This document provides information on HVAC system designs and operating costs for several facilities, including: 1) A drug manufacturing plant with a total air requirement of 22,000 CMH and outdoor conditions of 35°C and 27 g/kg. 2) A chocolate processing facility requiring 24°C±2°C and 45% RH with an equipment load of 12kW. 3) A chewing gum packaging plant requiring 20°C±1°C and 38%±3% RH with an equipment load of 20kW and double doors. It details the product sizing, air volumes, outdoor conditions, equipment types, and operating costs for the cooling coils and dehumidification systems

1. HUI LING CHANG’sHUI-LING CHANG’s
W k E iWork Experience
Dafong‐Drug Manufacturing Process

2. Product Sizing:
System Design
g
DT 3400/9*3+DT 1400/9+ DT 800/6
Total Air: 22000 CMH
Fresh Air : 2500 CMHy g Fresh Air : 2500 CMH
Return Air: 19500CFM
By Pass Air: 3300 CMH
Outdoor condition: DB 35℃ w 27 g/kgOutdoor condition: DB 35℃, w 27 g/kg
AHU: post-cooling coil 14 RT
Energy Consumpiton Sources Post-cooling Coil
200
250
Dehumidification
E i t L d
150
200
d(kW)
Equipment Load
Pre-cooling Coil
50
100
mentLoad
0
50
Equipm
DehumidificationDehumidification
Equipment Type

3. Hunya –Chocolate Proccessing
Condition Requirement:
24℃±2℃, RH45%
Space Size:
19m*4m*2.9m (L*W*H)
Occupants: 6
Door Open Frequency:
6 min/hr
Equipment Load: 12kW
Door Size:
Single door, 120cm*180cm
Outdoor Condition:
33℃、RH 75%
Hunya –Chocolate Cooling and Drying
Condition Requirement:
24℃±2℃, RH45%
Space Size:
6m*6m*2.9m (L*W*H)
Occupants: 2
Door Open Frequency:
1 time/hr
Equipment Load: 3kW
Door Size:
Single door, 90cm*120cm
Outdoor Condition:
33℃、RH 75%

4. System Design
Product Sizing:Product Sizing:
DT 3400/9
Total Air Volume:
3400 CFM
Fresh Air Volume:
136 CFM136 CFM
Return Air Volume:
3265 CFM
DT Inlet: 3400 CFM
Exfiltration: 135 CFM
Outdoor condition:Outdoor condition:
DB 33℃, w 169.3
Gr/lb
AHU:
post-cooling coil 4RT
Operating Cost
$90
$100
Operating Cost
Electricity
33.75$70
$80
$90
NT/HR
y
Cooling
C il
$40
$50
$60
Cost
Coil
52.5
40
$20
$30
$40
10
$0
$10
DT 3400/9 Cooling Coil
Dehumidification
Equipment Type
AHUDT 3400/9 Cooling CoilAHU

5. Wrigley-Chewing Gum Packaging
Condition Requirement:
20℃±1℃, RH38%±3%
Space Size:
20m*9m*4m (L*W*H)
O t 15Occupants: 15
Door Open Frequency:
3 min/hr3 min/hr
Equipment Load: 20kW
Door Size:
double door,250cm*170cm
Surrounding Area:
28℃、RH 70%
S t D iSystem Design
Product Sizing:
DT 3400/9
Total Air Volume:
10400CFM
Fresh Air Volume:Fresh Air Volume:
200CFM
Return Air Volume:
10200CFM10200CFM
By Pass Air Volume:
7000CFM
Inlet DT: 3400CFM
Exfiltration: 200CFM
Outdoor condition:
DB 30℃, w 203
Gr/lb
AHU: pre-coolingAHU: pre cooling
coil2.2RT, and post-
cooling coil 12RT

6. Operating Cost
$200
$220
Operating Cost
Steam
145 5
$140
$160
$180
NT/HR
Electricity
Cooling145.5
$80
$100
$120
$
CostN
Cooling
Coil
49 25
37.5 11.75
$20
$40
$60
$80
35.5
49.25
$0
$20
DT 3400/9 Silica Gel
Dehumidification
Equipment Type
MODE 1-BEFORE TESTING MODE 2-AFTER TESTING
 Conditions Requirement:
22℃±2℃, RH50% ±5%
 Operation: AHU circulate
 Conditions Requirement:
22℃±2℃, RH50% ±5%
 Operation: AHU circulate
return air for 48 hours
 Space Size:
87 02 2*8 (A*H)
,
 Operation: fresh air inlet AHU
 Space Size:
40.25m2*8m (A*H)
87.02m2*8m (A*H)
 Occupants: 6
 Equipment Load:
40.25m 8m (A H)
 Occupants: 0
 Equipment Load:
Spotlight lighting
Spotlight lighting
 Surrounding Area:
22.5℃, RH50%
Spotlight lighting
 Surrounding Area:
22.5℃, RH50%
O td C diti
 Outdoor Condition:
33℃、RH 75%
 Outdoor Condition:
33℃、RH 75%

7. Product Sizing:
DT 3400/9*2+DT 800/6DT 3400/9 2 DT 800/6
Total Air Volume: 4226 CFM
Fresh Air Volume: 4226 CFMSystem Design
DT Inlet: 4226 CFM
Outdoor condition:
DB 35℃, w 177 Gr/lbDB 35℃, w 177 Gr/lb
AHU: post-cooling coil 3.7RT
$100
Operating Cost
26.3
$70
$80
$90
NT/HR
Electricity
$40
$50
$60
CostN
Cooling
Coil RT
3 1
53.5
39
$10
$20
$30
Dehumidification
3.1$0
DT 3400/9
DT 800/6
Cooling Coil
Equipment Type
AHU
DT 800/6

8. National Taiwan University –Library(Archive)
Condition Requirement:
20℃℃, RH50%±5%
Space Size:
23.4m*12.6m*9m (L*W*H)
Occupants: 2
Existing AHU:
58kW, 5400 CFM
Door Size:
Single door, 250cm*250cm
Outdoor Condition:
℃ G lb35℃、153 Gr/lb
DT Inlet: 800 CFM
Outdoor condition:
Product Sizing: DT 800/6
Total Air Volume: 5400 CFMSystem Outdoor condition:
DB 35℃, w 153 Gr/lb
AHU: post-cooling coil 6 RT
Total Air Volume: 5400 CFM
Fresh Air Volume: 100 CFM
Return Air: 4600 CFM
y
Design

9. Operating Cost
$90
$100
Operating Cost
Electricity
$60
$70
$80
tNT/HR
Cooling Coil
$30
$40
$50
Cost
RT
15
54
15
$0
$10
$20
$30
Dehumidification
E i T$0
DT 800/6 AHU
Equipment Type
The EndThe End