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CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	caadria2023_334
id	caadria2023_334
authors	Cahyadi, Muhammad Rafif, Alkadri, Miktha Farid and De Luca, Francesco
year	2023
title	Dynamic Calculations of Thermal Bridges in Curtain Wall and Its Effects on Cooling Loads and Thermal Delay
doi	https://doi.org/10.52842/conf.caadria.2023.2.441
source	Immanuel Koh, Dagmar Reinhardt, Mohammed Makki, Mona Khakhar, Nic Bao (eds.), HUMAN-CENTRIC - Proceedings of the 28th CAADRIA Conference, Ahmedabad, 18-24 March 2023, pp. 441–450
summary	Thermal Bridge is a multidimensional heat flow that has been discussed among architects and engineers. Integrating thermal bridges into building energy simulation (BES) has been challenging because they are often simulated at steady-state conditions without including their dynamic behaviour, such as thermal delay or time lag. Most BES programs tend to simplify this part, so they only calculate the thermal bridge in the steady state, which may lead to miscalculation. This paper proposes a novel method to calculate dynamic thermal bridges by integrating the thermal bridge and the energy simulation part. The thermal bridge simulation is conducted under transient conditions at a certain timestep where the boundary conditions are obtained from field observations. The results are then used as input in the BES program to calculate the cooling load's end-use intensity (EUI) and thermal delay. This study enables architects not only to identify potential thermal bridges in the existing building façade but also to support material and geometrical explorations during the conceptual design stage.
keywords	Thermal Bridges, Dynamic calculation, Thermal Delay, Cooling Load
series	CAADRIA
email
last changed	2023/06/15 23:14

_id	ecaade2023_144
id	ecaade2023_144
authors	Irsyad, Naufal Andi, Alkadri, Miktha Farid, De Luca, Francesco, Arif, Muhammad and Heinzelmann, Florian
year	2023
title	Tropical Responsive Envelopes for Urban Heat Island mitigation in tropical countries
doi	https://doi.org/10.52842/conf.ecaade.2023.2.249
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 249–258
summary	Since tropical countries present wet and dry seasons all year round, the objective of solar envelopes significantly shifts and aims to minimize the penetration of direct sun access to the buildings, due to high temperatures. As a consequence, the air conditioner (AC) frequently becomes a short-term solution to mitigate a building’s temperature, which unfortunately contributes to an annual increase in energy consumption. Accordingly, shading conditions become considerably relevant for urban form generation in tropical contexts, especially to reduce the UHI effect for tropical high-rise building areas. The concept of tropical responsive envelopes is then proposed not only to create shading for adjacent buildings but also to perform self-building protection that refers to self-shading envelopes. This concept specifically deals with solar-radiation reduction in order to achieve appropriate daylight in both the proposed building and the surrounding context. To do so, a solar protection plane and ray tracing analysis are performed based on shading performance criteria. In parallel, solar radiation simulation is applied to identify potential solar collectors on the building surfaces. This provides architects with a comprehensive method of tackling passive solar design strategy for urban equatorial climates
keywords	Solar Envelopes, Shading Envelopes, Self-shading Envelopes, Tropical Responsive Envelopes
series	eCAADe
email
last changed	2023/12/10 10:49

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