Cooling and heating energy performance of a building with a variety of roof designs; the effects of future weather data in a cold climate

Abstract

Building engineers commonly use the Typical Meteorological Year (TMY) weather data for simulation and design purposes. However, the nature of TMY in excluding weather extremes makes them less suitable to investigate the effect of potential climate change on building design as climate change likely increases the frequency and magnitude of those extreme conditions. The current practice of designing buildings has lacked a clear method to incorporate future climate change trends. An approach is used to compare present weather simulation results of a commercial building with varying roof reflectance and insulation thermal resistance parameters with future year-by-year results which are affected by potential climate change. Future weather data for year-by-year simulations is obtained by "morphing" historical weather data with a General Circulation Model (HadCM3). Mean energy consumption and optimal roof configurations are discussed with regards to climate change over the study period, and are compared to results obtained with TMY data. Results show that increased roof solar reflectance always lead to less mean and less variant cooling energy consumption. The study shows the importance of considering possible future climate scenarios and in building energy performance design.

Impact of Passive Cooling on Thermal Comfort in a Single-Family Building for Current and Future Climate Conditions

“…One popular method to predict the future climate is the so-called morphing method. Numerous scientists [22,25,[33][34][35][36] use and develop this method. In their study Escandón et al [33] use the CCWorldWeatherGen [37] software to generate future data.…”

“…However, the authors predict that in the future, the differences would be more significant and whenever possible, RMC models should be used. Hosseini et al [25] examined the energy demand of buildings with various roof designs. They took into account the current and future climate and used the General Circulation Model (HadCM3) to create future weather data.…”

Atmosferik Sınır Tabakası Stabilitesinin Bina Yüzey Sıcaklığı Üzerindeki Etkisi

“…Binaların çevresindeki hava akışı ve sıcaklık dağılımı Hesaplamalı Akışkanlar Dinamiği (HAD) ile başarı ile modellenebilmektedir (Allegrini, Dorer, & Carmeliet, 2015;Bartak et al, 2002;Hosseini, Tardy, & Lee, 2018). Bu modellemeler ışığında bina yüzeyindeki sıcaklık farklarının binaların ısı performansı üzerindeki etkileri açığa çıkartılmıştır.…”

Initial approximation of the implications for architecture due to climate change

“…Aside from the fact that the combined effect of direct and indirect impacts could affect different building design strategies for achieving the required energy efficiency (Cao, Li, Wang, Xiong, & Meng, 2017;European Parliament, 2010;Hosseini, Tardy, & Lee, 2018), these factors could have an impact on the design and development of urban energy systems (i.e. district heating and cooling systems, DHCSs).…”