scholarly journals Development of a Building Information Modeling-Parametric Workflow Based Renovation Strategy for an Exemplary Apartment Building in Seoul, Korea

2018 ◽  
Vol 10 (12) ◽  
pp. 4494 ◽  
Author(s):  
Fabrizio Amoruso ◽  
Udo Dietrich ◽  
Thorsten Schuetze
Keyword(s):  
Energy Demand ◽  
Building Information Modeling ◽  
Energy Performance ◽  
Building Envelope ◽  
Information Modeling ◽  
Average Lifetime ◽  
Existing Building ◽  
Heating And Cooling ◽  
Building Information ◽  
Indoor Comfort

Apartments in South Korea have high maintenance costs and an average lifetime of 25 years due to poor construction qualities. The common apartment redevelopment strategy is completely demolishing the neighborhoods and then replacing them with new buildings. However, this research discusses the framework for the refurbishment of an existing building in Seoul using Building Information Modeling (BIM) and parametric tools. The virtual model of an exemplary existing building is constructed in a BIM environment. Parametric software is used to simulate the building’s environmental performance, in order to determine its energy demand for heating and cooling and the indoor comfort. In order to reduce the energy demand for heating and cooling, improve the indoor comfort, generate photovoltaic energy and extend the building’s lifetime, a modular building envelope renovation system is developed. Building simulation results of the improved building envelope are used to quantify the differences with the existing building. The research results illustrate significant improvements in energy performance, comfort and lifetime extension that can be achieved. Furthermore, a guideline for a streamlined building optimization process is provided, that can be transferred and used for the planning and optimization of other building renovation projects.

ENERGY ANALYSIS OF WALL MATERIALS USING BUILDING INFORMATION MODELING (BIM) OF PUBLIC BUILDINGS IN THE TROPICAL CLIMATE COUNTRIES

2016 ◽  
Vol 78 (10) ◽  
Author(s):  
Aidin Nobahar Sadeghifam ◽  
Abdul Kadir Marsono ◽  
Iman Kiani ◽  
Umit Isikdag ◽  
Ali Asghar Bavafa ◽  
...  
Keyword(s):  
Energy Saving ◽  
Building Information Modeling ◽  
Energy Analysis ◽  
Electrical Energy ◽  
Energy Performance ◽  
Information Modeling ◽  
Public Buildings ◽  
Wide Range ◽  
Building Information ◽  
Wall Materials

During the previous two decades, the energy saving potential using systematic building management is considered to be important which should be considered through the building lifecycle. Among the wide range types of different buildings, Public buildings are considered as one of the biggest energy-consuming sector in the world and major part of this amount is used by the air conditioning system especially in tropical climates. The most effective decisions related to sustainable design of a building facility are made in the feasibility and early design stages. Building Information Modeling (BIM) can expedite this process and provide the opportunity of testing and assessing different design alternatives and materials selection that may impact on energy performance of buildings. This paper aims at evaluating the efficiency of various types of wall materials with regard to theirs properties on energy saving. The case study in this paper is modeled by means of BIM application and then simulated by software, which is appropriate for energy analysis. The current energy consumption patterns of this case identified and shifted to the optimized level of energy usages by changing the walls materials to find most optimized of walls materials. Modification most optimized wall materials and energy analysis indicated 9347 Wh in Per meter square of electrical energy saving.

scholarly journals Energy Monitoring in a Heating and Cooling System in a Building Based on the Example of the Turówka Hotel

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1968 ◽  
Author(s):  
Marek Borowski ◽  
Piotr Mazur ◽  
Sławosz Kleszcz ◽  
Klaudia Zwolińska
Keyword(s):  
Energy Consumption ◽  
Energy Management ◽  
Energy Demand ◽  
Cooling System ◽  
Energy Performance ◽  
High Energy ◽  
Building Envelope ◽  
Large Variability ◽  
Heating And Cooling ◽  
And Control

The energy consumption of buildings is very important for both economic and environmental reasons. Newly built buildings are characterized by higher insulation and airtightness of the building envelope, and are additionally equipped with technologies that minimize energy consumption in order to meet legal requirements. In existing buildings, the modernization process should be properly planned, taking into account available technologies and implementation possibilities. Hotel buildings are characterized by a large variability of energy demand, both on a daily and a yearly basis. Monitoring systems, therefore, provide the necessary information needed for proper energy management in the building. This article presents an energy analysis of the Turówka hotel located in Wieliczka (southern Poland). The historical hotel facility is being modernized as part of the project to adapt the building to the requirements of a sustainable building. The modernization proposal includes a trigeneration system with a multifunctional reverse regenerator and control module using neural algorithms. The main purpose is to improve the energy efficiency of the building and adapt it to the requirements of low-energy buildings. The implementation of a monitoring system enables energy consumption to be reduced and improves the energy performance of the building, especially through using energy management systems and control modules. The proposed retrofit solution considers the high energy consumption, structure of the energy demand, and limits of retrofit intervention on façades.

scholarly journals Integrated BIM-Based LCA for the Entire Building Process Using an Existing Structure for Cost Estimation in the Swiss Context

2020 ◽  
Vol 12 (9) ◽  
pp. 3748 ◽  
Author(s):  
Anita Naneva ◽  
Marcella Bonanomi ◽  
Alexander Hollberg ◽  
Guillaume Habert ◽  
Daniel Hall
Keyword(s):  
Decision Making ◽  
Life Cycle ◽  
Cost Estimation ◽  
Building Information Modeling ◽  
Ghg Emissions ◽  
Information Modeling ◽  
Existing Building ◽  
Building Process ◽  
Building Information ◽  
Existing Structure

The building sector has a significant potential to reduce the material resource demand needed for construction and therefore, greenhouse gas (GHG) emissions. Digitalization can help to make use of this potential and improve sustainability throughout the entire building’s life cycle. One way to address this potential is through the integration of Life Cycle Assessment (LCA) into the building process by employing Building Information Modeling (BIM). BIM can reduce the effort needed to carry out an LCA, and therefore, facilitate the integration into the building process. A review of current industry practice and scientific literature shows that companies are lacking the incentive to apply LCA. If applied, there are two main approaches. Either the LCA is performed in a simplified way at the beginning of the building process using imprecise techniques, or it is done at the very end when all the needed information is available, but it is too late for decision-making. One reason for this is the lack of methods, workflows and tools to implement BIM-LCA integration over the whole building development. Therefore, the main objective of this study is to develop an integrated BIM-LCA method for the entire building process by relating it to an established workflow. To avoid an additional effort for practitioners, an existing structure for cost estimation in the Swiss context is used. The established method is implemented in a tool and used in a case study in Switzerland to test the approach. The results of this study show that LCA can be performed continuously in each building phase over the entire building process using existing Building Information Modeling (BIM) techniques for cost estimation. The main benefit of this approach is that it simplifies the application of LCA in the building process and therefore gives incentives for companies to apply it. Moreover, the re-work caused by the need for re-entering data and the usage of many different software tools that characterize most of the current LCA practices is minimized. Furthermore, decision-making, both at the element and building levels, is supported.

A Case Study on the Verification of Passive Office Energy Performance Comparing Actual Energy Consumption to Simulation Result

2013 ◽  
Vol 361-363 ◽  
pp. 427-430 ◽  
Author(s):  
Young Sun Ko ◽  
Sang Tae No
Keyword(s):  
Energy Consumption ◽  
Energy Performance ◽  
Building Envelope ◽  
Office Building ◽  
Simulation Accuracy ◽  
Existing Building ◽  
Heating And Cooling ◽  
Insulation Thickness ◽  
Actual Energy Consumption ◽  
Heating And Cooling Load

The objective of this study is to verify energy performance of passive office building compared to existing building using computer simulation tool, EnergyPlus. S building was selected as a passive office building, which is the first passive office building in KOREA, and the building satisfy the passive house standard. The annual energy consumption data were compared to the heating and cooling load result of EnergyPlus, to verify simulation accuracy. The conditions of existing building were selected from Korean envelope standard and the categories of the conditions are the insulation thickness and glazing composition. As a result, the passive office showed 28% reduced energy consumption, compared to the existing building, with ordinary envelope under Korean building envelope standard.

scholarly journals Energy Performance of Buildings with Thermochromic Windows in Mediterranean Climates

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6977
Author(s):  
Georgios E. Arnaoutakis ◽  
Dimitris A. Katsaprakakis
Keyword(s):  
Energy Demand ◽  
Mediterranean Climate ◽  
Three Dimensional ◽  
Energy Performance ◽  
Information Modeling ◽  
High Resolution Data ◽  
Energy Performance Of Buildings ◽  
Heating And Cooling ◽  
The Mediterranean ◽  
Comparative Results

This article presents comparative results on the energy performance of buildings in the Mediterranean. Many buildings in the Mediterranean exhibit low energy performance ranking. Thermochromic windows are able to improve the energy consumption by controlling the gains from sunlight. In this article, reference buildings in 15 cities around the Mediterranean are investigated. In this work, a dynamic building information modeling approach is utilized, relying on three-dimensional geometry of office buildings. Calculations of the energy demand based on computational simulations of each location were performed, for the estimation of heating and cooling loads. The presented study highlighted the need for high-resolution data for detailed simulation of thermochromic windows in buildings of Mediterranean cities. Temperature is one of the main climate parameters that affect the energy demand of buildings. However, the climate of Mediterranean cities nearby the sea may affect the energy demand. This was more pronounced in cities with arid Mediterranean climate with increased demand in air-conditioning during the summer months. On the other hand, cities with semi-arid Mediterranean climate exhibited relatively increased heating demand. With this parametric approach, the article indicates the energy saving potential of the proposed measures for each Mediterranean city. Finally, these measures can be complemented by overall building passive and active systems for higher energy reductions and increased comfort.

scholarly journals Energy Efficiency Evaluation of Different Glazing and Shading Systems in a School Building

2019 ◽  
Vol 111 ◽  
pp. 03052 ◽  
Author(s):  
Mohammed Khalaf ◽  
Touraj Ashrafian ◽  
Cem Demirci
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Demand ◽  
Energy Performance ◽  
Building Envelope ◽  
School Building ◽  
Total Energy Consumption ◽  
Heating And Cooling ◽  
Lighting Energy ◽  
Energy Efficiency Evaluation

The energy conversations methods and techniques take a significant role in the energy performance of the buildings. Façade and shading systems are in continuous development, and recent studies are showing the importance of implementation of such systems to reduce energy consumption and enhance the effectiveness of the building performance. School buildings are mostly being used during daytime, hence, require active use of sunlight. A measure that is taken on a school building envelope can prevent overheating and overcooling and reduce the heating and cooling energy consumption but at the same time can increase the lighting energy consumption vice versa. Thus, it is necessary to optimise the energy required for climatisation of a building with lighting energy demand. The main aim of the paper is to provide analysis for façade and shading systems applied to a school building and study the effectiveness of it on energy consumption and conservation. The case study for this paper is a typical building project designed to be located in Istanbul, Turkey and has a traditional façade system which is clear double layer windows without any shading devices. The analyses of the energy efficiency of these systems will be presented. The different glazing types and shading systems alternatives will show the most efficient one to be used as some optimised alternatives for the systems. Findings indicate that proper glazing and shading systems can reduce the needed energy for heating and lightening and thus total energy consumption of a school building significantly.

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