Cooling System Finder: Which One Does Your Plant Need?
Answer five short questions about your process, load, water and site, and see whether a chiller, a cooling tower, a heat exchanger, HVAC or ventilation fans fit your plant, with the pages to read next.
Which cooling system fits which job
Industrial chiller
Choose a chiller when a process or a machine needs water held at a set temperature: dyeing and washing, injection moulding, extrusion, food and beverage, pharmaceutical batches. The load in TR comes from the water flow and the temperature drop: kW = flow in kg/s × 4.19 × drop in °C, and 1 TR = 3.517 kW. Whether it should be air cooled or water cooled depends on the load, the running hours, water supply and space.
Cooling tower
A cooling tower rejects heat to the outside air by evaporating a small part of the water. It serves a water-cooled chiller’s condenser, or cools process water directly. It is sized from the heat it has to reject — the chiller’s cooling load plus the compressor heat — the water range and the local wet-bulb temperature, and it needs water treatment to stay efficient.
Heat exchanger
A heat exchanger moves heat between two liquids without mixing them, for heat recovery, oil cooling or separating a clean circuit from a dirty one. Plate units suit clean fluids and a close temperature approach; shell-and-tube units suit dirty water and higher pressure.
Industrial HVAC
HVAC controls the temperature and humidity of the air in a building or production floor, for people or for products. Large floors usually run on chilled water from a central chiller feeding air handling units; smaller rooms can use packaged units.
Ventilation and exhaust fans
When a hall is hot or full of fumes but the air does not need to be cooled, exhaust fans, roof extractors and turbine ventilators are the answer. They are sized from the air changes per hour the space needs.
Have this ready before you ask for a quotation
- What you need to cool and the process it serves
- Water flow and the two temperatures, or the room size
- Running hours per day
- Whether reliable water and space for a tower exist
- Factory location and the power supply
Frequently asked questions
What is the difference between a chiller and a cooling tower?
A chiller makes cold water with a refrigeration cycle and delivers it to the process. A cooling tower takes heat away from water by evaporation and cannot make water colder than the outside wet-bulb temperature. In a water-cooled plant the tower carries the chiller’s heat away; the two work together.
Do I need a cooling tower with every chiller?
No. An air-cooled chiller rejects its heat to the air through its own fans and needs no tower. A water-cooled chiller needs a cooling tower, condenser pumps and water treatment.
How do I know what size I need?
For process cooling, multiply the water flow in kg/s by 4.19 and by the temperature drop in °C to get kW, then divide by 3.517 for TR. For rooms and halls the size depends on the floor area, the heat sources and the people. Send what you know and MHM confirms the size in writing.
Does the finder store my answers?
No. The questions run in your browser. Your answers go to MHM only if you choose to send them on WhatsApp or by e-mail at the end.
Get a written quotation
Prefer to talk it through? Send what you know about the plant and an MHM engineer replies with a written recommendation.
- The type of system and why
- Size in TR or airflow, stated in writing
- Equipment and installation as separate lines
- MHM Machineries BD Limited
846, East Shewrapara, Mirpur, Dhaka-1216, Bangladesh
Open in Google Maps - +880 1767-004433 · +880 1300-806868
WhatsApp +880 1767-004433 - sales@mhmmachineries.com
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