Reconstruction of the indoor air temperature distribution using acoustic travel-time tomography
- Acoustic travel-time tomography (ATOM) is being increasingly considered recently as a remote sensing methodology to determine the indoor air temperatures distribution. It employs the relationship between the sound velocities along sound-paths and their related travel-times through measured room-impulse-response (RIR). Thus, the precise travel-time estimation is of critical importance which can beAcoustic travel-time tomography (ATOM) is being increasingly considered recently as a remote sensing methodology to determine the indoor air temperatures distribution. It employs the relationship between the sound velocities along sound-paths and their related travel-times through measured room-impulse-response (RIR). Thus, the precise travel-time estimation is of critical importance which can be performed by applying an analysis time-window method. In this study, multiple analysis time-windows with different lengths are proposed to overcome the challenge of accurate detection of the travel-times at RIR. Hence, the ATOM-temperatures distribution has been measured at the climate chamber lab of the Bauhaus-University Weimar. As a benchmark, the temperatures of NTC thermistors are compared to the reconstructed temperatures derived from the ATOM technique illustrating this technique can be a reliable substitute for traditional thermal sensors. The numerical results indicate that the selection of an appropriate analysis time-window significantly enhances the accuracy of the reconstructed temperatures distribution.…
Document Type: | Conference Proceeding |
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Author: | Najmeh Sadat DokhanchiORCiD |
DOI (Cite-Link): | https://doi.org/10.25643/bauhaus-universitaet.4659Cite-Link |
URN (Cite-Link): | https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20220622-46593Cite-Link |
Editor: | Jörg Arnold |
Translator: | Albert Vogel |
Contributor(s): | Conrad Völker |
Language: | English |
Date of Publication (online): | 2021/02/18 |
Year of first Publication: | 2021 |
Release Date: | 2022/06/22 |
Publishing Institution: | Bauhaus-Universität Weimar |
Institutes and partner institutions: | Fakultät Bauingenieurwesen / Professur Bauphysik |
Tag: | Akustische Laufzeit-Tomographie Acoustic Travel-Time Tomography |
GND Keyword: | Bauphysik; Bauklimatik |
Dewey Decimal Classification: | 500 Naturwissenschaften und Mathematik / 530 Physik / 534 Schall und verwandte Schwingungen |
BKL-Classification: | 56 Bauwesen / 56.55 Bauphysik, Bautenschutz |
Licence (German): | Creative Commons 4.0 - Namensnennung-Nicht kommerziell-Keine Bearbeitung (CC BY-NC-ND 4.0) |