Cooling large factories with AHU systems and heat recovery.

Cooling large factories with AHU systems and heat recovery.

In the context of escalating energy costs and strict net emission (Net Zero) year 2026 regulations, large-area workshop cooling is more than just installing air conditioning. The solution is to reduce the number of air-conditioning-related problems AHU Combined Heat Recovery It's becoming the gold standard for modern factories.

1 Why does a large - scale factory need AHU and Heat Recovery?

For buildings with large spaces, high ceilings, and many heat generating machines, the local air conditioning system is often powerless or causes huge power expendables.

  • AHU (Air Handling Unit): It is a heat exchanger for air treatment (dust filtering, temperature tuning, humidity) with an extremely high capacity, responding to airflow for thousands of square meters.
  • Heat Recovery: Refers to technology that uses energy from flue gas to cool (or heat) incoming fresh air.

2 Operational principle: "Don't waste cold."

The breakthrough of this system is this : Thermal wheel or Table heat exchanger.

  1. Emission stream (Exhaust Air): Old and hot air from the factory is sucked out, and instead of being released directly, it goes through the heat retarder.
  2. Energy exchange: This exhaust will "transfer" the remaining cold to the incoming fresh air.
  3. Pretreated fresh gas: Fresh gas after being preliminarily cooled by the exhaust gas will enter AHU for further cooling before blowing into the workshop.

For example: If the outdoor temperature is 35°C, the heat retarder can help reduce it to 28°C before the air conditioner actually has to work. This greatly reduces the load on the Chiller system.

3. Outstanding benefits to the enterprise in 2026

📉 Operational cost savings from 20% – 40%

The energy re-utilization saves the Chiller/Outdoor Unit from overloading. In the long run, it's a huge savings on the plant's monthly electricity bill.

Optimize Air Quality Control (IAQ)

Different from the usual air conditioning around old air only, AHU incorporates Heat Recovery which allows the supply of 100% fresh air but still ensures cool temperatures. This helps to eliminate industrial odors, fine dust, and increases worker health.

Meet the Green Building & ESG standards

Year 2026, international partners prioritise green certified plants. Heat recovery systems help directly reduce the corporate carbon footprint.

4 Practical applications for various types of buildings

Type of factoryAdvantages of AHU + Heat Recovery
Electronic plantsControl humidity and absolute electrostatic resistance.
Pharmaceutical/FoodyardEnsure that the tank is clean and fresh gas is GMP - safe.
Garment/Skin shoe factoryRemove fabric odors, glue, and provide effective mass cooling.
Logistics warehouseMaintain a constant temperature for the goods at the lowest cost.

5. Considerations when installing systems AHU year 2026

For the system to perform at its highest level, the business should pay attention to:

  • AI - controlled integration: Use a CO2 concentration sensor to automatically adjust fresh gas flow, avoiding waste when the workshop is small.
  • Periodic maintenance: The filters and heat wheels should be cleaned to avoid pressure drop and bacteria.
  • Construction unit: An accurate heat load calculation capability is required to select the appropriate model AHU, avoiding power redundancy that wastes initial investment.

If you care about Factory cooling solutions Please contact us for further information

  • Free Solution Advice - The construction site is suitable to the work's size.
  • Equipment & package quotes.
  • Operation Guide

Contact information VRV Air Conditioning Joint Stock Company

Yours sincerely,
VRV Air Conditioning

Leave a comment

This is done at the source page. Open original page