40
9.3.2
Worked example – mechanical inlet/natural discharge
Lochinvar EF100
Heat input (net):
=
92.0 kW
Minimum combustion air flow rate:
=
92.0 x 2.6 m
3
/h
=
239.2 m
3
/h
Ventilation grille size (high level):
=
184 cm
2
9.3.3
Worked example – mechanical inlet/mechanical discharge (minimum combustion air flow rate)
Lochinvar EF100
Heat input (net):
=
92.0 kW
Minimum combustion air flow rate:
=
92.0 x 2.6 m
3
/h
=
239.2 m
3
/h
Difference between inlet and extract air (maximum value): =
92.0 x (1.35 + 0.18) m
3
/h
=
140.76 m
3
/h
Difference between inlet and extract air (minimum value): =
92.0 x (1.35 - 0.18) m
3
/h
=
107.64 m
3
/h
Extract air (maximum value):
=
239.2 m3/h - 107.64 m
3
/h
=
131.56 m
3
/h
Extract air (minimum value):
=
239.2 m3/h - 140.76 m
3
/h
=
98.44 m
3
/h
9.3.4
Worked example – mechanical inlet/mechanical discharge (alternate combustion air flow rate):
Lochinvar EF100
Heat input (net):
=
92.0 kW
Minimum combustion air flow rate:
=
92.0 x 2.6 m
3
/h
=
239.2 m
3
/h
Actual combustion air flow rate:
=
92.0 x 3.15 m
3
/h
=
289.8 m
3
/h
Difference between inlet and extract air (maximum value): =
92.0 x (1.35 + 0.18) m
3
/h
=
140.76 m
3
/h
Difference between inlet and extract air (minimum value): =
92.0 x (1.35 - 0.18) m
3
/h
=
107.64 m
3
/h
Extract air (maximum value):
=
289.8 m
3
/h - 107.64 m
3
/h
=
182.16 m
3
/h
Extract air (minimum value):
=
289.8 m
3
/h - 140.76 m
3
/h
=
149.04 m
3
/h
Содержание EcoForce EF100
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