 | |||||||||
| |||||||||
| |||||||||
| |||||||||
| |||||||||
| |||||||||
| |||||||||
 | ||||||||||
 | ||||||||||
| ||||||||||
Case Study - Eco Wise Plastics | ||||||||||
An innovative cooling plant combining chiller and an “Air-Blast” fluid cooler to provide a major plastics facility in Quebec with extraordinary water and energy savings. | ||||||||||
System Requirement | ||||||||||
The customer’s initial requirement called for most of the load to be chilled water type cooling as the temperature requirement was stated to be within the range of 7º to 25º C. After a thorough review and understanding of customer’s process, it was suggested to the client that most of the load could successfully operate at higher supply temperatures. The customer approached the process equipment supplier with this idea and they agreed to make a few small (no-charge) modifications to accommodate the suggestion. This simple suggestion resulted in the majority of the load being satisfied with ambient produced cooling rather than high horsepower mechanical cooling. The result was now only 22% of the load would require a chiller supplying mechanical cooling at 7ºC while the balance (78%) could be satisfied with cooling at 30º to 35ºC. | ||||||||||
The Challenges | ||||||||||
The most energy efficient solution would be to utilise ambient based cooling equipment and the most environmentally friendly solution would be a sealed “Air-Blast” fluid cooler that consumes no water (there is no need to treat the inlet air with a misting system to achieve temperature). Also, there would be no evaporative cooling requiring water make-up as required by an evaporative cooler, or a need for introducing water for temperature trimming, nor will the system require the constant attention of chemical treatment. However such a system would not be able to attain and maintain the lower temperature requirement during the hotter summer months. To meet the 7ºC requirement a chiller would have to be used in conjunction with the fluid cooler. |
The Solution
Berg designed an “Eco-Wise” system that integrates both the “Air-Blast” cooler and a chiller. The system is equipped with Berg’s “Eco-Trol” controls that automatically allows for a seamless transfer between the “Air-Blast” cooler and the chiller. The “Air-Blast” cooler will satisfy all of the process demands for most of the year, even taking advantage of a cooler spring and fall nights. The chiller takes over to supply the portion of the process that requires 7ºC when ambient temperature rises above 2ºC.
Savings and Payback
Applying the Berg “Eco-Wise” system the customer stands to save approximately $100,000 in annual operational costs due to energy, municipal water usage and chemical treatment savings. The system payback is less than two years and the customer will continue to enjoy these savings for many years to come providing them with a competitive advantage.
 |  |  |  |  |
| BERG Chilling Systems Inc. - Toronto Ontario Canada Industrial Refrigeration / Commercial Refrigeration / Process Pumps / Process Cooling Systems / HVAC Systems / Cooling Towers Tel: +01 (416) 755-2221 Fax: +01 (416) 755-3874 Email: bergsales@berg-group.com |