scholarly journals Automated Reconstruction of 3D As-Built Building Information Model for Building Energy Performance Assessment

2013 ◽  
Author(s):  
C. Kim ◽  
H. Son ◽  
C. Kim
Keyword(s):  
Performance Assessment ◽  
Building Energy ◽  
Information Model ◽  
Energy Performance ◽  
Building Information Model ◽  
Building Energy Performance ◽  
Building Information

scholarly journals Building Energy Performance Assessment Using an Easily Deployable Sensor Kit: Process, Risks, and Lessons Learned

2021 ◽  
Vol 6 ◽  
Author(s):  
Mario Frei ◽  
Chirag Deb ◽  
Zoltan Nagy ◽  
Illias Hischier ◽  
Arno Schlueter
Keyword(s):  
Performance Assessment ◽  
Building Energy ◽  
Energy Performance ◽  
Lessons Learned ◽  
Assessment Process ◽  
Heat Flux Sensor ◽  
Single Family ◽  
Performance Gap ◽  
Building Energy Performance ◽  
Implementation Challenges

In the building and construction sector, the mismatch between predicted and measured energy consumption is a well-known phenomenon called the performance gap. A promising approach to reduce the performance gap and thus improve the current building energy performance assessments are methods based on in-situ measurements. In this work, we present a building assessment process based on a novel, easily deployable wireless sensor kit. The basic sensor kit for building energy assessment presented in this study consists of a heating energy input node, several indoor temperature nodes, an outdoor temperature node, and a heat flux sensor. Specifically, the study outlines a medium-scale deployment of the sensor kit in eight occupied single-family homes in Switzerland and identifies the benefits of such an approach in the estimation of the overall heat loss coefficient and U-values. The findings of this study suggest that such sensor kits could be effectively used for rapid building performance assessment, and the paper concludes by outlining the potential benefits and implementation challenges of a larger scale study.

scholarly journals A structured method to define goals when developing a building energy performance assessment method in a legislative framework

2021 ◽  
Vol 1203 (3) ◽  
pp. 032047
Author(s):  
Kjartan Van den Brande ◽  
Marc Delghust ◽  
Jelle Laverge ◽  
Arnold Jannsens
Keyword(s):  
Performance Assessment ◽  
Building Energy ◽  
Energy Performance ◽  
Assessment Method ◽  
Tree Structure ◽  
Building Energy Performance ◽  
Energy Performance Of Buildings ◽  
Mixed Feelings ◽  
Legislative Framework ◽  
Set Up

Abstract To boost the energy performance of buildings, the EU has established a legislative framework including the Energy Performance of Buildings Directive (EPBD). Through this document, EU state members are incentivized to set up a Building Energy performance Assessment Method (BEAM), tailored to the specific needs of the country. There is no standard definition for the energy performance of a building. Since the options are numerous, it is important for the policymaker to define the goals of their specific BEAM first, before developing the BEAM itself. The definition of these goals is a subjective matter and can differ when asked to different organizations in the building sector. To comprehend the desires and perspectives from each different group, a structured overview of the goals that are important for the specific region is needed. For this paper, a method was developed to provide this structured overview and was tested on the legislative energy performance of buildings (EPB) framework of Flanders, Belgium. The Flemish framework was initiated in 2006 and is still in action today. The method consists of two steps. In the first step, a multi-level tree structure for goal mapping based on the Goal Breakdown Structure (GBS) was developed. The main goal, reducing global warming, is on top of the tree structure, which then subdivides into many sub-goals on different levels. An example of a goal on the lowest level of the structure could be the insulation level of the walls. In the second step, prominent stakeholders in the Flemish building industry, including policymakers, researchers, manufacturers, contractors and building owners, were surveyed to capture their expectations from a BEAM and to query whether the current BEAM corresponds with those expectations. The goal of this survey was to receive qualitative, not quantitative input from the stakeholders. In total, 33 respondents completed the survey. The survey results showed that, in general, the desired goals have not changed substantially compared to the pre-set goals in 2006. Trias Energetica is still the preferred guideline for the decision-making process of the building owner, although its absolute power has decreased slightly and seems to be more prone to the conditions. The current indicator for the overall energy needs (E level) is still strongly preferred, while the recently introduced S level (assessment of the envelope) attracts mixed feelings in terms of usefulness to the entire EPB framework. The overheating indicator receives the most critique for not being accurate enough due to the simplified, single zone BEAM

scholarly journals Accelerating Building Energy Retrofitting with BIM-Enabled BREEAM-NL Assessment

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8225
Author(s):  
Vyshali Simhachalam ◽  
Tong Wang ◽  
Yan Liu ◽  
Hans Wamelink ◽  
Lorena Montenegro ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Organizational Context ◽  
Evaluation Process ◽  
Building Energy ◽  
Energy Performance ◽  
Future Directions ◽  
Building Information Modelling ◽  
Starting Point ◽  
Building Information

The Paris Agreement requires building retrofitting practices to be more efficient and effective. However, the current practice for building energy retrofitting is lacking behind, and one reason for that is the time-consuming process of energy credit evaluation. Energy performance assessment such as BREEAM-NL in the Netherlands could apply a more automatic approach with the help of building information modelling (BIM) for an efficient building energy retrofitting evaluation process. However, to what extent BIM can help in accelerating energy performance evaluation in the BREEAM-NL certification process is under-examined. This paper first combines literature findings with practical interviews from a case study organization to present a holistic overview of the potential for automating energy-related credits evaluation in BREEAM-NL using BIM. To understand the possible impacts of such transition, a responsible, accountable, consulted, and informed (RACI) matrix is developed to map the impacts on different actors involved. Furthermore, to help practitioners in an organizational context to adopt a BIM-enabled energy credits assessment workflow, the case study organization is studied to (1) understand their current BIM use status; (2) propose a suitable starting point to take toward a BIM-enabled energy performance assessment for building energy retrofitting. Finally, the proposed starting point is demonstrated using a customized application, and the project team’s feedback is used to verify its efficiency and future directions are identified.

scholarly journals An easily-deployable wireless sensor network for building energy performance assessment

2017 ◽  
Vol 122 ◽  
pp. 523-528 ◽  
Author(s):  
Mario Frei ◽  
Johannes Hofer ◽  
Arno Schlüter ◽  
Zoltán Nagy
Keyword(s):  
Wireless Sensor Network ◽  
Performance Assessment ◽  
Sensor Network ◽  
Building Energy ◽  
Energy Performance ◽  
Wireless Sensor ◽  
Building Energy Performance
Sign in / Sign up

Export Citation Format

Share Document