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  • Users: shmar
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  1. shmar

    Pressure in sheet metal ducts

    All Ducts are square (rectangular)
  2. shmar

    Pipe testing - Air vs water testing

    hi, it mainly depend on what lines you are testing. if this is a fuel line you would not want to test it with water!!! you can reach the same pressure with water and air, water will give you more visual leak testing for long lines.
  3. shmar

    Pressure in sheet metal ducts

    Hi, in a system for air conditioning if i have a fan supplying air through a duct system, how can i find the pressure in the duct in any given location up to the grill outlet. we can assume the system provides 1,000 l/s to a 1 grill and the fan has a head to resist the duct and the grill outlet...
  4. shmar

    pressure loss of air passing through a small slot

    Hi All, i have a problem to calculate the pressure loss of a small outlet from a large plenum, i have a plenum of 30m2 with few slots (opening) out of it. the slots are 20mm on 1m. Can you help in finding what is the pressure loss of the air passing through the slot for the selection of the fan.
  5. shmar

    Air Pass Through a wall passage

    there is a duct that supplies air to a plenum, from the plenum the air is going out through a small hole (slots) how do you calculate the pressure drop in the slots?
  6. shmar

    Air Pass Through a wall passage

    Hi, i have a problem calculating the pressure drop through an opening, air comes into a plenum and exist through a narrow opeining - what is the best method

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