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Energy Saving Cost after 1 year installed system One year after installing Elgressy EST at the United Nations building in Bangkok, we compared the chiller plant’s energy use with the original design. Clean condenser tubes brought the approach temperature down and cut electricity use. Before EST Chiller capacity 900 TR (0.66 kW/TR) Electrical load 594 […]

Approach temp. 1 year after installed sytem The chiller approach temperature is the best day-to-day indicator of how clean your condenser tubes are. This table compares the monthly approach temperatures of a Bangkok chiller plant before and after installing Elgressy EST. Approach temperature, 2013 vs 2014 (°C) Month CH-1 2013 CH-1 2014 CH-4 2013 CH-4 […]

More than 50 kg of scale was removed by EST from cooling systems in 6 months time, Amazing result! Six months after installing Elgressy EST on a client’s cooling tower system, we carried out the first routine service. When we cleaned the four EST reaction tanks, we collected more than 50 kg of scale. What […]

The volume of Scale from cooling tower after 5 days To measure how much scale Elgressy EST takes out of the cooling water, this client installed a scale filter on the EST discharge. After only 5 days of operation the filter already held a large volume of scale. Why this matters Every kilogram of scale […]