Principle of operation and characteristic variables of a wet cooling tower with forced ventilation Features - principle and characteristic variables of a wet cooling tower with forced ventilation - transparent, easily interchangeable cooling column with wet deck surface - 4 additional cooling columns available as accessory Learning objectives/experiments - thermodynamic principles of the wet cooling tower - changes of state of the air in the h-x diagram - determination of the cooling capacity - energy balances - calculation of process parameters, such as maximum cooling distance, cooling zone width etc. - in conjunction with the cooling columns WL 320.01-WL 320.04 -- comparison of different wet deck surfaces Specification [1] principle of a wet cooling tower with cooling column and forced ventilation [2] interchangeable cooling columns with different wet deck surfaces available as accessories [3] water circuit with pump, filter, valve and a nozzle as atomiser [4] three-stage heater with thermostat for water heating [5] radial fan for forced ventilation [6] throttle valve to adjust the air flow [7] demister unit at the outlet of the cooling columns minimises water loss [8] tank for additional water compensates for water loss [9] display of temperature, differential pressure, flow rate and humidity [10] software for data acquisition via USB under Windows 10 Technical data Cooling column - specific surface of the wet deck surface: 110m2/m3 - cross-section: 150x150mm Volumetric air flow measurement via orifice: Ø 80mm Heater, adjustable in three stages: - 500W - 1000W - 1500W Thermostat: switches off at 50°C Fan - power consumption: 250W - max. pressure difference: 4,3mbar - max. volumetric flow rate: 13m3/min Pump - max. head: 70m - max. flow rate: 100L/h Tank for additional water: 4,2L Measuring ranges - differential pressure: 0...10mbar (air) - flow rate: 12...360L/h (water) - temperature: 2x 0...50°C, 3x 0...100°C - rel. humidity: 10...100% 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 230V, 60Hz, 3 phases UL/CSA optional LxWxH: 1100x470x1230mm Weight: approx. 120kg
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