Ammonia Absorption Refrigeration Plant (AARP) ideally fits into the concept of Integrated Energy Systems such as Cogeneration involving combined generation, Heat refrigeration & Power (CHRP Plants) on various fuels like Biomass, Coal, Natural Gas, Heavy Oil etc.
AARP is an attractive choice for refrigeration on Low-cost steam / heat produced from fuels like biomass / coal / heavy fuel oil / natural gas or renewable sources like solar, geothermal etc. Due to increasing cost of petroleum fuels, the majority of the process industries are rapidly shifting their focus towards steam generation on Agrofuels / coal to bring down cost of steam generation. AARP working on low grade waste heat easily substitutes electricity-driven energy-consuming Refrigeration Compressors which also need high downtime for maintenance.
AARP being energy conservation system converting waste heat into useful refrigeration; it earns Carbon Credits, reduces CO2 emission tax and promotes sustainable development initiatives through energy conservation.
AARP uses Ammonia which is known to be one of best ecofriendly refrigerants as it replaces hazardous ozone depleting CFC Refrigerants.
AARP has wide operating range of +5°C to –60°C.
It has high reliability and very low maintenance because it has no moving parts except a dependable centrifugal pump. It has long life of at least 25 years. Many AARPs are in operation for more than 40 years.
The unique and most exclusive technical feature of AARP is it can be operated on air cooled Heat rejection. This is great boon for water starved countries. No other absorption technology has this advantage. Therefore, worldwide and particularly in India AARP has very large potential.
AARP with air cooled heat rejection systems can be of two types
Type 1 AARP with air cooled heat rejection – Using Air cooled remote radiators for heat rejection. The heat from cooling water is rejected in Air cooled fan assisted heat exchangers. The condenser and absorber of AARP is water cooled.
Type 2 AARP with air cooled heat rejection – Ammonia condenser is direct Air Cooled and Absorber is cooled by air cooled remote radiator as in type 1.