by Rafael B. Oliva  , Andrés Zappa  , Mariano Amadio  and Guillermo Catuogno

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

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 [...]

by Bertrand Cassoret  and François Balavoine

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

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 [...]

by Amjad Mizyed

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

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 [...]

by Fatemeh Mollaamin

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

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 [...]

by Carlos Armenta-Déu  and Ángela Trujillo

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

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. [...]

by Despina Vamvuka  , Stelios Sfakiotakis  and Elpida Patlaka

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

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 [...]

by Mohsen Pourfallah  and Ethan Languri

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

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 [...]

by Journal of Energy and Power Technology Editorial Office

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

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 [...]

by Jazael Ballina  and Yun Ii Go

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

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 [...]

by Wilson C. Chin  , Xiaoying Zhuang  and Jamie A. Chin

Received: 07 September 2024;  Published: 06 December 2024;  doi: 10.21926/jept.2404023

Our new approach to MWD mud pulse telemetry offers significant increases over conventional data rates. Using waveguide acoustics, we show that common drilling communications channels support carrier frequencies exceeding several hundred Hertz. Such signals are prone to attenuation over large drill pipe distances. Low power, self-spinning “turbosirens” are designed, providing high torque and rotation rate performance at all flow rates without electric or hydraulic motor drives. The sirens rotate, drawing only on the [...]