A novel design-based optimization framework for enhancing the energy efficiency of high-rise office buildings in urban areas
Journal article, 2019

Designing high-rise buildings is a complex and challenging task involving several parameters and variables. Recently, there have been major attempts to design the overall form of these buildings based on optimization approaches. This paper introduces a multi-objective optimization framework based on Genetic Algorithm, namely Energy Efficient Form-finder (EEF), consisting four main steps of Form-Generation, Form-Simulation, Form-Optimization and Form-Solutions. The EEF with a comprehensive design-based approach is evaluated through five functions considering objectives of minimizing cooling and heating demand and thermal discomfort time while maintaining operative temperature on the defined thermal comfort zone. This work studies the form combination of five reference buildings based on a new technique called “Building Modular Cell” in five different urban areas, resulting in twenty-five distinct design problems. According to the results, there is a great potential to adopt EEF in newly-built projects with a rectangular layout; while it can reduce the annual energy demand and thermal discomfort time of the optimal form combinations around 34% and 12% respectively. Finally, a series of qualitative and quantitative design-aid recommendations are presented based on 1998 best design solutions, which can be used as form-finding rules of thumb by architects and urban designers at the early design stages.

Urban microclimate

Multi-objective optimization

Design-based framework

Energy demand

Early design stage

Thermal discomfort time

Author

Kavan Javanroodi

Lund University

Tarbiat Modares University

Vahid Nik

Queensland University of Technology (QUT)

Lund University

Chalmers, Architecture and Civil Engineering, Building Technology

Mohammadjavad Mahdavinejad

Tarbiat Modares University

Sustainable Cities and Society

2210-6707 (ISSN)

Vol. 49 101597

Subject Categories

Architectural Engineering

Aerospace Engineering

Interaction Technologies

DOI

10.1016/j.scs.2019.101597

More information

Latest update

9/26/2019