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  1. #101
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    مشكور اخي الكريم 000403 على المرور ..
    [BLINK]
    ان شاء الله
    [/BLINK]



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  2. #102
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    Cool (2)


    Condenser:
    The container in a cooling system where gas changes phase to liquid, releasing heat to the
    surroundings.


    DX (direct expansion): Refers to a heat exchanger that contains the refrigerant inside its tubing rather than water, antifreeze, or other fluid. Heat from the
    surroundings is directly absorbed into the refrigerant, which is “pumped” by the compressor.

    Full Storage: Refers to a TES system that stores sufficient cooling to meet an entire peak day cooling capacity, allowing chillers to be off during the onpeak
    period.

    On-Peak:
    A time period, defined by the utility, when the cost of providing power is high because the system demand for power is high. The on-peak
    period is typically characterized by higher costs to the customer for energy and/or demand charges.




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  3. #103
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    R Value : R Value is a measure resistance of insulation to heat flow. The higher the R Value the more effective the insulation.

    Heat pump : A heat pump is basically an air conditioner with a valve that allows it to operate in reverse. It removes heat from your house and shunts it outdoors in the summer, and removes heat from outdoor air and shunts it into your house in the winter. Because heat pumps do not actually create heat-they just move it from one place to another-heat pumps are more efficient than other forms of heating.



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    التعديل الأخير تم بواسطة م. عبد المنعم ; 2006-08-11 الساعة 06:32 PM

  4. #104

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  7. #107
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    Smile


    Reverse cycle air conditioning : Reverse cycle air conditioning can be switched into reverse, so heat is removed from the outside air and blown inside to provide heating.

    Remote thermostats : Remote thermostats are thermostats which are positioned independently of a heating or cooling device.



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  8. #108
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    الوحدة الحرارية البريطانية ( و ح ب ) British Thermal Unit = B T U
    هي الوحدة المستخدمة لقياس الحرارة في النظام الانكليزي . وتعرّف كما يلي : هي كمية الحرارة اللازمة لتغيير درجة حرارة باوند واحد من الماء درجة واحدة فهرنهيتية .



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  9. #109
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    Cool


    Output capacity :

    Refrigerative air conditioners should be sized based on output capacity.

    The output is normally expressed in kilowatts (kW).

    If you are considering purchasing a room unit, an approximate guide is to allow 0.125 kW per square metre of floor area to be cooled in living areas and 0.08 kW per square metre of floor area in bedrooms.

    This guide applies to cooling rooms with standard 2.4 m high ceilings and insulation. For example, a living room with an area of 30m2 will require an air conditioner with an output of around 3.75 kW, while a bedroom with the same floor area will require an air conditioner with an output of around 2.4 kW



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    التعديل الأخير تم بواسطة م. عبد المنعم ; 2006-12-25 الساعة 03:48 AM

  10. #110
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    مشكورررررررر يابشمهندس عالى هذا المجهود


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