Page 229 - Process Equipment and Plant Design Principles and Practices by Subhabrata Ray Gargi Das

Further reading 227

Table P7.3 Summary of the process design.
Project name: cooling water system
Tower Induced draft water cooling tower
Tower model ———————
Type concrete, rectangular, counterflow
Design & Operating Conditions
3
Circulating water flow, m /hr 6000

Hot(inlet) water temp. C 45

Cold(outlet) water temp. C 33

Wet-bulb temp. Inlet C 29
Ambient temp. C –

Relative humidity % –
3
3
Makeup water flow, m /hr 124 (31 m /hr per cell)
COC 5
Fan 1 per cell,
3
Suction flow rate 218 m /hr, DP ¼ 7 mmWC
Fan motor power 23.3 HP
Number of cells 4 in a row
Plan area 40 10 m
Overall tower dimension, 40,000 10,000 7000
L B Hmm
Water sump dimension, 2 L B H mm 40,000 10,000 (1750 water level þ 250 freeboard)
Casing material CONCRETE
Fill PVC C-19 fill 600 m 3
Water distributor Polypropylene nozzles
3
2
CW pump 2 nos 3000 m /hr, discharge pressure 4 kg/cm (g);
run by 400 kW motor
CW header 20 NB ANSI schedule no. 40
00

Further reading
CTI Code: Tower: Acceptance Test Code for Water-Cooling Towers; Feb, 1990 revision.
CTI Bulletin TPR-121: The evaluation of Cooling Tower Performance from Field Test Data.