scholarly journals Comparative energy performance simulation for passive and conventional design: A case study in Cairo, Egypt

2020 ◽  
Vol 6 ◽  
pp. 699-704 ◽  
Author(s):  
S. Mahmoud ◽  
M. Fahmy ◽  
M. Mahdy ◽  
I. Elwy ◽  
M. Abdelalim
Keyword(s):  
Energy Performance ◽  
Performance Simulation ◽  
Conventional Design

scholarly journals Energy Rehabilitation of Social Housing in Vulnerable Areas. Case study: a 1950s Building in a Medium-sized Mediterranean City

2019 ◽  
Vol 4 (1) ◽  
pp. 44
Author(s):  
Ruá María José ◽  
Huedo Patricia ◽  
Cabeza Manuel ◽  
Saez Beatriz ◽  
Civera Vicente
Keyword(s):  
Low Income ◽  
Social Housing ◽  
Urban Areas ◽  
Optimal Solution ◽  
Energy Performance ◽  
Urban Context ◽  
Building Stock ◽  
Performance Simulation ◽  
Urban Level

In the urban context, buildings play a key role as they are energy consumers. In well-established cities with a high percentage of aged building stock, the focus should lie on sensitive urban areas where the weakest population sectors and the worst physico-economic conditions are usually encountered. In this work, the energy refurbishment of social housing is proposed. A block of municipally owned buildings is selected as a case study to consider that public buildings play an exemplary role according to Directive 2012/27/EU. The group is formed by 12 buildings, which account for 120 dwellings.This study is grounded on two levels. First the urban level. The building is located in a prioritised urban Area of Rehabilitation, Renovation and Urban Regeneration (ARRU), according to the new local Land Plan. This area presents multidimensional vulnerability and considers urban, building, socio-demographic and socio-economic features. Second, the building presents very low energy performance. It was built in 1959 when a high demand of dwellings and the economic resources then available led to low-quality buildings that are far from meeting today’s standards.Some proposals are made, having in mind the specific features of the urban context. The energy refurbishment of the building is proposed, selecting the optimal solution, considering technical, environmental and economic criteria. The energy performance simulation shows a remarkable improvement of the energy performance, resulting in an improvement of the thermal comfort of the dwellers. Besides, a reduction in the energy consumption is reached, which would reduce the energy bills and, on the other hand, a reduction of the carbon emissions to the atmosphere, contributing to a better environment quality. Having in mind that the building is intended for social housing, energy poverty situations could be avoided, as dwellings are inhabited by low-income dwellers.

scholarly journals BUILDING SURVEY AND ENERGY MODELLING: AN INNOVATIVE RESTORATION PROJECT FOR CASA DEL FASCIO IN COMO

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 331-338
Author(s):  
A. Buda ◽  
S. Mauri
Keyword(s):  
Site Investigation ◽  
Energy Performance ◽  
Performance Simulation ◽  
Sustainable Building ◽  
Energy Modelling ◽  
Improvement Interventions ◽  
Definition Of ◽  
Open Question ◽  
Building Conservation

<p><strong>Abstract.</strong> Historic buildings are fragile systems to be managed and protected during time: in the task of heritage restoration, efficiency improvement interventions should enable a more sustainable building conservation and use. Such measures might be defined within the combination of building survey and energy performance simulation. A good knowledge of materials and physics characteristics is fundamental to weigh correctly any improvement intervention. This can be supported also by documentary research and diagnostics, to detect existing resources and conservation issues. However, how to match all collected qualitative and quantitative data with a building energy model is still an open question. Energy simulation alone gives a partial vision of heritage needs, excluding information which do not affect the thermal performance of the model; on the contrary, a whole building approach is necessary for defining restoration interventions. With the aim of suggesting a methodology to combine both fields of investigation, a case study has been chosen to our purpose: Giuseppe Terragni’s Casa del Fascio (1936). A multidisciplinary process with the combination of building survey, monitoring campaign, on-site investigation and energy modelling has been functional to the understanding of the real building needs and the definition of interventions. Furthermore, the analysis has given to the rediscover of Terragni’s microclimatic control system (not more existing), leading to the choice of reinventing - in a modern way – the existing devices (as curtains), well-balanced on building needs.</p>

Calibration Procedure for Energy Performance Simulation of a Commercial Building

2003 ◽  
Vol 125 (3) ◽  
pp. 251-257 ◽  
Author(s):  
Jongho Yoon ◽  
E. J. Lee ◽  
D. E. Claridge
Keyword(s):  
Building Energy ◽  
Calibration Procedure ◽  
Energy Performance ◽  
Performance Model ◽  
Commercial Building ◽  
Energy Audit ◽  
Billing Data ◽  
Performance Simulation ◽  
Base Load

Calibration of an energy simulation with actual data has generally been considered too difficult to be part of the energy audit procedure. The purpose of this paper is to develop a systematic method using a “base load analysis approach” to calibrate a building energy performance model with a combination of monthly utility billing data and sub-metered data such as is commonly available in large buildings in Korea. The calibration procedure was specifically developed to be suitable for use in both the audit and savings determination procedure within a retrofit process. The procedure has been visualized using a logical flow chart and demonstrated using the simulation of a 26-story commercial building located in Seoul as a case study. The results indicate that the approach developed provided a reliable and accurate simulation of the monthly and annual building energy requirements of the case study building.

scholarly journals Assessments on Sustainability Potential by Upgrade of Existing Heritage Buildings: a case study of Liyuan Courtyard in Qingdao, China

2020 ◽  
Author(s):  
Yi Huang ◽  
Yufan Xiao ◽  
Fan Yu
Keyword(s):  
Energy Efficiency ◽  
Energy Performance ◽  
Building Performance ◽  
Performance Simulation ◽  
Building Performance Simulation ◽  
Positive Effects ◽  
Energy Behavior ◽  
Heritage Buildings ◽  
Heritage Building

Abstract Background: The existing heritage buildings are considered as symbols of the original spirit of a city, which also contains vitality and resilience through centuries. In Qingdao, the Liyuan courtyard styles are still existed as a very regional and representative colonial residential architecture form in the urban development history from 1900s in this city. Method: The research here made the hypotheses of the heritage buildings can regain its authentic appearance while achieve energy efficiency in building performance through optimization and renovation strategies. The sustainability potentials assessment is discussed and evaluated with field investigation in a Liyuan building case study by on-site observation and building performance simulation analysis of two renovation options.Result and Discussion: One model with façade supplemented in the insulation layers in the envelope walls and another model with further upgrade with consideration of recycling materials mixed were discussed and estimated with building performance simulation method. Both scenarios improved the energy efficiency, while the advanced model could achieve better result in the building energy behavior dramatically.Conclusion: This research paper verified the hypotheses of sustainability embodied in Liyuan buildings. It also confirmed the vitality and resilience could be regained through history with considerable and reasonable guideline in strategy together with personal alternatives. Technologies innovation helps to improve their energy performance by reducing consumption or self-supplying on the existing buildings renovation actions. Every specific choices of renovation action could achieve low energy goals and impose optional positive effects on the behavior of the living comfort preference. Multicriteria considerations might influence the balanced between different factors when making decisions in the heritage building restoration and it is expected to empower the fresh glory in the development of heritage building protection and restoration.

scholarly journals Neighborhood Energy Modeling and Monitoring: A Case Study

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3716
Author(s):  
Francesco Causone ◽  
Rossano Scoccia ◽  
Martina Pelle ◽  
Paola Colombo ◽  
Mario Motta ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Early Stage ◽  
Energy Performance ◽  
Monitoring Plan ◽  
Performance Targets ◽  
Carrier Energy ◽  
Zero Carbon ◽  
Energy Grid

Cities and nations worldwide are pledging to energy and carbon neutral objectives that imply a huge contribution from buildings. High-performance targets, either zero energy or zero carbon, are typically difficult to be reached by single buildings, but groups of properly-managed buildings might reach these ambitious goals. For this purpose we need tools and experiences to model, monitor, manage and optimize buildings and their neighborhood-level systems. The paper describes the activities pursued for the deployment of an advanced energy management system for a multi-carrier energy grid of an existing neighborhood in the area of Milan. The activities included: (i) development of a detailed monitoring plan, (ii) deployment of the monitoring plan, (iii) development of a virtual model of the neighborhood and simulation of the energy performance. Comparisons against early-stage energy monitoring data proved promising and the generation system showed high efficiency (EER equal to 5.84), to be further exploited.

scholarly journals Decision-Making Processes in Controlling Exposure to Sunlight Supported by Simulation Tools: A Case Study in Warm Weather

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4100
Author(s):  
Mariana Huskinson ◽  
Antonio Galiano-Garrigós ◽  
Ángel Benigno González-Avilés ◽  
M. Isabel Pérez-Millán
Keyword(s):  
Decision Making ◽  
Global Analysis ◽  
Energy Performance ◽  
Information Modeling ◽  
The European Union ◽  
Evaluation Tool ◽  
Simulation Tools ◽  
Building Information ◽  
The Impact

Improving the energy performance of existing buildings is one of the main strategies defined by the European Union to reduce global energy costs. Amongst the actions to be carried out in buildings to achieve this objective is working with passive measures adapted to each type of climate. To assist designers in the process of finding appropriate solutions for each building and location, different tools have been developed and since the implementation of building information modeling (BIM), it has been possible to perform an analysis of a building’s life cycle from an energy perspective and other types of analysis such as a comfort analysis. In the case of Spain, the first BIM environment tool has been implemented that deals with the global analysis of a building’s behavior and serves as an alternative to previous methods characterized by their lack of both flexibility and information offered to designers. This paper evaluates and compares the official Spanish energy performance evaluation tool (Cypetherm) released in 2018 using a case study involving the installation of sunlight control devices as part of a building refurbishment. It is intended to determine how databases and simplifications affect the designer’s decision-making. Additionally, the yielded energy results are complemented by a comfort analysis to explore the impact of these improvements from a users’ wellbeing viewpoint. At the end of the process the yielded results still confirm that the simulation remains far from reality and that simulation tools can indeed influence the decision-making process.

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