Psychrometer

Heat Pump is a device to pump heat from one source to another. The heat obtained by heat pump is more than that could be obtained by direct electrical heating. The apparatus consists of refrigeration system with water cooled shell and coil type evaporator and condenser.

SPECIFICATIONS:

1.Compressor – Hermetically sealed compressor using R-12 refrigerant, having capacity 0.3 tons of refrigeration. Condensing pressure – max. 15 Kg/cm2 (Actual pressures will depend upon working conditions). 2.Condenser – Shell and coil type with continuous water flow arrangement. 3.Evaporator – Shell and coil type with continuous water flow arrangement. 4.Expansion Valve – Internally equalized thermostatic expansion valve. 5.Measurements – a) Rotameter for condenser & evaporator water flow rate measurement. b) Rotameter for liquid refrigerant flow measurement. c) Pressure gauges for condensing and evaporating pressure – 2 Nos. d) Thermometer for refrigeration cycle & water temp, measurement – 7 e) Wattmeter for compressor input measurement. f) Ammeter for compressor current measurement. 6.Controls – a) HP/LP cutout for compressor. b) Overload protector for compressor. c) Gate valve to control water flow rates. d) Necessary switches and fuse. A technical manual is accompanies the unit.

SERVICES REQUIRED:

1.Floor surface area – 2m, X 2m. X 1.5m. height. 2.220V. 15Amp. Single Phase Stabilized power supply.

This model will be made out of original parts. The model will be suitably sectioned to demonstrate the internal construction details showing the minute information, and working of the same, the model will be suitably painted and mounted on a metal or wooden base & supplied with key card & very interesting literature regarding working of the same.

Actual Cut Section – Display Board (Set Of 30) This actual cut section model is a set of thirty components used in refrigeration & air conditioning. With the help of this model students can understand the working parts of the components used in refrigeration & air conditioning. This model will be made out of original parts. The model will be suitably sectioned to demonstrate the internal construction details showing the minute information, and working of the same, the model will be suitably painted and mounted on a metal or wooden base & supplied with key card & very interesting literature regarding working of the same.

The Plant uses ice can system. The cans filled with fresh wafer are kept in a tank in which brine is circulated. The brine is cooled by the refrigerant, which in turn cools the water in can and ice formation takes place.

SPECIFICATIONS:

1.Compressor : Kirioskar make hermetically sealed compressor using R 12 Refrigerant. 2.Condenser : 4 row type air cooled. 3.Expansion Valve : 0.5 TR capacity. 4.Evaporator : 1/2″ O.D. copper tube – 75 feet long. 5.Filter – Drier : Silica gel filled – 3/8″ flare connections. 6.Main Tank : 600 mm X 375 mm 7.Total Ice Cane Capacity : 7 Kg 8.Ice Making Capacity : 7 Kg / 4 Hours. 9.Thermocol insulation : 6.5″ 10.Brine Stirrer : Motor driven fan, 1 phase, 1/10 HP, 1440.

INSTRUMENTATION:

1.Temperature Indicator : Digital Type O300°c, with 1 °c least count, using Cr/Al thermocouples. Accuracy 1 % of full reading. 2.Compressor Energy Meter : Single Phase, 10 – 20 Amp. Capacity. 3.Pressure Gauge: a)0-21 Kg/cm2 b) -1 to 10.6 Kg/cm2 c) Both of 65 mm dial. 4.Digital Thermometer CONTROLS : 1.HP/LP Cutout : Auto reset type. 2.Thermostat : Auto reset type. A technical manual accompanies the unit.

SERVICES REQUIRED:

1.Floor Area – 2m. X 1.5m. X 1.5m. Height. 2.220 V., 15 Amp.Single Phase Stabilized power supply