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Re: [EnergyPlus_Support] Re: Adding Battery in E+





Azadeh,

In the example file Julien mentions, you can find the following object classes which describe the charging and discharging coefficients for the battery. 


  Curve:DoubleExponentialDecay,
    Doubleexponential,       !- Name
    1380,                    !- Coefficient1 C1
    6834,                    !- Coefficient2 C2
    -8.75,                   !- Coefficient3 C3
    6747,                    !- Coefficient3 C4
    -6.22,                   !- Coefficient3 C5
    0,                       !- Minimum Value of x
    1,                       !- Maximum Value of x
    ,                        !- Minimum Curve Output
    ,                        !- Maximum Curve Output
    Dimensionless,           !- Input Unit Type for x
    Dimensionless;           !- Output Unit Type

  ElectricLoadCenter:Storage:Battery,
    Kibam,                   !- Name
    ALWAYS_ON,               !- Availability Schedule Name
    ,                        !- Zone Name
    0,                       !- Radiative Fraction
    10,                      !- Number of Battery Modules in Parallel
    10,                      !- Number of Battery Modules in Series
    86.1,                    !- Maximum Module Capacity {Ah}
    0.7,                     !- Initial Fractional State of Charge
    0.37,                    !- Fraction of Available Charge Capacity
    0.5874,                  !- Change Rate from Bound Charge to Available Charge {1/hr}
    12.6,                    !- Fully Charged Module Open Circuit Voltage {V}
    12.4,                    !- Fully Discharged Module Open Circuit Voltage {V}
    charging,                !- Voltage Change Curve Name for Charging
    discharging,             !- Voltage Change Curve Name for Discharging
    0.054,                   !- Module Internal Electrical Resistance {ohms}
    100,                     !- Maximum Module Discharging Current {A}
    10,                      !- Module Cut-off Voltage {V}
    1,                       !- Module Charge Rate Limit
    Yes,                     !- Battery Life Calculation
    5,                       !- Number of Cycle Bins
    Doubleexponential;       !- Battery Life Curve Name

  Curve:RectangularHyperbola2,
    charging,                !- Name
    -.2765,                  !- Coefficient1 C1
    -93.27,                  !- Coefficient2 C2
    0.0068,                  !- Coefficient3 C3
    0,                       !- Minimum Value of x
    1,                       !- Maximum Value of x
    -100,                    !- Minimum Curve Output
    100,                     !- Maximum Curve Output
    Dimensionless,           !- Input Unit Type for x
    Dimensionless;           !- Output Unit Type

  Curve:RectangularHyperbola2,
    discharging,             !- Name
    0.0899,                  !- Coefficient1 C1
    -98.24,                  !- Coefficient2 C2
    -.0082,                  !- Coefficient3 C3
    0,                       !- Minimum Value of x
    1,                       !- Maximum Value of x
    -100,                    !- Minimum Curve Output
    100,                     !- Maximum Curve Output
    Dimensionless,           !- Input Unit Type for x
    Dimensionless;           !- Output Unit Type


Hope this helps,

Jason

On Wed, Mar 25, 2015 at 7:49 AM, azadehmaz438@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
 

Hello Julien,


Thank you so much for your help.
I checked that example but there isn't any change in electric load center and performance curves where we should apply coefficients and other changes.
Do you have any idea?

Regards,
Azadeh




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Posted by: Jason Kirkpatrick <jason.alan.kirkpatrick@xxxxxxxxx>


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