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What’s Next for Building Energy Efficiency?

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

Deadline for manuscript submissions: closed (1 June 2022) | Viewed by 1630

Special Issue Editors


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Guest Editor
DTU Civil Engineering, Department of Civil Engineering, Technical University of Denmark, Brovej, Building 118, room 214, 2800 Kgs. Lyngby, Denmark
Interests: heating; cooling; ventilation; building design; low-temperature heating-high temperature cooling; energy utilisation; commissioning; space heating; building data; modelling

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Guest Editor
Department of Civil and Architectural Engineering - Design and Construction (Head of Section), Aarhus University, 8000 Aarhus, Denmark
Interests: building science; sustainable buildings; building simulation; indoor environmental quality; commissioning; building design process
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Special Issue Information

Dear Colleagues,

Energy use for maintaining comfortable indoor environments in buildings is globally the single largest contributor to greenhouse gas (GHG) emissions. Continuous research and development in increased building energy efficiency during the operation phase is therefore a vital component in realisation of decarbonisation of the building sector to a sustainable level.

In this special issue, we wish to collect and display original contributions reporting on recent advances in theoretical and experimental research that reduces the GHG emissions during operation of existing and new buildings without increasing life-cycle GHG emissions or negatively impact the indoor environmental quality.

We invite contributions describing any kind of novel solutions for reduction of the energy demand side whether it is solutions for permanent reduction of building energy and/or solutions that enables the operation of buildings to provide temporal demand response.

Relevant topics:

  • Building enclosures
  • Building designs
  • Heating systems
  • Cooling systems
  • Domestic hot water systems
  • Demand-response solutions
  • Building energy management systems
  • Commissioning solutions
  • Energy storage in buildings
  • Ventilation systems
  • Building plants

Dr. Christian Anker Hviid
Dr. Steffen Petersen
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 submissions that pass pre-check are 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 2600 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

  • Building envelope
  • Space heating
  • Domestic hot water
  • Cooling
  • Energy flexibility
  • Energy savings
  • Energy storage
  • Commissioning

Published Papers (1 paper)

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Research

31 pages, 59323 KiB  
Article
Numerical Feasibility Study of Self-Regulating Radiant Ceiling in Combination with Diffuse Ceiling Ventilation
by Marie Rugholm Krusaa and Christian Anker Hviid
Energies 2022, 15(4), 1319; https://0-doi-org.brum.beds.ac.uk/10.3390/en15041319 - 11 Feb 2022
Cited by 1 | Viewed by 1285
Abstract
A focus on indoor comfort and tightening targets for energy savings in buildings presents new opportunities for heating, ventilation, and air-conditioning products (HVAC). This paper presents a novel comfort solution that integrates a suspended radiant ceiling with diffuse ventilation, dubbed HVACeiling. In combination [...] Read more.
A focus on indoor comfort and tightening targets for energy savings in buildings presents new opportunities for heating, ventilation, and air-conditioning products (HVAC). This paper presents a novel comfort solution that integrates a suspended radiant ceiling with diffuse ventilation, dubbed HVACeiling. In combination with the concrete slab, the HVACeiling has the potential to provide thermal comfort with minimal temperature offset, which supports operation of the heating and cooling system at temperatures very close to the room comfort temperature. The paper presents a parametric numerical study of the concept in a simplified two-pipe layout with fixed flow and fixed temperatures. First, the analysis was focused on different internal and solar loads, heat losses, and climatic locations with the aim of assessing the potential of self-regulation, i.e., no active controls, thermal comfort, ability to reduce peak loads and the consequential building design considerations. Secondly, the purpose was to analyse the concept in a generic office building with five offices and one meeting room and compare it to other HVAC solutions. The whole-year analyses of heating, cooling, energy performance, and thermal comfort were done using the building performance simulation software IDA ICE. It was found that it was possible to create thermal comfort in Paris, Munich, and Copenhagen with water circulating constantly with fixed temperatures of 20–24 °C without controls and with window sizes from 15 to 30% of the floor area. The studies showed that the HVACeiling reduced the operative peak temperatures on the warmest days in comparison with a standard radiant ceiling with mixing ventilation by 1 K. Compared to all-air solutions, the HVACeiling reduced the yearly energy consumption by 20–30% and the peak power in summer up to 69%. This study indicates that thermal comfort is achievable in a European context even at very small temperature offsets, which supports the use of more renewable energy sources. Full article
(This article belongs to the Special Issue What’s Next for Building Energy Efficiency?)
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