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  2. Coefficient of performance - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_performance

    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.

  3. Daikin - Wikipedia

    en.wikipedia.org/wiki/Daikin

    On April 28, 2024, Daikin Philippines President Takayoshi Miki hosted Daikin's first fun run, “Daikin: Run for Clean Air 2024” at Bridgetowne with 800 runners. [27] On May 21, 2024, Daikin Industries, led by President & CEO, Masanori Togawa with Chief global group officer and board chair, Noriyuk Inhoue, celebrated its centennial founding with a commemorative ceremony attended by 2,000 at ...

  4. Heating seasonal performance factor - Wikipedia

    en.wikipedia.org/wiki/Heating_seasonal...

    Heating seasonal performance factor (HSPF) is a term used in the heating and cooling industry. HSPF is specifically used to measure the efficiency of air source heat pumps. HSPF is defined as the ratio of heat output (measured in BTUs) over the heating season to electricity used (measured in watt-hours). [1] [2] It therefore has units of BTU ...

  5. Thermal efficiency - Wikipedia

    en.wikipedia.org/wiki/Thermal_efficiency

    Gross heating value accounts for water in the exhaust leaving as vapor, and includes liquid water in the fuel prior to combustion. This value is important for fuels like wood or coal, which will usually contain some amount of water prior to burning. Which definition of heating value is being used significantly affects any quoted efficiency.

  6. Annual fuel utilization efficiency - Wikipedia

    en.wikipedia.org/wiki/Annual_fuel_utilization...

    The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

  7. Daikin Applied Americas - Wikipedia

    en.wikipedia.org/wiki/Daikin_Applied_Americas

    In 2006, McQuay was acquired by Daikin Industries, a global manufacturer of both commercial and residential air conditioning equipment based in Osaka, Japan. Daikin had annual sales of $13 billion in 2009. [2] Daikin was named one of the 100 most sustainable corporations for three years in a row by Corporate Knights, Inc., from 2007 through ...

  8. MAIFI - Wikipedia

    en.wikipedia.org/wiki/MAIFI

    The Momentary Average Interruption Frequency Index (MAIFI) [1] is a reliability index used by electric power utilities.MAIFI is the average number of momentary interruptions that a customer would experience during a given period (typically a year).

  9. Stress–strength analysis - Wikipedia

    en.wikipedia.org/wiki/Stress–strength_analysis

    Stress-Strength Analysis is a tool used in reliability engineering. Environmental stresses have a distribution with a mean ( μ x ) {\displaystyle \left(\mu _{x}\right)} and a standard deviation ( s x ) {\displaystyle \left(s_{x}\right)} and component strengths have a distribution with a mean ( μ y ) {\displaystyle \left(\mu _{y}\right)} and a ...

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