• Energy Research

The requisition for maintainable constructions has been greatly raising over the last several years. To fulfil the maintainability necessities of a construction, decisions or changes must be done to a construction in the course of the preconstruction and design steps. This can be plausible utilizing building information modelling. To indicate the utilize of building information modelling in maintainable planning, an example nursing-house is received for modelling research. The energy efficiency of nursing-home is analysed utilizing Autodesk Revit and Green Building Studio simulation which contained different characteristics such as annual heating and cooling loads, annual energy usage. Through using the utilize of different building, insulation and roof materials in the nursing-home modelling, the nursing-home modelling is changed into a greener construction modelling. In addition, the effects of using green walls on the facade of the building on the energy performance were analysed. Utilizing simulation, the utilize of non-natural sources can be dramatically decreased through substituting for them with the utilize of sustainable natural sources by that means energy saving. Building information modelling has substantiated to be effective in providing maintainability with alternative material’s assessment and earlier decision-making. Furthermore, this study employed an integrated new MCDM model to evaluate the performance of four natural stones for utilize in a nursing home setting.

Nüfus miktarının artması nedeniyle enerji tüketimi hızlı bir şekilde artmaktadır. Hızlı enerji tüketiminin oluşturduğu çevresel sorunlara yönelik sürdürülebilir ve enerji etkin tasarım yaklaşımları yaygınlaşmaktadır. Binalarda enerji etkin iyileştirme ve enerji etkin tasarım konuları enerji sorunlarının çözümünde ve sürdürülebilirliğin sağlanmasında önemli bir etkendir. Bununla birlikte gelişen bilgisayar modellemeleri ve simülasyon yazılımları ile birlikte mimari tasarımda enerji etkin tasarım planlaması her geçen gün kolaylaştırmaktadır. Çalışma kapsamında, projelerin tasarım aşamasında enerji etkin tasarım parametrelerinin projeye eklemlenmesi ile enerji tasarrufu sağlamak amaçlanmıştır. Bu amaç doğrultusunda öncelikle Bina Bilgi Modelleme (BIM) tabanlı programlar açıklanarak bu programların tasarıma eklemlenmesinin yararları belirtilmiştir. Daha sonra enerji etkin tasarıma yönelik Batman ili iklim şartlarında tasarlanan tavuk çiftliğinin parametreleri belirlenmiştir. Belirlenen parametreler çiftliğin güney cephesi üzerinden oluşturulmuştur. İlk alternatif olarak güney cephede bimsblok kullanılmıştır. İkinci alternatifte ise güney cephesinde trombe duvar uygulaması 5 cm havalandırma boşluğu ile kullanılmıştır. Üçüncü, dördüncü ve beşinci alternatifler sırasıyla trombe duvarın 10, 15 ve 20 cm havalandırma boşluğu ile oluşturulmuştur. Oluşturulan 5 alternatife içten yalıtımlı olarak XPS (ekstrude polistren köpük) yalıtım malzemesinin eklenmesiyle 10 adet alternatif oluşturulmuştur. Tasarlanan tavuk çiftliği Autodesk Revit 2021 programında modellenerek bina enerji modeli oluşturulmuştur. On alternatifin her biri için oluşturulan bina enerji modelleri, gbXML dosyası olarak kaydedilmiştir. Daha sonra kaydedilen dosyaların Autodesk Green Building Studio ile enerji analizleri yapılmıştır. Çalışmanın sonuç bölümünde her bir alternatif için belirlenen ısıtma, soğutma ve toplam enerji tüketim miktarları değerlendirilmiştir. Batman ili iklim şartları için yapılan karşılaştırmada optimum koşullar sağlayan alternatifler belirlenmiştir.

This study investigates the optimum insulation thickness value using MATLAB Optimization Toolbox based on a mathematical model for sandwich walls that are formed with different insulation-building materials by different fuel types for a particular city located in the second climatic region of Turkey. In the second stage of study, using the BIM-based Revit simulation program, a building was designed with the same building-insulation materials under the same climate conditions. The six different wall performances were compared for the designed building. The study proposes a comprehensive approach by combining technical and economic factors in the sustainable design of buildings. The computational results indicate that using different energy alternatives has a significant impact on the air quality in residential areas. The lowest value is reached when natural gas is used. The energy cost savings change from 7.56 to 14.12 TRY/m2 for external walls. While payback periods vary between 2.15 and 3.76 years for external walls, the lowest period for all wall types is obtained for electricity, which has a high cost. The optimum insulation thickness for 10 years of lifetime varies between 0.02 and 0.16 m. This study reflects that the highest optimal insulating thickness is reached when electricity is utilized as the energy source for all wall types. According to the Revit analysis, the lowest energy consumption of 21,677 kWh during one year using natural gas was obtained for a building material of porous light brick and an insulation material of glass wool.

In the context of sustainable buildings, an ecological study of building and insulating materials is critical since it may assist affirm or shift the path of new technology development. Utilising sustainable material is a part of the sustainable improvement. For this reason, material fabrication is the primary process for the energy usage and release of intense environmental gaseous. The fabrication of the insulation and building materials, as in every fabrication process, comprises an energy consumption of crude materials in addition to the pollutants’ release. In buildings, insulation is a relevant technological resolution for cutting energy usage. This study aims to assess the primary energy consumption and the environmental effects of the fabrication of building and thermal isolation materials by using a new hybrid MCDM model. The proposed new hybrid MCDM model includes Fuzzy FUCOM, CCSD and CRADIS methods. While the subjective weights of the criteria were determined with the fuzzy FUCOM method, the objective weights of the criteria were determined with the CCSD method. Construction materials were listed with the CRADIS method. According to the fuzzy FUCOM method, the most important criterion was determined as the CR3 criterion, while the most important criterion according to the CCSD method was determined as the CR1 criterion. According to the combined weights, the most important criterion was determined as the CR3 criterion. According to the CRADIS method, the material with the best performance was determined as Cement Plaster. The methodology used in this study is a novel approach therefore it has not been used in any study before. In addition, since the CRADIS method is a newly developed MCDM method, the number of articles related to this method is low. Therefore, this research gap will be filled with this study.