In the world of cold storage, temperature often takes center stage. But according to Eldridge, a leading provider of industrial ventilation and dehumidification solutions, the true enemy is moisture — an invisible force that undermines safety, efficiency, and profitability in temperature-controlled facilities across the nation.

Cold storage facilities typically operate between 0°F and 40°F, but these low temperatures don’t create humidity — they amplify it. Warm, moist air infiltrating a cold environment can result in three major problems:

• Coil Frosting: Frost accumulates on coolingcoils, insulating them and drastically reducing efficiency.
• Icing & Fogging Hazards: Rapid flash-freezing and poorvisibility create major safety risks for workers and equipment.
• Energy Waste: Frequent defrost cycles andlatent heat removal drive up operational costs.

Eldridge engineers are using psychrometric charts to model and control air’s thermodynamic properties — transforming the way industrial facilities manage humidity.

By plotting dry-bulb, wet-bulb, and dew point temperatures, engineers can visualize when and where condensation or frost will form, then design ventilation and dehumidification systems that keep air safely below its dew point.

In one recent case study, Eldridge modeled outside air at 94°F dry-bulb / 78°F wet-bulb and compared it to a 35°F cold storage environment. The resulting 90-grains-per-pound moisture differential guided precise sizing of desiccant dehumidifiers, preventing frost formation and ensuring safe, energy-efficient operations.

The psychrometric chart isn’t just a classroom diagram — it’s becoming a blueprint for modern cold-chain management. By understanding air behavior in advance, facility managers can identify high-risk zones, reduce maintenance cycles, and protect workers before hazards occur.

Established in 1946 as L.C. Eldridge Sales Co., Ltd., Eldridge is a leading provider of technical applications in ventilation and noise control. The Houston-based company designs and implements solutions that address air volume control, process cooling and heating, air filtration, dehumidification, and airborne noise challenges across a wide range of industries — including industrial, marine, chemical/process, power, natural gas pipeline, utility, mining, and municipal sectors.

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