The Customer

Atlas Cycle Industries ltd., manufactures Bicycles at Sonepat (Haryana)


The Problem

The factory, 50 Kms from Delhi has 1450 KVA SKL DG Set. The Genset is cooled through Cooling Circuit connected to Cooling Tower.

The Cooling water is taken from a borewell and has the following analysis.
 

                                                                                                           pH             7.14

                                                                          Total Dissolved Solids        1900 ppm

                                                                                                Chlorides          520 ppm

                                                                                      Total Hardness          882 ppm

                                                                                 Calcium Hardness          380 ppm

                                                                          Magnesium Hardness          502 ppm

                                                                                        Total alkalinity         224 ppm

                                                                                                Sulphates         317 ppm

As the water was very hard, tough white scale formation was anticipated in the Heat Exchanger. The treatment by softening was working out to be very difficult &  expensive, therefore and COLLOID-A-TRON was installed.


The Solution

In order to prevent the formation of hard water scale depositing on Heat Exchanger a 4" COLLOID-A-TRON was installed on the main header.

On installation of COLLOID-A- TRON on 1/7/90 the performance was closely monitored. The raw water and recirculating water was analysed regularly to ascertain any deposition of scale in the oil cooler and Heat Exchanger. The Concentration level of Cooling Tower was kept at 1.5 whereby the total Hardness of recirculating water went upto 1386 ppm on 27/10/90, the Heat Exchanger was inspected and found to be free of scale. On the basis of the Performance of COLLOID-A-TRON in 1450 KVA DG set. repeat orders were placed for 3 Nos. of 500 KVA Kirloskar Cummins DG Sets and 2 Nos. of Boilers.

The Saving

Since installation of the COLLOID-A-TRON the Maintenance Department is not using any chemicals thereby saving not only direct chemical cost per month but also labour cost of dosing, monitoring and maintenance.