Karakterisasi Nilai Kalor Batubara Berdasarkan Pengukuran Kapasitansi Dan Resistansi

Authors

  • Tri Tazkhia Ramadhani Praha Telkom University
  • Dudi Darmawan Telkom University
  • Ahmad Qurthobi Telkom University

Abstract

Abstrak
Batubara merupakan bahan bakar alternative yang kualitasnya dapat dilihat dari kandungannya, salah satunya
seperti nilai kalor. Penelitian ini, nilai kalor akan dikarakterisasi menggunakan nilai kapasitansi dan
resistansinya. Pengukuran nilai kapasitansi menggunakan sensor kapasitif berbentuk silinder sedangkan nilai
resistansi menggunakan sensor penghubung email tembaga yang dihubungkan dengan LCR meter. Dari
beberapa frekuensi, didapatkan frekuensi sebesar 1 Khz yang menunjukan nilai kapasitansi dan resistansi yang
stabil. Dari nilai kapasitansi, secara matematis akan dipero leh juga nilai permitivitas. Sama halnya dengan nilai
resistansi, secara matematis akan diperoleh nilai resistivitas. Nilai terdapat pada sampel A dengan kalor 3.441,
terukur kapasitansi sebesar 18.26 pF dan didapatkan permitivitas sebesar 63.9 pF/m . Nilai terendah pada
sampel K dengan nilai kalor 5.626, terukur kapasitansi sebesar 14.48 pF dan didapakan permitivitas sebesar
50.6 pF/m. Sedangkan nilai resistansi dan penentuan resistivitas tertinggi pada sampel A dengan kalor 3.441
sebesar 160.1 MΩ dan didapatkan 15.200 Ω.m. Nilai terendah pada sampel H dengan nilai kalor 5.349, terukur
resistansi 7.72 MΩ dan didapatkan resistivitas sebesar 700 MΩ.m. Berdasarkan penelitian yang dilakukan,
hasil pengukuran nilai kapasitansi dan penentuan permiivitas batubara tidak berpengaruh perhadap nilai kalor
batubara sedangkan nilai resistansi dan penentuan resistivitas berpengaruh sangat kecil karna pengaruh
kandungan lain yang ada pada batubara.

Kata kunci : Batubara , Nilai kalor, , Kapasitansi, Resistansi, Resistivitas, Permitivitas
Abstract
Coal is an alternative fuel whose quality can be seen from its contents, one of which is like a caloric value. In
this study, the calorific value will be characterized using the capacitance value and resistance. Measurement
of capacitance value using a cylindrical capacitive sensor while the resistance value uses a copper email
connecting the sensor that is connected to the LCR meter. From several frequencies, we get a frequency of 1
Khz which shows a stable capacitance and resistance value. From the capacitance value, mathematically the
permittivity value will also be obtained. Similar to the resistance value, the resistivity value will be
mathematically obtained. Value is found in sample A with 3,441 calories, measured capacitance is 18.26 pF
and the permittivity is 63.9 pF / m. The lowest value in the K sample with a calorie value of 5,626, measured
the capacitance of 14.48 pF and obtained a permittivity of 50.6 pF / m. While the highest resistance and
determination of resistivity in sample A with 3,441 calories is 160.1 M 160 and 15,200 Ω.m is obtained. The
lowest value in the H sample with a calorific value of 5,349, measured the resistance of 7.72 MΩ and found a
resistivity of 700 MΩ.m. Based on the research conducted, the results of the measurement of capacitance
values and determination of coal permittivity have no effect on the calorific value of coal while the resistance
value and determination of the effect of resistivity are very small because of the influence of other content
present in coal.
Keywords: Coal, Calorific value, Capacitance, Resistance, Resistivity, Permittivity

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Published

2019-08-01

Issue

Section

Program Studi S1 Teknik Fisika