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MULTI-ZONAL TEMPERATURE CONTROL OF TRANSIENT THERMAL LOADS IN AIRCRAFT CABIN AIRFLOW

Dehne, Tobias and Bosbach, Johannes and Lechner, Tobias and Hesselbach, Florian (2018) MULTI-ZONAL TEMPERATURE CONTROL OF TRANSIENT THERMAL LOADS IN AIRCRAFT CABIN AIRFLOW. In: Roomvent & Ventilation Konferenz 2018, pp. 785-790. SiY Indoor Air Information Oy. Roomventilation 2018, 2.-5. Juni. 2018, Espoo, Finland. ISBN 978-952-5236-48-4

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Official URL: https://roomventilation2018.org/proceedings/

Abstract

We developed, implemented and investigated a novel system for multi-zonal temperature control of transient thermal loads in mixing ventilation of passenger aircraft cabins using the Dornier 728 aircraft cabin test facility of the German Aerospace Center in Gottingen as test environment. The system comprises lightweight, PID-controlled heating tubes installed in front of each air inlet with a network of reference sensors and allows for temperature zones as small as a single seat row. We considered seven different heat load scenarios using 73 thermal passenger dummies and a fast switchable local heat source to simulate the heat release of the real passengers. By analysing the temperature signals of 340 resistance temperature detectors, we studied the propagation of locally released thermal loads as well as the impact of locally varied inflow temperatures. Further, we developed and investigated different sensor and controller network concepts to identify and address missing, additional and transient sources of heat. Averaged over all load scenarios, we found that our baseline case with spatially homogeneous inflow-temperatures yielded 14 % of seats with temperature deviations larger than 0.5°C from the column mean. By switching to multi-zonal control, we could reduce this number by almost one order of magnitude to 1.6 %.

Item URL in elib:https://elib.dlr.de/119150/
Document Type:Conference or Workshop Item (Other)
Title:MULTI-ZONAL TEMPERATURE CONTROL OF TRANSIENT THERMAL LOADS IN AIRCRAFT CABIN AIRFLOW
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dehne, TobiasTobias.Dehne (at) dlr.deUNSPECIFIED
Bosbach, JohannesJohannes.Bosbach (at) dlr.dehttps://orcid.org/0000-0002-1531-127X
Lechner, TobiasDiehl Aircabin GmbH, Research & Technology, Am Flugplatz, D-88471 LaupheimUNSPECIFIED
Hesselbach, FlorianDiehl Aircabin GmbH, Research & Technology, Am Flugplatz, D-88471 LaupheimUNSPECIFIED
Date:June 2018
Journal or Publication Title:Roomvent & Ventilation Konferenz 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 785-790
Editors:
EditorsEmail
Kosonen, RistoEditor
Ahola, MerviEditor
Narvanne, JarkkoEditor
Publisher:SiY Indoor Air Information Oy
ISBN:978-952-5236-48-4
Status:Published
Keywords:Multi-zonal temperature control, aircraft cabin airflow, mixing ventilation, environmental control, heat propagation
Event Title:Roomventilation 2018
Event Location:Espoo, Finland
Event Type:international Conference
Event Dates:2.-5. Juni. 2018
Organizer:The main organizer Finnish Society of Indoor Air Quality and Climate (FiSIAQ) and the co-organizer Aalto University
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Fluid Systems, GO
Deposited By: Dehne, Tobias
Deposited On:11 Jun 2018 13:39
Last Modified:11 Jun 2018 13:39

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