Maintaining comfortable indoor conditions in large manufacturing facilities and distribution centers can be a significant operational challenge. During hot weather, heat from production equipment, lighting, solar gain, and frequent door openings can accumulate inside large buildings.

Traditional air conditioning can provide effective cooling, but it may require substantial electrical energy when applied to large industrial spaces.

For facility and operations managers, this creates a practical question: how can indoor temperatures be controlled while limiting energy use and maintaining suitable conditions for employees and industrial processes?

The Impact of Heat in Warehouses and Factories

High indoor temperatures can affect both working conditions and production processes. Employees working in hot environments may experience greater thermal discomfort, while certain materials, equipment, and processes can also be sensitive to excessive heat.

The effect varies considerably by industry. Packaging operations may have different temperature and humidity requirements than metalworking, food production, or warehousing. An effective cooling strategy therefore needs to take the building, internal heat loads, and process requirements into account rather than relying on a single standard solution.

Rethinking Temperature Regulation With Evaporative Cooling

One alternative to compressor-based mechanical cooling is evaporative cooling. The principle is straightforward: when water evaporates, it absorbs heat from the surrounding air and lowers its temperature.

In a direct evaporative system, warm outdoor air passes through wetted media. This cools the air but also increases its moisture content. That additional humidity can limit the suitability of direct systems in facilities or processes where moisture levels need to be controlled.

Evaporative cooling generally requires much less electrical energy than conventional compressor-based air conditioning because the cooling effect is created primarily through water evaporation rather than mechanical refrigeration.

Why Two Stage Technology Makes a Difference

Two-stage indirect and direct evaporative cooling reduces one of the main limitations of conventional direct systems. In the first stage, fresh outdoor air is cooled indirectly using circulating water and a heat exchanger. No moisture is added to the supply air during this part of the process.

In the second stage, direct evaporation lowers the air temperature further. Systems developed by Oxycom use this two-stage approach to achieve lower supply air temperatures while adding up to 70% less moisture than conventional direct evaporative cooling systems.

According to the manufacturer, the technology can also reduce cooling energy consumption by up to 90% compared with traditional air conditioning. The system operates with fresh, filtered outdoor air, combining cooling with continuous ventilation.

Factors to Consider When Evaluating Industrial Cooling

Selecting a cooling system for a manufacturing or logistics facility requires more than comparing cooling capacity alone. Several factors should be assessed together:

• Internal heat load: Production equipment, lighting, solar gain, and workforce density all affect the amount of cooling required.
• Humidity requirements: Materials and production processes may determine how much additional moisture can be tolerated.
• Outdoor climate: Temperature and relative humidity influence the performance of evaporative cooling and should be considered during system design.
• Existing infrastructure: Current ventilation systems, air handling units, and ductwork may impact how a new cooling solution can be integrated.

For facilities with existing mechanical cooling equipment, evaporative technology can also be used for pre-cooling, reducing the cooling load placed on conventional systems.

Building a More Efficient Cooling Strategy

Industrial climate control is becoming an increasingly important part of energy management in manufacturing and logistics facilities. Large spaces require substantial airflow and cooling capacity, making the efficiency of the chosen system particularly relevant.

Two-stage evaporative cooling offers an alternative approach by combining fresh-air ventilation with lower energy use and a smaller increase in humidity than direct evaporative systems. Whether it is suitable for a specific facility depends on factors such as climate, heat load, building design, and process requirements.

For supply chain and manufacturing operations, evaluating those factors together provides a more useful basis for investment decisions than focusing on cooling capacity or equipment cost alone.