What Is a Vapour Absorption Machine?

What Is a Vapour Absorption Machine?

BROAD India Engineering Team
August 6, 2026
3 min read
VAM

What Is a Vapour Absorption Machine?

A vapour absorption machine (VAM) is a non-electric refrigeration system that uses heat instead of electricity - perfect for turning waste energy into clean cooling.

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Types of Systems That Fall Under VAMs

  • - Vapour Absorption Chillers (VACs)
  • - Steam Absorption Chillers
  • - Hot Water Absorption Chillers
  • - Exhaust Absorption Chillers
  • - Direct-Fired Vapour Absorption Chillers

How Does a VAM Work?

  1. Cooling Phase: Heat evapourates the refrigerant.
  2. Absorption Phase: Lithium bromide or ammonia absorbs the vapour.
  3. Separation Phase: Heat separates the refrigerant again.
  4. Recycling Phase: Condensed refrigerant restarts the cycle.

Key Advantages of Vapour Absorption Machines

  • Lower Energy Use: Runs on heat, not electricity.
  • Eco-Friendly: No synthetic refrigerants or ozone damage.
  • Quiet Operation: Minimal mechanical noise.
  • Cost Savings: Low bills, long lifespan.
  • Low Maintenance: Fewer parts to repair or replace.

Industries Benefiting from VAMs

  • - Power Plants (Turbine Inlet Cooling)
  • - Manufacturing Facilities (Waste Heat Use)
  • - Malls, Offices, Hotels (Low-noise Cooling)
  • - District Cooling Systems

The Takeaway: Cool Smarter with VAMs

VAMs help businesses reduce energy use, emissions, and costs by transforming available heat into sustainable cooling. With BROAD absorption chillers, your operations stay green, quiet, and efficient.

Frequently Asked Questions

Need Help With Your Cooling System?

BROAD India's engineering team can assess your facility's cooling requirements and recommend the most energy-efficient solution — from vapour absorption chillers to waste heat recovery systems.

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What Is a Vapour Absorption Machine? | BROAD India