CT Performance Test_IDCT-1

COOLING TOWER PERFORMANCE TEST (ID CT) Manual Input Sheet STATION: UNIT:

REPORT DATE: TEST DATE:

TEST DATA Average Hot Water Temperature Average Cold Water Temperature

T HOT WATER T COLD

WATER

TEST VALUE

UNITS

42.00

C

32.00

C

Average Inlet Air WBT

T WBT

25.00

C

Average Wind Velocity

V WIND

3.00

Meter / sec

P Act

65.00

kW

10

No.

Design CT Flow (90 %)

29790

T/Hr


33100

T/Hr


36410

T/Hr

Design Cold Water Temperature (C)

32.00

C

Design Range of Cooling Tower (C)

9.00

C

Design Approach of Cooling Tower (C)

5.00

C

9

No.

59.00

kW

2.60

meter

Actual KW of Fans during Test (Average)

No. of Cells in Service during Test DESIGN DATA

No. of Cells Design Design KW of Fans

P Des

CW Duct Inner Dia (ID)

PITOT CONSTANT DATA 1.03

Pitot Constant DATA DERIVED FROM MANUFACTURERS CURVE Expected Cold Water Temperature : 90% Flow Expected Cold Water Temperature : 100% Flow Expected Cold Water Temperature : 110% Flow

T COLD

WATER - 90%

29.00

T COLD

WATER - 100%

30.00

T COLD

WATER - 110%

31.00

From CT [90%] Characteristic curve From CT [100%] Characteristic curve rom Characteristic curve

Important Notes: 1

For For Flo Flow w ca calcu lculati lation on,, ma manome nomete terr val value ues s to to be be ent ente ered red in in Xmi Xmin n and and Ymax Ymax in cm of of w

2

For For cells cells "U 14" 14" & "W 14" 14" the the for formu mula la to to be mod modifi ified ed as as per per the the form formula ula in the the curv curve e

3

To find find out out the the pred predic icte ted d CT CT flo flow w pro proce ceed ed as foll follow ows: s:

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Select cell "W 14", go to tools menu and and select the Goal seek option. In the goal seek menu in the second row put the actual test cold water temperature In the third row of the goal seek menu select cell "V 14" and click OK







3 PORT HYDRAULIC PITOT TRAVERSE

S.No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

CW Duct CT # - Vertical Test Port Xmin Ymax DP cm of cm of cm of Velocity wcl wcl wcl m/sec

CW Duct CT # - Ho Xmin Ymax DP cm of cm of cm of wcl wcl wcl

75.00 73.00 72.80 73.50 73.50 74.00 73.00 72.00 73.00 72.30 72.00 72.80 72.00 72.20 71.00 71.00

82.20 82.10 81.00 81.60 81.80 82.00 82.00 82.20 81.80 82.50 82.00 81.00 81.20 81.00 81.00 81.00

81.50 83.50 84.00 82.50 82.50 81.50 83.00 84.50 83.00 83.50 84.20 83.80 84.50 84.50 85.50 85.00

6.50 10.50 11.20 9.00 9.00 7.50 10.00 12.50 10.00 11.20 12.20 11.00 12.50 12.30 14.50 14.00

10.87 Avg CW Velocity [m/s]

1.51 =

1.54

93.00 92.80 93.80 94.00 94.00 93.00 93.20 92.80 93.50 92.50 92.50 94.50 94.50 94.50 95.00 95.00

10.80 10.70 12.80 12.40 12.20 11.00 11.20 10.60 11.70 10.00 10.50 13.50 13.30 13.50 14.00 14.00

12.01 Total CW Flow [Tons/Hr]







value

9.81 2 19.62 0.442945 0.9418 0.417165

0.4568 1.03128







rizontal Test Port Velocity m/sec

CW Flow T/Hr 29790

29.00

33100

30.00

36410

31.00

29,534

1.58

29,534.48

28.86

40000

32.00















Variation Between CW Flow Vs Expected Cold Water Temperature

31.50

] 31.00 C [ e r u

y = 0.0003x + 20







d e t c e p 29.00 x E 28.50 0

10000 20000 30000 CW Flow Rate [Tons/Hr] [Tons/Hr]













40000







COOLING TOWER PERFORMANCE TEST (ID CT) - REPORT STATION: UNIT:

FIELD TEST PARAMETERS Average Hot Water Temperature Average Cold Water Temperature Average Inlet Air WBT Average Wind Velocity COMPUTATION OF EXPECTED COLD WATER TEMPERATURE Average Inlet Air WBT Average CW Cooling Range Expected Cold Water Temperature : 90% Flow Expected Cold Water Temperature : 100% Flow Expected Cold Water Temperature : 110% Flow

Expected Cold Water Temp: Actual Flow

REPORT DATE: TEST DATE:

UNITS C C C m/sec

TEST VALUE 42.00 32.00 25.00 3.00

C C C C C

25.00 10.00 29.00 30.00 31.00

C

28.86

CORRECTION IN EXPECTED COLD WATER TEMPERATURE DUE TO WIND Correction factor due to Wind Velovity C Expected Cold Water Temp C RESULTS DESIGN EXPECTED Cold Water Temperature (C) 32.00 29.18 Cooling Range of Cooling Tower (C) 9.00 12.82 Approach of Cooling Tower (C) 5.00 4.18

0.32 29.18 ACTUAL 32.00 10.00 7.00









Wind Increase in Velocity CW Temp m/sec Deg C 0.833 0 1 0 2 0.12 3 0.38 4 0.5 5 0.57 Average Wind Velocity (m/sec) Increase in Cold Water Temp

Wind Velocity Correction Fa 0.7 0.6

3.00 0.3

) C ( 0.5 e s 0.4 i r p 0.3 m e 0.2 T W 0.1 C

y = 0.15x - 0.134 0.134

0

-0.1 0

2 Wind Velocity (m/se







ctor

6 c)

CT Performance Test_IDCT-1

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