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Kévyn Johannes

Bio: Kévyn Johannes is an academic researcher from Claude Bernard University Lyon 1. The author has contributed to research in topics: Thermal energy storage & Phase-change material. The author has an hindex of 20, co-authored 54 publications receiving 2023 citations. Previous affiliations of Kévyn Johannes include Institut national des sciences Appliquées de Lyon & University of Lyon.


Papers
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Journal ArticleDOI
TL;DR: In this article, a comprehensive review of the integration of phase change materials in building walls is presented. But, even if the integrated phase change material have a good potential for reducing energy demand, further investigations are needed to really assess their use.
Abstract: The present paper is the first comprehensive review of the integration of phase change materials in building walls. Many considerations are discussed in this paper including physical considerations about building envelope and phase change material, phase change material integration and thermophysical property measurements and various experimental and numerical studies concerning the integration. Even if the integrated phase change material have a good potential for reducing energy demand, further investigations are needed to really assess their use.

856 citations

Journal ArticleDOI
TL;DR: In this article, a room was equipped with phase change material (PCM) wallboards in the lateral walls and in the ceiling, and the results showed that the PCM wallboards enhanced the thermal comfort of occupants due to air temperature and radiative effects of the walls.

174 citations

Journal ArticleDOI
TL;DR: In this paper, a photovoltaics/thermal (PV/T) collector combined with a solar water heating collector and PV cells was used to limit the rise of the cell operating temperature.

169 citations

Journal ArticleDOI
TL;DR: In this paper, a new TRNSYS Type, named Type 260, is developed to model the thermal behavior of an external wall with phase change materials, and validated using experimental data from the literature.

134 citations

Journal ArticleDOI
TL;DR: In this paper, the design and the characterisation of a high powered energy dense zeolite thermal heat storage system using water vapour sorbate has been presented in order to shave the electricity peak loads in a house.

109 citations


Cited by
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Journal ArticleDOI
TL;DR: In this article, the authors summarized previous works on latent thermal energy storage in building applications, covering PCMs, the impregnation methods, current building applications and their thermal performance analyses, as well as numerical simulation of buildings with PCMs.

1,569 citations

Journal ArticleDOI
TL;DR: In this article, the state of the art of phase change materials for thermal energy storage applications is reviewed and an insight into recent efforts to develop new phase change material with enhanced performance and safety.

1,399 citations

Journal ArticleDOI
TL;DR: A review of the trend of development of photovoltaic/thermal technology, in particular the advancements in recent years and the future work required can be found in this article.

1,254 citations

Journal ArticleDOI
TL;DR: The need of solar industry with its fundamental concepts, worlds energy scenario, highlights of researches done to upgrade solar industry, its potential applications and barriers for better solar industry in future in order to resolve energy crisis as mentioned in this paper.
Abstract: World׳s energy demand is growing fast because of population explosion and technological advancements. It is therefore important to go for reliable, cost effective and everlasting renewable energy source for energy demand arising in future. Solar energy, among other renewable sources of energy, is a promising and freely available energy source for managing long term issues in energy crisis. Solar industry is developing steadily all over the world because of the high demand for energy while major energy source, fossil fuel, is limited and other sources are expensive. It has become a tool to develop economic status of developing countries and to sustain the lives of many underprivileged people as it is now cost effective after a long aggressive researches done to expedite its development. The solar industry would definitely be a best option for future energy demand since it is superior in terms of availability, cost effectiveness, accessibility, capacity and efficiency compared to other renewable energy sources. This paper therefore discusses about the need of solar industry with its fundamental concepts, worlds energy scenario, highlights of researches done to upgrade solar industry, its potential applications and barriers for better solar industry in future in order to resolve energy crisis.

894 citations

Journal ArticleDOI
TL;DR: In this article, a comprehensive review of the integration of phase change materials in building walls is presented. But, even if the integrated phase change material have a good potential for reducing energy demand, further investigations are needed to really assess their use.
Abstract: The present paper is the first comprehensive review of the integration of phase change materials in building walls. Many considerations are discussed in this paper including physical considerations about building envelope and phase change material, phase change material integration and thermophysical property measurements and various experimental and numerical studies concerning the integration. Even if the integrated phase change material have a good potential for reducing energy demand, further investigations are needed to really assess their use.

856 citations