Industrial evaporative cooling lowers air temperature by evaporating water into a moving air stream. It uses no compressor and no refrigerant gas — only water and a fan — which is why it consumes roughly 60–80% less electricity than conventional DX air conditioning of comparable airflow. It is the standard solution for large, high-ceiling or partly open industrial spaces where sealed air conditioning is impractical.
Performance depends on how dry the outside air is, not how hot it is. This guide explains where evaporative cooling performs best across the Balkans, the Levant and the Gulf, where it does not, how it compares with DX systems, and how we supply and support projects from Türkiye.
What Is Industrial Evaporative Cooling?
An industrial evaporative cooler draws hot outside air through a wetted cellulose pad. Water evaporating from the pad absorbs heat from the air, and the air leaving the unit is cooler and more humid. A fan then distributes that air into the space. There is no compressor, no refrigerant circuit and no sealed room requirement — the process runs on water and fan power alone.
The physics is straightforward: evaporation consumes energy, and that energy comes from the air itself. This is the same effect that makes you feel cold stepping out of a pool. In an industrial unit the effect is concentrated across a large pad surface and driven by a high-volume fan.
Because the system continuously introduces outside air rather than recirculating it, the space receives a full air change many times per hour. In welding shops, foundries, plastic injection halls and commercial kitchens this matters as much as the temperature drop — fumes, heat and odour are pushed out rather than mixed around.
The trade-off is that the supply air carries added moisture. In a sealed office this would be a problem; in a high-ceiling production hall with open doors or ridge ventilation it is not, because the moist air leaves the building continuously. Correct exhaust design is therefore part of the system, not an afterthought.
Where Evaporative Cooling Works Best — and Where It Does Not
Evaporative cooling performance is governed by the wet-bulb depression — the gap between dry-bulb and wet-bulb temperature. The drier the air, the larger the possible temperature drop. A 45 °C day in Riyadh yields a far greater drop than a 40 °C day in coastal Doha, because the Riyadh air is dry and the Doha air is not.
This is the single most important thing to establish before specifying a system, and it is where most disappointing installations originate: the equipment was fine, the climate was misread. The table below shows indicative supply-air temperatures at typical summer design conditions, assuming a 100 mm cellulose pad at 85% saturation efficiency.
| Location | Typical summer design (dry-bulb / wet-bulb) | Indicative supply air | Suitability |
|---|---|---|---|
| Riyadh, Saudi Arabia | 44 °C / 19 °C | ≈ 23 °C | Excellent |
| Baghdad, Iraq | 46 °C / 21 °C | ≈ 25 °C | Excellent |
| Amman, Jordan | 36 °C / 18 °C | ≈ 21 °C | Excellent |
| Cairo, Egypt | 38 °C / 21 °C | ≈ 24 °C | Very good |
| Belgrade · Sofia · Bucharest | 34 °C / 21 °C | ≈ 23 °C | Good |
| Skopje · Tirana | 36 °C / 20 °C | ≈ 22 °C | Very good |
| Coastal Gulf (Dubai, Doha) — peak humid months | 40 °C / 30 °C | ≈ 32 °C | Limited — spot cooling only |
Indicative values calculated from design conditions at 85% saturation efficiency; they are not performance guarantees. Actual results depend on local meteorological data, air change rate, internal heat gain and exhaust design. We size every project against site-specific data.
In humid coastal climates during peak summer months, evaporative cooling delivers only a modest temperature drop and adds moisture the building must remove. For those sites we recommend DX or chilled-water solutions instead, or evaporative cooling limited to spot cooling at specific workstations. We would rather lose the order than supply a system that will disappoint on site.
Evaporative vs. Conventional DX Cooling
The two technologies solve different problems. DX air conditioning cools and dehumidifies a sealed volume; evaporative cooling cools and ventilates an open or high-volume space. For a 10,000 m² production hall with loading doors that open all day, sealing the building to make DX viable usually costs more than the cooling itself.
| Criterion | Conventional DX air conditioning | Industrial evaporative cooling |
|---|---|---|
| Electricity consumption | High — compressor driven | 60–80% lower |
| Open or semi-open areas | Very poor — cooled air escapes | Full effectiveness |
| Air quality | Recirculated air | Continuous fresh outside air |
| Refrigerant gas | HFC — F-Gas regulated | None — water only |
| Large-area coverage | Dead zones likely | Uniform air distribution |
| Capital cost | High | Low to moderate |
| Humid coastal climates | Effective | Limited |
| Sealed clean rooms, offices | Required | Not suitable |
An evaporative system pushes fresh air in; the building must let the same volume out. Ridge vents, wall louvres or powered exhaust should be sized for at least 80% of supply airflow — 100% is ideal. Under-sized exhaust is the most common cause of poor results: the hall pressurises, air change collapses and the temperature drop never materialises.
Product Range and Technical Data
We supply and install the FORM Fes industrial evaporative range, manufactured in Türkiye. Units cover airflow from roughly 18,000 to 45,000 m³/h per module, with 100–150 mm cellulose pads, direct-drive axial fans and galvanised or polymer housings. Multiple units are combined to cover large halls.
| Parameter | Typical range |
|---|---|
| Airflow per unit | 18,000 – 45,000 m³/h |
| Pad type and depth | Cellulose, 100 – 150 mm |
| Saturation efficiency | 80 – 90% |
| Fan drive | Direct-drive axial |
| Housing | Galvanised steel or polymer |
| Water connection | Float-fed tank with drain and bleed-off |
| Control | Local panel or BMS-compatible |
Unit selection is made per project. Send us the hall dimensions, target air change rate, internal heat sources and local design conditions, and we return a unit count, layout and exhaust recommendation.
Typical Applications
Evaporative cooling suits large-volume spaces with high internal heat gain and tolerance for fresh-air humidity: manufacturing halls, warehouses, workshops, greenhouses, poultry and livestock buildings, sports halls and commercial kitchens.
- Manufacturing and process halls — plastic injection, textile, metal forming, foundries. High machine heat load, doors frequently open.
- Warehouses and logistics centres — large footprint, low occupancy density, DX economically unviable.
- Workshops and maintenance bays — welding and grinding fumes require air change, not recirculation.
- Greenhouses and agricultural buildings — added humidity is a benefit rather than a drawback.
- Sports halls — high occupancy, high ventilation requirement.
- Commercial kitchens — heat and odour extraction combined with make-up air.
Supply and Project Support from Türkiye
We supply projects across the Balkans, the Levant, North Africa and the Gulf from Istanbul. Türkiye's position shortens lead times relative to Far East sourcing, equipment is CE conformant, and spare parts ship from stock rather than on a container schedule.
For contractors and distributors we work in one of two ways. Either we supply equipment with a sizing study, layout drawing and commissioning guidance for your own installation team; or we join the project earlier, review the building and produce the full airflow and exhaust design before equipment is selected.
What we need from you to quote: hall dimensions and height, roof and wall construction, existing ventilation openings, main internal heat sources, target indoor condition, and the nearest city for design weather data. A layout drawing or even a clear set of photographs shortens the process considerably.
We work with mechanical contractors and equipment distributors in Serbia, Bulgaria, Romania, North Macedonia, Albania, Kosovo, Iraq, Jordan, Egypt, Libya and the Gulf states. If you are evaluating a territory partnership rather than a single project, say so in your first message and we will route it accordingly.
Send us your hall — we will size the system
Dimensions, heat sources and your nearest city are enough for a first-pass unit count and layout.
Technical consultation by phone or WhatsApp is free of charge · +90 216 344 48 19
Frequently Asked Questions
How much electricity does industrial evaporative cooling actually save?
Compared with DX air conditioning of comparable airflow, an evaporative system typically uses 60–80% less electricity, because it has no compressor — only a fan and a small water pump. The exact saving depends on airflow, fan efficiency and how many hours per year the system runs.
Does evaporative cooling work in the Gulf?
It depends on the site. Inland Gulf locations such as Riyadh and Baghdad are very dry in summer and are excellent applications. Humid coastal locations such as Dubai and Doha have high wet-bulb temperatures in peak months, which limits the achievable temperature drop; there we recommend DX or chilled water, or evaporative cooling restricted to spot cooling.
How much can the air temperature drop?
The drop is a function of the wet-bulb depression and pad efficiency. At 85% saturation efficiency with 44 °C dry-bulb and 19 °C wet-bulb air, supply air of roughly 23 °C is achievable. In a milder Balkan summer at 34 °C dry-bulb and 21 °C wet-bulb, expect roughly 23 °C supply air but a smaller drop. Site-specific design data is required for any commitment.
Does the building need to be sealed?
No — the opposite. Evaporative cooling requires continuous air change, so the building must have exhaust openings sized for at least 80% of supply airflow, with 100% being ideal. Ridge vents, wall louvres or powered exhaust fans all work. A sealed building is the wrong application for this technology.
How much water does a unit consume?
Consumption depends on airflow and how dry the air is, since water use is directly proportional to the evaporation actually taking place. A bleed-off is also required to prevent mineral concentration in the tank. We calculate expected consumption per project and include it in the sizing study.
What maintenance does the system need?
Pad cleaning or descaling at the start and end of each cooling season, tank cleaning, and periodic checks of the float valve, distribution holes and pump. In hard-water regions a scale-control product or feed-water treatment device extends pad life considerably.
Do you supply outside Türkiye, and how does support work?
Yes. We supply projects across the Balkans, the Levant, North Africa and the Gulf from Istanbul, with CE-conformant equipment and spare parts held in stock. Support is provided remotely for sizing, layout and commissioning; on-site attendance can be arranged for larger projects.
Can evaporative cooling be combined with existing air conditioning?
Yes, and in mixed buildings this is common: evaporative cooling handles the large production hall while DX serves sealed offices, laboratories or control rooms. The two must be zoned separately so that humid supply air does not migrate into the conditioned spaces.
Talk to an industrial cooling supplier, not a catalogue
Tell us the building and the climate. If evaporative cooling is the wrong answer for your site, we will say so and point you to the right one.
Erdinç Klima · Ataşehir, Istanbul, Türkiye · Supplying the Balkans, the Levant, North Africa and the Gulf