Onur Dursun, Dr.-Ing.
Department of Built Environment, Liverpool John Moores University
Liverpool, UK
Feyza Durmuşlar, MSc and Duhan Ölmez, MSc
Faculty of Architecture, Yasar University
Izmir, Turkey
High-density urban areas contain large number of historical buildings whose structures and artistic values are protected by regulations. This restricts the improvements can be made to building envelope to reduce energy demand of historical buildings. Therefore, immediate urban surroundings (IUS) may play a central role on energy performance of historical buildings (EPHB). Yet, literature has provided little or no evidence, so far. To address the gap, the current experimental inquiry aims to test the significance of IUS’s influence on the EPHB. To achieve, historical structure in hot-humid climate was selected and surveyed thoroughly. Control and intervention cases were considered to measure the influence IUS. The control case corresponds to the former state of IUS; whereas the intervention described as the IUS which includes a recently built office block with reflective glass façade. The numerical result obtained from computational thermal simulations were used for comparison. Accordingly, the increase in heating demand substantially surpassed the decrease in cooling demand for the case under study. Therefore a significant increase in total energy demand was observed in the presence of intervention. In addition, the energy performance of the individual volumes located in the lower floors presented higher fluctuations due to intervention’s shading effect.
Key Words: Historical Buildings, Urban Surroundings, Energy Performance, Thermal Simulation, Paired T Test, Experimental Design