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 |
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. 441450 |
doi |
https://doi.org/10.52842/conf.caadria.2023.2.441
|
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 faade 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 |
|
full text |
file.pdf (1,174,579 bytes) |
references |
Content-type: text/plain
|
Baggs, S., Baggs, D. W., &Amp; Baggs, J. C. (1985)
Australian Earth-covered Buildings
, New South Wales University Press
|
|
|
|
Bansal, K., Chowdhury, S., &Amp; Gopal, M. R. (2008)
Development of Cltd Values for Buildings Located in Kolkata, India
, Applied Thermal Engineering, 28(1), 1127-1137. Available at: https://doi.org/1.116/j.applthermaleng.27.8.
|
|
|
|
Garay, R., Uriarte, A., &Amp; Apraiz, I. (2014)
Performance Assessment of Thermal Bridge Elements Into a Full Scale Experimental Study of a Building Faade
, Energy and Buildings, 85, 579-591. Available at: https://doi.org/1.116/j.enbuild.214.9.24
|
|
|
|
Hanafi, M. H., Umar, M. U., Razak, A. A., Rashid, Z. Z., Noriman, N. Z., &Amp; Dahham, O. S. (2018)
An Introduction to Thermal Bridge Assessment and Mould Risk At Dampness Surface for Heritage Building
, IOP Conference Series: Materials Science and Engineering, 454. Available at: https://doi.org/1.188/1757-899x/454/1/12185
|
|
|
|
Huang, Y., El Mankibi, M., & Cantin, R. (2022)
Identification of Dynamic U-values for Supply-air Double Windows Based on Experiments
, CLIMA 222 Conference. Available at: https://doi.org/https://doi.org/1.34641/clima.2
|
|
|
|
Kim, H., &Amp; Yeo, M. (2020)
Thermal Bridge Modeling and a Dynamic Analysis Method Using the Analogy of a Steady-state Thermal Bridge Analysis and System Identification Process for Building Energy Simulation: Methodology and Validation
, Energies, 13(17), 4422. Available at: https://doi.org/1.339/en13174422
|
|
|
|
Klein, S. A., Beckman, W. A., &Amp; Cooper, P. I. (1978)
Trnsys: a Transient Simulation Program
, University of Wisconsin
|
|
|
|
Kossecka, E., &Amp; Kosny, J. (1997)
Equivalent Wall As a Dynamic Model of a Complex Thermal Structure
, Journal of Thermal Insulation and Building Envelopes, 2(3), 249-268. Available at: https://doi.org/1.1177/197196397236
|
|
|
|
Quinten, J., &Amp; Feldheim, V. (2016)
Dynamic Modelling of Multidimensional Thermal Bridges in Building Envelopes: Review of Existing Methods, Application and New Mixed Method
, Energy and Buildings, 11, 284-293. Available at: https://doi.org/1.116/j.enbuild.215.11.3
|
|
|
|
Quinten, J., &Amp; Feldheim, V. (2019)
Mixed Equivalent Wall Method for Dynamic Modelling of Thermal Bridges: Application to 2-d Details of Building Envelope
, Energy and Buildings, 183, 697-712. Available at: https://doi.org/1.116/j.enbuild.218.11.4
|
|
|
|
Sah, S. K., Krishnan, M., &Amp; Rajasekar, E. (2022)
Correlating Time Lag Characteristics of Building Envelop Materials on Peak Energy Demand During Indoor Climate Control
, SSRN Electronic Journal. Available at: https://doi.org/1.2139/ssrn.4184579
|
|
|
|
last changed |
2023/06/15 23:14 |
|