Climate Change Impact on Multi-Objective Optimization: A Case Study on Educational Buildings

2020-05-23
Akın, Şahin
Işeri, Orçun Koral
Akgül, Çağla
Erdoğan, Bilge
Gürsel Dino, Ipek
The changing weather conditions due to global climate change is expected to have a direct impact on buildings’ energy demand and occupant comfort. These conditions are estimated to become more challenging for educational facilities due to their high occupant density and the students’ sensitivity to heat. This study aims to present an approach for a comparative analysis for multi-objective optimization results that are projected under different climate change conditions. Two separate optimization processes were performed using NSGA-II for an existing educational building, with the goal of minimizing occupant discomfort and energy use. The differences between the resulting Pareto-sets were analyzed based on the hypervolume difference and statistical evaluations, including the T-test and the distribution of properties. The results of the two optimization processes showed that future weather conditions should be considered on the retrofit process as two Pareto-set have resulted differently in terms of decision variable values and the hypervolume calculation. The discomfort hours (Y1-Current) for optimization with current data resulted in lower values compared to the optimization with projected data (Y1-Projected), on the contrary, the total energy demand (Y2-Current) objective results have resulted in higher values than the projected data results (Y1-Projected).
The Symposium on Simulation for Architecture and Urban Design (SimAUD), (23 - 25 Mayıs 2020)

Suggestions

Educational building retrofit under climate change and urban heat island effect
Akkose, Gizem; Akgül, Çağla; Gürsel Dino, İpek (2021-08-01)
Climate change (CC) and urban heat island (UHI) are important environmental forces that have serious consequences for the existing buildings, such as increased resource consumption and environmental footprint, adverse human health effects and reduced occupant comfort. In this context, educational buildings represent a critical category amongst other building typologies, due to their high energy use, high occupant density, atypical daily/annual occupancy patterns, and their occupants’ high vulnerability to h...
Comparison of BEST and LEED green building rating systems through cost based optimization
Uğurlu, Bengisu; Aksoy, Ayşegül; Department of Environmental Engineering (2020-1-25)
Buildings have significant effects on climate change due to vast resource consumption and pollution generation. Improving the effective use of limited resources and constructing environmentally friendly buildings are important in the realm of mitigations for climate change. Several countries have their green building rating systems tailored towards their regulations, distinctive climatic conditions, unique cultures and traditions, diverse building types and ages, or wide-ranging environmental, economic, and...
Carbon dioxide sequestration and enhanced oil recovery co-optimization
Akhundov, Nuri; Sınayuç, Çağlar; Department of Petroleum and Natural Gas Engineering (2021-9)
The worldwide growth of industry leads to continuous rise of anthropogenic emission amount into the atmosphere, which causes greenhouse effect all over the world, that is heating up the atmosphere and changing the global climate. On the other hand, carbon dioxide injection into oil reservoirs for the purpose of enhancement of oil recovery (CO2-EOR) has been commercially used for nearly 50 years. The operations in petroleum sector are being carried out in a way to maximize the recovered oil while keeping the...
Climate change impact assessment in residential buildings utilizing RCP4.5 and RCP8.5 scenarios
Akgul, Cagla Meral; Gürsel Dino, İpek (Journal of the Faculty of Engineering and Architecture of Gazi University, 2020-01-01)
Buildings - especially the residential buildings - are among the high priority areas in climate change due to their large share of CO2 emissions, their significant energy saving potentials and the increased comfort expectations of their occupants. A systematic and numerical investigation of how building performance will be affected by climate change in the future is crucial for both retrofitting the existing buildings and making long-term strategical decisions. This paper presents the simulation-based resul...
Thermal bridge detailing in tunnel form buildings with passive house principles
Yılmaz, Derya; Tanyer, Ali Murat; Department of Building Science in Architecture (2014)
As a result of depleting fossil fuels, increased energy prices and global warming, the growing importance of energy efficiency given birth to spread construction of energy saving buildings and use of new technologies around the world. Since thermal bridges in buildings may cause excessive heat loss, mold growth and deterioration of indoor air quality; to eliminate thermal bridges becomes very crucial both in existing buildings and in energy efficient buildings. In this thesis, energy demand of a six storey ...
Citation Formats
Ş. Akın, O. K. Işeri, Ç. Akgül, B. Erdoğan, and I. Gürsel Dino, “Climate Change Impact on Multi-Objective Optimization: A Case Study on Educational Buildings,” presented at the The Symposium on Simulation for Architecture and Urban Design (SimAUD), (23 - 25 Mayıs 2020), Vienna, Avusturya, 2020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/85322.