This is a cooling tower demonstration unit.

Water is heated in the storage tank, pumped through a flow meter and sprayed at the top of the tower. The packing in the tower breaks the water into thin films and droplets. The water is cooled mainly by evaporation and drops to the bottom tank. Makeup water is admitted to the storage tank through a float valve. A small blower with a flow control valve is connected to the bottom tank, and air is driven upwards through the column and exhausted at the top.

Instrument are provided for measurement air flow rate, water flow rate, pressure drop across the cooling tower, temperature and moisture of the inlet and outlet air.

Instruction manual is also included.

  • Observation of water flow patterns and distribution.
  • Measurement of water and air flow rates, temperatures and humidity.
  • Application of steady flow equation to energy balance.
  • Cooling tower performance at various air and water flow rates with different inlet water temperatures.
Packed column 150 mm x 150 mm x 600 mm high in transparent front cover with 100 m2/m3 plate packing
Blower 1 ea.
Hot water pump 1 ea.
Heater 1500 W
Storage tank Stainless steel
Makeup water tank PVC
Temperature control unit to limit hot water temperature to not more than 50C
Measuring instruments
 - Humidity Portable hygrometer
 - Airflow rate Inlet orifice plate with inclined water manometer
 - Pressure drop Twin inclined water manometer (one for air flow rate) 0-450 mm x 1 mm graduation with multiple slope 1:10, 1:5, and 1:2 for pressure drop across the column
 - Water flow rate Variable area flow meter.
 - Sensors with digital display Temperature for water and air at inlets and outlets
Power supply 220 V, 1 Ph, 50Hz. Other power supply is available on request.
Part No. Part Name
TH 010 Flow digital display
MP 100-011A Differential pressure digital display instead of inclined water manometer.
TH 251-001 Bare column for preparing other experiment.
TH 251-002 Plate packing 70 m2/ m3
TH 251-003 Plate packing 150 m2/ m3
TH 251-004 Plate packing 200 m2/ m3
TH 251-005 Wooden packing 100 m2/m3
TH 251-006 Special packed column with additional data ports for wet bulb dry bulb and water temperatures at three levels.
TH 251-010 Anemometer 1-10 m/s instead of inlet orifice with inclined water manometer.
TH 251-050

Computer Interface

  • Sensors with computer interface unit for key data acquisition instead of analog data measuring instruments.
  • This includes computer interface unit with differential pressure and water flow sensors instead of rotameters.
Other optional equipment please contact manufacturer ([email protected])


Net (unassembled) Shipping Dimensions WxLxH 70 x 140 x 140 cm.
Net Weight Approx. 120 kg (w/o spare column).