VAPOUR JET REFRIGERATOR / HEAT PUMP Deluxe

This unit may be regarded as a combined heat engine and refrigerator/heat pump. The system powering the refrigerator/heat pump operates on the well-known Rankine cycle (frequently used in steam power plants), taking in heat at a modest temperature (approximately 90°C) and rejecting heat at the condenser temperature (approximately 30°C). The work output of this engine is in the form of the kinetic energy of a jet, rather than shaft work as is typical with a Rankine cycle. Learn about VAPOUR JET REFRIGERATOR / HEAT PUMP manufacturers for optimal educational outcomes.. The refrigerator/heat pump operates on the Vapour Compression Cycle, using this jet kinetic energy as its input. It absorbs heat at a low temperature in an evaporator and rejects heat at a higher temperature using the same condenser as the engine. Learn about VAPOUR JET REFRIGERATOR / HEAT PUMP refrigeration India for optimal educational outcomes.. Both the Rankine Power Plant Cycle and the Vapour Compression/Heat Pump Cycle are included in most engineering courses of study. This unit demonstrates practically the potential of combining these cycles so that a heat pump or refrigerator can be run from a heat output. Learn about VAPOUR JET REFRIGERATOR / HEAT PUMP price for optimal educational outcomes..

Construction:

• Panel: High quality GRP
• Steam generator: Rectangular GRP insulated vessel with 1.5 kW immersion heater containing the refrigerant vapour generator
• Refrigerant vapour generator: Stainless steel shell, Ø75mm × 200mm (L), with sight glass and pre-heating coil
• Ejector nozzle: Convergent-divergent; throat diameter 1.7mm
• Compressor diffuser: With combining cone, parallel and divergent portions
• Evaporator: Thick-walled glass cylinder with 500W heater (variable transformer controlled) and float-type expansion valve
• Condenser: Thick-walled glass cylinder with water cooling coil; coil surface area 0.1 m²
• Throttle valve: Manually adjustable to vary nozzle inlet pressure

Instrumentation:

• Thermometer: Digital type K, 0.1°C resolution, 12-way selector connected to 9 thermocouples
• Pressure gauges × 2: Range 0–800 kN m⁻² (refrigerant vapour generator and nozzle inlet pressure)
• Pressure gauges × 2: Range -100 to +100 kN m⁻² (evaporator and condenser pressure)
• Flow meter: Variable area glass tube type; range 0–75 g s⁻¹
• Voltmeter: Range 0–250V (evaporator power input)
• Ammeter: Range 0–3A (evaporator power input)

Safety Features:

• Pressure relief valves on vapour generator, evaporator and condenser
• High pressure cut-out on vapour generator and condenser
• Low water flow switch to cut power if insufficient condenser water flow
• Solenoid valve to isolate vapour generator from ejector, evaporator and condenser
• High temperature cut-out on all heater elements
• All circuits protected by fuse