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open-access-imgOpen AccessANALISIS PENGARUH SUHU MINYAK KELAPA SAWIT (CPO) TERHADAP NILAI TAHANAN TERMAL MEMPERGUNAKAN PEMODELAN KURVA I(V) ISOTERMAL SENSOR PTC
Author(s)
Dellia Yulita,
Lazuardi Umar
Publication year2017
Publication title
spektra: jurnal fisika dan aplikasinya
Resource typeJournals
PublisherUniversitas Negeri Jakarta
PTC level sensor for overfill protection works based on the thermal resistance (Rw). The sensor cannot identify high-temperature fluid in the container and determine the pump switching status “ON” and “OFF”. This is due to the influence of the medium temperature on the Rw. Analysis is performed by observing the Rw value of crude palm oil (CPO) as a result of the storage temperature. The Rw value was obtained from the modeling of I (U) sensor curve of EPCOS B59050D1100 with temperature variations ranging from 20°C to 80°C. The modeled area is then determined using the isothermal curve and is resulted Rw value of 110.2K/W. The ambient temperature influence on Rw can be modeled after polynomial equation. Compare to the previous air measurement, the thermal resistance in CPO has 62.6% vary than in the air. This value can be used to determine the position of the level sensor switch safely. Keywords: level sensors, PTC, thermal resistance, CPO, isothermal
Subject(s)agroforestry , analytical chemistry (journal) , chemistry , chromatography , environmental science , isothermal process , materials science , palm oil , physics , thermodynamics
Language(s)English
eISSN2541-3392
pISSN2541-3384
DOI10.21009/spektra.022.08

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