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All Journal JURNAL PENDIDIKAN TAMBUSAI Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Journal of Climate Change Society
Yendri Sudiar, Nofi
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences

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Analisis Pemanfaatan Biobriket Dari Limbah Kulit Kopi Sebagai Basis Pengembangan Energi Terbarukan: Artikel Review Sri Aulia Noprianti, Nadia; Hamdi, Hamdi; Yendri Sudiar, Nofi
Journal of Applied Mechanical Engineering and Renewable Energy Vol 4 No 2: August 2024
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jamere.v4i2.837

Abstract

This review article aims to explore various techniques used in the production of biobriquettes from coffee skin waste with a variety of materials and methods. Based on the literature study conducted, several studies were found related to the production of biobriquettes from coffee waste using various methods such as briquetting, torefaction, and experimental methods. The main raw materials used include coffee grounds, coffee skin, paper, and sawdust. The adhesives used were tapioca flour, pine resin, and biotany flour. The results showed that the calorific value of the biobriquettes produced ranged from 3489-8180 calories/gram, with the highest value produced by certain composition variations. The biobriquettes produced generally meet SNI standards as an alternative fuel. This article is expected to provide a comparison between various methods and compositions in producing quality biobriquettes from coffee waste.
Analysis of Carbon Stocks in Mangrove Forest Areas in Padang City Nanda, Popi; Yendri Sudiar, Nofi; Akmam, Akmam; Amir, Harman
Journal of Climate Change Society Vol. 1 No. 2 (2023)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol1-iss2/14

Abstract

Global warming is caused by the disruption of the energy balance between the earth and the atmosphere. Carbon emission is the process of releasing greenhouse gases into the atmosphere due to human activities. High carbon emissions contribute to climate change. This climate change can have serious impacts on human life and ecosystems. Mangrove forests are one of the most carbon-rich forest types in the tropics. Mangrove areas are declining rapidly due to logging for the expansion of aquaculture ponds and infrastructure development. The data collection method used in this study is a survey method with field survey techniques (observation). Calculation of tree biomass and carbon stocks using allometric equations based on plant species and stem diameter.Carbon reserves in mangrove forests in general in the city of Padang amounted to 3,682.06 tonnes from 78 ha of mangrove forests. While the mangrove forest ditaluak buo can absorb 895.72 tonnes from 49 ha of mangrove forest. Based on carbon reserves, mangrove forests in the city of Padang are able to absorb 4,577.78 tons from 120 hectares of mangrove forest area in the city of Padang or around 38.90 ppm. Based on the results of the research, the value of Carbon Reserves in Taluak Buo is 4.97 tonnes / ha of 334 mangrove stems and is able to absorb or reduce carbon emissions by 18.28 tonnes / ha and the type of Sonneratia caseolaris is the largest contributor. Mangrove forests in Taluak Buo can absorb 9.45% of carbon emissions. The contribution of mangrove forests in the city of Padang is able to absorb 38.90 ppm while carbon emissions are 411.54 ppm. This means that the Mangrove Forest has not been able to clean up carbon emissions in the city of Padang and can be called that the city of Padang is a less healthy city
Systematic Literature Review of Ocean Wave Renewable Energy Nuryadi, Ari; Yendri Sudiar, Nofi; Hamdi
Journal of Climate Change Society Vol. 1 No. 2 (2023)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol1-iss2/16

Abstract

Renewable energy is a concern to overcome the limitations of fossil energy, one type of renewable energy is ocean wave energy. There are various research topics related to the development of ocean wave energy potential carried out by countries in the world, for this reason the authors conducted a review related to journal papers that discuss ocean wave renewable energy. The method for this study used a Systematic Literature Review (SLR) on journal papers published from 2008-2023, a total of 44 journal papers. The three research questions contained in this study so as to obtain research results that the most countries that carry out research related to ocean wave renewable energy are China. There are a total of nine topics discussed related to ocean wave renewable energy with the most frequently discussed topic trends related to the utilization and modeling of ocean wave renewable energy.
Microclimate Characteristics in Mangrove Forest Areas in Padang City Aditio, Rama; Yendri Sudiar, Nofi; Dwiridal, Letmi; Amir, Harman
Journal of Climate Change Society Vol. 1 No. 2 (2023)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol1-iss2/17

Abstract

Mangrove forest microclimate is the climatic conditions that occur in mangrove forests. The research aims to determine the conditions and characteristics of the microclimate (air temperature, air humidity and light intensity) in the mangrove forest area. The research location was chosen in the Taluak Buo mangrove forest area because the conditions and characteristics of the microclimate are not yet known. The data used is prime data obtained from direct measurements in the field. Measurements of several weather elements were carried out three times, namely in the morning (07.00-08.00 WIB), in the noon (12.00-13.00 WIB), and in the afternoon (17.00-18.00 WIB) for 7 days at three observation points using an anemometer instrument. The results obtained from this research in the Taluak Buo mangrove forest area in the Bungus Teluk Kabung sub-district are an average daily air temperature of 26.94°C in the forest, 27.94°C at the position on the edge of the forest and 28.6°C at outside the forest. The average difference in air temperature between inside the forest and outside the forest is between 1,22-2,14°C. On the other hand, the difference in air humidity is 5-6%. The average difference in sunlight intensity between inside the forest and outside the forest is between 3.923,44-22,462,66 lux. The air temperature and intensity of sunlight inside the forest is lower than at the edge and outside the forest, which is inversely proportional to the higher air humidity inside the forest.
Menciptakan energi baru dengan biogas dari kotoran sapi Erianto, Fajar Darma Utama; Hamdi; Yendri Sudiar, Nofi
Journal of Climate Change Society Vol. 2 No. 1 (2024)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol2-iss1/20

Abstract

Energi yang dihasilkan oleh kotoran sapi melalui mekanisme fermentasi yang mana gas yang dihasilkan dari kotoran sapi difermentasikan sehingga gas yang dihasilkan akan semakin berguna dan bermanfaat secara ekonomi . Untuk mengatasi kelangkaan dibidang energy maka kita harus menciptakan mekanisme proses pembuatan energy yang bersifat baru dan alternative. Untuk energi alternatif tersebut maka harus ada mekanisme yang handal agar energi yang dihasilkan maksimal dan relevan. Untuk metode yang digunakan dalam literasi yang berkaitan dengan energy terbarukan khususnya energy alternatif yang dihasilkan dari kotoran sapi dengan menggunakan studi literatur dari beberapa jurnal dan artikel yang berstandar internasional
Systematic Literature Review Method for Identifying Efficiency and Photovoltaic Technology as a Renewable Energy Innovation Audia, Washilla; Yendri Sudiar, Nofi; Hamdi; Yulkifli; Nofriandi, Alwi
Journal of Climate Change Society Vol. 2 No. 1 (2024)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol2-iss1/24

Abstract

Photovoltaics or solar cells are a device that can convert/convert solar energy into electrical energy. The use of photovoltaics as a renewable energy innovation is very necessary in developing photovoltaic technology and increasing the efficiency of the energy produced. The main electricity supply is PLN, which is not always continuous in its distribution due to the limited availability of fossil energy. This can result in disruption of human activities and productivity. The technology developed is organic and inorganic photovoltaic technology. Photovoltaic efficiency refers to the ability of solar panels to convert sunlight energy into electrical energy. Currently it is not known how much technology has been developed by photovoltaics and the efficiency that photovoltaics have produced. This research aims to identify developments in photovoltaic efficiency research and technology used in the world whose data was obtained from related journals in 2013-2022. There are 1,503 studies related to photovotaic efficiency. The method used in this research is the Systematic Literature Review (SLR) Method. The SLR method is used to identify, review, evaluate, and interpret all available research on a topic area of ​​interest, with specific relevant research questions. By using the SLR method, a systematic review and identification of journals can be carried out, with each process following predetermined steps or protocols. The research results show that the technology that is widely used in developing photovoltaic efficiency is organic photovoltaic technology and the highest efficiency that has been obtained is 38.9%.
Pengaruh ENSO dan IOD Terhadap Curah Hujan di Indonesia Fadila, Husnul; Yendri Sudiar, Nofi; Razi, Pakhrur; Zulhendra, Zulhendra
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Penelitian ini memiliki tujuan untuk mengkaji pengaruh fenomena ENSO (El Niño Southern Oscillation) dan IOD (Indian Ocean Dipole) terhadap pola curah hujan di Indonesia. Fenomena ENSO dan IOD dipengaruhi oleh perubahan suhu permukaan laut, dengan IOD terjadi di wilayah tropis Samudra Hindia dan El Niño-La Niña di Samudra Pasifik. Data yang digunakan dalam studi ini mencakup Indeks Niño 3.4, Indeks Dipole Mode, serta data curah hujan. Hasil penelitian menunjukkan bahwa di stasiun dengan tipe curah hujan monsun, seperti Bali dan Jawa Timur, terdapat korelasi signifikan dengan kategori rendah dan sangat rendah. Di stasiun dengan tipe curah hujan ekuatorial, seperti Sumatra Barat dan Kalimantan Barat, korelasi yang ditemukan ada yang signifikan dan ada yang tidak, dengan kategori rendah dan sangat rendah. Hal serupa juga ditemukan pada stasiun dengan tipe curah hujan lokal, seperti Maluku dan Papua.
Analisis Spektral Dalam Penentuan Periodisitas Siklus Curah Hujan di Wilayah Teluk Bayur, Padang Mesi, Mesi; Yendri Sudiar, Nofi; Syafriani, Syafriani; Dwiridal, Letmi
Jurnal Pendidikan Tambusai Vol. 9 No. 1 (2025)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Teluk Bayur adalah salah satu area di Kota Padang yang berfungsi untuk memantau intensitas curah hujan. Untuk mengurangi dampak negatif dari curah hujan, penting untuk memahami pola siklus hujan. Tujuan dari penelitian adalah menganalisis pola siklus curah hujan di Teluk Bayur, Padang. Metode analisis spektral yang diterapkan yaitu teknik Fast Fourier Transform (FFT). Data curah hujan bulanan yang digunakan mencakup periode 1994 hingga 2020 dan diperoleh dari BMKG Maritim Teluk Bayur. Hasil analisis menampilkan bahwa pola periodisitas utama curah hujan di Teluk Bayur adalah 12 bulan dan 6 bulan. Selain itu, periodogram juga mengindikasikan adanya pola tambahan dengan siklus 29 bulan, 36 bulan, 18 bulan, 3 bulan, dan 65 bulan
Identifikasi Tren Perubahan Suhu Udara di Kota Padang Pratiwi Gholil Prasetiyani; Yendri Sudiar, Nofi; Akmam; Hamdi
Journal of Climate Change Society Vol. 3 No. 1 (2025)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol3-iss1/48

Abstract

The study examines he trend of air temperature in Padang City over the last three decades as part of efforts to understand regional climate variability and the potential impact of increasing global temperature on Padang City. The average, minimum, and maximum temperature data from the Minangkabau Meteorological Station for the period 1991–2020 and the Teluk Bayur Maritim Station for the period 1994–2020 were analyzed using Sen’s Slope Test to determine trend values and the Mann-Kendall Test to assess significance. The analysis results show a significant upward trend in average and minimum temperatures at Minangkabau Station, and maximum temperatures at Taluk Bayur Station. Urban Heat Island and industrial activities are the main factors of this increasing trend. If this trend continues to increase in the years to come, future temperature increases will be more extreme.
Analisis Pengaruh Parameter Meteorologi (SUHU (T), Kelembaban Udara (RH), Dan Curah Hujan (CH)) Terhadap Kosentrasi (PM) (2.5) DAN (PM)_10 di Statiun GAW Bukit Kototabang Mutiara Novichri, Viona; Yendri Sudiar, Nofi; Amir, Harman; Dwiridal, Letmi
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh parameter meteorologi (suhu, kelembaban udara, dan curah hujan) terhadap konsentrasi  dan  di Statiun GAW Bukit Kototabang. Data yang digunakan berasal dari Statiun GAW Bukit Kototabang pada periode Desember 2023-Februari 2024. Hasil penelitian menunjukkan bahwa nilai rata-rata konsentrasi  dan  pada bulan Desember 2023 berturut-turut sebesar 7,65 pg/m3 dan 7,73 pg/m3, pada bulan Januari 2024 sebesar 8,63 pg/m3 dan 8,73 pg/m3, serta pada bulan Februari 2024 sebesar 9,14 pg/m3 dan 10,5 pg/m3. Analisis korelasi menunjukkan bahwa suhu memiliki korelasi positif dan signifikan terhadap konsentrasi  dan , baik pada siang hari maupun malam hari. Curah hujan juga berpengaruh terhadap penurunan konsentrasi  dan  di Bukit Kototabang karena curah hujan berperan sebagai pencuci polutan di atmosfer. Sementara itu, tidak ditemukan korelasi yang signifikan antara kelembaban udara dengan konsentrasi  dan  Penelitian ini bertujuan untuk menganalisis pengaruh parameter meteorologi (suhu, kelembaban udara, dan curah hujan) terhadap konsentrasi  dan  di Statiun GAW Bukit Kototabang. Data yang digunakan berasal dari Statiun GAW Bukit Kototabang pada periode Desember 2023-Februari 2024. Hasil penelitian menunjukkan bahwa nilai rata-rata konsentrasi  dan  pada bulan Desember 2023 berturut-turut sebesar 7,65 pg/m3 dan 7,73 pg/m3, pada bulan Januari 2024 sebesar 8,63 pg/m3 dan 8,73pg/m3, serta pada bulan Februari 2024 sebesar 9,14 pg/m3 dan pg/m3. Analisis korelasi menunjukkan bahwa suhu memiliki korelasi positif dan signifikan terhadap konsentrasi  dan , baik pada siang hari maupun malam hari. Curah hujan juga berpengaruh terhadap penurunan konsentrasi  dan  di Bukit Kototabang karena curah hujan berperan sebagai pencuci polutan di atmosfer. Sementara itu, tidak ditemukan korelasi yang signifikan antara kelembaban udara dengan konsentrasi  dan .
Co-Authors Aditio, Rama Akmam Akmam Akmam Alwi Nofriandi Audia, Washilla Erianto, Fajar Darma Utama Fadila, Husnul Hamdi Hamdi Hamdi Harman Amir Letmi Dwiridal Mesi, Mesi Mutiara Novichri, Viona Nanda, Popi Nuryadi, Ari Pakhrur Razi Pratiwi Gholil Prasetiyani Sri Aulia Noprianti, Nadia Syafriani Syafriani, Syafriani Wulandari, Mia Yulkifli Zulhendra Zulhendra