EnergyPlus / IFC Data Exchange List

  Design Data

    Zone Design

      1) zone design hot supply air flow rate
      2) zone design cold supply air flow rate
      3) zone design heating load
      4) zone design cooling load
      5) zone design hot supply air temperature
      6) zone design cold supply air temperature
      7) zone design temperature setpoint
      8) zone design humidity ratio
      9) zone design minimum outside air flow rate

    System Design

      1) system design hot supply air flow rate
      2) system design cold supply air flow rate
      3) system design heating load
      4) system design cooling load
      5) system design hot supply air temperature
      6) system design cold supply air temperature
      7) system design preheat temperature
      8) system design minimum flow ratio
      9) system design minimum outside air flow rate

    Plant Fluid Loop Design

      1) Design loop exit temperature
      2) Design loop delta T

    Design Weather Conditions

      1) heating drybulb
      2) heating windspeed
      3) cooling drybulb
      4) drybulb range
      5) mean coincident wetbulb
      6) wind speed

  Components (simple)

    Electric Compression Chiller

      1) Condenser Type: water cooled, air cooled, evap cooled
      2) Nominal capacity
      3) Nominal COP
      4) Minimum Part Load Ratio
      5) Maximum Part Load Ratio
      6) Optimum Part Load Ratio
      7) Design Evaporator Volumetric Water Flow Rate
      8) Design Condenser Volumetric Water Flow Rate

    Boiler

      1) Fuel Type
      2) Nominal Capacity
      3) Nominal efficiency
      4) Design boiler water outlet temperature
      5) Design boiler water flow rate
      6) Minimum Part Load Ratio
      7) Maximum Part Load Ratio
      8) Optimum Part Load Ratio

    Cooling Tower

      1) type: single, two or variable speed fan
      2) Tower nominal capacity (high speed)
      3) Tower nominal capacity (low speed)
      4) Tower nominal capacity (free convection)
      5) Tower nominal air flow rate (high speed)
      6) Tower nominal air flow rate (low speed)
      7) Tower nominal air flow rate (free convection)
      8) Tower nominal fan power (high speed)
      9) Tower nominal fan power (low speed)

    Pump

      1) type: constant or variable speed
      2) Nominal flow rate
      3) Nominal head
      4) Nominal power
      5) motor efficiency
      6) fraction of motor heat loss to fluid stream

    Fan

      1) Type: constant, two, or variable speed.
      2) nominal total efficiency
      3) nominal static pressure
      4) nominal flow rate
      5) min flow rate
      6) motor efficiency
      7) fraction of motor losses to air stream

    Hot Water Coil

      1) UA
      2) max water flow rate

    Chilled Water Coil

     1) UA
     2) max water flow
     3) design exit relative humidity

    Note: since UA is not widely useful, it might be better to have design
          water flow rate, air flow rate, total capacity, and sensible
          capacity for the water coils. Also need design inlet air temperaure
          (given by the rating point) and design water inlet temperature.
          EPlus or the BS Client would convert to UA.
          The code to do this is available in EPlus.

    Electric Heating Coil

      1) nominal capacity
      2) efficiency

    Gas Heating Coil

      1) nominal capacity
      2) efficiency

    DX Coil (single speed compressor)

      1) rated total cooling capacity
      2) rated sensible heat ratio (might want to use sensible capacity)
      3) rated COP
      4) rate air volumetric flow rate

    DX Coil (two or variable speed compressor)

      1) rated total cooling capacity (high speed)
      2) rated sensible heat ratio (high speed)
      3) rated COP (high speed)
      4) rate air volumetric flow rate (high speed)
      5) rated total cooling capacity (low speed)
      6) rated sensible heat ratio (low speed)
      3) rated COP (low speed)
      4) rate air volumetric flow rate (low speed)

    Air-to-air heat pump (heating mode)

      1) rated total heating capacity
      2) rated COP for heating
      3) rated volumetric air flow rate

      cooling mode is same as DX coil

    Hot Water Baseboard

      1) UA
      2) max water flow rate

      Note: instead of UA might want to use rated capacity and
      design inlet water temperature.

    Electric baseboard

      1) capacity
      2) efficiency

    Direct Evaporative Cooler (wetted pad)

      1) pad area
      2) pad depth
      3) recirc water pump power consumption

    Indirect Evaporative Cooler (wetted pad)

      1) pad area
      2) pad depth
      3) recirc water pump power consumption
      4) secondary fan flow rate
      5) secondary fan efficiency
      6) secondary fan pressure delta
      7) indirect heat exchanger effectiveness

    Indirect Evaporative Cooler (wetted coil)

      1) coil nominal efficiency
      2) coil flow ratio
      3) recirc water pump power consumption
      4) secondary fan flow rate
      5) secondary fan efficiency
      6) secondary fan pressure delta

    Electric Steam Humidifier

      1) rated capacity (steam output in m3/s)
      2) rated power consumption (excluding blower and standby)
      3) rated fan power
      4) rated standby power

    Flat Plate Air-to-air Heat Exchanger

      1) flow arrangement (counter, parallel, cross)
      2) hA ratio
      3) nominal primary air flow rate
      4) nominal primary air inlet temperature
      5) nominal primary air outlet temperature
      6) nominal secondary air flow rate
      7) nominal secondary air inlet temperature
      8) nominal electric power

  Components (compound)

    Fan Coil

      1) max air flow rate
      2) max outside air flow rate
      3) max cold water flow rate
      4) min cold water flow rate
      5) max hot water flow rate
      6) min hot water flow rate
      7) reference to a fan
      8) reference to a hot water coil
      9) reference to a cold water coil

    Unit Ventilator

      1) max air flow rate
      2) max outside air flow rate
      3) min outside air flow rate
      4) control type (variable percent or fixed temperature)
      5) min outside air schedule (frac of min OA flow rate)
      6) max outside air schedule (frac of max flow rate ) if variable
         percent set point temperature schedule if fixed temperature
      7) max hot water flow rate
      8) min hot water flow rate
      9) max cold water flow rate
     10) min cold water flow rate
     11) reference to hot water, gas or electric coil
     12) reference to chilled water coil
     13) reference to fan

    Unit heater

      1) max air flow rate
      2) max hot water flow rate
      3) min hot water flow rate
      4) reference to gas, electric or hot water coil
      5) reference to fan

    Unitary System (packaged or rooftop unit)

      1) cycling or continuous fan
      2) draw though or blow through fan
      3) design heating capacity
      4) design cooling capacity
      5) sensible cooling capacity
      6) design air flow rate
      7) name of controling zone
      8) fraction of design air to controlling zone
      9) max humidity control - yes or no
     10) reference to heating coil (gas or electric)
     11) reference to cooling coil (DX)
     12) reference to fan
     13) reference to reheat coil (if humidity control)

    Air Terminal Units

      1) type: single duct constant volume,
               single duct variable volume,
               single duct parallel powered induction,
               single duct series powered induction,
               dual duct constant volume,
               dual duct variable volume

      2) maximum primary air volumetric flow rate
      3) minimum primary flow fraction
      4) maximum total air flow (used by series PIU)
      5) maximum secondary air flow (used by parallel PIU)
      5) max hot water flow (if reheat coil is hot water)
      6) min hot water flow
      7) reference to reheat coil (if there)
      8) reference to blower fan (if there)

  System Data

    System data will be defined as containers: groups and/or groups that contain groups.

    Zone Equipment

      A group containing a zone and a list of components
      directly serving the zone (such as an ATU or fan coil).

    Air System

      A group containing central air system components and
      a set of zone equipment. Somehow each component
      must be assigned to a central supply, hot air supply,
      cold air supply, or return air duct. Maybe we will have to
      define ducts or branches, since we also have to indicate component
      order somehow.

    Water Loop

      Consists of 2 groups: demand side components and
      supply side components. Thus a chilled water loop
      would have as a demand side a list of coils and as a
      supply side one or more chillers and a pump.