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All Journal Aceh International Journal of Science and Technology Geographia: Jurnal Pendidikan dan Penelitian Geografi
Muzakir Zainal
Syiah Kuala University
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences

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Comparative Analysis of Wind Energy Potential with Nakagami and Weibull Distribution Methods for Wind Turbine Planning Suriadi Suriadi; Muna Nabilah; Muzakir Zainal; Muhammad Yanis; Marwan Marwan; Hafidh Hafidh; Muzailin Affan
Aceh International Journal of Science and Technology Vol 12, No 1 (2023): April 2023
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.12.1.30736

Abstract

Wind energy is renewable energy used as an energy source for wind power plants (PLTB). The most common distribution method used to model wind speed distribution data is the Weibull distribution. The Nakagami distribution has begun to be widely used in several studies to model wind speed distribution data. The Nakagami distribution is considered an alternative to the Weibull distribution in modeling wind speed distribution data. This study aims to compare the distribution of Nakagami and Weibull in analyzing wind power potential and calculating the resulting Wind Energy Production (WEP), using wind speed distribution data from both distributions in Kuta Raja, Banda Aceh and Lhoknga, Aceh Besar. The wind speed data used is satellite data (secondary data) downloaded via windguru.cz, with the most stable wind speed being a wind speed of 3-5 m/s. The value of wind power potential at the Kuta Raja location, Banda Aceh was obtained at 64.16% with the Nakagami distribution and 62.73% with the Weibull distribution, and 73.60% with the Nakagami distribution and 73.28% at the Lhoknga location, Aceh Besar. The comparison of these two distributions produces a Weibull distribution that is superior to the Nakagami distribution for both locations, where the Weibull distribution has a smaller error value and produces a WEP value that is in accordance with the actual/observable data compared to the Nakagami distribution. In this study, the Nakagami distribution has results that make this distribution an alternative or comparison to the Weibull distribution in distributing wind speed data with further research.
Hydrogeochemical characteristics analysis of groundwater along coastal area of Ujong Pancu, Aceh Besar regency Akmal Muhni; Alfi Syahrin; Dina Gunarsih; Dewi Sartika; Muhammad Ridha Adhari; Tika Hapsari; Zakia Masrurah; Muzakir Zainal; Fajar Fakri
GEOGRAPHIA: Jurnal Penelitian dan Pendidikan Geografi Vol. 7 No. 1 (2026): June
Publisher : Jurusan Pendidikan Geografi, Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/s1pmq723

Abstract

Groundwater is the primary source of fresh water for communities in the coastal area of Ujong Pancu, Peukan Bada, Aceh Besar. However, limited assessments of its suitability for domestic use, combined with geological conditions dominated by high-porosity alluvial deposits (Qh), increase its vulnerability to contamination. Therefore, this study aims to analyze the hydrogeochemical characteristics and evolution of groundwater and to identify the controlling geochemical processes. A total of 10 groundwater samples were collected from dug wells and analyzed for major cations (Na, K, Ca, and Mg) and anions (Cl, SO₄, and HCO₃). The results were interpreted using Stiff and Piper diagrams to determine hydrochemical facies and groundwater evolution. The results show that groundwater is dominated by Ca–Mg–HCO₃, mixed facies, and Na–HCO₃–SO₄. The evolution of groundwater chemistry indicates carbonate mineral dissolution and cation exchange processes, in which Ca–Mg is progressively replaced by Na along the groundwater flow path. Several samples exhibit balanced Ca and HCO₃ concentrations, indicating meteoric water characteristics. In conclusion, groundwater hydrogeochemistry in the Ujong Pancu coastal area is primarily controlled by water–rock interaction and internal aquifer processes.
Co-Authors Akmal Muhni Alfi Syahrin Dewi Sartika Dina Gunarsih Fajar Fakri Hafidh Hafidh Marwan Marwan Muhammad Ridha Adhari Muhammad Yanis Muna Nabilah Muzailin Affan Suriadi Suriadi Tika Hapsari Zakia Masrurah