Mitsubishi Electric Lossnay LGH-15RX3 Technical Manual page 28

G
Psychrometric chart for calculating Lossnay economical effect
Humid air psychrometric chart
(-10 to +50°C, atmospheric pressure 101.325 kPa)
±
∞ 1.0
–10 –9 –8 –7 –6 –5 –4 –3 –2 –1 0 1 2 3
0.75 0.76 0.77 0.78
0
The following can be determined from the above calculation results:
G
Saving of 59.8 kW of the heating load, and 52.6 kW of the cooling load is possible.
The heat source equipment and related ventilator capacity that is equivalent to this saved amount can be reduced, thus the
operation and maintenance costs can also be saved.
G
Approximately 400,000 yen can be saved in operation and maintenance costs during heating and 370,000 yen during
cooling, for a total savings of approximately 770,000 yen. Furthermore, as 20.2 kW can be saved from the basic power rates
during cooling, approximately 370,000 yen (20.2 × 1,560 yen/month × 12 months) can be saved annually.
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
0.79 0.80 0.81 0.82
14.6
CHAPTER 3 G General Technical Considerations
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
Dry bulb temperature t [°C]
0.83 0.84 0.85 0.86 0.87
20 26 27.89 33
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
0.88 0.89 0.90 0.91
0.037
0.036
5.5
0.035
0.034
0.033
5.0
0.032
0.031
0.030
4.5
0.029
0.028
0.027
0.026 4.0
0.025
0.024
0.023
3.5
0.022
0.021
0.0203
0.020
3.0
0.019
0.018
0.017
2.5
0.016
0.015
0.0146
0.014
0.013 2.0
0.012
0.011
0.0105
0.010
1.5
0.009
0.008
0.0072
0.007
1.0
0.006
0.005
0.005
0.004
0.5
0.003
0.002 0.0018
0.001
0.1
0.000 0.0
50
T. FUJITA
1987
25