Showing 2 results for Ghanbaran
Abdulhamid Ghanbaran, Meysam Daloe Heydari,
Volume 32, Issue 4 (Special Issue: Green Housing, Guest Editor: Dr. Abbs. Yazdanfar 2022)
Abstract
The demand for energy has increased all over the world, and the construction industry makes up a high percentage of energy consumption. Different design components, construction, and exploitation regarding the field of construction energy consumption and the drive towards sustainability have been taken into consideration; however, energy conservation with an emphasis on the user's behaviors has been ignored. The purpose of this research is to provide a quantitative definition of the impact of behavior on energy consumption in three residential, institutional, and educational occupancies in one apartment through survey and simulation. In this research, by allocating three different occupancies to one building in Qom, the cooling and heating loads for each occupant have been compared in a one-year interval. First, the building modeling was carried out in Ecotet software and put in Energyplus software. Then by assuming a single building and describing three different patterns of using the space in Energyplus, the outcomes were compared. The results show that the reduction or increase in energy consumption in each occupancy was influenced by the number of users and the patterns of their activities or clothing. Reducing the duration of presence or changing the work hours in warm seasons of the year can significantly help reduce energy consumption in educational and institutional occupancies in hot and dry climates. The residential users' economic motives can be one of the reasons for reduced energy consumption in residential occupancies, compared to institutional occupancies.
Abdul Hamid Ghanbaran, Meysam Daloe Heidari,
Volume 35, Issue 2 (4-2025)
Abstract
The rise in energy consumption in recent years has not only heightened concerns about the depletion of fossil resources but has also led to severe and threatening environmental changes worldwide. Buildings play a significant role as major energy consumers, with residential buildings being particularly important due to their continuous use throughout the day and night. This study aims to investigate the impact of thermal insulation applied to the external walls of residential buildings on cooling and heating energy consumption. Additionally, it seeks to determine the differences between various placements of thermal insulation and identify their optimal thicknesses. Given that testing and comparing different scenarios on an accurate scale would require substantial time and resources, this research employs a simulation-based approach. Modeling and simulations were conducted using Rhino and EnergyPlus software. For this purpose, three common land plot sizes from the city of Qom were selected, and each was simulated in two configurations (north-facing and south-facing) and seven geographical orientations. The final outputs include (1) the percentage contribution of each external wall in reducing energy consumption, (2) the priority ranking of walls for insulation, (3) the effect of the last floor ceiling and pilot roof insulation, and (4) the recommended optimal thickness for thermal insulation. By analyzing the energy load reductions achieved, the study determines the most effective conditions and optimal thicknesses for thermal insulation in the external walls of buildings
