Civil Engineering Reference
In-Depth Information
Regarding the rooftops in relation to panel area:
e
r
PV
¼
m
PV
=
Y
r
g
e
H
N
days
½
kWh
=
month
ð
8a
Þ
q
ST
¼
m
ST
=
Y
r
g
t
H
N
days
½
kWh
=
month
ç
Regarding the fa
ades in relation to panel area:
e
f
PV
¼
m
PV
=
Y
f
g
e
H
N
days
½
kWh
=
month
ð
8b
Þ
q
f
ST
¼
m
ST
=
Y
f
g
t
H
N
days
½
kWh
=
month
c production of the
panels relative to the total floor area, on the one hand, and the components
e
r
PV
;
e
f
PV
;
q
ST
, and q
f
ST
of the specific production of panels, on the other hand, there
are the following relations:
In addition, between e
PV
and q
ST
components of the speci
A
f
PV
A
TFA
A
r
PV
e
f
PV
e
r
PV
e
PV
¼
A
TFA
þ
ð
9a
Þ
A
f
ST
A
TFA
A
ST
q
f
ST
q
ST
A
TFA
þ
ð
Þ
q
ST
¼
9b
where:
A
f
PV
—
A
r
PV
;
ade PV panels [m
2
];
is area of the roof and fa
ç
A
f
ST
—
ade ST panels [m
2
];
A
ST
;
is area of the roof and fa
ç
oor area [m
2
],
A
GFA
—
is the ground
oor area [m
2
],
A
TFA
—
is the total
g
e
; g
t
—
are the overall PV/ST panels ef
ciency,
fixed surface of 1m
2
, [kWh/m
2
],
H is the irradiation received in eachmonthly, by a
N
days
—
number of days in month,
Y
r
,Y
f
—
are the solar yield for rooftops/fa
ç
ades, de
ned as the average over all
rooftop/fa
ç
ade surface orientations,
e
r
;
e
f
—
are the monthly speci
c power production of
rooftops/fa
ç
ades,
m
GFA
½
kWh
=
,
q
r
;
q
f
—
are
the monthly speci
c heat production of
rooftops/fa
ç
ades,
m
GFA
½
kWh
=
,
e
PV
,q
ST
—
are the monthly speci
c power production, and heat production of the
m
TFA
=
panels,
½
kWh
=
month
,
e
r
PV
;
q
ST
—
are the monthly speci
c power production, and heat production of
m
PV
=
m
ST
=
the panels installed on the roof,
½
kWh
=
month
,
½
kWh
=
month
,
e
f
PV
;
q
f
ST
—
are the monthly speci
c power production, and heat production of
½
=
m
PV
=
½
=
m
ST
=
the panels installed on the facade,
kWh
month
,
kWh
month
.
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