State-of-the-art Engineering Equipment

HT-405 | Bench Top Cooling Tower

  • Principle of a wet cooling tower with cooling column and forced ventilation
  • Interchangeable cooling columns with different wet deck surfaces available as accessories
  • Water circuit with pump, filter, valve and a nozzle as atomiser
  • Three-stage heater with thermostat for water heating
  • Radial fan for forced ventilation
  • Throttle valve to adjust the air flow
  • Demister unit at the outlet of the cooling columns minimises water loss
  • Tank for additional water compensates for water loss
  • Digital measurements of temperature of both air and water, flow rate of both air and water, humidity, and differential pressure
  • LxWxH: 1100x470x1230mm
  • Weight: approx. 120kg
Technical Specification
Wet cooling towers are a proven method of closed-circuit cooling and heat dissipation. Typical areas of application are: air conditioning, heavy industry and power plants. In wet cooling towers the water to be cooled is sprayed over a wet deck surface. Water and air come into direct contact in the counterflow. The water is cooled by convection. Some of the water evaporates and the evaporation heat removed further cools down the water. It examines the main components and principle of a wet cooling tower with forced ventilation. Water is heated in a tank and transported by a pump to an atomiser. The atomiser sprays the water to be cooled over the wet deck surface. The water trickles from the top to the bottom along the wet deck surface whilst air flows from the bottom to the top. The heat is transferred directly from the water to the air by convection and evaporation. The evaporated water volume is recorded. The air flow is generated by a fan and adjusted using a throttle valve. The cooling column is transparent allowing clear observation of the wet deck surface and the trickling water. Interchangeable cooling columns enable comparative studies. All-important process parameters are recorded (volumetric air flow rate, temperatures of air and water, air humidity, water flow rate). The measured values can be read on digital displays.
Data Acquisition Software
  • Instrumented and computer controlled via USB / Ethernet interface / WiFi to record related calculations.
  • The data are stored in a data base either in file format supported by third party software.
  • Microcontroller based data acquisition software (Computer not included)
  • Data logging & digital display of parameters
Cooling column
  • specific surface of the wet deck surface: Approx. 110m2/m3
  • cross-section: 150x150mm
Heater, adjustable in three stages:
  • 500W
  • 1000W
  • 1500W
  • power consumption: 250W
  • volumetric flow rate: 13m3/min
  • flow rate: 100L/h
Measuring ranges
  • differential pressure: 0…10mbar (air)
  • flow rate: 12…360L/h (water)
  • temperature: 2x 0…50°C, 3x 0…100°C
  • humidity: 10…100%