procurement of refrigeration and air conditioning lab equipment for mechanical engineering department. refer tender notice , refrigeration and air conditioning lab equipment , cooling tower test rig experiment: to determine the efficency of forced draft type coolingtower cooling tower:250 x 250 mm size, height 1000 mm, material: aluminum body with acrylic frame packing sheets: perforated aluminum corrugated blower : 1hp geyaser: 3 kw capacity indicator: digital temperature indicator – 8 channel thermocouples:1 mtr length, cr. al, wire mesh sheathing air flow measurement: u tube manometer, material glass, size 300mm water flow measurement: rotameter 0 to 60 cc/sec calibrated water tank : ms, 200 x 250 mm size starter: crompton/any reputed make. , vapour compression refrigeration test rig compressor type: hermetically shield 600 w cooling capacity: 0.3tr technology: inverter control refrigerant: r 600a no of passes: single tube material: copper energy meter: 1 phase 230 v temperature sensor: rtd (5 no’ s) storage space: 591*621*1500 mm condenser: finned tube type evaporator: plate type expansion valve: capillary coil type , open type air conditioning test rig technical specifications type : single cylinder compressor : 1 ton discharge : 0-10 lph refrigerant : r 122 or suitable condenser details : air cooled evaporator : 10 litre capacity no of passes : single outer tube dia : 6mm expansion device : capillary tube pressure drop : 0.5 kgf / cm2 tube material : copper fan (230 volts 2 amps) : one no (for condenser) freezer box : evaporator unit consists of a ss freezer energy meter : single phase 230 volts temp. measurement : 5 no’s rtd sensor will be provided to measure the temperature point temperature indicator: 8 channel digital temperature indicator with selector knob to change the temperature point. the whole set-up is ingeniously designed and schematically arranged on a powder-coated rigid structure , recirculating air conditioning test rig capacity: 1.0 tr compressor: hermetically sealed. condenser: forced convection air cooled. condenser fan:axial flow. drier/ filter: provided. expansion device:capillary tube. evaporator:forced convection air cooled. evaporator fan: axial flow type refrigerant:r-22. hp / lp cut-out:alco/ or danfoss / or indfoss or any equivalent make. temperature: 6 channel facilities with digital display. pressure:2 nos.; dial type pressure gauges. air flow measurement: by inclined tube manometer supply:220-240 volts, 50 hz, 1 phase. input power: provided for compressor and heater. list of experiments: cooling of fresh air with full exhaust. (summer experiment) heating of fresh air with full exhaust. (winter experiment) humidification of air. cooling or heating the air with partial recirculation. (calculations for mixing of two air streams having different characteristics.) cooling of air with full re-circulation (operation of the system as a window air conditioner.) => limited