MIL-HDBK-1003/19
Tact
- actual average indoor temperature (deg.F).
Tave
- average thermostat setpoint (deg.F).
Tb
- base temperature (deg.F).
Te
- effective thermostat setpoint (deg.F).
Tset
- thermostat setpoint (deg.F).
_
T
- average room temperature with ventilation (deg.F).
_
Tmax
- average maximum room temperature without ventilation
(deg.F).
TAP
- thermosiphoning air panels.
THICK
- thermal storage mass thickness (ft).
TLC
- total load coefficient (Btu/deg.F-day).
TLCe
- effective total load coefficient (Btu/deg.F-day).
TLCS
- steady state total load coefficient (Btu/deg.F-day).
TMY
- typical meteorological year.
Uc
- steady state conductance of the passive solar
aperture (Btu/hr-ft2-deg.F).
VTn
- solar radiation transmitted monthly through a vertical
south facing aperture with n glazings
(Btu/ft2-month).
x
- dimensionless thickness.
X
- overhang length (ft).
Y
- separation (ft).
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