The evolution of air conditioning over several centuries is quite interesting.

January 15, 2021 Frozen

It all started with the construction design with windows facing away from the sun or to have wind towers to catch and circulate the prevailing breezes. Then came the era of circulating the cold water through the walls or blowing air through ice water soaked cotton sheets to reduce the temperatures.
The big breakthrough was the electricity. In 1902, a 25 years old New York based engineer Willis Carrier invented the first modern air conditioning system. The mechanical unit, which sent air through water cooled coils, was not aimed at human comfort, however it was designed to control humidity in the printing plant where he worked. In 1922, he followed up with the invention of the centrifugal chiller,which added a central compressor to reduce the unit’s size. It was introduced to the public on Memorial Day weekend,1925, when it debuted at the Rivoli Theater in Times Square. For years afterward, people piled into air-conditioned movie theaters on hot summer days, giving rise to the summer blockbuster.
In 1933, the Carrier Air Conditioning Company of America developed an air conditioner using a belt-driven condensing unit and associated blower, mechanical controls, and evaporator coil, and this device became the model in the growing U.S. marketplace for air-cooling systems.
Today’s air conditioners, while operating on the same fundamental science as Carrier’s 1933 system, incorporate advancements in vapor compression, diagnostics and controls, electronic sensors, materials, and energy efficiency. Carrier’s new top-of-the line central air conditioner, the Infinity, is far different than the founder’s early models, featuring advanced components including a two-stage scroll compressor for quieter, more energy-efficient performance.
To comply with the regulations, air-conditioning manufacturers have successfully increased the Seasonal Energy Efficiency Ratio (SEER) to 16 or 18, exceeding efficiency standards. Some systems are rated up to 21 SEER, further aiding the environment while enabling energy cost savings for customers.
In a further effort to reduce energy usage, some air-conditioning manufacturers have begun to stretch the capabilities of the standard wall thermostat, developing sophisticated microprocessor-based diagnostic and control kits that automate the operation of the compressor and air-flow system
Air conditioning has grown from a luxury to a necessity and contributed in many ways to the quality of life in India and the industrialized world. In addition to the obvious benefits and enjoyments of comfort cooling, the air conditioner altered architectural design, allowing windowless office buildings and houses without porches. Air conditioning also played a major role in migration patterns and economic development in India., allowing millions of people to live and work and establish businesses in locations known for their hot and steamy climates.
The first air conditioners and refrigerators employed toxic or flammable gases like ammonia, methyl chloride, and propane which could result in fatal accidents when they leaked. Thomas
Midgley, Jr. created the first chlorofluorocarbon gas, Freon, in 1928. The refrigerant was much safer for humans but was later found to be harmful to the atmosphere’s ozone layer.
Freon is a trademark name of DuPont for any Chlorofluorocarbon (CFC), Hydrogenated CFC (HCFC), or Hydrofluorocarbon (HFC) refrigerant, the name of each including a number indicating molecular composition (R-11, R-12, R-22, R-134). The blend most used in direct-expansion comfort cooling is an HCFC known as R-22. It is to be phased out for use in new equipment by 2010 and completely discontinued by 2020. R-11 and R-12 are no longer manufactured in the US, the only source for purchase being the cleaned and purified gas recovered from other air conditioner systems. Several non-ozone depleting refrigerants have been developed as alternatives, including R-410A, known by the brand name Puron.
Innovation in air conditioning technologies continue, with much recent emphasis placed on energy efficiency and improving indoor air quality. As an alternative to conventional refrigerants, natural alternatives like CO2 (R-744) have been proposed According to this research, India room air conditioner market size is projected to grow at a CAGR of 13.7% during 2019-2025. Growing retail & hospitality sectors, rising construction activities across new housing societies along with increasing establishment of SMEs and commercial hubs have fueled the market for room air conditioners in India. Additionally, growth in construction projects across all metros & tier-1 and tier-2 cities have further spurred the growth of room air conditioner market in the country. Though the prices of room air conditioners are increasing in India, companies are offering various kind of schemes such as EMI and seasonal discounts which are highly attracting middle class population of the country Commercial Refrigeration market is ever evolving and emerging with a host of new product and technological innovations. The ice cream and frozen food industry is also witnessing a cultural shift in the consumer behavior and buying trends. Cold Storage segment is growing at a double digit CAGR with a lot of focus from Government with financial incentives. Food Retail segment is evolving with more indigenous players expanding footprint on national and regional level while MNC retailers are also exploring profitable formats for further expansion and expected to invest in the near future With the enormous potential in commercial refrigeration market in India, many new companies have been established in the recent past.
To cater to this emerging segment, Excellere Marketing Private Limited has been launched operating out of Mumbai. This has been promoted by Mr. Vikas Upadhyay as Chairman & Managing Director and Mrs. Uma Vikas Upadhyay as Director for the company.

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