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Call for papersThe 2026 special issue on Climate & Health is open for submissions.Learn more
EPE, a monthly journal, publishes research and review articles in all important aspects of electric power engineering and other professionals involved in the electric power industry. Both experimental and theoretical papers are acceptable provided they report important findings, novel insights, or useful techniques in…
Liyang Fan, Weijun Gao, Zhu Wang
Under the Kyoto Protocol,Japanwas supposed to reduce six percent of the green house gas (GHG) emission in 2012. However , until the year 2010, the statistic s suggested that the GHG emission increased 4.2%. What is more challenge is, afterFukushimacrisis, wit…
Osama H. M. Ghazal, Yousef S. H. Najjar, Kutaeba J. M. Al-Khishali
The problem with fixed valve timing that the valve train is set by the automaker for peak efficiency running at a specific point in the engine ’ s operating range. When the vehicle is moving slower or faster than this ideal operating point the engine ’ s comb…
Yuefen Gao, Yingxin Peng, Juanjuan Liu
Direct Expansion Ground Source Heat Pump (DXGSHP) system directly extracts heat or cold energy from ground by consuming electricity to provide for space conditioning. Compared with the currently widely-used secondary loop Ground Couple Heat Pump (GCHP) system…
H. F. Zhang, P. C. Pei
This paper is dedicated to analytical expression of the maximum electricity-cost ratio (M-ECR) point of the proton ex change membrane (PEM) fuel cell power generation as the function of cell constants and cost constants. That is to for mulize the maximum cost…
Jürgen Krenn, Helmut Keck, Manfred Sallaberger
The stability of the grid is jeopardized with the large percentage of non-dispatchable renewables like wind power and also with increasing solar power. This creates various problems because these forms of energy are very volatile and difficult to predict. In…
Philippe Savoie, Pierre-Luc Hébert, François-Simon Robert, Derek Sidders
The biobaler is an alternative to the modified self-propelled forage harvester to cut and collect short rotation woody crops (SRWC). It is less capital intensive and more versatile, being able to harvest woody crops on plantations, on abandoned farmland, on b…
Miguel Torres, Luiz A. C. Lopes
Ideally, diesel hybrid autonomous power systems would operate with high penetration of renewable energy sources such as wind and photovoltaic to minimize fuel consumption. However, since these are inherently intermittent and fluctuating, the grid-forming dies…
Hongfei Zhang, Pucheng Pei, Mancun Song, Dapeng Zhang
The energy efficiency of proton exchange membrane (PEM) fuel cells always keeps changing with load and time. Con sidering cell diversity and operation variety, it’s of necessity to find a simple method to estimate the changes. The work is done with the recent…
Masato Kanayama, Takeo Oku, Tsuyoshi Akiyama, Youichi Kanamori, Satoshi Seo, Jun Takami, Yoshimasa Ohnishi, Yoshikazu Ohtani, Mikio Murozono
Structure and properties of anti-reflection thin films of spherical silicon solar cells were investigated and discussed. Conversion efficiencies of spherical Si solar cells coated with F-doped SnO 2 anti-reflection films were improved by annealing. Optical ab…
Yuefen Gao, Honglei Zhao, Yingxin Peng, Tony Roskilly
HFO-1234yf and HFO-1234ze[E] have low global warming potential and zero ozone depletion potential. If they are used in the direct expansion ground source heat pump system substituting for HFC-134a, the system will be beneficial to mitigating climate change. T…
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EPE, a monthly journal, publishes research and review articles in all important aspects of electric power engineering and other professionals involved in the electric power industry. Both experimental and theoretical papers are acceptable provided they report important findings, novel insights, or useful techniques in… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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