Browsing by Author "Teksoy, Mustafa"

Now showing 1 - 2 of 2

A novel framework to evaluate the performance of responsive kinetic shading devices
(LLC Editorial of Journal "Light Technik" lights-nr@inbox.ru VNISI rooms 327334106 Prospect Mira Moscow 129626, 2019) Mustafa Teksoy; Onur Dursun; Teksoy, Mustafa; Dursun, Onur
Determining control parameters of kinetic shading devices introduces a dynamic problem to designers which can best be tackled by computational tools. Yet excessive computational cost inherits in reaching near optimum solutions led to exclusion of many design alternatives and weather conditions. Addressing the issue the current study aims to explore the design space adequately and evaluate the performance of responsive-kinetic shading devices (RKSD) by proposing a novel framework. Current framework adopts a surrogate-based technique for multi-objective optimization of control parameters of a RKSD on randomly sampled daylight hours. To test the plausibility of any results obtained by the proposed framework a controlled experiment is designed. Empirical evidences suggest RKSD outperforms the static one in daylighting and view performance metrics. However considering indoor temperature no significant differences observed. © 2020 Elsevier B.V. All rights reserved.
Tepkisel kinetik gölgeleme araçlarının erken tasarım aşamalarında performans değerlendirmesi için özgün bir yaklaşım
(2017) Teksoy, Mustafa; Sarıyıldız, İkbal Sevil; Dursun, Onur
Computational tools offer a great potential in the conceptual phase of architectural design, towards exploring numerous design alternatives that provide better environmental impact. Particularly in the domain of solar control with help of kinetic shading devices that respond to its environment, the function of computational tools is even more significant, since the determination of the control parameters introduces a dynamic problem. However, critical review of relevant literature suggests that the utilization of computational tools have failed to address some vital aspects. This has led exclusion of many design alternatives and weather conditions due to the high computational expenses. To this end, the current study aims to investigate the problem of adequately exploring the design space and evaluating the performance of responsive-kinetic shading devices (RKSD). For this purpose, we proposed a novel framework by implementing a surrogate-based technique for multi-objective optimization of control parameters of a conceptual RKSD on randomly sampled daylight hours. To test the adequacy of the proposed framework, an experimental research was designed. In this design, such methods as parameter initiation, variable randomization, simulation, database generation, neural networks, optimization, and hypothesis test were used in combination. Results revealed that using proposed framework one can adequately reach to optimum set of solutions in a fraction of a time when compared to traditional simulation-based optimization methods. More, utilizing proposed framework one can formally compare the performances between static shading and RKSD. In the case of our experimental design, RKSD outperforms the static one in daylighting and view metrics. However, considering indoor temperature no significant differences observed. To the best of our knowledge, the current work is the first to propose a framework, which allows an end user to conduct a formal comparison of selected performance metrics between responsive-kinetic and optimized-static shadings. The further works shall focus on the relationships between the weather conditions, design parameters, and the performance objectives. Due complex interactions among employed techniques, a user-friendly graphical user interface establishment shall also be in the agenda.