Absorption Heat Pumps

Industrial Waste Heat Recovery with BROAD Absorption Heat Pumps

In many industrial operations and power plants across India, vast quantities of low-grade thermal energy - typically between 15°C and 50°C - are continuously rejected into the atmosphere via cooling towers or discharged into water bodies. This represents a staggering loss of potential energy. The BROAD Absorption Heat Pump (AHP) is an advanced thermal energy solution engineered precisely to capture this untapped resource. By recovering low-grade waste heat and "pumping" it to a higher, usable temperature, our absorption heat pumps provide high-temperature water for district heating, boiler feedwater preheating, and critical industrial processes.

Unlike conventional mechanical heat pumps that rely on electricity-hungry compressors, the BROAD Absorption Heat Pump utilizes a thermal compressor driven by a heat source - such as steam, high-temperature hot water, exhaust gas, or natural gas. This means the system elevates energy efficiency far beyond traditional boiler-based heating methods, delivering an extraordinary Coefficient of Performance (COP) between 2.0 and 3.0. In practical terms, this translates to generating two to three times the heating output per unit of driving energy consumed.

Transforming Thermal Power Plants and Heavy Industry

For thermal power plants in India, energy efficiency dictates profitability. By deploying a BROAD Absorption Heat Pump, power plants can recover the massive latent heat lost in condenser cooling water. This recovered heat is then used to preheat the boiler feedwater or supply a district heating network. The result is a direct 15% to 20% reduction in coal or fuel consumption while maintaining the same electrical output, fundamentally improving the plant's heat rate and extending the operational lifespan of the boilers.

In the broader industrial sector - including textiles, chemicals, paper mills, and food processing - facilities generate massive volumes of low-temperature effluent and exhaust gases. A BROAD AHP captures this waste heat to produce process heating water up to 90°C (194°F). This completely offsets or eliminates the need for fossil-fuel-fired boilers, slashing fuel costs and rapidly accelerating the facility's return on investment. Some industrial applications have documented up to 41% total energy savings following the integration of our heat pump technology.

A Zero-Emission Pathway to Decarbonization

As India accelerates its commitment to reducing industrial emissions, the shift away from coal-fired and oil-fired boilers is imperative. The BROAD Absorption Heat Pump offers a clean, zero-emission alternative that aligns with the strictest environmental standards. Because the system utilizes a closed-loop lithium bromide-water absorption cycle, it uses water as the natural refrigerant, entirely eliminating ozone-depleting CFCs and HFCs.

Furthermore, BROAD's heat pumps are engineered for unparalleled longevity and reliability. Without the heavy moving parts of mechanical compressors, the system operates with minimal vibration and noise. Equipped with robust corrosion-resistant heat exchangers, intelligent anti-crystallization controls, and continuous automatic vacuum purging, a BROAD AHP guarantees stable, uninterrupted heat delivery even under fluctuating ambient conditions.

Explore the engineering advantages and proven global applications of our absorption heat pump technology below.

BROAD Absorption Heat Pump
Thermal-Driven Heat Transfer Technology
Unlike conventional electric heat pumps, BROAD's absorption technology operates without CFCs or HFCs, instead using environmentally benign water as the refrigerant, ensuring clean energy use with a low carbon footprint.

Engineering Highlights & Advantages

Thermal Lift Efficiency

Achieves Heating Coefficients of Performance (COP) between 2.0–3.0 - delivering two to three times more heat per unit thermal input compared to conventional boilers, and enabling payback through energy savings.

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Eco-Friendly Refrigerant

Utilizes water and lithium bromide, a non-CFC, non-HFC refrigerant pair, ensuring compliance with global environmental regulations.

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Robust Construction

Incorporates corrosion-resistant heat exchangers and vacuum stability safeguards, along with automatic purge, crystallisation prevention systems, and intelligent control modules for long-term, trouble-free operation.

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Versatile Thermal Inputs

Accepts low-temperature waste heat sources (surface or cooling water at 59–122 °F) and combines with higher-grade heat (steam, hot water, exhaust gas) for flexible deployment across industrial and municipal systems.

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Uninterrupted Heating

Offers stable heat delivery even under ambient or supply fluctuations, without requiring back‑up electric heating - unlike traditional electric heat pump systems.

Global Deployment & Success Stories

BROAD Absorption Heat Pumps are deployed globally across power plants, industrial parks, and municipal heating stations in countries including South Korea, Denmark, Austria, China, and Thailand.

These systems excel in challenging industrial environments recovering waste heat from dyeing mills, breweries, power plant cooling loops, and boiler exhausts to produce high-temperature water between 140–190 ºF for immediate use.

Thailand Paper Mill

Recovered 3.3 MW of cooling water heat

South Korean Power Station

Converted 48 MW of waste heat for district heating

Result: Up to 41% savings in heating energy and rapid ROI

Proven Applications & Performance

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Thermal Power Plant Systems
Achieves 15–20% energy-saving by upgrading waste cooling water (59–86 °F) to preheat boiler feedwater using steam drive

Example: Thai paper factory deploying a 3.3 MW system, and South Korea's 48 MW plant for district heating

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Industrial Process Heating
Delivers up to 41% energy savings by recycling low-temperature waste streams (86–122 °F) across various industries

Example: Korean eco-park, Austrian district heating system, Chinese brewery - dyeing, breweries, steel finishing, oil field operations

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Exhaust-Driven Heat Recovery
Delivers 8–15% energy efficiency gains by capturing boiler, turbine, or chiller exhaust (140–356 °F) to produce heating water at ~185 °F

Example: Biomass plants (Denmark), event centers (Beijing National Games Centre), and energy plants in South Korea

Unmatched Performance & Reliability

With its unmatched ability to stabilize heat output even in fluctuating load conditions, BROAD Absorption Heat Pumps redefine sustainable heating by merging environmental responsibility with robust engineering.

2-3x
Efficiency Multiplier
vs conventional boilers
140-190°F
Output Temperature
High-grade heat production
0%
Harmful Refrigerants
Water-based, eco-friendly

Ready to Transform Your Heating System?

Discover how BROAD Absorption Heat Pumps can deliver unprecedented energy savings and environmental benefits for your facility.

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BROAD Air Conditioning India Pvt. Ltd. (BROAD India) is a subsidiary of BROAD Group.

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