Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.5
3.2
Journals
Energies
Special Issues
CFD Simulation in Energy Efficiency and Building Energy Saving
energies-logo
Submit to Energies Review for Energies Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

CFD Simulation in Energy Efficiency and Building Energy Saving

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

Deadline for manuscript submissions: closed (10 November 2021) | Viewed by 15482

Special Issue Editors

Dr. Darya Nemova

E-Mail Website
Guest Editor
Institute of Civil Engineering, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, Russia
Interests: construction engineering; civil engineering; energy efficiency; fluent mechanics; ventilated facades; heat and mass transfer; building energy modeling (BEM)
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Vitaly Sergeev

E-Mail Website
Guest Editor
Institute of Energy and Transport Systems, Peter the Great Saint Petersburg Polytechnic University, 195251 Saint Petersburg, Russia
Interests: energy efficiency; heat and mass transfer; energy transition; energy policy; energy analysis

Special Issue Information

Dear Colleagues,

Improving the energy efficiency of buildings has great potential for reducing carbon emissions and the cost of building operations. It is necessary to look for reasoned decisions for the design and construction of energy-efficient buildings. From this point of view, the use, in this case, of the CFD approach is a good way to predict heat losses and get complete information on heat exchange in buildings. CFD modeling is an informative way to understand the properties of any new, different construction and technologies for energy savings.

This Special Issue aims to collect papers focused on new research results regarding ‘’CFD Simulation in Energy Efficiency and Building Energy Saving’’.

This Special Issue seeks contributions spanning a broad range of topics related but not limited to the following:

  • Simulation and experiments on building envelope for building energy efficiency;
  • Simulation and experiments on energy-efficient HVAC systems;
  • New construction materials and technologies in energy saving;
  • Modeling air flows in buildings and structures;
  • Building materials and products for energy efficiency;
  • Development of new perspective technological products;
  • Energy efficient and green buildings;
  • Heat and mass transfer in buildings;
  • Predictive analysis for energy saving;
  • Simulation and experiments for innovative heating and cooling systems.

Dr. Darya Nemova
Prof. Dr. Vitaly Sergeev
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

  • Energy efficiency
  • CFD simulation
  • Building energy modeling
  • Heat and mass transfer
  • Energy simulation
  • Energy transfer
  • Building envelopes

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

14 pages, 3503 KiB  
Article
A Study of Low-Potential Heat Utilization Methods for Oxy-Fuel Combustion Power Cycles
by Andrey Rogalev, Nikolay Rogalev, Vladimir Kindra, Olga Zlyvko and Andrey Vegera
Energies 2021, 14(12), 3364; https://doi.org/10.3390/en14123364 - 08 Jun 2021
Cited by 20 | Viewed by 2241
Abstract
The world community is worried about the effects of global warming. A few agreements on the reduction of CO2 emissions have been signed recently. A large part of these emissions is produced by the power production industry. Soon, the requirements for thermal [...] Read more.
The world community is worried about the effects of global warming. A few agreements on the reduction of CO2 emissions have been signed recently. A large part of these emissions is produced by the power production industry. Soon, the requirements for thermal power plant ecology and efficiency performance may become significantly higher. Thus, the contemporary problem is the development of highly efficient power production facilities with low toxic and greenhouse gas emission. An efficient way to reduce CO2 emissions into the atmosphere, which implies maintaining economic growth, is the creation of closed thermodynamic cycles with oxy-fuel combustion. The Allam cycle is one of the most promising among oxy-fuel power plants. A 50 MW pilot Allam cycle plant was built in Texas. The design for a commercial system with an electrical output of 300 MW is under development. This work is devoted to the improvement of the efficiency and environmental safety of oxy-fuel combustion power cycles via the utilization of compressed working fluid heat. The results of computer simulation obtained using AspenONE software demonstrated that an additional circuit in the multi-flow regenerator might increase net efficiency by 3.5%. Besides this, the incorporation of a supercritical carbon dioxide (S–CO2) Brayton cycle with recompression increased the efficiency by 0.2%. Therefore, the maximum net efficiency of the prospective power unit was 51.4%. Full article
(This article belongs to the Special Issue CFD Simulation in Energy Efficiency and Building Energy Saving)
►▼ Show Figures

Figure 1

23 pages, 7336 KiB  
Article
Building Retrofitting through Coupling of Building Energy Simulation-Optimization Tool with CFD and Daylight Programs
by Mehrdad Rabani, Habtamu Bayera Madessa and Natasa Nord
Energies 2021, 14(8), 2180; https://doi.org/10.3390/en14082180 - 14 Apr 2021
Cited by 16 | Viewed by 2498
Abstract
Simultaneous satisfaction of both thermal and visual comfort in buildings may be a challenging task. Therefore, this paper suggests a comprehensive framework for the building energy optimization process integrating computational fluid dynamics (CFD) daylight simulations. A building energy simulation tool, IDA Indoor Climate [...] Read more.
Simultaneous satisfaction of both thermal and visual comfort in buildings may be a challenging task. Therefore, this paper suggests a comprehensive framework for the building energy optimization process integrating computational fluid dynamics (CFD) daylight simulations. A building energy simulation tool, IDA Indoor Climate and Energy (IDA-ICE), was coupled with three open-source tools including GenOpt, OpenFOAM, and Radiance. In the optimization phase, several design variables i.e., building envelope properties, fenestration parameters, and Heating, Ventilation and Air-Conditioning (HVAC) system set points, were selected to minimize the total building energy use and simultaneously improve thermal and visual comfort. Two different scenarios were investigated for retrofitting of a generic office building located in Oslo, Norway. In the first scenario a constant air volume (CAV) ventilation system with a local radiator in each zone was used, while an all-air system equipped with a demand control ventilation (DCV) was applied in the second scenario. Findings showed that, compared to the reference design, significant reduction of total building energy use, around 77% and 79% in the first and second scenarios, was achieved respectively, and thermal and visual comfort conditions were also improved considerably. However, the overall thermal and visual comfort satisfactions were higher when all-air system was applied. Full article
(This article belongs to the Special Issue CFD Simulation in Energy Efficiency and Building Energy Saving)
►▼ Show Figures

Figure 1

16 pages, 4934 KiB  
Article
Humidity Distribution in High-Occupancy Indoor Micro-Climates
by Matthew Bonello, Daniel Micallef and Simon Paul Borg
Energies 2021, 14(3), 681; https://doi.org/10.3390/en14030681 - 28 Jan 2021
Cited by 3 | Viewed by 2176
Abstract
The general consensus among academics is that the spatio-temporal humidity distribution is more or less uniform in an indoor space. This has, for the large part, not yet been proven by an academic study; subsequently, this paper aims to demonstrate that this is [...] Read more.
The general consensus among academics is that the spatio-temporal humidity distribution is more or less uniform in an indoor space. This has, for the large part, not yet been proven by an academic study; subsequently, this paper aims to demonstrate that this is not always true. The paper makes use of a validated transient CFD model, which uses the Low Reynolds Number k-ϵ turbulence model. The model simulates people in a room at a constant skin temperature and emitting a constant source of humidity using source terms in the species equation. The model is eventually used to predict the implications of having a high source of humidity, in the form of occupancy, on the micro-climate’s spatio-temporal humidity distribution. The results for the high-occupancy case show that different locations experience various amounts of humid air, with a 31% difference between the lowest and highest locations. The amount of water vapor in each person’s proximity is deemed to be highly dependent on the flow of the inlet jet, with the people farthest from the jet having an overall less mass of water vapor in their proximity over the two-hour experimental period. This paper has concluded that there are, in fact, cases where the humidity non-uniformity inside an interior environment becomes substantial in situations of high occupancy. The results of this paper may be useful to improve the design of HVAC systems. Full article
(This article belongs to the Special Issue CFD Simulation in Energy Efficiency and Building Energy Saving)
►▼ Show Figures

Figure 1

25 pages, 10869 KiB  
Article
Selection of Heat Pump Capacity Used at Thermal Power Plants under Electricity Market Operating Conditions
by Milana Treshcheva, Irina Anikina, Vitaly Sergeev, Sergey Skulkin and Dmitry Treshchev
Energies 2021, 14(1), 226; https://doi.org/10.3390/en14010226 - 04 Jan 2021
Cited by 9 | Viewed by 3000
Abstract
The percentage of heat pumps used in thermal power plants (TPPs) in the fuel and energy balance is extremely low in in most countries. One of the reasons for this is the lack of a systematic approach to selecting and justifying the circuit [...] Read more.
The percentage of heat pumps used in thermal power plants (TPPs) in the fuel and energy balance is extremely low in in most countries. One of the reasons for this is the lack of a systematic approach to selecting and justifying the circuit solutions and equipment capacity. This article aims to develop a new method of calculating the maximum capacity of heat pumps. The method proposed in the article has elements of marginal analysis. It takes into account the limitation of heat pump capacity by break-even operation at electric power market (compensation of fuel expenses, connected with electric power production). In this case, the heat pump’s maximum allowable capacity depends on the electric capacity of TPP, electricity consumption for own needs, specific consumption of conditional fuel for electricity production, a ratio of prices for energy resources, and a conversion factor of heat pump. For TPP based on combined cycle gas turbine (CCGT) CCGT-450 with prices at the Russian energy resources markets at the level of 2019, when operating with the maximum heat load, the allowable heat pump capacity will be about 50 MW, and when operating with the minimum heat load—about 200 MW. Full article
(This article belongs to the Special Issue CFD Simulation in Energy Efficiency and Building Energy Saving)
►▼ Show Figures

Figure 1

13 pages, 1690 KiB  
Article
Analysis of the Efficiency of Using Heat Exchangers with Porous Inserts in Heat and Gas Supply Systems
by Natalia Rydalina, Elena Antonova, Irina Akhmetova, Svetlana Ilyashenko, Olga Afanaseva, Vincenzo Bianco and Alexander Fedyukhin
Energies 2020, 13(22), 5854; https://doi.org/10.3390/en13225854 - 10 Nov 2020
Cited by 6 | Viewed by 1854
Abstract
The creation of efficient and compact heat exchangers is one of the priority tasks arising during the design of heat and gas supply to industrial and residential buildings. As a rule, finned surfaces and turbulization of heat carrier flows are used to increase [...] Read more.
The creation of efficient and compact heat exchangers is one of the priority tasks arising during the design of heat and gas supply to industrial and residential buildings. As a rule, finned surfaces and turbulization of heat carrier flows are used to increase the efficiency of heat exchange in heat exchangers. The present paper proposes to use novel materials, namely porous material, in the design of highly efficient heat exchangers. The investigation was carried out experimentally and theoretically. To study the possibility of creating such heat exchangers, a multi-purpose test bench is created. The aim of the study was to assess the intensity of heat transfer in heat exchangers using porous metal. Laboratory tests are carried out as part of the experimental study. In the theoretical study, the classical equation for the change in the heat flux density when the coolant passes through the porous insert was used. As a result, a mathematical model was obtained in the form of a second-order differential equation. Boundary conditions were set and a particular solution was obtained. The results of theoretical calculations were compared with experimental data. The performed study experimentally confirmed the efficiency of using porous metal inserts in the design of shell-and-tube heat exchangers. The compiled mathematical model allows one to perform engineering calculations of the considered heat exchangers with porous inserts. Full article
(This article belongs to the Special Issue CFD Simulation in Energy Efficiency and Building Energy Saving)
►▼ Show Figures

Figure 1

20 pages, 6540 KiB  
Article
Cooling Panel with Integrated PCM Layer: A Verified Simulation Study
by Renars Millers, Aleksandrs Korjakins, Arturs Lešinskis and Anatolijs Borodinecs
Energies 2020, 13(21), 5715; https://doi.org/10.3390/en13215715 - 02 Nov 2020
Cited by 9 | Viewed by 1924
Abstract
The focus of this research paper is to develop a verified simulation model for a cooling panel with integrated phase-change materials (PCMs)—a stainless steel panel filled with PCM and integrated hydronic piping circuit. This solution is targeted for passive cooling of residential buildings [...] Read more.
The focus of this research paper is to develop a verified simulation model for a cooling panel with integrated phase-change materials (PCMs)—a stainless steel panel filled with PCM and integrated hydronic piping circuit. This solution is targeted for passive cooling of residential buildings in Baltic Sea region that experience overheating for most of the year due to highly insulated building envelopes and extensive glazing—a phenomena for nearly zero energy buildings (NZEBs). This approach aims to maintain comfortable indoor temperature all year round by passive means—free-cooling, adiabatic (evaporative) cooling or limited mechanical cooling. The simulations are performed with IDA ICE 4.8 and the measurements for simulation model verification are collected from a test chamber. The results show that reasonable agreement can be reached for simulated and experimentally measured data. Full article
(This article belongs to the Special Issue CFD Simulation in Energy Efficiency and Building Energy Saving)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop