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All Journal Journal of Environmental Engineering and Sustainable Technology Jurnal Indonesia Sosial Teknologi
Ruwantari, Ira Nur
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Environmental Science Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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REDUCING GREENHOUSE GAS (GHG) EMISSIONS THROUGH SOLAR CELL PHOTOVOLTAIC PLANNING AT AL-JIHAD ISLAMIC BOARDING SCHOOL IN SURABAYA Auvaria, Shinfi Wazna; Agung, Tri Sunan; Ruwantari, Ira Nur; Karami, Abdillah Akmal
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 02 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.02.2

Abstract

Currently, 80% of conventional energy is used to meet the needs of industry and the general public. Using new, renewable energy from the sun is an effort to mitigate climate change by reducing greenhouse gases (GHG). Al-Jihad Boarding School, an Islamic educational institution with around 1,200 students, is one of the biggest consumers of conventional energy. This study aims to plan photovoltaic solar cells, calculate the amount of power that can be generated, calculate the amount of GHG emission reduction from photovoltaic solar cells and the costs required for installation at Al-Jihad Islamic Boarding School. The planning results were analyzed by adjusting the selection of a 12 KVA inverter, 44 polycrystalline photovoltaic solar cells, and other complementary materials such as cables, MCBs and supports. The amount of power generated from photovoltaic solar cells at the Al-Jihad Islamic Boarding School in Surabaya is 12 kWh. Climate change mitigation efforts by reducing GHG emissions through solar cell photovoltaic planning at the Al-Jihad Islamic Boarding School in Surabaya can reduce CO2 greenhouse gases by 1,200.5 kg, NH4 30.013 kg, and N2O 0.019 kg. The cost required for the installation of photovoltaic solar cells is Rp. 209,850,400.
Utilisation of Sandal Waste From Home Industry in Kepuh Kiriman Village, Waru District, Sidoarjo Regency, As Coarse Aggregate Material in Mixing Materials For Paving Block Production Ruwantari, Ira Nur; Nurmaningsih, Dyah Ratri; Yusrianti, Yusrianti
Jurnal Indonesia Sosial Teknologi Vol. 5 No. 01 (2024): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v5i01.879

Abstract

Industrial activity is one of the factors that supports the growth of the economic sector. One industry that is currently proliferating is rubber sandal waste. This paper will use a mixture of rubber sandal waste as a coarse aggregate material. Sandal waste can be reused to produce products with a sale value, such as a mixture for making paving blocks. They were paving blocks that will be made using B-quality K-200. This paper aimed to determine compressive strength, water absorption, and SEM results. The method which is used in this research is descriptive quantitative. Paving Variations in sandal waste used in this study were 0%, 10%, 15%, and 20% of the volume of coarse aggregate. The optimal results produced are a 15% variation with a compressive strength age of 28 days with an average value of 18.8 MPa, a 10% variation with a compressive strength age of 7, and 14 days with an average value of 21.2 MPa and 21.8 MPa. The most optimal water absorption test results are at 10% variation with an average value of 5%. SEM test results with 15% and 20% variations showed a high air void content and microcracks spread in the specimen's topography. Meanwhile, at 0% and 10%, the spread of microcracks is insignificant, and the test object has a reasonably high density.
Co-Authors Agung, Tri Sunan Auvaria, Shinfi Wazna Dyah Ratri Nurmaningsih Karami, Abdillah Akmal Yusrianti, Yusrianti