Cooling Tower Test Rig Manufacturer,Supplier and Exporter in India
Product Code : EL-RACLE-9361
Jlab Export is a leading Cooling Tower Test Rig Manufacturer,and suppliers in India
In a cooling tower, warm water falls through a rising stream of air and is cooled mainly by the evaporation of a small part of it. This test rig has a 250 x 250 mm tower, 1000 mm high, with an aluminium body and an acrylic frame. It is mounted on a mild steel square tube frame with an instrumentation panel.
Specifications
| Tower size | 250 x 250 mm |
| Tower height | 1000 mm |
| Material | Aluminium body with acrylic frame |
| Frame | Mild steel square tube, with instrumentation panel |
| Tests | Tower characteristic (KaV/L), make-up water flow rate, psychrometric end states for the energy balance |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Cooling Tower Experiments and Calculations
Students set the water and air flows and wait for steady readings. They record the water inlet and outlet temperatures, and the dry and wet bulb temperatures of the air entering and leaving. Range is water in minus water out. Approach is water out minus the wet bulb temperature of the entering air. Effectiveness is range divided by range plus approach. Repeating the test at other water to air ratios shows how each figure changes.
The air states are taken with a Psychrometer and plotted on the psychrometric chart. The enthalpy gained per kg of air, times the air flow found with a Handheld Anemometer Digital, should match the heat lost by the water. That closes the energy balance. The rise in humidity ratio gives the water evaporated and so the make-up flow. Senior students go on to find the tower characteristic KaV/L from the Merkel equation.
Frequently Asked Questions
What are range and approach in a cooling tower?
Range is the water inlet temperature minus the water outlet temperature. Approach is the water outlet temperature minus the wet bulb temperature of the air entering the tower. Effectiveness is the range divided by the sum of range and approach.
What is the tower characteristic KaV/L?
It is a dimensionless figure for how well the tower fill transfers heat and mass at a given water to air ratio. Students find it from the Merkel equation, integrating the enthalpy difference between the water and the air from the inlet to the outlet water temperature.
Why does a cooling tower need make-up water?
Some water evaporates to carry the heat away, a little leaves as drift, and some is drained to stop dissolved salts building up. The make-up flow replaces these losses. In the lab the evaporation part is found from the rise in humidity ratio of the air.
Can the water be cooled below the air wet bulb temperature?
No. Evaporative cooling stops when the air in contact with the water is saturated at the water temperature, and the wet bulb temperature marks that limit. A real tower therefore always runs with some approach.
How does this rig differ from the Water Cooling Tower Apparatus?
This rig has a 250 x 250 mm tower, 1000 mm high, with an aluminium body and acrylic frame. The Water Cooling Tower Apparatus is a forced draught counter flow unit in which a blower drives air up through mesh packing.
Other Evaporative Cooling Units
- Acrylic Cooling Tower (table-top working model)
- Air Washer Test Rig
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Last updated: 5 November 2026
