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  • Users: roaling
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  1. roaling

    Price estimation for air-cooled chillers

    Is there someone confirming that 100 $/kW is a good figure to roughly evaluate the price of air-cooled chillers for air-conditiong application in the range 600-1200 kW of refrigeration (170-340 RT)? Thanks in advance. Roaling
  2. roaling

    CO2 effect on flue gas dew point

    The question is simple and clear. How does CO2 content effect the dew point of flue gas exhausted from natural gas fuelled gas turbine towards a HRSG? Thank a lot for your help.
  3. roaling

    Serrated fins

    I should appreciate to have information, formulas and procedures on how calculate the heat transfer coefficient of tubes with serrated fins. Thanks for your help.
  4. roaling

    A sticky question of heat transfer

    I have a configuration like this. - ambient air at -36°C (still) - 38 mm insulation (foamglass K=0.045 W/m°C) - electric heat tracing - 25 mm steel wall - 100 mm nitrogen wall (tank 2nd jacket, K=0.026 W/m°C) - 25 mm steel wall - glycol at 20°C The question is: how much is the heat introduced...
  5. roaling

    Inspection to double jacketed tank

    I have a double jacketed tank, of rectangular shape, 120 cum capacity and designed for 1 barg. Is there anyone who knows any standard/code/regulation giving requirements on the inspection on the jacket side of the tank ? Thanks for any help.
  6. roaling

    Bellow type expansion joint design

    Which are the main differences in designing bellow type expansion joint according to EJMA or ASME. The application is on a double pipe heat exchanger ASME code designed and constructed. Thanks for your help.
  7. roaling

    Coldfinger technology applications

    I am a professional for the first time involved in problems with Teg gas dehydration systems. Has anyone had experiences with Coldfinger technology in applications with high Teg concentration, 99% and more ? Any information would be very appreciated.

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