Mitsubishi Electric Lossnay LGH-15RX3 Technical Manual page 120

Theoretical waste gas volume
Name of fuel
City Gas
Name of fuel
LP gas (mainly propane)
Butane/Air gas
Kerosene
(3) Ventilation capacity and characteristics of central air quality management devices
Effective ventilation capacity V
However, As = S (room's total floor space) (m
when actual value is over 10).
Characteristics: Generally satisfy the table below.
Central air quality management system ventilation capacity and characteristics
Impurity volume of floating particles
CO rate
CO rate
2
Temperature
Relative humidity
Ventilation
Caution
1. When cooling, keep the temperature difference at 7°C or less.
2. This table applies to regular buildings (under 31 m) when central air quality management system is installed.
Note: The volume of CO
2
The formula generally used to calculate the necessary ventilation capacity to keep CO
limits is given below.
k
× 100
y =
p-q
y : required ventilation (m
k : CO given off by one person each hour
2
p : acceptable level of CO
q : density of CO
2
CHAPTER 10 G Ventilation Standards in Each Country
Fuel type
Heat produced
13A
12A
5C
L1
L2
L3
Fuel type
3
20Af/N (m )
less than 0.15 mg per 1 m
Less than 10 ppm.
Less than 1,000 ppm.
1) Between 17°C and 28°C
2) When making the room temperature cooler than the outside temperature, do not
make the difference too great.
40% - 70%
less than 0.5 m/sec
given off by humans is about:
when sleeping
during regular work
3
/h) . . . . . . per 1 person
in the room (%)
2
in fresh air (usually about 0.03% to 0.04%)
Theoretical waste gas
volume per unit (m
3
(kJ / m )
46,000
40,000
19,000
21,000
21,000
15,000
Heat capacity
50,000 kJ/kg
3
29,000 kJ/ m
40,000 kJ/kg
2
) N: Floor space occupied by one person in actual condition (equals 10
3
of air
3
0.01 m /hr
3
0.02 to 0.05 m /hr
3
0.08 m /hr during heavy exercise.
Theoretical waste gas
3
/kJ) volume (m
0.000258
0.000258
0.000258
0.000258
0.000258
0.000258
Theoretical waste gas volume
12.90 m
7.33 m
12.10 m
density levels under accepted
2
3 3
/m )
11.87
10.32
4.90
5.42
5.42
3.87
3
/kg
3 3
/m
3
/kg
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