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Kroger. Bernard Heinrich " Henry " Kroger (January 24, 1860 – July 21, 1938) was an American businessman who created the Kroger chain of supermarkets. Kroger was a pioneering grocery innovator who introduced self-service shopping to the public in 1895. He allowed customers to enter his stores, shop with prices clearly marked on every item ...
Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2][3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4] Heat pumps are similar in many ways to air conditioners, but ...
Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...
A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in 1935, and was designed to fit under a window like many modern PTACs. [2]
Glossary of HVAC terms. HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized ...
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Early history (1883 to 1950s) In 1883, 23-year-old Bernard Kroger, the fifth of ten children of German immigrants, invested his life savings of $372 (equivalent to $12,164 in 2023) to open a grocery store at 66 Pearl Street in downtown Cincinnati. [21] The son of a merchant, he ran his business with a simple motto: "Be particular.
12,000.00 Btu IT /h. 2,593.90 ft⋅lbf/s. A ton of refrigeration (TR or TOR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment. It was originally defined as the rate of heat transfer that results ...