Pengukuran Konduktivitas Termal Dengan Metode Komparatif Pada Material Termoelektrik

Marifatin, Indah (2021) Pengukuran Konduktivitas Termal Dengan Metode Komparatif Pada Material Termoelektrik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini dilakukan untuk mengetahui cara mengukur konduktivitas termal dengan metode komparatif, mengetahui nilai konduktivitas termal dari masing masing sampel, dan mengetahui pengaruh nilai porositas terhadap konduktivitas termal. Pengukuran dilakukan dengan menggunakan variasi dua jenis bahan yaitu tipe-n Bi0,58Te1,42 dan tipe-p Sb0,405Te0,595 dan dua ukuran sampel yaitu (4×4×4) mm3 dan (6×4×4) mm3. Pengukuran konduktivitas termal dengan metode komparatif yaitu heater, termokopel 1, logam aluminium, termokopel 2, sempel, termokopel 3 dan heat sink disusun secara seri untuk mendapatkan data T1, T2, dan T3 tiap kenaikan suhu ruang 30 oC hingga 300 oC. Data yang diperoleh melalui pengukuran kemudian digunakan untuk menghitung nilai konduktivitas termal. Berdasarkan hasil yang diperoleh pada penelitian ini, nilai konduktivitas termal terendah yaitu Bi0,58Te1,42 (4×4×4) mm3 sebesar 4,12 W/(mK). Konduktivitas termal pada material termoelektrik akan semakin kecil pada porositas yang semakin kecil pada tiap variasi sampel. Pada sampel Bi0,58Te1,42 (4×4×4) mm3 didapatkan nilai porositas terkecil sebesar 0,087 %. ===================================================================================================== This research was conducted to determine how to measure thermal conductivity using a comparative method, determine the value of the thermal conductivity of each sample, and determine the the effect of the porosity value on thermal conductivity. Measurements were made using variations of two types of materials, namely n-type Bi0,58Te1,42 and p-type Sb0,405Te0,595 and two sample sizes, namely (4×4×4) mm3 and (6×4×4) mm3. The measurement of thermal conductivity using a comparative method, namely heater, thermocouple 1, aluminium metal, thermocouple 2, sample, thermocouple 3 and heat sinks are arranged in series to find T1, T2, and T3 for every 30 oC to 300 oC room temperature increase. The data obtained through measurements are then used to calculate the thermal conductivity value. Based on the results obtained in this study, the lowest thermal conductivity value is Bi0,58Te1,42 (4×4×4) mm3 at 4.12 W/(mK). The thermal conductivity of the thermoelectric material will be smaller at the smaller the porosity for each sample variation. In the sample Bi0,58Te1,42 (4×4×4) mm3, the smallest porosity value was 0,087 %.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: konduktivitas termal, metode komparatif, porositas, sampel, temperatur thermal conductivity, comparative method, porosity, sample, temperature
Subjects: Q Science > QC Physics > QC111 Density and specific gravity
Q Science > QC Physics > QC271.8.C3 Calibration
Q Science > QC Physics > QC271 Temperature measurements
Q Science > QC Physics > QC320 Heat transfer
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2950 Thermoelectric materials.
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User: Indah Marifatin
Date Deposited: 07 Mar 2021 18:21
Last Modified: 07 Mar 2021 18:21
URI: https://repository.its.ac.id/id/eprint/83690

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