Tommy Löfvenius VVS AB

Tommy Löfvenius Vvs AB should install a ventilationsystem in a house. Therefor he need to do some calculations.

To do this he use a special formula:

Roomvolume · 0,5 · ∆T · 0,31 · 1,163 = W

Roomvolume = m3
0,5 = air renewal (0,5 volume air change/hour)
∆T = temperature differents outside and inside, in this case 50°C.
0,31 = specific value
1,163 = W

Put the values you got in roomvolumescalculations in the formula and calculate how much W you need to change air in these rooms. Answer in integer.

No  (W)
1

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2

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3

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4

Result