MIL-HDBK-1003/19
APPENDIX D
WORKSHEET 4
Base Temperature
CONSTANT THERMOSTAT SETTING
Thermostat setpoint:
Tset = _____
Base temperature:
Tb =
Tset -
Qint
[NLC + (24 [multiplied by] Uc [multiplied by] Ac)]
Tb = _____
NIGHT TIME SETBACK
Daytime setpoint:
T1 =
70
Duration of daytime setpoint:
hr1 =
17
Night time setpoint:
T2 =
60
Duration of night time setpoint:
hr2 =
7
Average setpoint:
Tave = T1(hr1/24) + T2(hr2/24)
Tave =
67.
Building time constant:
24 DHC
[tau] =
[NLC + (24 [multiplied by] Uc [multiplied by] Ac)]
[tau] =
30.
Effective thermostat setpoint:
Te = T1 - e -0.1[tau]/24 (T1 - Tave)
Te =
67.
Base temperature:
Qint
Tb = Te -
Tb =
60
[NLC + (24 [multiplied by] Uc [multiplied by] Ac)]
178
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