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Open Access Original Research

Measurements of Overwater Gust Factor from Near Surface to Beyond Common Hub Height: A Case Study

Received: 13 December 2020;  Published: 06 July 2021;  doi: 10.21926/jept.2103031

Abstract

In September 2020 Hurricane Sally affected the north central Gulf of Mexico. Making use of the anemometers data available at 4 oil rigs over the affected region, it is found that, when the atmospheric stability was near-neutral, the gust factor (G) decreases linearly [...]

1112 6210

Open Access Original Research

Design and Implementation of a Laboratory Sucker Rod Pumping Unit Using Industry 4.0 Concepts

Received: 15 February 2021;  Published: 30 June 2021;  doi: 10.21926/jept.2102030

Abstract

The Industry 4.0 is here, and advanced technologies are widely available for domains such oil and gas which are traditionally slow in adopting extreme new technologies. This paper presents the design architecture and implementation of effective data acquisition (DAQ) and monitoring syste [...]

1884 10174

Open Access Review

Dynamic Behavior of Li in Solid-State Li-Ion Batteries Studied using MeV Ion Beam Analysis Techniques

Received: 26 March 2021;  Published: 24 June 2021;  doi: 10.21926/jept.2102029

Abstract

In this review, various studies on the Li depth profiles of metal/electrolyte/metal capacitors and batteries of Au/LCO/LATP/Pt, LCO/LiPON/Si, and LMO/LiPON/NbO with different metal electrodes at both sides (by bias; LCO =LiCoO2 [...]

1276 6647

Open Access Original Research

Development of Wind IPMSG Based Bipolar DC Microgrids

Received: 25 February 2021;  Published: 22 June 2021;  doi: 10.21926/jept.2102028

Abstract

This paper presents the development of a wind Interior Permanent-Magnet Synchronous Generator (IPMSG) based bipolar DC microgrids along with various switch-mode rectifiers. Firstly, the wind IPMSG is established and adequately controlled to possess satisfactory generating characteristics during diff [...]

1211 7533

Open Access Original Research

Automated Probabilistic Analysis and Parametric Modelling of the Seasonal-Diurnal Wind Vector

Received: 14 April 2021;  Published: 25 June 2021;  doi: 10.21926/jept.2102027

Abstract

A refined and extended version of the Offset Elliptical Normal mixture model has been developed to parameterise the seasonal diurnal wind vector automatically. Automated using R scripts, the method eliminates any potential risk of confirmation bias posed by the manual supervision in the original met [...]

1147 6764

Open Access Research Article

Numerical Investigation of Pyrotechnical Initiators and Their Impact in Airbag Inflator Applications: Ballistic Modeling and Functional Analysis

Received: 02 April 2021;  Published: 28 June 2021;  doi: 10.21926/jept.2102026

Abstract

A numerical model describing the ballistic behavior of a commercially used initiator is presented in this article. This model was built on the principle of conservation of mass and energy in the multi-phase framework incorporated with mul [...]

2071 10867

Open Access Original Research

Estimating Met-Ocean Parameters during a Tropical Cyclone for Marine Science and Engineering

Received: 16 April 2021;  Published: 16 June 2021;  doi: 10.21926/jept.2102025

Abstract

During a tropical cyclone (TC) worldwide, the Regional and Mesoscale Meteorological Branch (RAMMB) of NOAA/NESDIS (http://rammb.cira.colostate.edu/) issues real-time TC surface wind analyses. The purpose of this article is to provi [...]

1590 8419

Open Access Original Research

Performance Investigation of a Nickel Cermet Anode Modified with Copper, Alkaline Earth Metal Oxide, Boron, and Perovskite for Direct Methane Fuel Cell

Received: 26 April 2021;  Published: 11 June 2021;  doi: 10.21926/jept.2102024

Abstract

The metallic copper, alkaline earth metal oxide, boron, and perovskite were incorporated on the surface of a Ni-cermet anode, and the performance of the modified Solid Oxide Fuel Cell (SOFC) anode was evaluated. The cell performance was analyzed by voltage-current characteristics (V-I curve) and H&l [...]

1418 7579

Open Access Research Article

Interconnected Operations of Electric Vehicle to Grid and Microgrid

Received: 19 December 2020;  Published: 31 May 2021;  doi: 10.21926/jept.2102023

Abstract

This paper presents the development of a high-performance electric vehicle (EV) synchronous reluctance motor (SynRM) driv [...]

1587 9932

Open Access Original Research

An Ab Initio Study of Li/Ni-doped NaxMeO2 Cathode Material for Na-Ion Batteries

Received: 02 November 2020;  Published: 10 June 2021;  doi: 10.21926/jept.2102022

Abstract

The current state-of-the-art quantum mechanics methodologies were applied to derive information on the bulk and surface properties of the P2-type layered oxide Na0.85Li0.17Ni0.21Mn0.6 [...]

1372 7960

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