cooled Compatible capacity.
Water Flow Measurement : By Rotameter
Air Flow measurement : By Velocity sensor
Expansion Valve : Capillary Tube, Compatible Capacity.
Pressure Gauges : 2 Nos. (For suction & discharge pressure)
Safety Control : Overload and over current protectors for compressor and Time delay circuit with Low/high voltage auto-cut.
Temperature Sensor : RTD PT-100 Type.
Control Panel Features:
Digital Voltmeter : 0-500 V
Digital Ammeter : 0-19.99 Amp.
Temperature Measurement: Digital Temperature Indicator with multi-channel switch.
With Standard On-off switch, mains indicator etc.
*An ENGLISH instruction manual with elaborate experimental procedures and block diagram etc. shall be provided with the training system set-up.