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Have you added a dish station to your quick-serve restaurant? If so, how did you specify the equipment? i.e. definitions and schedules?

asked 2017-10-14 11:00:44 -0600

mbcoalson gravatar image

updated 2017-10-14 11:39:54 -0600

The space will generate a lot of moisture and heat and I would like to account for that in my model. Any suggestions? The Water Use Equipment Definition is stumping me. I'm unsure how to estimate gal/min for unspecified equipment and, while I understand that the Sensible fraction schedule will pertain to the RH in the space, without a reliable guess on gal/min I don't trust my instincts on estimating.

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answered 2017-10-14 13:19:43 -0600

Chandan Sharma gravatar image

EnergyPlus example file RefBldgQuickServiceRestaurantNew2004_Chicago.idf can be referenced as shown below.

  WaterUse:Equipment,
    Kitchen Water Equipment, !- Name
    ,                        !- End-Use Subcategory
    4.21e-005,               !- Peak Flow Rate {m3/s}
    BLDG_SWH_SCH,            !- Flow Rate Fraction Schedule Name
    Kitchen Water Equipment Temp Sched,  !- Target Temperature Schedule Name
    Kitchen Water Equipment Hot Supply Temp Sched, !- Hot Water Supply Temperature Schedule Name
    ,                        !- Cold Water Supply Temperature Schedule Name
    Kitchen,                 !- Zone Name
    Kitchen Water Equipment Sensible fract sched,  !- Sensible Fraction Schedule Name
    Kitchen Water Equipment Latent fract sched;  !- Latent Fraction Schedule Name

  Schedule:Compact,
    Kitchen Water Equipment Temp Sched,  !- Name
    Temperature,             !- Schedule Type Limits Name
    Through: 12/31,          !- Field 1
    For: AllDays,            !- Field 2
    Until: 24:00,49.0;       !- Field 3

  Schedule:Compact,
    Kitchen Water Equipment Sensible fract sched,  !- Name
    Fraction,                !- Schedule Type Limits Name
    Through: 12/31,          !- Field 1
    For: AllDays,            !- Field 2
    Until: 24:00,0.2;        !- Field 3

  Schedule:Compact,
    Kitchen Water Equipment Latent fract sched,  !- Name
    Fraction,                !- Schedule Type Limits Name
    Through: 12/31,          !- Field 1
    For: AllDays,            !- Field 2
    Until: 24:00,0.05;       !- Field 3
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Is the peak flow rate dependent or independent of the space's square footage? It appears that it is independent, if that is the case would you tell me the square footage of the space you applied this to? It would give me one more reference to judge the flow rate of my space by. Thank you for your answer.

mbcoalson gravatar image mbcoalson  ( 2017-10-16 07:00:52 -0600 )edit

Unit of peak flow rate input is $m^3/s$ so it is independent of kitchen square footage. The area of kitchen in reference file 116.17 $m^2$.

Chandan Sharma gravatar image Chandan Sharma  ( 2017-10-16 22:34:54 -0600 )edit

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Asked: 2017-10-14 11:00:44 -0600

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Last updated: Oct 14 '17