scholarly journals Implementing Sustainability in Retrofitting Heritage Buildings. Case Study: Villa Antoniadis, Alexandria, Egypt

Heritage ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 57-87 ◽  
Author(s):  
Ahmed Khalil ◽  
Naglaa Hammouda ◽  
Khaled El-Deeb
Keyword(s):  
Energy Efficiency ◽  
Natural Ventilation ◽  
New Technologies ◽  
Sustainable Design ◽  
Adaptive Reuse ◽  
Renewable Energy Sources ◽  
Heritage Conservation ◽  
Base Case ◽  
Heritage Buildings

Sustainable design is believed to stand on the opposite side of heritage conservation. This view is supported by the fact that sustainable design requires invasive measures to implement new technologies and treatments that challenge the principle of minimum intervention in heritage conservation. Another point of view sees heritage conservation as an already act of sustainable development that protects and preserves social and cultural resources such as heritage buildings and their intangible values. On the other hand, research and practice have proven that heritage buildings can be the subjects of sustainable design projects that achieve outstanding measures of sustainability and energy efficiency while not compromising the authenticity of the heritage value of the building. This sustainable conservation reaches its peak in adaptive-reuse projects of heritage buildings as reusing the building guarantees its ongoing maintenance and promotes its social, cultural and economic values to society, while giving it the ability to withstand modern users’ comfort and energy efficiency standards. This research presents a case study of the adaptive-reuse project of Villa Antoniadis in Alexandria; a heritage building built in the mid-nineteenth century and in the process of a major adaptive-reuse project. The history and significance of the building will be studied as well as the conservation values of the current project, then some proposals for interventions that could achieve more energy efficiency for the project while conserving the building are discussed. The research included a simulation of the building, using building energy modelling software for the current adaptive-reuse project as a base case, and the hypothetical application of different proposed sustainable interventions such as thermal insulation, double glazing, shading, lighting control, natural ventilation, and photovoltaic energy generation, where the energy savings potentials for each proposed intervention were studied. The simulation proved a possible reduction of 36.5% in the cooling, heating and lighting energy consumption as well as generated 74.7% of the energy required for cooling, heating and lighting from renewable energy sources.

scholarly journals Numerical Assessment of Zebra-Stripes-Based Strategies in Buildings Energy Performance: A Case Study under Tropical Climate

Biomimetics ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 14
Author(s):  
Miguel Chen Austin ◽  
Kevin Araque ◽  
Paola Palacios ◽  
Katherine Rodríguez Maure ◽  
Dafni Mora
Keyword(s):  
Energy Efficiency ◽  
Thermal Comfort ◽  
Natural Ventilation ◽  
Heat Dissipation ◽  
Energy Performance ◽  
Base Case ◽  
Energy Needs ◽  
Numerical Assessment ◽  
Lower Temperature

Urban growth has increased the risk of over-heating both in the microclimate and inside buildings, affecting thermal comfort and energy efficiency. That is why this research aims to evaluate the energy performance of buildings in terms of thermal comfort (operative temperature (OP) levels, satisfied hours of natural ventilation SHNV, thermal lag), and energy efficiency (roof heat gains and surface temperatures) in an urban area in Panama City, using superficial-heat-dissipation biomimetic strategies. Two case studies, a base case and a proposed case, were evaluated using the Designbuilder software through dynamic simulation. The proposed case is based on a combined biomimetic strategy; the reflective characteristics of the Saharan ant applied as a coating on the roofs through a segmented pattern such as the Zebra’s stripes (one section with coating, and another without). Results showed that the OP decreased from 8 to 10 °C for the entire urban zone throughout the year. A reduction of 3.13% corresponding to 8790 kWh per year was achieved for cooling energy consumption. A difference of 5 °C in external surface temperature was obtained, having a lower temperature in which the biomimetic strategy was applied. Besides, it was evidenced that a contrasted-reflectivity-stripes pitched roof performed better than a fully reflective roof. Thus, the functionality of Zebra stripes, together with the reflective characteristics of the Saharan ant, provide better performance for buildings’ thermal regulation and energy needs for cooling.

scholarly journals A review of challenges and benefits of integration of CHP plant into the grid: a case study in Serbia

2021 ◽  
Author(s):  
Rade M. Ciric ◽  
Sasa N. Mandic
Keyword(s):  
Energy Efficiency ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Increase Energy Efficiency ◽  
High Voltage Supply ◽  
The Republic ◽  
Technical Solutions ◽  
The Impact

AbstractThe Republic of Serbia must make significant efforts to promote and exploit renewable energy sources and increase energy efficiency in all energy sectors to ensure energy security and economic competitiveness, reduce the negative impact on the environment from energy production and use, and contribute to global efforts to reduce greenhouse gases. Within the paper several issues of integration of recently realized CHP plant are introduced and discussed. Firstly, the legal and energy policy issues in the Republic of Serbia regarding connecting CHP to the grid are presented. The challenges and technical solutions for CHP connection to the grid, as well as power quality issues and the role of the CHP plant during the restoration of power supply during the maintenance of the substation and unplanned loss of high voltage supply, are presented and discussed. Finally, the impact of prospective massive integration of CHP on the energy balance and CO2 emission reduction in the province of Vojvodina in Serbia is investigated and discussed. Since it is the first CHP plant realized in Serbia, it is crucial that experience be shared to all potential stakeholders in the future energy efficiency projects.

scholarly journals PENATAAN ELEMEN SIRKULASI VERTIKAL PADA GEDUNG UNPAR JL.MERDEKA no.30 BANDUNG MELALUI PENDEKATAN SPACE SYNTAX DAN KRITERIA HERITAGE

2019 ◽  
Vol 4 (1) ◽  
pp. 64
Author(s):  
Rachadian Hadiwibowo
Keyword(s):  
Cultural Heritage ◽  
Quantitative Methods ◽  
Heritage Conservation ◽  
Historic Buildings ◽  
Vertical Circulation ◽  
Architectural Elements ◽  
Cultural Heritage Conservation ◽  
Heritage Buildings ◽  
Building Conservation

There is a need for easier vertical circulation facilities, especially given the need for people with disabilities and parents in historic buildings, especially in buildings that still function as public buildings to date. This is because in general these buildings use stairs as a means of vertical circulation while the activities inside have increased so that more efficient vertical circulation is needed such as elevators. The problem is how to determine the placement of vertical circulation facilities in historical buildings, which sometimes do not accommodate the placement of new vertical circulation facilities and placement should be in locations that are easily accessible and seen by users but at the same time also pay attention to the rules of buildingconservation rules. This study aims to show the use of the Space Syntaxmethod can be used in conjunction with the conservation study of historic buildings to determine the placement of vertical circulation facilities in buildings as a space study tool that will determine the location of placement in terms of accesibility and connectedness of space which will then be used to determine placement new elements in the building while paying attention to the principles of cultural heritage conservation. The study used quantitative methods of ekseprimental simulation with the use of Depthmap's computer program as a tool for analysis of simulation of the Space Syntaxmethod, supported by heritage provisions as a guide to limits of changes allowed in cultural heritage buildings. The results showed that the use of Space Syntaxcan be used in conjunction with the analysis of building conservation to determine elevator placement in locations that pay attention to the study of ease of achievement and observation of usersbut still pay attention to the influence of the placement on historical and architectural elements of the building shown in the case study of the UNPAR building Jl.merdeka no.30 Bandung.

Energy Efficiency Evaluation in a Pulp and Paper Industry in South Africa - A Case Study

2017 ◽  
Vol 32 ◽  
pp. 155-168
Author(s):  
Samuel A.O. Ilupeju ◽  
Hilton Maverengo ◽  
Freddie L. Inambao ◽  
Ntumba Marc Alain Mutombo
Keyword(s):  
South Africa ◽  
Energy Efficiency ◽  
Paper Industry ◽  
Significant Proportion ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Energy Utilization ◽  
Energy Losses ◽  
Base Case

Power consumption is becoming more expensive by the day. This is not far from the fact that power generation is facing a lot of challenges coupled with increasing demand. Industrial sector power demand shares a significant proportion of this generated power. It is therefore a necessary task to manage well industrial energy use through appropriate energy efficiency methods practice so as to minimise energy losses. In this study energy efficiency opportunities in pulp and paper (P&P) mill are identified and the saving potential is then quantified. An energy flow model with the help of an energy audit are used to quantify energy supply, generation, conversion and end use thereby exposing areas of energy losses of the mill. This analysis will serve as an eye opener to future and current P&P making operations in South Africa, and as a base case for stimulating changes toward more efficient energy utilization in the pulp and paper industry. Quite a reasonable energy losses avenues were identified, audited and options of improvements suggested. The results proved that quite a sensible amount of energy is lost in the P&P case study and a near future look into the opportunities and barriers have been noted.

scholarly journals Restoration of a Historic Building in Order to Improve Energy Efficiency and Energy Saving—Case Study—The Dining Room within the Žiča Monastery Property

2020 ◽  
Vol 12 (15) ◽  
pp. 6271
Author(s):  
Nenad Šekularac ◽  
Jelena Ivanović-Šekularac ◽  
Aleksandar Petrovski ◽  
Nikola Macut ◽  
Milan Radojević
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Historic Buildings ◽  
Historic Building ◽  
Improve Energy Efficiency ◽  
Analysis And Evaluation ◽  
Heritage Buildings ◽  
Research Findings ◽  
Dining Room

A proper systematic approach to the restoration of historic buildings is crucial in the preservation of heritage buildings. This paper presents the unity between the restoration of a historic building and sustainability. The aim of the research is to establish an effective method for the restoration of historic buildings and their reuse and sustainable renovation in terms of energy efficiency, in accordance with modern needs and conservation requirements while maintaining the authentic appearance. The main method in the paper is the observation of a historic building during its restoration and exploitation, analysis and evaluation of the results achieved in improving energy efficiency and energy saving in the example of the building within the Žica Monastery in Serbia, a cultural monument of exceptional importance. The subject of the research is the Dining Room within the Žiča Monastery and the analysis of the restoration results in order to ensure energy refurbishment and cultural heritage enhancement. The research findings are recommendations for the restoration and adaptive re-use of historic buildings, in accordance with modern requirements for comfort and environmental protection. The greatest contribution of this paper is the practical verification of energy refurbishment of the restored historic building, the Dining Room, by applying the principles and measures of energy efficiency, maintaining the authentic appearance of the building, in accordance with the conservation requirements.

Integration of Small Wind Energy Source for Optimization of Energy Efficiency in Residential Building

2014 ◽  
Vol 1041 ◽  
pp. 162-166
Author(s):  
Rastislav Ingeli ◽  
Eva Jankovichová ◽  
Minh Nguyen Tien ◽  
Miroslav Čekon
Keyword(s):  
Energy Source ◽  
Energy Efficiency ◽  
Renewable Energy ◽  
New Technologies ◽  
Housing Stock ◽  
Renewable Energy Sources ◽  
Residential Building ◽  
Energy Performance ◽  
Residential House ◽  
Key Indicators

According to current European strategy and effort, an integration of renewable energy sources (RES) applying of new technologies should have of crucial importance, especially with contribution to the energy efficiency optimizing in buildings. Concurrently, energy performance and energy consumption of the all housing stock is one of the key indicators that represent the adequate utility value of those efforts. The paper focuses on the proposal concept integration of renewable energy for residential house in relation to assessment of the building thermal and energy performance. The proposed concept applying of wind turbines is presented for residential building in terms of standardized target periods. Finally, payback period calculation demonstrates a certain potential of applying small wind turbine as a renewable energy source in residential building of recently given target periods of current technical regulation.

scholarly journals Mini-grid hybridization and demand side management on non-interconnected small islands: the case study of Ustica, Italy

2021 ◽  
Vol 238 ◽  
pp. 02008
Author(s):  
Paolo Cherubini ◽  
Guido Francesco Frate ◽  
Marco Antonino Maggiore ◽  
Andrea Micangeli ◽  
Lorenzo Ferrari
Keyword(s):  
Renewable Energy Sources ◽  
Demand Side Management ◽  
Base Case ◽  
Small Islands ◽  
Demand Side ◽  
Mediterranean Islands ◽  
Case Scenario ◽  
Base Case Scenario ◽  
Regulatory Constraints

Small Mediterranean islands are typically served by mini-grids based on inefficient, polluting and costly diesel generators that provide electricity and freshwater through desalination plants. The study focuses on the case study of the Italian island of Ustica, for which the actual consumption and generation load profiles for 2018 have been used to simulate different scenarios through HOMER Pro software. The scenarios tested the possible integration of renewable energy sources (photovoltaic, small wind turbines) and electrochemical storage in the system, based on a techno-economic, financial, and environmental analysis. In addition to generation-side interventions, demand-side management strategies have been evaluated by considering the desalter as a deferrable load and by introducing energy efficiency measures. Finally, a sensitivity analysis on the most influential parameters (diesel price, discount rate) has been conducted on the base case scenario. The proposed technical solutions are compatible with the environmental and regulatory constraints of the island and lead to reduced emissions and long-term savings. The savings would enable a reduction in the cross-subsidy that the mainland electricity users pay to cover the higher costs incurred for diesel generation in non-interconnected small islands.

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