Ali Mahmudi, Parno Rahardjo


Thermography is a predictive maintenance technique that can be used to identify machine breakdowns. Thermography has been widely applied, especially for monitoring purposes of thermal fluid engines and heat exchangers. This paper discusses the monitoring of heat distribution that occurs in a multistage centrifugal pump system with closed flow circulation. Excessive heat in a centrifugal pump system can be an indicator of damage to the pump system. The test was carried out on a nine-stage centrifugal pump with closed flow circulation, which has a power of 7.5 HP, a head of 170 m, a speed of 1450 rpm and a flow rate of 8 m3/hour. The test was carried out on a fully open discharge pressure valve which was carried out starting from 30 minutes to 120 minutes with a range of 15 minutes. The test results show that the temperature increase that occurs in each component is clear and significant. The highest temperature occurs in the pump bearing non drive end, then followed by the  pump bearing drive end, pump body, coupling, motor bearing drive end, and motor body. The fastest increase occurs in the pump body.

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DOI: https://doi.org/10.31884/jtt.v8i2.379


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