Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System

Within the Clean Sky 2 regional project, a hybrid environmental control system has been conceived that combines the classical bleed air approach with a vapor cycle cooling in the recirculation air. To protect partners’ IP, a functional mock-up (FMU) model of the hybrid ECS was provided describing th...

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Main Authors: Arnav Pathak, Victor Norrefeldt
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Engineering Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4591/90/1/80
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author Arnav Pathak
Victor Norrefeldt
author_facet Arnav Pathak
Victor Norrefeldt
author_sort Arnav Pathak
collection DOAJ
description Within the Clean Sky 2 regional project, a hybrid environmental control system has been conceived that combines the classical bleed air approach with a vapor cycle cooling in the recirculation air. To protect partners’ IP, a functional mock-up (FMU) model of the hybrid ECS was provided describing the system behavior. This model was interfaced with a zonal model of a 100-passenger regional aircraft cabin to investigate comfort and air quality conditions within the cabin. The interfacing reveals that some optimization of the control algorithm is possible for the hybrid ECS, while some operational points already perform as intended. Hence, the coupled simulation approach, at an early design stage, already shows the strengths and weaknesses of the system conception. Recommendations from the simulation study can subsequently be incorporated into the design before a physical demonstrator is produced.
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spelling doaj-art-8ee6b7bdd20743689513039e4201d7fe2025-08-20T02:21:06ZengMDPI AGEngineering Proceedings2673-45912025-03-019018010.3390/engproc2025090080Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle SystemArnav Pathak0Victor Norrefeldt1Fraunhofer Institute for Building Physics IBP, Fraunhoferstr. 10, 83626 Valley, GermanyFraunhofer Institute for Building Physics IBP, Fraunhoferstr. 10, 83626 Valley, GermanyWithin the Clean Sky 2 regional project, a hybrid environmental control system has been conceived that combines the classical bleed air approach with a vapor cycle cooling in the recirculation air. To protect partners’ IP, a functional mock-up (FMU) model of the hybrid ECS was provided describing the system behavior. This model was interfaced with a zonal model of a 100-passenger regional aircraft cabin to investigate comfort and air quality conditions within the cabin. The interfacing reveals that some optimization of the control algorithm is possible for the hybrid ECS, while some operational points already perform as intended. Hence, the coupled simulation approach, at an early design stage, already shows the strengths and weaknesses of the system conception. Recommendations from the simulation study can subsequently be incorporated into the design before a physical demonstrator is produced.https://www.mdpi.com/2673-4591/90/1/80virtual demonstrationhybrid ECSdigital twinzonal modellingClean Sky 2
spellingShingle Arnav Pathak
Victor Norrefeldt
Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System
Engineering Proceedings
virtual demonstration
hybrid ECS
digital twin
zonal modelling
Clean Sky 2
title Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System
title_full Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System
title_fullStr Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System
title_full_unstemmed Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System
title_short Simulation-Based Assessment of the Control of a Hybrid ECS Including a Vapor Cycle System
title_sort simulation based assessment of the control of a hybrid ecs including a vapor cycle system
topic virtual demonstration
hybrid ECS
digital twin
zonal modelling
Clean Sky 2
url https://www.mdpi.com/2673-4591/90/1/80
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