Aplikasi Kontrol PI (Proportional Integral) pada Katup Ekspansi Mesin Pendingin

Rudiyanto, Bayu and Susanto, Agus and Susmiati, Yuana (2016) Aplikasi Kontrol PI (Proportional Integral) pada Katup Ekspansi Mesin Pendingin. Rona Teknik Pertanian, 9 (2). 89`-105. ISSN 2528-2654

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Abstract

This research aim to do design process and making control valve expansion automatic by using control system PI, which then applied on refrigerator plates touch to perform the process of control freezing temperatures. Censor temperature LM35 used in this research to do reading the temperature at evaporator room, of results reading sensors is usedas input signal to control system PI. Based on the test result of testing censor LM35 have the sensitivity reading of almost accordance with the datavsheet is as much as 0,009335 V/oC. Were control sistem works PI the research this obtained responsegoodto valuecenter Kp = 20 and Ki =10. In which value, to reach set temperature point , the time it takes 251 seconds by value maximum overshoot point lower then -2.4°C. The result of this research shows that using, control system valve expansion automatic obtained the process of cooling faster and the energy needed is more efficient, is a much as 0.265 kWh.

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