Ingeniero Mecanico Industrial
Páginas: 9 (2060 palabras)
Publicado: 8 de marzo de 2013
PA RT
6
Cooling Load Rules of Thumb
H V A C E Q U AT I O N S , D ATA , A N D R U L E S O F T H U M B
58
PA RT 6
6.01 Offices, Commercial
A. General:
1.
2.
3.
4.
5.
6.
7.
8.
Total Heat
300–400 Sq.Ft./Ton;
Total Heat
30–40 Btuh/Sq.Ft.;
Room Sens. Heat
25–28 Btuh/Sq.Ft.;
SHR
0.75–0.93
Perimeter Spaces
1.0–3.0 CFM/Sq.Ft.
Interior Spaces
0.5–1.5 CFM/Sq.Ft.Building Block CFM 1.0–1.5 CFM/Sq.Ft.
Air Change Rate
4–10 AC/Hr.
(Range 230–520)
(Range 23–52)
(Range 19–37)
B. Large, Perimeter:
1. Total Heat
2. Total Heat
225–275 Sq.Ft./Ton
43–53 Btuh/Sq.Ft.
C. Large, Interior:
1. Total Heat
2. Total Heat
300–350 Sq.Ft./Ton
34–40 Btuh/Sq.Ft.
D. Small:
1. Total Heat
2. Total Heat
325–375 Sq.Ft./Ton
32–37 Btuh/Sq.Ft.6.02 Banks, Court Houses, Municipal Buildings, Town Halls
A. Total Heat
200–250 Sq.Ft./Ton (Range 160–340)
B. Total Heat
48–60 Btuh/Sq.Ft.
(Range 35–75)
C. Room Sens. Heat
28–38 Btuh/Sq.Ft.
(Range 21–48)
D. SHR
0.75–0.90
E. Air Change Rate
4–10 AC/Hr.
6.03 Police Stations, Fire Stations, Post Offices
A. Total Heat
250–350 Sq.Ft./Ton
(Range 200–400)B. Total Heat
34–48 Btuh/Sq.Ft.
(Range 30–60)
C. Room Sens. Heat
25–35 Btuh/Sq.Ft.
(Range 20–40)
D. SHR
0.75–0.90
E. Air Change Rate
4–10 AC/Hr.
59
Cooling Load Rules of Thumb
6.04 Precision Manufacturing
A. Total Heat
50–300 Sq.Ft./Ton
B. Total Heat
40–240 Btuh/Sq.Ft.
C. Room Sens. Heat
32–228 Btuh/Sq.Ft.
D. SHR
0.80–0.95
E. AirChange Rate
10–50 AC/Hr.
6.05 Computer Rooms
A. Total Heat
50–150 Sq.Ft./Ton
B. Total Heat
80–240 Btuh/Sq.Ft.
C. Room Sens. Heat
64–228 Btuh/Sq.Ft.
D. SHR
0.80–0.95
E. Air Flow
2.0–4.0 CFM/Sq.Ft.
F. Air Change Rate
15–20 AC/Hr.
6.06 Restaurants
A. Total Heat
100–250 Sq.Ft./Ton
(Range 75–300)
B. Total Heat
48–120 Btuh/Sq.Ft. (Range 40–155)
C.Room Sens. Heat
21–62 Btuh/Sq.Ft.
D. SHR
0.65–0.80
E. Air Flow
1.5–4.0 CFM/Sq.Ft.
F. Air Change Rate
8–12 AC/Hr.
(Range 20–80)
6.07 Kitchens (Depends Primarily on Kitchen Equipment)
A. Total Heat
150–350 Sq.Ft./Ton
(At 85°F. Space)
B. Total Heat
34–80 Btuh/Sq.Ft.
(At 85°F. Space)
C. Room Sens. Heat
20–56 Btuh/Sq.Ft.
(At 85°F. Space)
D. SHR0.60–0.70
E. Air Flow
1.5–2.5 CFM/Sq.Ft.
F. Air Change Rate
12–15 AC/Hr.
60
PA RT 6
6.08 Cocktail Lounges, Bars, Taverns,
Clubhouses, Nightclubs
A. Total Heat
150–200 Sq.Ft./Ton (Range 75–300)
B. Total Heat
60–80 Btuh/Sq.Ft.
(Range 40–155)
C. Room Sens. Heat
27–40 Btuh/Sq.Ft.
(Range 20–80)
D. SHR
0.65–0.80
E. Spaces
1.5–4.0 CFM/Sq.Ft.
F.Air Change Rate
15–20 AC/Hr.
Cocktail Lounges, Bars, Taverns,
Clubhouses
G. Air Change Rate
20–30 AC/Hr.
Night Clubs
6.09 Hospital Patient Rooms, Nursing Home Patient Rooms
A. Total Heat
250–300 Sq.Ft./Ton
(Range 200–400)
B. Total Heat
40–48 Btuh/Sq.Ft.
(Range 30–60)
C. Room Sens. Heat
32–46 Btuh/Sq.Ft.
(Range 25–50)
D. SHR
0.75–0.85
6.10Buildings w/100% OA Systems
(i.e., Laboratories, Hospitals)
A. Total Heat
100–300 Sq.Ft./Ton
B. Total Heat
40–120 Btuh/Sq.Ft.
6.11 Medical/Dental Centers, Clinics, and Offices
A. Total Heat
250–300 Sq.Ft./Ton
(Range 200–400)
B. Total Heat
40–48 Btuh/Sq.Ft.
(Range 30–60)
C. Room Sens. Heat
32–46 Btuh/Sq.Ft.
(Range 25–50)
D. SHR
0.75–0.85
E. Air ChangeRate
8–12 AC/Hr.
61
Cooling Load Rules of Thumb
6.12 Residential
A. Total Heat
500–700 Sq.Ft./Ton
B. Total Heat
17–24 Btuh/Sq.Ft.
C. Room Sens. Heat
12–20 Btuh/Sq.Ft.
D. SHR
0.80–0.95
6.13 Apartments (Eff., 1 Room, 2 Room)
A. Total Heat
350–450 Sq.Ft./Ton (Range 300–500)
B. Total Heat
27–34 Btuh/Sq.Ft.
(Range 24–40)
C. Room Sens. Heat
22–30...
6
Cooling Load Rules of Thumb
H V A C E Q U AT I O N S , D ATA , A N D R U L E S O F T H U M B
58
PA RT 6
6.01 Offices, Commercial
A. General:
1.
2.
3.
4.
5.
6.
7.
8.
Total Heat
300–400 Sq.Ft./Ton;
Total Heat
30–40 Btuh/Sq.Ft.;
Room Sens. Heat
25–28 Btuh/Sq.Ft.;
SHR
0.75–0.93
Perimeter Spaces
1.0–3.0 CFM/Sq.Ft.
Interior Spaces
0.5–1.5 CFM/Sq.Ft.Building Block CFM 1.0–1.5 CFM/Sq.Ft.
Air Change Rate
4–10 AC/Hr.
(Range 230–520)
(Range 23–52)
(Range 19–37)
B. Large, Perimeter:
1. Total Heat
2. Total Heat
225–275 Sq.Ft./Ton
43–53 Btuh/Sq.Ft.
C. Large, Interior:
1. Total Heat
2. Total Heat
300–350 Sq.Ft./Ton
34–40 Btuh/Sq.Ft.
D. Small:
1. Total Heat
2. Total Heat
325–375 Sq.Ft./Ton
32–37 Btuh/Sq.Ft.6.02 Banks, Court Houses, Municipal Buildings, Town Halls
A. Total Heat
200–250 Sq.Ft./Ton (Range 160–340)
B. Total Heat
48–60 Btuh/Sq.Ft.
(Range 35–75)
C. Room Sens. Heat
28–38 Btuh/Sq.Ft.
(Range 21–48)
D. SHR
0.75–0.90
E. Air Change Rate
4–10 AC/Hr.
6.03 Police Stations, Fire Stations, Post Offices
A. Total Heat
250–350 Sq.Ft./Ton
(Range 200–400)B. Total Heat
34–48 Btuh/Sq.Ft.
(Range 30–60)
C. Room Sens. Heat
25–35 Btuh/Sq.Ft.
(Range 20–40)
D. SHR
0.75–0.90
E. Air Change Rate
4–10 AC/Hr.
59
Cooling Load Rules of Thumb
6.04 Precision Manufacturing
A. Total Heat
50–300 Sq.Ft./Ton
B. Total Heat
40–240 Btuh/Sq.Ft.
C. Room Sens. Heat
32–228 Btuh/Sq.Ft.
D. SHR
0.80–0.95
E. AirChange Rate
10–50 AC/Hr.
6.05 Computer Rooms
A. Total Heat
50–150 Sq.Ft./Ton
B. Total Heat
80–240 Btuh/Sq.Ft.
C. Room Sens. Heat
64–228 Btuh/Sq.Ft.
D. SHR
0.80–0.95
E. Air Flow
2.0–4.0 CFM/Sq.Ft.
F. Air Change Rate
15–20 AC/Hr.
6.06 Restaurants
A. Total Heat
100–250 Sq.Ft./Ton
(Range 75–300)
B. Total Heat
48–120 Btuh/Sq.Ft. (Range 40–155)
C.Room Sens. Heat
21–62 Btuh/Sq.Ft.
D. SHR
0.65–0.80
E. Air Flow
1.5–4.0 CFM/Sq.Ft.
F. Air Change Rate
8–12 AC/Hr.
(Range 20–80)
6.07 Kitchens (Depends Primarily on Kitchen Equipment)
A. Total Heat
150–350 Sq.Ft./Ton
(At 85°F. Space)
B. Total Heat
34–80 Btuh/Sq.Ft.
(At 85°F. Space)
C. Room Sens. Heat
20–56 Btuh/Sq.Ft.
(At 85°F. Space)
D. SHR0.60–0.70
E. Air Flow
1.5–2.5 CFM/Sq.Ft.
F. Air Change Rate
12–15 AC/Hr.
60
PA RT 6
6.08 Cocktail Lounges, Bars, Taverns,
Clubhouses, Nightclubs
A. Total Heat
150–200 Sq.Ft./Ton (Range 75–300)
B. Total Heat
60–80 Btuh/Sq.Ft.
(Range 40–155)
C. Room Sens. Heat
27–40 Btuh/Sq.Ft.
(Range 20–80)
D. SHR
0.65–0.80
E. Spaces
1.5–4.0 CFM/Sq.Ft.
F.Air Change Rate
15–20 AC/Hr.
Cocktail Lounges, Bars, Taverns,
Clubhouses
G. Air Change Rate
20–30 AC/Hr.
Night Clubs
6.09 Hospital Patient Rooms, Nursing Home Patient Rooms
A. Total Heat
250–300 Sq.Ft./Ton
(Range 200–400)
B. Total Heat
40–48 Btuh/Sq.Ft.
(Range 30–60)
C. Room Sens. Heat
32–46 Btuh/Sq.Ft.
(Range 25–50)
D. SHR
0.75–0.85
6.10Buildings w/100% OA Systems
(i.e., Laboratories, Hospitals)
A. Total Heat
100–300 Sq.Ft./Ton
B. Total Heat
40–120 Btuh/Sq.Ft.
6.11 Medical/Dental Centers, Clinics, and Offices
A. Total Heat
250–300 Sq.Ft./Ton
(Range 200–400)
B. Total Heat
40–48 Btuh/Sq.Ft.
(Range 30–60)
C. Room Sens. Heat
32–46 Btuh/Sq.Ft.
(Range 25–50)
D. SHR
0.75–0.85
E. Air ChangeRate
8–12 AC/Hr.
61
Cooling Load Rules of Thumb
6.12 Residential
A. Total Heat
500–700 Sq.Ft./Ton
B. Total Heat
17–24 Btuh/Sq.Ft.
C. Room Sens. Heat
12–20 Btuh/Sq.Ft.
D. SHR
0.80–0.95
6.13 Apartments (Eff., 1 Room, 2 Room)
A. Total Heat
350–450 Sq.Ft./Ton (Range 300–500)
B. Total Heat
27–34 Btuh/Sq.Ft.
(Range 24–40)
C. Room Sens. Heat
22–30...
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