Product category

Vapour Absorption Chillers

Pioneering Non-Electric Cooling with Thermal Energy

Vapour Absorption Chillers
Electric Peak Load Reduction
90%
Years Lifespan
25+
ODP & GWP Refrigerant
Zero
Installations Across India
100+

Vapour Absorption Chillers

Overview

In an era where industrial cooling demands are surging and electricity costs in India continue to fluctuate, BROAD India provides a transformative solution: the Vapour Absorption Chiller (VAC). Unlike conventional mechanical chillers that rely heavily on grid electricity, our absorption chillers utilize thermal energy - such as industrial waste heat, steam, hot water, natural gas, or even solar energy - to drive the refrigeration cycle. This paradigm shift in HVAC technology offers unprecedented energy efficiency, operational reliability, and environmental sustainability for large-scale commercial and industrial applications.

At the core of our technology is a highly efficient lithium bromide-water absorption cycle. Water acts as the natural, zero-ODP (Ozone Depletion Potential), and zero-GWP (Global Warming Potential) refrigerant, while lithium bromide serves as the absorbent. By completely eliminating the need for ozone-depleting CFCs and HCFCs, BROAD chillers align perfectly with India's stringent environmental regulations and corporate net-zero sustainability goals. Our chillers represent a critical step toward decarbonizing the cooling sector, which currently accounts for a massive portion of national energy consumption.

Why India's Industries are Shifting to Absorption Cooling

India's industrial sector, spanning textiles, pharmaceuticals, chemicals, and heavy manufacturing, generates vast amounts of low-grade waste heat. Traditionally exhausted into the atmosphere, this thermal energy can now be captured and monetized. A waste-heat-driven vapour absorption chiller recovers this otherwise lost energy to produce chilled water for process cooling or facility air conditioning, effectively delivering "free cooling" and drastically reducing the facility's overall energy intensity.

Furthermore, many regions across India face grid constraints and high peak tariffs. By deploying a BROAD non-electric chiller, facilities can slash their electrical peak demand load by up to 90%, freeing up critical power infrastructure for core manufacturing processes.

Unmatched Reliability and Intelligent Operation

BROAD Absorption Chillers are engineered with virtually no moving parts within the main refrigeration cycle, bypassing the mechanical wear and tear inherent in electric centrifugal or screw compressors. The result is a whisper-quiet, vibration-free operation with an extended lifespan often exceeding 25 years.

Key Features & Benefits

Non-Electric Operation

Operates without electricity, ideal for regions with high power costs or limited grid access

Environmentally Friendly

Uses water as refrigerant, no CFCs or HFCs, significantly reduced carbon footprint

Low Maintenance

Minimal moving parts, robust construction, ensuring a long and reliable service life

How it works

Cooling from heat, not electricity

Every BROAD absorption chiller runs the same lithium bromide–water cycle; only the heat source changes.

  1. 1

    Heat input

    Steam, hot water, exhaust gas or a gas/oil burner heats the generator. No compressor is needed.

  2. 2

    Generator

    The heat boils water vapour (the refrigerant) out of the lithium bromide solution.

  3. 3

    Condenser & evaporator

    The vapour condenses, then evaporates under deep vacuum, pulling heat out of the chilled-water circuit.

  4. 4

    Absorber

    Concentrated lithium bromide re-absorbs the vapour and the solution returns to the generator.

  5. 5

    Chilled water out

    Chilled water leaves for process cooling or air conditioning, with water as a zero-ODP, zero-GWP refrigerant.

Compare

Which model fits your site?

ModelCapacityEnergy sourceHighlight
Direct-Fired Vapour Absorption Chiller66–3,300 TRNatural Gas / Light Oil< 10 ppm NOxDetails
Waste-Heat-Driven Absorption Chiller100–3,300 TRSteam / Exhaust, 70–500°C+Zero Fuel CostDetails
Two-Stage Absorption Chiller30–3,300 TRGas / Steam / ExhaustCOP 1.1–1.4Details
Single-Stage Absorption Chiller100–3,300 TRHot water 70–95°C / Steam 0.1–1.5 kg/cm²COP 0.7–0.8Details
Multi-Energy Absorption Chiller100–3,300 TRExhaust / Hot Water + Gas / Oil / SteamSeamless energy switchingDetails
Packaged Absorption Chiller40–2,200 TRGas / Oil / Steam< 10 ppm NOxDetails

Industries We Serve

Proven track record delivering reliable cooling solutions across diverse sectors.

Petrochemical & Refinery

Utilize massive amounts of low-grade waste heat to produce chilled water for process cooling.

Pharmaceuticals

Ultra-reliable, precision cooling required for cleanrooms and batch processing without the high OPEX.

Food & Beverage

Stable, low-temperature cooling essential for food safety powered entirely by waste heat.

Frequently Asked Questions

How does a vapour absorption chiller save electricity?
Unlike conventional electric chillers that rely on power-hungry mechanical compressors, a vapour absorption chiller is driven by heat (like waste heat, steam, or natural gas). This eliminates the main compressor, slashing electrical peak demand by up to 90% and drastically reducing your facility's operational costs.
What heat sources can drive a BROAD absorption chiller?
BROAD chillers are highly versatile and can be driven by direct-fired natural gas or diesel, industrial waste heat (exhaust gas or jacket water), high or low-pressure steam, hot water, and even solar thermal energy. Multi-energy models can seamlessly switch between these sources.
What is the lifespan of a BROAD vapour absorption machine (VAM)?
Because there are virtually no moving parts in the main refrigeration cycle, a BROAD absorption chiller experiences almost zero mechanical wear and tear. With proper maintenance, these machines typically operate reliably for over 25 years.
Are absorption chillers environmentally friendly?
Yes, they are exceptionally green. They utilize pure water as the refrigerant and lithium bromide as the absorbent, completely eliminating ozone-depleting CFCs and HCFCs. Additionally, by recovering industrial waste heat, they significantly reduce fossil fuel consumption and carbon emissions.

Let’s engineer your next cooling project

Share your heat source and cooling load. Our engineers will size the right BROAD solution and estimate your savings.