Can somebody help?? I am trying to get the EP example file "FanCoilAutoSize.idf" running in Hong Kong. But simply changing the EPW, location, and design conditions seems to break the model.
As you can see (https://pasteboard.co/JfC8EZ1.png) the FCU fails to control temperature in HK
I would upload the IDF files but don't have enough "points"
Basically I changed this:
! CHICAGO_IL_USA Annual Cooling 1% Design Conditions, MaxDB= 31.5°C MCWB= 23.0°C
SizingPeriod:DesignDay,
CHICAGO_IL_USA Annual Cooling 1% Design Conditions DB/MCWB, !- Name
7, !- Month
21, !- Day of Month
SummerDesignDay, !- Day Type
31.5, !- Maximum Dry-Bulb Temperature {C}
10.7, !- Daily Dry-Bulb Temperature Range {deltaC}
, !- Dry-Bulb Temperature Range Modifier Type
, !- Dry-Bulb Temperature Range Modifier Day Schedule Name
Wetbulb, !- Humidity Condition Type
23.0, !- Wetbulb or DewPoint at Maximum Dry-Bulb {C}
, !- Humidity Condition Day Schedule Name
, !- Humidity Ratio at Maximum Dry-Bulb {kgWater/kgDryAir}
, !- Enthalpy at Maximum Dry-Bulb {J/kg}
, !- Daily Wet-Bulb Temperature Range {deltaC}
99063., !- Barometric Pressure {Pa}
5.3, !- Wind Speed {m/s}
230, !- Wind Direction {deg}
No, !- Rain Indicator
No, !- Snow Indicator
No, !- Daylight Saving Time Indicator
ASHRAEClearSky, !- Solar Model Indicator
, !- Beam Solar Day Schedule Name
, !- Diffuse Solar Day Schedule Name
, !- ASHRAE Clear Sky Optical Depth for Beam Irradiance (taub) {dimensionless}
, !- ASHRAE Clear Sky Optical Depth for Diffuse Irradiance (taud) {dimensionless}
1.0; !- Sky Clearness
into this:
! HK Cooling Design Conditions
SizingPeriod:DesignDay,
HONG KONG Ann Clg .4% Condns WB=>MDB, !- Name
7, !- Month
21, !- Day of Month
SummerDesignDay, !- Day Type
30.8, !- Maximum Dry-Bulb Temperature {C}
4.7, !- Daily Dry-Bulb Temperature Range {deltaC}
, !- Dry-Bulb Temperature Range Modifier Type
, !- Dry-Bulb Temperature Range Modifier Day Schedule Name
Wetbulb, !- Humidity Condition Type
27.5, !- Wetbulb or DewPoint at Maximum Dry-Bulb {C}
, !- Humidity Condition Day Schedule Name
, !- Humidity Ratio at Maximum Dry-Bulb {kgWater/kgDryAir}
, !- Enthalpy at Maximum Dry-Bulb {J/kg}
, !- Daily Wet-Bulb Temperature Range {deltaC}
100547, !- Barometric Pressure {Pa}
5, !- Wind Speed {m/s}
240, !- Wind Direction {deg}
No, !- Rain Indicator
No, !- Snow Indicator
No, !- Daylight Saving Time Indicator
ASHRAEClearSky, !- Solar Model Indicator
, !- Beam Solar Day Schedule Name
, !- Diffuse Solar Day Schedule Name
, !- ASHRAE Clear Sky Optical Depth for Beam Irradiance (taub) {dimensionless}
, !- ASHRAE Clear Sky Optical Depth for Diffuse Irradiance (taud) {dimensionless}
1.0; !- Sky Clearness