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In the United States, 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, a trade association, in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [1]
The Btu should not be confused with the Board of Trade Unit (BTU), an obsolete UK synonym for kilowatt hour (1 kW⋅h or 3,412 Btu). The Btu is often used to express the conversion-efficiency of heat into electrical energy in power plants. Figures are quoted in terms of the quantity of heat in Btu required to generate 1 kW⋅h of electrical energy.
Whirlpool Corporation is an American multinational manufacturer and marketer of home appliances headquartered in Benton Charter Township, Michigan, United States. [2] In 2023, the Fortune 500 company had an annual revenue of approximately $19 billion in sales, around 59,000 employees, and more than 55 manufacturing and technology research centers globally.
Whirlpool was released on 29 April 1991 by Dedicated Records. [1] It spent three weeks on the UK Albums Chart, peaking at number 23. [2] " Pearl" was issued as the album's only single on 18 March 1991, [3] reaching number 67 on the UK Singles Chart.
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Whirlpool is an independent [1] Australian website founded in 1998. Since then, it has grown significantly and has over 907,000 registered accounts. [ 2 ] Primarily a discussion forum, some extra functionality such as Broadband Choice was included, although this functionality has been removed from the site.
A whirlpool is a body of rotating water produced by opposing currents or a current running into an obstacle. [ 1 ] [ clarification needed ] Small whirlpools form when a bath or a sink is draining. More powerful ones formed in seas or oceans may be called maelstroms ( / ˈ m eɪ l s t r ɒ m , - r ə m / MAYL -strom, -strəm ).
ISO 12001:1996 Acoustics – Noise emitted by machinery and equipment – Rules for the drafting and presentation of a noise test code; ISO 12005:2003 Lasers and laser-related equipment – Test methods for laser beam parameters – Polarization