ThaiScience
ThaiScience
ENGINEERING JOURNAL CHIANG MAI UNIVERSITY
Volume 25, No. 03, Month DECEMBER, Year 2018, Pages 233 - 242
Compressed air system energy reduction based on production plan
Titinan Sungthong and Jeerapat Nagoprasertwong
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The Utilities Department of a detergent production factory is responsible for supplying electricity, water, steam, and natural gas to the Production Department. It is found that the proportion of electricity consumption in the compressed air system is inconsistent with the production. This means that the supervising unit does not manage the production of compressed air in accordance with the production plan causing the energy waste. The energy consumption was averagely 124,862 kilowatt hours per month costing 434,519 baht per month which is 17% of the total energy consumption in the factory. Therefore, it is desirable to reduce energy use by supplying the compressed air in accordance with the production plan. This research analyzes the compressed air data for the controlling valves by studying the relationships between the flow rate of compressed air used in liters per second at the pressure of 6.5 bar. From the amount of detergent yield and the number of machines used in the detergent filling process, it is found that the flow rate (liters per second) with statistical relations at the confidence level of 95% and R2 = 74.79%. Then, the flow rate obtained from the equation will be planned to turn off the air compressor in advance following the production plan. It is found that the reduction of electricity in the compressed air system can be assessed for 186,125 kWh per year saving 651,439 baht per year.
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Published by : Faculty of Engineering Chiang Mai University
Contributions welcome at : http://researchs.eng.cmu.ac.th/?name=journal
