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Cooling load calculation form
For estimating the cooling load of a room with reference to the VDi 2078
Address:
Type of room:
name:
size of room:
street:
length
width
Height
surface
Volume
town:
5.0 m
5.0 m
3.0 m
25.0 m²
75.0 m³
1. Insolation through
windows and external doors
exposed window
reduction factor, solar protection
window
area
m²
Cooling load,
windows,
watt
single
glazed
w/m²
double
glazed
w/m²
thermo
glazed
w/m²
internal
blinds
awnings
external
blinds
north
65
60
35
x 0.7
x 0.3
x 0.15
northeast
80
70
40
east
310
280
155
southeast
270
240
135
south
350
300
165
southwest
310
280
155
west
320
290
160
4.0
174
northwest
250
240
135
Attic window
500
380
220
Only use the maximum value for different points of the compass.
174
2. Walls less window and door openings that have already been taken into account.
Cooling load
w/m²
wall area
m²
Cooling
load, wall
watt
external walls
10
26.0
260
internal walls
10
15.0
150
Total
410
3. Floor towards non-air conditioned areas
Cooling load
w/m²
Floor area
m²
Cooling
load, floor
watt
Total
10
25.0
250
4. Ceiling less roof windows and fanlights
that have already been recorded
Flat roof
Pitched roof
Ceiling
towards
non-air
conditioned
rooms w/m²
Ceiling area
m²
Cooling
load, ceiling
watt
not
insulated
w/m²
insulated
w/m²
not
insulated
w/m²
insulated
w/m²
Total
60
30
50
25
10
25.0
750
5. Electrical appliances that are operated at the time of cooling
Connected
load
watt
Factor
Cooling load,
appliances
watt
lighting
Computer with monitor and printer
500
x 0.75
375
Total
375
6. Heat given off by occupants that are at rest or perform only light work
Cooling load
w/person
occupants
number
occupants
watt
Total
120
2
240
7. Outside air for air conditioning appliance with a proportion of outside air
Cooling load
w/m²
Air volume
m³
Ventilation air
watt
Total
10
Total cooling load of the room in watts
The estimated cooling load results in a temperature reduction of approx. 5 °C
2199
coolIng load calcUlatIon
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