Journal of Energy and Power Technology (JEPT) is an international peer-reviewed Open Access journal published quarterly online by LIDSEN Publishing Inc. This periodical is dedicated to providing a unique, peer-reviewed, multi-disciplinary platform for researchers, scientists and engineers in academia, research institutions, government agencies and industry. The journal is also of interest to technology developers, planners, policy makers and technical, economic and policy advisers to present their research results and findings.

Journal of Energy and Power Technology focuses on all aspects of energy and power. It publishes original research and review articles and also publishes Survey, Comments, Perspectives, Reviews, News & Views, Tutorial and Discussion Papers from experts in these fields to promote intuitive understanding of the state-of-the-art and technology trends. 

Main research areas include (but are not limited to):
Renewable energies (e.g. geothermal, solar, wind, hydro, tidal, wave, biomass) and grid connection impact
Energy harvesting devices
Energy storage
Hybrid/combined/integrated energy systems for multi-generation
Hydrogen energy 
Fuel cells
Nuclear energy
Energy economics and finance
Energy policy
Energy and environment
Energy conversion, conservation and management
Smart energy system

Power Generation - Conventional and Renewable
Power System Management
Power Transmission and Distribution
Smart Grid Technologies
Micro- and nano-energy systems and technologies
Power electronic
Biofuels and alternatives
High voltage and pulse power
Organic and inorganic photovoltaics
Batteries and supercapacitors

Indexing: 
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Archiving: full-text archived in CLOCKSS.

Rapid publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 6.1 weeks after submission; acceptance to publication is undertaken in 8.9 days (median values for papers published in this journal in the second half of 2021, 1-2 days of FREE language polishing time is also included in this period).

Open Access Original Research

Generalized Normal Distribution Optimization Algorithm for Economic Dispatch with Renewable Resources Integration

Received: 18 June 2023;  Published: 28 September 2023;  doi: 10.21926/jept.2303030

Abstract

In an electric power system operation, the main goal of economic dispatch (ED) is to schedule the power outputs of committed generating units efficiently. This involves consideration of relevant system equality and inequality constraints to meet the required power demand at the lowest possible operational cost. This is a challenging optimization problem [...]

Open Access Original Research

A Comparative Study of R134a and Propane (R290) as Refrigerants in Heat Pump Water Heaters

Received: 26 March 2023;  Published: 18 September 2023;  doi: 10.21926/jept.2303029

Abstract

In the context of decarbonization efforts, heat pump water heaters (HPWHs) offer an attractive solution over conventional electric resistance type hot water systems due to their 2-3 times higher efficiency. However, the high manufacturing costs and taxes associated with using hydrofluorocarbon (HFC) refrigerant make HPWHs expensive. As a means to tackle [...]

Open Access Original Research

Overall Reaction Rate Study of Thermal Methane Cracking in Non-Isothermal Conditions

Received: 10 April 2023;  Published: 13 September 2023;  doi: 10.21926/jept.2303028

Abstract

The thermal cracking of methane (TMC) is a significant reaction occurring above 850°C, which proceeds in two stages: non-isothermally and isothermally. However, most existing studies have focused on obtaining reaction rates under isothermal conditions [1], limiting their applicability to practical industrial reactor conditions. This novel research [...]

Open Access Original Research

Exploring the Potential of Phase Change Material for Thermal Energy Storage in Building Envelopes

Received: 16 June 2023;  Published: 08 September 2023;  doi: 10.21926/jept.2303027

Abstract

Buildings, with their significant energy consumption, pose a pressing concern for the future. Inadequate heating, ventilation, and air-conditioning (HVAC) systems further exacerbate thermal management difficulties and energy requirements. To address these challenges, Phase Change Materials (PCMs) offer valuable potential for sustainable energy reduction [...]

Open Access Original Research

Volt-Var Control for Utility-Scale Solar PV Plants to Downsize SVCs and Curtailment Effects

Received: 09 March 2023;  Published: 03 August 2023;  doi: 10.21926/jept.2303026

Abstract

One way to increase solar photovoltaic penetration in the grid is the management of voltage fluctuations. This is because a photovoltaic plant cannot be interconnected to the grid if it causes voltage violations. Voltage violation is where voltage exceeds the acceptable range. Often, grid operators request photovoltaic plant owners to regulate voltage [...]

Open Access Original Research

Study and Characterization of a Spherical Solar Collector. Part II: Comparative Analysis with Flat-Plate Devices

Received: 18 May 2023;  Published: 27 July 2023;  doi: 10.21926/jept.2303025

Abstract

The paper analyses the performance of a spherical solar collector compared to the efficiency of a flat-plate solar collector, which is the type of solar collector that does not use a tracking system in collecting solar radiation for energy conversion. Spherical solar collector benefits from a constant value of the angle of incidence, which optimizes [...]

Open Access Review

Improving the Performance of Solar Thermal Energy Storage Systems

Received: 29 May 2023;  Published: 18 July 2023;  doi: 10.21926/jept.2303024

Abstract

In recent times, renewable energy resources have been greatly researched because of the increasing concern to minimize global warming and meet energy demands. Energy storage systems have become useful tools for sustainability and meeting energy needs. Solar energy has proven in recent times to be the primary and most prevalent option due to its environm [...]

Open Access Research Article

Permeability, Compressibility and Pressure Prediction in Supercharged Wireline and FTWD Environments

Received: 12 April 2023;  Published: 10 July 2023;  doi: 10.21926/jept.2303023

Abstract

In conventional wireline and LWD/MWD formation testing, downhole predictions for rock and fluid properties are based on simplified Darcy flow models, but only for mathematical expediency. These require initially constant pressures that are uniform throughout the reservoir. This limitation precludes common applications in overbalanced drilling, so that [...]

Open Access Research Article

Study and Characterization of a Spherical Solar Collector. I. Efficiency and Thermal Losses Coefficient

Received: 21 April 2023;  Published: 04 July 2023;  doi: 10.21926/jept.2303022

Abstract

This paper studies and characterizes a solar collector with spherical geometry to produce hot water for sanitary and domestic applications and other facilities. The new geometry enlarges the solar collector surface and allows full sun tracking during the day without needing a solar tracking system. Although this geometry has been in use for some time [...]

Open Access Retraction

Retraction: Simani S, Farsoni S, Castaldi P. Transfer Learning for Fault Detection with Application to Wind Turbine SCADA Data. Journal of Energy and Power Technology 2023; 5(1): 011

Received: 25 June 2023;  Published: 28 June 2023;  doi: 10.21926/jept.2302021

Abstract

RetractionRetraction: Simani S, Farsoni S, Castaldi P. Transfer Learning for Fault Detection with Application to Wind Turbine SCADA Data. Journal of Energy and Power Technology 2023; 5(1): 011Journal of Energy and Power Technology Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: [...]

Open Access Original Research

Effects of Waste Cooking Oil Biodiesel on Performance, Combustion and Emission Characteristics of a Compression Ignition Engine

Received: 07 February 2023;  Published: 20 June 2023;  doi: 10.21926/jept.2302020

Abstract

With their higher sustainability index, biofuels, environmentally-friendly and renewable nature is a viable alternative energy source in the transportation sector. This study presents the effect of waste cooking oil (WCO) biodiesel on performance, combustion, and emission from a compression ignition engine. The biodiesel was blended with diesel in var [...]

Open Access Review

A Review of Practical Applications of Fluid Flow and Associated Heat Transfer Modeling in Wellbores

Received: 28 March 2023;  Published: 12 June 2023;  doi: 10.21926/jept.2302019

Abstract

Investigations on two-phase gas/liquid flow in pipes have been under study for nearly six decades. These studies have significantly assisted in managing fluid flow in the wellbore and surface networks, leading to the separation of phases and transmission of oil and gas into the market. This study summarizes some of the main lessons learned in flow throu [...]

Open Access Original Research

Nonlinear Optimal Control for Six-Phase Induction Generator-Based Renewable Energy Systems

Received: 07 December 2022;  Published: 11 May 2023;  doi: 10.21926/jept.2302018

Abstract

The article aims at optimizing six-phase induction generator-based renewable energy systems (6-phase IGs or dual star induction generators) through a novel nonlinear optimal control method. Six-phase induction generators appear to be advantageous compared to three-phase synchronous or asynchronous power generators, in terms of fault tolerance and improv [...]

Open Access Original Research

Fixed-Switching Frequency Finite-State Model Predictive Thrust and Primary Flux Linkage Control for LIM

Received: 14 February 2023;  Published: 09 May 2023;  doi: 10.21926/jept.2302017

Abstract

The special design of linear induction machines (LIMs) leads to adverse effects caused by the longitudinal and end effects. These effects make the thrust control of the LIMs most attractive because its value decreases sharply with the speed increase. Thus, finite-state model predictive control (FS-MPC) is developed to increase the performance of the [...]

Open Access Original Research

Non-Isothermal Compressible Flow Model for Analyzing the Effect of High CO2 Inlet Flow Rate on Particle Size in a Supercritical Antisolvent Process

Received: 17 December 2022;  Published: 18 April 2023;  doi: 10.21926/jept.2302016

Abstract

In this work with CFD simulations, the evaluation of the supercritical anti-solvent (SAS) process for producing nanoparticles from an expanded solution of ethanol/solute in carbon dioxide is reported. The influence of the solution and antisolvent flow rates on mean particle size, the flow dynamic, and the supercritical mixture's jet velocity must be [...]

Open Access Original Research

Thermodynamic and Structural Optimization of Organic Rankine Cycle Plant for Clean Energy Access Using Artificial Bee Colony and Multi-Criteria Decision-Making Algorithms

Received: 29 December 2022;  Published: 13 April 2023;  doi: 10.21926/jept.2302015

Abstract

The quest to decarbonize the energy space to avert the negative climate change consequences calls for using low/zero-carbon energy conversion technologies in the energy generation space. The Organic Rankine Cycle is a low/zero-carbon energy conversion technology for recovering waste heat from low to medium-temperature heat sources and for biomass conver [...]

Open Access Review

The Eastern Australian Floods of February 2022 and Its Relationship with Climate Change

Received: 19 October 2022;  Published: 07 April 2023;  doi: 10.21926/jept.2302014

Abstract

During February 2022 major riverine flooding occurred in an area which has the fastest population growth in Australia. This extended from the Mary River in Southeast Queensland (SEQ) to the Clarence River in Northeast NSW (NENSW). Two centres within this area were devastated by floods unprecedented in living memory. One was the Brisbane Metropolitan [...]

Open Access Research Article

Techno-Economic Analysis of Waste-to-Suburban Cooking Energy Critical Infrastructure Development in Southwestern Nigeria

Received: 08 September 2022;  Published: 03 April 2023;  doi: 10.21926/jept.2302013

Abstract

This study examined the techno-economic specifications for a Waste-to-Suburban Cooking Energy critical infrastructure project in Southwestern Nigeria. Technological and project economic data for the W2E project were obtained from strategic sources and energy project foresight/analysis framework used. The results showed residential upgraded biogas-for [...]

Open Access Original Research

Influence of Biogas Digestates on the Composition of Soil Organic Matter

Received: 23 November 2022;  Published: 22 March 2023;  doi: 10.21926/jept.2301012

Abstract

The increasing number of biogas plants with various digested organic materials and output of digestates calls for more detailed investigations of their suitability as soil amendments. In a trial in Northern Germany two replicate plots each were treated with fresh or prolonged fermented digestate to investigate the influence of digestates on the composit [...]

Open Access Research Article

Transfer Learning for Fault Detection with Application to Wind Turbine SCADA Data

Received: 02 February 2023;  Published: 21 March 2023;  doi: 10.21926/jept.2301011

Abstract

The installed wind power capacity is growing worldwide. Remote condition monitoring of wind turbines is employed to achieve higher uptimes and lower maintenance costs. Machine learning models can detect developing damages in wind turbines. Therefore, this paper demonstrates that cross–turbine transfer learning can drastically improve the accuracy [...]

Open Access Research Article

The Liquid-Mediated Synthesis and Performance Evaluation of Li-Zr-F Composite for Ion-Conduction

Received: 04 December 2022;  Published: 20 February 2023;  doi: 10.21926/jept.2301010

Abstract

Crystalline lithium fluoride (LiF) has been intensively pursued as potential alternative solid electrolytes (SEs) owing to its excellent chemical and electrochemical oxidation stability, and good deformability. However, due to its low ion conductivity, LiF is still challenging for practical SE applications. Herein, Li-Zr-F composite-based SE by liquid [...]

Open Access Original Research

Modeling of Autonomous Microgrid Operated at Medium-Voltage Level and at Constant Frequency and Study of Its Voltage Profile

Received: 06 December 2022;  Published: 17 February 2023;  doi: 10.21926/jept.2301009

Abstract

To increase power level in an autonomous microgrid, higher voltage is necessary. In this paper, detailed Matlab/Simulink modeling of a microgrid operated at medium-voltage level and at constant frequency has been conducted. Modified boost converter and medium-frequency transformer isolated DC/DC converter are adopted for both solar energy and wind energ [...]

Open Access Research Article

Prediction of Wind Loadings on Offshore Wind Turbines Using CFD

Received: 03 December 2022;  Published: 09 February 2023;  doi: 10.21926/jept.2301008

Abstract

Analysing the structural response of offshore wind turbines (OWTs) requires a robust method to estimate environmental loadings associated with extreme weather conditions. This study aimed to accurately predict wind loadings on a non-rotating OWT using a Computational Fluid Dynamics (CFD) code, Ansys Fluent package. The inlet velocity boundary condition [...]

Open Access Research Article

An 800V End to End SiC Powertrain to Accommodate Extremely Fast Charging

Received: 15 November 2022;  Published: 08 February 2023;  doi: 10.21926/jept.2301007

Abstract

Widespread adoption of electric vehicles has presented the challenges of short range and prolonged charging time. Going forward, extremely fast charging is the only solution to these problems. However, the typical Silicon power electronics supported 400 V electric vehicle powertrain cannot live up to this challenge. Limitations include the huge cable [...]

Open Access Original Research

A Combined Power and Ejector Refrigeration Cycle System for Thermal Energy Recovery from the Waste Heat of Internal Combustion Engine

Received: 31 December 2022;  Published: 06 February 2023;  doi: 10.21926/jept.2301006

Abstract

In this paper, due to the importance of energy recovery from internal combustion engines and the increasing human growing need for power and refrigeration, a two-cycle power and refrigeration system consisting of an organic Rankine cycle and an ejector refrigeration cycle is investigated analytically. The proposed system with the ability to use the [...]

21st International Conference of Numerical Analysis and Applied Mathematics

September 11th-17th, 2023
Crete, Greece

Topics to be covered include (but are not limited to):

All the research areas of Numerical Analysis and Computational Mathematics

  • Numerical ODEs
  • Numerical PDEs (inc. BVPs)
  • Scientific Computing and Algorithms
  • Stochastic Differential Equations
  • Approximation
  • Numerical  Linear Algebra
  • Numerical Integral Equations
  • Error Analysis and Interval Analysis
  • Difference Equations and Recurrence Relations
  • Numerical problems in Dynamical Systems
  • Applications to the Sciences (Computational Physics, Computational Statistics, Computational Chemistry, Computational Engineering etc.)
  • Differential Algebraic Equations
  • Numerical methods in Fourier analysis
    etc.

All the research areas of Applied and Industrial Mathematics

  • Mathematical Physics
  • Mathematical Chemistry
  • Mathematical Biology and Mathematical Medicine
  • Optimization and Operational Research
  • Theoretical Mechanics
  • Discrete Applied  Mathematics
  • Statistics
  • Probability
  • Dynamical Systems
  • Algorithms
  • Experimental Mathematics
  • Theoretical Computer Science
  • Applied Analysis
  • Mathematical Modelling
  • Decomposition and Reconstruction Algorithms, Subdivision Algorithms
  • Continuous and Discrete Wavelet Transform
  • Time-frequency Localization
  • Phase-Space Analysis
  • Subband Coding
  • Image Compression
  • Real-Time Filtering
  • Radar and Sonar Applications
  • Transient Analysis
  • Medical Imaging
  • Multigrid Methods
  • Frames
  • Bifurcation and Singularity Theory
  • Deterministic Chaos and Fractals
  • Soliton and Coherent Phenomena
  • Formation of Pattern
  • Evolution
  • Complexity Theory and Neural Networks
  • Analytical Approaches and Simulations for more Accurate Descriptions
  • Predictions
  • Experimental Observations and Applications of Nonlinear Phenomena in Science and Engineering
  • Theoretical and Applied aspects of Computational Geometry
  • Control Theory and Automation
  • Fuzzy Sets and Systems and Fuzzy Logic
  • Applied Algebra
  • Quality Theory of Differential Equations
  • Neural Networks
    etc.

For more details, please visit: www.icnaam.org

Journal of Energy and Power Technology welcomes the following types of articles: original research, review, communication, opinion, case report, comment, conference report, technical note, book review, etc. There is no restriction on the length of the papers, color figures, supplementary file types. More details please see Instructions for Authors.

Register and Submit now.

Announcement
Newsletter
Announcements

Special issue “Hydrogen Energy: Sustainable Production, Storage and Utilisation” was postponed until August 31, 2020.

Special issue “Offshore Wind Farms” was postponed until October 31, 2020.

Highly Accessed Articles

Original Research

by Xiang Li et al.

Journal of Energy and Power Technology 2023

Published: 09 May 2020

Original Research

by Megan Schutt and Harvey Seim

Journal of Energy and Power Technology 2023

Published: 30 April 2020

Original Research

by Manuel LEGREE et al.

Journal of Energy and Power Technology 2023

Published: 28 April 2020

Original Research

by Ryosuke Oochi et al.

Journal of Energy and Power Technology 2023

Published: 12 February 2020

Research Article

by Anna Karmazina and Brent S. Steel

Journal of Energy and Power Technology 2023

Published: 24 December 2019

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