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International Journal of Design Engineering (4 papers in press)
DISINFECTANT CHAMBER FOR KILLING BODY GERMS WITH INTEGRATED FAR-UVC CHAMBER (FOR COVID-19) by Sangam Sahu, Shivam Krishna Pandey, Atul Mishra Abstract: A human body can be infected by over 200 viruses existing in the world. A share of these viruses would just stick to the human body (for exterior) but not infect it per se. We propose a disinfecting chamber / Magnetic body scanner, used to screen persons entering a security-controlled area for the presence of security threats hidden under the clothing such as guns, knives, explosives and contrabands. Just like the body scanner, an innovative scanner system is required to disinfect and sanitize the body from life threatening viruses such as the SARS-Cov 19 (Corona Virus). The scanner chamber has five sections, namely, the entrance, thermal image scanner, FAR-UVC chamber, disinfectant spray chamber, and the exit section. The integrated thermal image scanning section can detect the body temperature with the help of a thermal image shown on the computer screen. The FAR-UVC chamber is used to extract the virus-killing property of FAR-UVC rays proven to have negligible damage on the human skin. The disinfectant chamber is where the human body is sprayed with a disinfectant after which he or she is allowed to exit the chamber. Keywords: FARUVC; disinfectant spray; sanitization chamber.
Coherence of Interior and Exterior Formal Qualities in Parametrically Designed Buildings by Morteza Hazbei, Carmela Cucuzzella Abstract: Parametrically designed buildings often have spectacular exterior forms, quasi-sculptural, that catch the eye of the passers-by. However, the indoor space design of parametric architecture has received less attention due to over emphasis on exterior aesthetic requirements. This may lead to superficial aesthetics where the quality of the indoor space is not compatible with the outer building envelope. This paper seeks to highlight the importance of coherency between these two parts of parametrically designed buildings. To do this, we conducted a two-step survey with architecture students where we first presented a set of different views of indoor and outdoor spaces of some parametric buildings. They were asked to match the images of the interior spaces to images of the exterior facades. In the second step, students were asked to evaluate each building by their formal criteria (specifically the coherence of the fa Keywords: Parametric design; Coherency; Exterior façade; Interior spatial quality; Aesthetic.
Emotional characterization of chairs by descriptors, neural network and verbalized analysis by Cyril Bertheaux, Rosario Toscano, Roland Fortunier, Nicolas Poisson, Jean-Christophe Roux, Céline Borg Abstract: In this paper, the emotional value of chairs is evaluated from a sample covering more than a century of design (1900-2014). The purpose of this research is to study the emotional responses to the visual perception of chairs. Emotional reactions are studied according to two protocols. The first protocol classically accesses the emotional valence and arousal of the chairs, whereas the second consists of validating emotional descriptors as key factors for the evaluation of the valence. These emotional descriptors appears to be very important for the designer, particularly when the shopping is online. The product space is first created, by selecting 70 chairs from the collection of the Museum of Modern and Contemporary Art in Saint-Etienne. According to the first protocol, it is tested with a Circumplex model, which collects valence and arousal from a panel of 65 individuals. Then, 18 chairs are selected out of this product space: the most unpleasant, the most pleasant, and the most neutral ones. According to the second protocol, 6 emotional descriptors are proposed: originality, comfort, beauty, confidence, balance of proportions and stability. The evaluation of these descriptors is collected, together with the valence of the chairs, on a new panel of 26 participants. Using a mathematical model based on neural network, an "estimated valence" is then derived from the evaluation of these emotional descriptors. This estimated valence is finally compared with the verbalized valence. The results show that there is a good correlation between the verbalized and the estimated valences. The emotional descriptors proposed are thus validated and can be used as key factors for designing chairs. Keywords: chair; emotional design; descriptive evaluation; neural network.
Special Issue on: ICESF 2019 Energy and Sustainable Futures
Computational Fluid Dynamics Modelling to design and optimise Power Kites for Renewable Power Generation by Christopher Pegg, Yatin Suri, Sheikh Islam, Abhishek Asthana, Mamdud Hossain Abstract: Power kites provide the potential rewards of obtaining the disused energy supply from high altitude wind. This paper aims to provide a design of power kites and optimise the potential for renewable power generation. The power kite was modelled using Computational Fluid Dynamics to study its characteristics. The numerical modelling results were compared against the wind tunnel experimental study involving two 3D printed power kites. The design was optimised using several variables including aerofoil choice, surface roughness, wind speed and operating parameters. The results suggest that operating the kites at minimum 15 m horizontal separation is favourable, with the trailing kite operating below the leading kite, thus removing the potential for it to operate in the wake turbulence of the latter. This paper presents relevant, applicable data which can be used for predicting the performance, and potentially optimising future power kite design. Keywords: Power kites; Computational Fluid Dynamics (CFD); Wind energy; Renewable power generation; Surface roughness; Aerofoil; Kite optimisation; Billows; Drag coefficient; Lift coefficient.