Hevacomp - Design Database - Special Surface Types

Could someone please advise if Special Surface Types are still a current option to define vehicle access doors and personnel doors?

The reason why I ask is because the BRUKL is not showing any personnel or vehicle access doors, dispite them being within the building and dispite the dropdown below the fabric descriptions being correctly selected.

Part L: 2010 (yup we still still do them! [old jobs]

Hevacomp Ver 25.06.15

V25 Manual Extact Below:

Special surface types - In order to use surface types such as vehicle doors, that can be recognised during the PartL analysis, we have provided a facility to recognise special surfaces if you include the following keywords when you set up the description of a relevant surface.

 

a)     External personnel doors – define as a wall or a window, which has the keyword DOOR within its description. In the case of windows, also include the code WALL=n, where n in the index of a wall construction. This wall construction will be used for the door.

b)    Vehicle access doors – define as a wall or a window, which has the keyword VEHICLE-DOOR within its description. In the case of windows, also include the code WALL=n, where n in the index of a wall construction. This wall construction will be used for the door.

c)     High usage entrance doors – define as a wall or a window, which has the keyword HIGHUSAGE-DOOR within its description. In the case of windows, also include the code WALL=n, where n in the index of a wall construction. This wall construction will be used for the door.

d)    Strongly ventilated adjoining space – define as a partition/internal ceiling/internal floor, which has the keyword STRONGLY-VENTILATED within its description.

e)     Underground walls - define as a wall, which has the keyword UNDERGROUND within its description.

f)     Exposed floors over outside air – define as a ground floor that has the keyword AIR-EXPOSED within its description.

g)    Display windows – define as a window that has the keyword DISPLAY-WINDOW within its description.

As an example, you could set up a vehicle access door as a Wall, which has as its description “Highly insulated VEHICLE-DOOR with steel cladding”.

This could be used as a wall within the project to set up vehicle access doors and would be recognised by the PartL package when analysing surfaces and U values.

Note that keywords are not case sensitive, so either vehicle-door or VEHICLE-DOOR could be used.  Note that PartL2 will interpret any wall description that contains the word DOOR as a personnel door.

Parents
  • Rob - You can use either the special codes as above, or select from the drop downs (where available) - However, if you are applying vehicle access or personnel doors into a space with no HVAC definition then they will be excluded from the calculation, as the space is not considered.

    Regards,
    Duncan

    Duncan Brown



  • Thanks Duncan,

    Not convinced by that one "However, if you are applying vehicle access or personnel doors into a space with no HVAC definition then they will be excluded from the calculation, as the space is not considered."

    I've set up the spaces as zones, set them up as a "ventilated" space type (this is not a simuation, but level 4)

    The part L runs and provides a BRUKL and includes the rooms but just does not fill in the personnel doors and vehicle access doors.

    Happy to send the file across as its just a vehicle workshop.

    Rob
  • Rob

    "Space type" in room data has no baring at all on the PartL program in Design Database. This is a data item that is solely considered by the EnergyPlus simulation engine.

    If you have your zone HVAC set to "No Heating or Cooling" in the PartL program then there will be no consideration of the U-value or type of fabric in that zone, and so your vehicle access doors will not considered.


    Regards,

    Duncan Brown



  • Yes its defined as having a heating system. Still doesn't show the building has doors.

    Any chance of an indication if Bentley are intending to update Hevacomp and get rid of the patchwork of bits of unused infomation?

    (adding info in room data ... like lighting... which can transpose across to the Part L engine would be nice

    Vent or cooling calcs that incorperate heat recovery recouperators and thermal wheels would be another).
Reply
  • Yes its defined as having a heating system. Still doesn't show the building has doors.

    Any chance of an indication if Bentley are intending to update Hevacomp and get rid of the patchwork of bits of unused infomation?

    (adding info in room data ... like lighting... which can transpose across to the Part L engine would be nice

    Vent or cooling calcs that incorperate heat recovery recouperators and thermal wheels would be another).
Children