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  1. offshorehvac

    HAP:Heating T stat set-point

    Hi EnergyProffsional, Thanks for your response. I agree with your reasoning. But things are a bit different when 3rd part auditors are involved. Better to keep the paper work correct. I don't think having 75 deg C in winters is the right temperature in this building. The winter inside...
  2. offshorehvac

    HAP:Heating T stat set-point

    Hello dbill74, Thanks for your response. No you can not set the cooling and heating temperature same in HAP, See below response from Carrier, Hello XXXX, You are correct, there is a 1⁰F deadband required in the air system temperature control configuration. To calculate the required cooling...
  3. offshorehvac

    HAP:Heating T stat set-point

    Hi Friends, I am working on a project where the inside temperature set point for cooling and heating is required to be set at 75 deg F. This is for an Electrical building which houses electrical and controls panels/cabinets Industrial application . Ambient in winter is 30 deg F. The software...
  4. offshorehvac

    ASHRAE Design Temp.: Annual Cumulative Frequency of Occurrence

    Friends, ASHRAE provides design temperatures for 0.4%/1.0%/2.0% (Cooling), 99.6%/99.0% (Heating) annual cumulative frequency of occurrence. Are there any guidelines or criterion available to decide what frequency of occurrence should be used for a projects? Thanks
  5. offshorehvac

    Louisiana: Industrial Building: Is energy code applicable

    Hello friends I am working on the design of HVAC system for electrical buildings for a industrial project located in Louisiana. Does the HVAC design required to be in compliance with energy code (ASHRAE Standard 90.1-2007 and is it required to use COMcheck tool? Per attached snap snapshot from...
  6. offshorehvac

    HAP V4.5 User defined U-Value

    Friends, Is there any way to enter user defined over all U-value in HAP? In our project, Overall U-value is already defined in architectural specification. Thanks
  7. offshorehvac

    Face Velocity for Door Grilles

    JFGI since morning, nothing coming up:)
  8. offshorehvac

    Face Velocity for Door Grilles

    Thanks Neoneals I was using 250 FPM but I need some valid document to justify my sizing on a project where consultant forgot to specify door grilles
  9. offshorehvac

    Face Velocity for Door Grilles

    Hello Friends Are there any guidelines in National Building code or ASHRAE regarding maximum Face Velocity or free air velocity for air transfer grilles on doors/undercuts
  10. offshorehvac

    Chemical Dosing Tank sizing

    Firends Could someone please guide me how to size or select the chemecial dosing/feeder/pot tank on a closed chilled water loop. Plant size is 67 tons Thanks
  11. offshorehvac

    Pressure drop across valve

    Thanks Ione I did used specific gravity. Problem is getting the Kv value for the valves as all the data form the supplier is for liquid media.
  12. offshorehvac

    Generator Room Ventilation

    Please check the data sheet of engine and the alternator and check the heat balance data. Try to find the amount of heat dissipated by the -engine, -alternator -and the flue gas ducts. With this information you should be able to calculate the amount of air flow required for the ventilation...
  13. offshorehvac

    Pressure drop across valve

    Hi friends I am working on a project where I have to calculate pressure drop across a valve. Data is as follows Media: Air at 350 deg C Flow : 26000 CMH Valve : 600 dia Valve Kv : 1839 m3/hr-bar Air is being forced into the valve by an axial fan having discharge pressure of 100 mm of WG Thanks
  14. offshorehvac

    Air velocity in Exhaust duct from Kitchen Hood

    Thanks Chasbeab1 appreciated.
  15. offshorehvac

    Air velocity in Exhaust duct from Kitchen Hood

    Friend Can someone directs me to the ASHRAE chapter or any other code where I can find any reference to recommended air velocity in the exhaust duct connected to Kitchen hood. Air will have oil/grease. Thanks
  16. offshorehvac

    Lloyds requirements for Galley ventilation

    Guys please help Is there any requirement in Lloyd rule for Galley ventilation on mobile semi I am looking for any requiremenys of air changes etc.. Thanks
  17. offshorehvac

    Independent Engine Room Ventilation System

    Hi You should ask the engine vendor to give you the heat dissipation data for the engine as well alternator. Normally engine rooms are designed for a room temperature of 45~55 deg C. You should also check the applicable class (DNV, ABS..etc.) and if there are any other control panels and...
  18. offshorehvac

    Supplier for HVAC Chillers for Submarine

    Hi friends This is a real submarine. This chiller will be serving AHU and fan coil units. Thanks
  19. offshorehvac

    Chiller for Submarine air-conditioning

    Friends Any ideas who manufacture or supply water chillers for air-conditioning in submarines. Thanks
  20. offshorehvac

    Supplier for HVAC Chillers for Submarine

    Friends Any ideas who manufacture or supply water chillers for air-conditioning in submarines Thanks

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