DCP FIELD SERVICE REPORT
CUSTOMER
LOCATION/SITE
Plant Operator/Supervisor
WATER ANALYSIS
IFFCO
Al Shama Foods
Nusrat Ali
pH
Conductivity
TSS
T-Alk
Ca - Hds
Chloride
pH Unit
mic.siemens
ppm
ppm CaCO3
ppm CaCO3
ppm Cl
1
22
<10
3
<10
44
1008
<200
-
46
1003
<200
-
89
1940
<700
-
Make Up Water
7.91
263
Condenser Loop 1
8.81
5,760
Control Limits
<8.20
<1200
Chilled Water
9.72
1,926
Control Limits
8.5 - 10.5
< 3000
TSS - Total suspended solids
PLANT OPERATING DATA
(check operating logs)
CHW
Load
TONS
water inlet temp
Deg.C
water outlet temp
Deg.C
Delta T CT#2
Deg.C
CT Approach Temp
Deg.C
Dry | Wet bulb temp
Deg.C
PRODUCTS
PM 3686
Sodium Hypo
MS 7501
Unit
Dr
Dr
Dr
T-Alk - Total Alkalinity
REPORT DATE
SAMPLE DATE
REPORT NO.
T-Iron
Nitrite
ppm Fe ppm NaNO2
0.01
0.81
<1.0
0.23
<1.0
Hds - Hardness
975
>800
WATER CONSUMPTION
T.Phosphate Ca- Balance
ppm PO4
%
3.25
99.5%
3.50 - 5.50
90 - 100%
-
14-07-2023
14-07-2023
SR-333-2023
COC
cycles
Zinc
21.90
<2.50
3.25
1.0 - 2.0
ppm
C.O.C - Cycles of concentration
SCHEDULED CHEMICAL CLEANING
(was there any chemical cleaning done)
CDW
n/a
n/a
n/a
n/a
n/a
n/a
CHEMICAL CONSUMPTION
Opening Stock Stock received
Condenser makeup meter reading
Condenser blowdown meter reading
Chilled Water System makeup
COC based on MU/BL
Closing Stock
Consumed
m3
m3
m3
Cycle
11,660
50
N/A
21.9
where the Condensers clea
was cleaning chemical use
No
N.A
COOLING TOWER CLEANING
-
MICRO BIOLOGICAL ANALYSIS
CONDENSER WATER
CHILLED WATER
Algae Growth in Cooling tower :
Water distribution in cooling tower
Dip Slide
Value
N/A
N/A
No Alage in entire structure
Even distribution
Condenser Water System:
Very high TSS and conductivity levels noted due to difficulty for the site to drain the water and have a consistent source of makeup water quality. High alkalinity, hardness and chloride levels
The dosing system was programmed and set for pulse mode to dose the corrosion inhibitor and daily dose of sodium hypo. High COC noted.
Recommendations:
Recommend to maintain the system with the blowdown setpoint (1200) to avoid white rusting taking place on the coils. Recommend to have a good constant source of makeup water. Recommend
Alternate Office and Residential Cooling Towers more often to minimize stagnation times as it increases the potential of bacterial growth and initiates corrosion. Recommend to clean the CT.
Chilled Water System:
Currently system has nitrite as corrosion inhibitor. CoolTech has supplied NSF grade Silica based corrosion inhibitor.
Recommendations:
Recommend to drain the whole CHW network of exsiting water and top it up with MS 7501.
Prepared by:
Sharath Raju
Plant Supervisour / Operator: