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An air conditioning system, or a standalone air conditioner, provides cooling and/or humidity control for all or part of a building. Air conditioned buildings often have sealed windows, because open windows would work against the system intended to maintain constant indoor air conditions.
For instance, the BEE had announced in 2016 that it would be switching to ISEER (Indian Seasonal Energy Efficiency Ratio) to calculate star ratings for air conditioners. This is an evolution of the SEER method used in the US. ISEER allows manufacturers to make more efficient air conditioners for the Indian climate conditions. [2]
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
The broad usage allows for nearly any device intended for domestic use to be a home appliance, including consumer electronics as well as stoves, [5] refrigerators, toasters [5] and air conditioners. The development of self-contained electric and gas-powered appliances, an American innovation, emerged in the early 20th century.
The Unitary Products business group manufacture products in categories including air conditioners, air coolers, [7] commercial refrigerators, water coolers, and water dispensers. Voltas [8] is the largest air conditioning brand in India. It started manufacturing air conditioners in the 1960s under license from the Carrier Corporation. [9]
The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. [1] [2] Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating costs. The COP is used in thermodynamics.
This is a very common unit type. The rising cost of energy means that air conditioning manufacturers must develop a new generation of high-efficiency, cost-effective air conditioners for commercial buildings that meet or exceed a part-load efficiency standard of typically 18 IEER. The aim is to reduce energy use by 30% over current equipment.
In 2016, exclusively to India, Indian arm of South Korea's LG Electronics Inc started selling a TV that would repel mosquitoes. [53] It uses ultrasonic waves that are silent to humans but cause mosquitoes to fly away. [53] It was released on 16 June 2016. The technology was also used in air conditioners and washing machines. [53]