HVAC-Heater-Calculation-Sheet.xlsx

	A	B	C	D	E	F
1	HEATER CALCULATION SHEET (Duct & Equipment)
2
3	HEATER CALCULATION					ASHRAE SYSTEMS AND EQUIPMENT (Chapter 28.3)
4
5	Description	DBT(° C)	WBT(° C)	RH %	Specific humidity (W) kg/kg
6	Outside	-30
7	Inside	18
8
9	ROOM DESCRIPTION	FA QTY	SA QTY	RA QTY
10	ROOM DESCRIPTION	L/s (oa)	L/s (sa)	L/s (Ra)
11	Switch Building	107	107	0
12
13	tm = (toa X cfmoa +trm X cfmra ) /cfmsa		=	-30.00	° C
14
15	Difference in temperature		=	48.00	° C
16
17	Heater Capacity (With Mixed supply air)		=	6.16	kw
18
19	Heater Capacity (With Fresh air only)			6.16	kw
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100