Economic growth in developing countries and increased temperatures brought about by climate change is increasing the demand for air-conditioning worldwide. There is a huge growth potential for HFC-free cooling.
Global energy demand from air conditioners is expected to triple by 2050, although efficiency improvements could cut this demand in half. There are many examples of air-conditioning systems using natural refrigerants such as ammonia , carbon dioxide and hydrocarbons which have reduced global warming impacts. In some cases, facilities are opting for alternative technologies that do not use compression-cycle air-conditioning, such as desiccant and district cooling.
Greenhouse gas reductions achievable by switching to energy efficient natural refrigerant based domestic air-conditioners
Number of hydrocarbon domestic air-conditioners sold in India.
is the maximum allowable Global Warming Potential ( GWP ) of refrigerants used in mobile air-conditioning in Europe
There are various types of units used for domestic air-conditioning including portable units, packaged units, window-type units and ducted and ductless split units.
Commercial air-conditioning usually relies on the use of large chillers to distribute cooled water around a building. Cool technologies used in commercial air-conditioning usually involve ammonia for larger chillers and hydrocarbons and carbon dioxide for smaller chillers.
Transport air-conditioning refers to air-conditioning found within the cabin of cars, lorries, buses and trains. The transport sector is particularly problematic in terms of emissions due to high leakage rates.
Air conditioning is used in industrial applications to ensure correct operation of equipment that requires specific environmental conditions or to dispose of heat created by some industrial processes like welding. Data centres are core consumers of industrial cooling.