Thermal Distribution Analysis of Heating System for Optimization of CO2 Gas Sensor Detection
Dwi Putri Desti Utami (a*), Aldi Rijaldi (a), Amalia Nurfitriani (a), Gulistan Amalia Rahman (a), Siti Inna Zainab (a), Rossie Wiedya Nusantara (b), Yuyu Rahmat Tayubi (a), Ahmad Aminudin (a*), Mimin Iryanti (a*)

a) Physics Study Program, Department of Physics Education, Faculty of Mathematics and Natural Science Education, Indonesia University of Education, Jalan Dr. Setiabudhi, No. 229, Bandung 40154, West Java, Indonesia
*dwiputridu18[at]gmail.com; aaminudin[at]upi.edu; mimin_iryanti[at]yahoo.com

b) Department of Soil Science, Faculty of Agriculture, Tanjungpura University, Jalan Prof. Hadari Nawawi, Pontianak 78124, West Kalimantan, Indonesia

Abstract

Soil takes a big role as a source of excess CO2 gas emissions that can be the cause of global warming, mainly peat soils that contain a lot of organic matter. One of the factors that influence is soil temperature. The research aims to analyze the temperature distribution at the surface of the soil to optimize the detection of CO2 gas sensor for soil by designing an appropriate heating system. The method used is an experimental method. Research using peat soil placed in the chamber, the heater was placed on it, and a number of thermometer-digitals are placed at several points on its surface in the x-axis and y-axis by plotted distance from the heater is 5cm, 10cm, and 15cm. Temperature alterations toward time can be observed by thermometer and stopwatch. The temperature distribution at the surface of soil occurs evenly in the radial direction, and further the distance of soil from the heater, the less its influence toward temperature alteration of soil. At plotted distance of 5cm, the temperature alteration toward time is 0.0019oC/s, at 10cm is 0.0004oC/s, and at 15cm is 0.0001oC/s. Based on it, the optimal distance used in the design of the heating system is 5cm and 10cm, and CO2 gas sensor successfully detected CO2 gas on it. This result can be used as supporting data in designing a heating system for portable CO2 concentration gauge for soil.

Keywords: Temperature distribution; Temperature alteration; Peat soil

Topic: Physics