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155
Ql leakage air flow rate m
3
/s
Q
p
total heat requirement W
Q
r
radiation heat transfer W
recirculation air flow rate m
3
/s
Q
u
heat flow through fabric W
Q
v
ventilation heat loss W
q water flow rate kg/s
R resistance thermal m
2
K/W
room sound absorption constant m
2
Ra combined resistance of
pitched roof m
2
K/