Nguyen B, Le P. Application of frequency inverter in pump control to increase Chiller system efficiency: Theoretical research, experiment and practical implementation in Vietnam. VNUHCM Journal of Engineering and Technology [Internet]. 31Dec.2024 [cited 23Apr.2025];7(4):In press. Available from: http://stdjet.scienceandtechnology.com.vn/index.php/stdjet/article/view/1411