Monday, January 10, 2011 1:38 PM
Knowledge Center
SCALE GUARD
Comparison between Chemical Dosing and Scale Guard
| S. NO. | FACTORS | CHEMICAL DOSING | SCALE GUARD |
| 1. | Composition of Water | As the descaling is done by acids, they attack copper tubes of the heat exchanger and sometimes puncture them. | No corrosion risk. |
| 2. | Recurring Cost | A recurring expenditure of descaling chemicals. | No Recurring Cost |
| 3. | Prevention of Scale | One time process. Scale formation continues. It does not prevents, it’s a cure. | Prevents scale formation and removes existing scales from pipelines and condenser tubes |
| 4. | Maintenance | Requires daily maintenance and check of water quality | No maintenance required except normal plant maintenance. |
| 5. | Man Power | Requires extra manpower for monitoring and dosing of chemicals. | No man power required as SG is an online equipment |
| 6. | Energy Consumption | Energy required for running chemicals in condenser tubes | No energy required for operation thus saves the electricity bill. |
| 7. | Life of equipment | As the copper tubes are attacked frequently,it reduces the life of equipment | As tubes are maintained scale free and no descaling is done it increases expected life. |
| 8. | Inventory | Extra space for storing chemicals | No space is require as it is installed on line. |
| 9. | Risk Factor | High risk of burn injury and accidents due to negligence as chemicals are hazardous in Nature | No Risk |
| 10. | Pay back | Nil. Adds on recurring cost per financial year. | Low payback period |