As energy prices soar and sustainability becomes critical, vapour absorption chillers (VACs) are replacing traditional, energy-hungry systems across industries.

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How Do Vapour Absorption Chillers Work?

Instead of using a compressor, VACs operate through a thermodynamic cycle powered by heat:

  • - Heat from natural gas, steam, or diesel turns water into vapour.
  • - Lithium bromide absorbs the vapour.
  • - More heat separates the mixture, restarting the cycle.

Why They’re Better Than Traditional Chillers

  • Lower Electricity Bills: Uses waste heat, not grid electricity.
  • Environment-Friendly: Reduces emissions and supports decarbonisation.
  • Low Maintenance: No moving parts, fewer breakdowns.
  • Quiet Operation: Ideal for hospitals and offices.

VAMs vs VACs – What’s the Difference?

VAMs: General term for all absorption-based systems. VACs: Specialized for chilled water cooling only.

Types of Non-Electric Chillers

  • - Steam Absorption Chillers
  • - Hot Water Chillers
  • - Exhaust Absorption Chillers
  • - Flue Gas Recovery Chillers
  • - Direct Fired Vapour Absorption Chillers

Where You'll Find These Chillers

  • - Factories and power plants
  • - CHP/CCHP systems
  • - Green-certified commercial buildings
  • - Sites using BROAD non-electric chillers

Final Thoughts

If your business wants to reduce energy costs and support sustainability, vapour absorption chillers are the future of efficient cooling. Choose BROAD for smart, silent, and green HVAC systems.