wonder ball

AUTOMATIC ON-LINE TUBE CLEANING SYSTEM(AOTECS)

Power consumed by the centralized Air-conditioning system makes-up a large portion of the cost of electricity bills in office building ,hotel ,factories and warehouses. This can total to as much as 40%-60% of all electyical bills paid. In central air-conditioning systems where the cooling of the central condenser unit uses shell and tubes type heat exchanger and water as the cooling medium; The formation of scaling , biological fouling and fouling caused by settling of materials in suspension (mud, slime ,etc.)in these condenser tubes decreases heat transfer by more than 40% and thus resulting in increased powder consumption as the chillers tried to maintain the level of cooling integrity.

FORMATION OF FOULING LEAD TO MAJOR INCONVENIENCES

The open loop circulationg system of cooling towers , used in most centralized air-conditioning systems in buildings, is open to pollution from the environment. Extended usage of this circulationg water deteriorates the ater quality and will lead to accumulation of fouling deposits in the heat exchanger tubes. The existence of these fouling deposits will lead to major inconveniences:

• Corrosion under deposits shortening tubes life.

• Corrosion inside the tube because of settlement of marine organisms for sea water cooling.

• Huge reduction of the heat transfer efficiency of the condenser will result in increase powder consumption.

• Increase in frictional losses through the condenser tubes will resulted in increase power consumption for the condenser water pumps.

Frequent total-shut down maintenance is therefore required to restore cooling effiency of the condenser.