Table of Content

Open Access Review

Gaseous Biofuels in Biorefineries: Biomethane

Received: 20 February 2025;  Published: 13 May 2025;  doi: 10.21926/jept.2502010

Abstract

The global production of biomethane is rapidly emerging as a sustainable alternative to fossil fuels for energy generation. Biogas, where methane (CH4) is usually one of the main components, is generated through the anaerobic digestion (AD) of various organic substrates, including animal manure, organic wastes, and wastewater. The efficiency of the AD process depends on key operational parameters and reactor designs that optimize microbial activity and gas yield. However, inhibitory compounds such as heavy metals, [...]

1063 7179

Open Access Project Report

Test Site for Small Wind Turbines – Technical and Logistical Issues of a Decade-Long Project

Received: 31 October 2024;  Published: 05 May 2025;  doi: 10.21926/jept.2502009

Abstract

This work addresses the main results of a test site for small wind turbines (SWTs) located in Patagonia, and the development of the measurement systems involved, including the uncertainties calculations according to applicable IEC standards. Due to market evolution for over a decade, the test systems evolved from battery-charging SWTs to grid-connected units. The test site, developed and managed by state-owned INTI (National Institute for Industrial Technology), was established in 2012 and received support from the [...]

825 5515

Open Access Original Research

Environmental Impacts of Different Electricity Production Scenarios in France

Received: 20 September 2024;  Published: 30 April 2025;  doi: 10.21926/jept.2502008

Abstract

This study focuses on the environmental impacts of the electricity production scenarios proposed for France for 2060 by the French electricity network manager, RTE. They consider an increasing electricity consumption and a production without fossil fuels, essentially based on wind, photovoltaic, hydraulic, and, for some, nuclear power. The total power to install is significantly higher than the current one; it is higher in the scenarios that rely more on photovoltaic and less on nuclear. Renewable energies require [...]

913 9348

Open Access Review

Assessment of Water Balance Dynamics and Resource Stress in the Gaza Strip, Palestine

Received: 23 December 2024;  Published: 21 April 2025;  doi: 10.21926/jept.2502007

Abstract

Water scarcity is one of the most pressing global challenges, particularly in arid and semi-arid regions. In this context, the Gaza Strip, where groundwater is the only available natural water resource, faces severe water stress due to overexploitation and drought conditions. This study aimed to review the recent water budget for the Gaza Strip by collecting data for the years (2021-2022) which was analyzed, discussed, and compared with other studies. The results showed a sharp deterioration in the Gaza Strip in te [...]

923 6816

Open Access Original Research

A Novel Approach to Carbon Monoxide Removal Using Transition Metal-Doped Boron Nitride Nanosensors for Environmental Sustainability

Received: 12 November 2024;  Published: 02 April 2025;  doi: 10.21926/jept.2502006

Abstract

Adsorption of toxic gas of CO molecules by using transition metals of X (X = Ti, V, Cr, Co, Cu, Zn)-doped boron nitride nanocage (B5N10_NC) has been studied by computational chemistry. Based on NQR analysis, X-doped on B5N10_NC has shown the lowest fluctuation in electric potential and the highest negative atomic charge, including 0.2331 (copper), 0.3112 (cobalt), 0.5883 (chromium), 0.6853 (zinc), 0.6893 (vanadium) and 0.7499 coulomb (titanium), respectively, have presented the most tendency for being the electron [...]

767 4076

Open Access Research Article

Design and Management of Renewable Energy Systems for Isolated Communities with No Grid Connection

Received: 10 October 2024;  Published: 07 March 2025;  doi: 10.21926/jept.2501005

Abstract

The growing demand for energy and the need to reduce dependence on non-renewable sources have driven the research and application of sustainable technologies. In this context, an integrated solution that combines distributed energy generation from renewable sources, such as wind and hydro, with efficient management of household energy consumption is proposed. This study focuses on the hybrid renewable energy system simulation analysis designed to meet the demand of an off-grid household in a self-consumption mode. [...]

864 5095

Open Access Original Research

Experimental Study and Kinetic Modeling of Agro-Industrial Wastes for Conversion to Fuel Gas via the Boudouard Reaction

Received: 12 November 2024;  Published: 24 January 2025;  doi: 10.21926/jept.2501004

Abstract

Independent parallel reactions (IPR) and distributed activation energy (DAEM) kinetic models were developed and compared for the combined pyrolysis-gasification of two agro-industrial waste materials. The aim was to recycle greenhouse gas carbon dioxide for mitigating emissions, to evaluate the thermal behavior, reactivity, conversion and product composition in terms of structural/chemical characteristics of the fuels, and to provide accurate kinetic parameters useful in the scaling-up of the process. The experimen [...]

962 4828

Open Access Original Research

Optimization of Heat Transfer in Parabolic Trough Collectors Using Advanced Turbulator Designs and Nanofluids

Received: 19 October 2024;  Published: 15 January 2025;  doi: 10.21926/jept.2501003

Abstract

Parabolic trough collectors (PTCs) are essential for solar thermal energy systems, and their thermal efficiency can be significantly enhanced using turbulators and nanofluids. This numerical study introduces three novel fin-spiral turbulator configurations (4, 7, and 10 blades) to enhance heat transfer within the absorber tube. Additionally, three nanofluid types including water-based single-walled carbon nanotubes (SWCNT), cupric oxide (CuO), and a hybrid SWCNT-CuO, at concentrations of 1%, 3%, and 5% were evaluat [...]

1500 9162

Open Access Editorial

Acknowledgment to Reviewers of Journal of Energy and Power Technology in 2024

Received: 02 January 2025;  Published: 02 January 2025;  doi: 10.21926/jept.2501002

Abstract

The editors of Journal of Energy and Power Technology would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2024. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers can download a certificate of recognition directly from our submission system. Additionally, reviewers can [...]

608 3496

Open Access Original Research

Quantification and Comparative Analysis of Environmental Factors to Large-Scale Solar Plant’s Energy Performance via Regression and Linear Correlation Models

Received: 15 September 2024;  Published: 02 January 2025;  doi: 10.21926/jept.2501001

Abstract

Performance degradation, including system deterioration, corrosion, and energy loss in solar PV systems, can be caused by environmental conditions such as high humidity, frequent rainfall, and temperature swings in tropical nations. Over the years, photovoltaic energy has been successfully developed to have low production costs and high efficiency. It has been the main reason that solar energy is one of the fastest-growing renewable energies in the world, with a generation of 821 TWh of electricity since 2021, repr [...]

942 9207

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