Special Issue "Renewable Energy Systems in the Design of Energy-Efficient Buildings"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Energy and Buildings".

Deadline for manuscript submissions: 30 December 2021.

Special Issue Editors

Prof. Fernando Lopez-Rodriguez
E-Mail Website
Guest Editor
Badajoz School of Industrial Engineering, Universidad of Extremadura, Badajoz, Estremadura, Spain
Interests: renewable energies; project management; energy-efficient buildings; buildings with smart grids; nearly zero-energy buildings (nZEB)
Prof. Dr. Justo García Sanz-Calcedo
E-Mail Website
Guest Editor
Department of Engineering Projects, University of Extremadura, Badajoz, Estremadura, Spain
Interests: innovations in the research of healthcare buildings; healthcare engineering; buildings; project engineering
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Special Issue Information

Dear Colleagues,

Renewable energy sources are considered to be all those that arise from non-fossil renewable sources, i.e., wind, solar, aerothermal, geothermal, hydrothermal, ocean, hydro, biomass, sewage treatment plant gas and biogas, and green hydrogen, among others. Some of these types of energy can be implemented in buildings to improve their environmental impact. In this sense, renewable energy should not be considered as an added element to a building since, from a design point of view, it should be an integrated element in the building. Therefore, new buildings should be designed taking into account this variable from the beginning.

At the same time, new solutions appear in the fields of building with smart grids, renewable energies and battery or hydrogen storage, innovative thermal envelopes in buildings with respect to thermal insulation, and passive heating and cooling techniques. Finally, energy-efficient buildings based on the use of heat generated in photovoltaic solar chimneys and ventilation by the air through sheets of water must also be considered.

This Special Issue includes new research and the latest technologies related to ‘’Renewable Energy Systems in the Design of Energy-Efficient Buildings’’. In particular, it includes a series of documents focused on the following:

  • Energy-efficient buildings;
  • Nearly zero-energy buildings (nZEB);
  • Building eco-design;
  • Building energy systems;
  • Innovative thermal envelopes;
  • Efficient installations;
  • Hydrogen HVAC systems;
  • Solar energy;
  • Aerothermal;
  • Wind energy;
  • Geothermal;
  • Biomass;
  • Energy hybridization;
  • Buildings with smart grids, renewable energies, and battery storage;
  • Buildings with smart grids, renewable energies, and hydrogen storage.

We hope this Special Issue will improve the overall efficiency of engineering projects and help to minimize design failures.

Prof. Fernando Lopez-Rodriguez
Prof. Justo García Sanz-Calcedo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nZEB buildings
  • Eco-design
  • Building renewable energy systems
  • Energy-efficient buildings
  • Renewables with energy storage
  • Smart energy grids
  • Hydrogen storage
  • Batteries storage

Published Papers (1 paper)

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Research

Article
Design and Performance Evaluation of a Heat Pump System Utilizing a Permanent Dewatering System
Energies 2021, 14(8), 2273; https://doi.org/10.3390/en14082273 - 18 Apr 2021
Viewed by 382
Abstract
The earth provides a vast resource of groundwater from aquifers a few meters beneath the surface. Thus, buildings that use underground space must be equipped with dewatering wells to drain the permeated groundwater to the sewage pipelines to ensure the structural stability of [...] Read more.
The earth provides a vast resource of groundwater from aquifers a few meters beneath the surface. Thus, buildings that use underground space must be equipped with dewatering wells to drain the permeated groundwater to the sewage pipelines to ensure the structural stability of the building. Although the inflowing groundwater temperatures and flow rates are stable enough for groundwater to be used as an energy source, 79% of the permeated groundwater is discarded through the sewers, generating significant sewerage expenses. This study introduced a novel heat exchanger module to utilize the permeated groundwater as an unused energy source using heat pumps, and the performance of the system was evaluated by TRNSYS simulations. First, the sizing of the unit heat exchanger module was proposed according to the mean inflow rate of the permeated groundwater. Second, the heat pump system was configured using multiple modules in the source-side loop. Finally, the performance of the proposed heat pump system was compared with that of a conventional air source heat pump using realistic load and temperature profiles. This preliminary study demonstrated interesting performance results, with a coefficient of performance for heating that was higher than that of a conventional heat pump system by 0.79. The results show the potential utilization of the systems for a construction project requiring large-scale underground spaces, where abundant groundwater is available. Full article
(This article belongs to the Special Issue Renewable Energy Systems in the Design of Energy-Efficient Buildings)
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