Summarize Performance test report SCG-DPEX - Rev00PTSC.pdf

รายงานสรุปผลการทดสอบประสิทธิภาพ Cooling Tower จากโครงการ SCG-DPEX (Rev.00) จัดทำโดย PTSC (Precision Tooling & Service Center)
เพื่อตรวจสอบและยืนยันค่าประสิทธิภาพการระบายความร้อน, อัตราการไหลของอากาศ (Air Flow), และค่าการประหยัดพลังงานตามมาตรฐานอุตสาหกรรม

📊 เนื้อหาในรายงานประกอบด้วย:

สรุปข้อมูลการทดสอบ Cooling Tower (Test Condition & Parameters)

ผลการวัดอุณหภูมิ Inlet / Outlet และอัตราการระเหย

กราฟเปรียบเทียบประสิทธิภาพก่อน–หลังการปรับปรุง

สรุปผลการประหยัดพลังงานและแนวทางเพิ่มประสิทธิภาพในอนาคต

📍 จัดทำโดยทีมวิศวกรผู้เชี่ยวชาญจาก PTSC เพื่อยืนยันผลลัพธ์การปรับปรุงประสิทธิภาพของระบบ Cooling Tower ให้สอดคล้องตามมาตรฐานการทดสอบสากล

#CoolingTower #PerformanceTest #PTSC #EnergySaving #IndustrialCooling #SCGDPEX #CoolingSystem #EngineeringThailand #HeatExchange #TestingReport #SmartFactory #Sustainability

1. PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.
0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
www.ptsc.co.th Page 1
PERFORMANCE TEST REPORT
Project Name : Cooling Tower
Location : Thailand, Rayong, Mat ta phut
Test date : 12 Apr 2016 (Airflow test)
26 Apr 2016 (Performance test)
Tested By : Mr.Suttirak P.
Report Date : 29 Apr 2016
Written by : Mr.Kittiwat S.
PERFORMANCE TEST REPORT
Customer name:  Project name:  
Cooling Tower Improvement 
Work No.: PTR-6205-001-Rev00 

2. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
www.ptsc.co.th Page 2
INTRODUCTION
The purpose of this test measure cooling tower performance and
airflow of cooling fan for commissioning after cooling tower
has been improved
A. TEST EQUIPMENT
-Circulating flow : Ultrasonic flow meter, Deltawave C-P
- Wind speed : Anemometer, BK Precision 731A
- Ambient condition : Temperature humidity meter, Fluke 971
- CWS / CWR Temperature : Thermometer, Fluke 51 II
- Fan power consumption : Power quality meter, Fluke 1735
- Airflow : Micro manometer, Fluke 992
B. STANDART AND REFERENCE TEST
- Cooling tower performance test : CTI ATC105, CTI PFM 143
C. CALCULATIONS
1)






































=





d
t
d
t
t
d
wd
wt
dt
W
W
Q
Q
G
L
G
L υ
υ
ρ
ρ
3
1
3
1
Where
(L/G)
d = Ratio of mass flow rate of water to air from the
manufacturer’s design data.
υ = Specific volume of air, either test (t) of design (d)
ρ = Density of air, either test (t) of design (d)
W = Fan driver output power, either test (t) of design (d)
Q
w = Circulation water flow rate, either test (t) of design (d)
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.

3. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
www.ptsc.co.th Page 3
2) Tower Capability
di
G
L
G
L
C 











×=1
00
Where:
C = Tower capability
(L/G)
i = L/G intercept
(L/G)
d = L/G design.
3) Air flow test
The temperature data measured was used with the barometric
pressure of 29.57 in. Hg to be used for calculation the air density at
traverse point. And then, air velocity is calculated from the velocity
pressure using the following relationship.
2
1
096,1





×=
D
VP
V
Where;
V = Air Velocity (ft/min)
VP = Velocity Pressure (in. H
2O)
D = Air Destiny (Ib/ft
3
)
D. Test Condition
The tower capability of mechanical draft tower is calculated from
the major test parameters of circulating water flow rate, cooling range,
cold water temperature, inlet air wet bulb temperature, and fan motor
power. The wind speed value is not used to calculate tower capability,
but is used as quality indicator of ambient condition stability. The
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.

4. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
www.ptsc.co.th Page 4
following table indicates the recommend limit on variation of
conditions details in CTI ATC-105 test code
Performance test on Apr 26, 2016 and condition as below;
Measured
parameter
Max Deviation
Design Testing Deviation
In / out of
range
Water flow ± 10 % 2,220 2,089.2 -5.89 % In
Cooling range ±20% 8.5 7.14 -15.98 % In
Wet bulb ± 8.5
o
C 28.5 28.83 +0.33
o
C In
Fan power ±10% 49.5 43.20 -12.74 % Out
Wind speed <4.5 m/s avg. - 1.65-1.72 <4.5 m/s In
Remark : Performance testing to be used circulation water flow 2,220
m
3
/s and 2 cell running as this condition have performance curve
same with circulation water flow 3,330 m
3
/s and 3 cell running
E.TOWER CAPABILITY CALCULATION
From the original cooling performance curve at 90%, 100% and
110% flow we use performance curve method to find out with CTI
toolkit 3.0
CALCULATE RESULT:
Performance test for cooling tower commissioning
From Cross plot #2, Predicted flow can be found as below;
Predicted Flow (Q
wt pred
) = 642.8 L/s
From below equation, adjust flow can be calculated as below;
( )( )
3
1
3
1
dttdw
twtadj
WWQQ ρρ×=
Adjust Flow (Q
wt adj
) = 608.5 L/s
Tower Capabilities before maintenance = 100 x (Q
wt adj
/ Q
wt pred
)
= 94.66 %
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.

5. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
www.ptsc.co.th Page 5
Performance curve at 90% water flow

Performance curve at 100% water flow
Flow = 617 l/s
Wet Bulb Temp
3
4
3
3
3
2
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
C
old Water Temp
36
34
32
30
28
26
24
Flow = 555 l/s
Wet Bulb Temp
3
4
3
3
3
2
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
C
old Water Temp
36
34
32
30
28
26
24
22
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.

6. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
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Performance curve at 110% water flow

Cross plot #1
At 28.83 °C Test Wet Bulb
Cooling Range
1
0
987
C
old Water Temp
34
33
32
Flow = 678 l/s
Wet Bulb Temp
3
4
3
3
3
2
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
9
1
8
1
7
1
6
1
5
C
old Water Temp
38
36
34
32
30
28
26
24
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.

7. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
www.ptsc.co.th Page 7
Cross plot #2
At 28.83 °C Test Wet Bulb and 7.34 °C Test Range
Water Flow Rate
6
70
6
60
6
50
6
40
6
30
6
20
6
10
6
00
5
90
5
80
5
70
5
60
C
old Water Temp
34
33
32
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.

8. 0 29-Apr-16 Performance report for approval Kittiwat Somsamai / PTSC
No. Date Description Prepare/Check Client
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F: SUMMARIZE TEST RESULT
Description Unit Design Testing
Test date - - 26-04-2016
Circulating water flow
2 Cell running
m
3
/ hr 2,220.00 2,089.20
L/s 616.67 580.33
Wet bulb temperature Deg C 28.50 28.83
Dry Bulb temperature Deg C 33.34 34.77
Hot water temperature Deg C 41.25 39.97
Cold water temperature Deg C 32.75 32.83
Fan power kW 49.5 43.20
Tower capability % 100.00 94.66
Cell
Airflow (m
3
/s) Power (kW)
Design Actual Design Actual
MB-230A 162.74 166.93 49.5 47.05
MB-230B 162.74 162.31 49.5 46.88
MB-230C 162.74 168.70 49.5 47.83
PERFORMANCE TEST REPORT PRECISION
TOOLING SERVICES CO., LTD.