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Demonstrating the feasibility of NH₃ chillers in tropical climates

2009-10-13 - ammonia21.com

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A project demonstrating the feasibility of ammonia chillers in tropical climates and providing training in handling ammonia systems is currently being implemented in Mauritius. The replacement of existing CFC with ammonia chillers in two public buildings will save 38,000 tonnes CO₂ equivalent.

Demonstrating the feasibility of NH3 chillers in tropical climates

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Download the project information sheet

Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH in association with the Ministry of Environment in Mauritius is currently implementing a project that aims to convert chillers in large public buildings from fluorinated to ammonia refrigerant and provide training for engineers and service technicians on operation and maintenance of ammonia systems.

The €1.2 million project that is set for completion by the end of the year is funded by the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety

The project

The project assists the Ministry of Environment of Mauritius with information and technical assistance to facilitate the decision making in favour of introducing natural refrigerants in central air-conditioning systems through:

Installation of ammonia chillers in 2 government buildings: Two government buildings in Mauritius were selected to replace the existing CFC-12 and CFC-11 chillers with ammonia chillers in order to demonstrate their energy efficiency and safety. The two existing plants are annually emitting up to 100% of their refrigerant charge (420kg and 270kg respectively) with the extremely high global warming potentials of 10,600 (CFC-12) and 4,680 (CFC-11). The conversion of the air-conditioning systems, therefore, leads to the permanent avoidance of 38,000 tonnes CO₂ equivalent for an estimated operating time of 15 years and further reduces electricity costs for the building operator.

Provision of training in handling ammonia systems: The project will provide intensive technical and safety training to the engineers and service technicians to create confidence in handling the new ammonia systems. The training courses are held at the premises of European manufacturer providing the sytems and will ensure that maintenance, servicing and repairing procedures are done according to highest safety standards.

Provision of advice on financing opportunities for natural refrigerants: Under the project, the Ministry of Environment is advised on possible co-financing opportunities as an incentive for further investment in this sector through the Clean Development Mechanism (CDM).

Replicating the project

Designed to demonstrate the feasibility of ammonia chillers in a tropical climate and the associated enhanced energy efficiency, the project may be replicated elsewhere and thus facilitate the transfer of this environmentally friendly technology to other countries in the region.