Thermal and power consumption model of an electrically refrigerated trailer

verfasst von

D. Bank, J. P. Kobler, T. Zeller, P. Cujic, T. Seel, S. F.G. Ehlers

Abstract

In the face of escalating climate change concerns, there is a need for reducing CO₂ emissions in all economic sectors. The transportation sector, particularly freight transportation via trucks and especially refrigerated trailers, is a substantial contributor to these emissions. An energy management system can be used to optimize the energy consumption of electrified refrigerated trailers, for which a model of an electrically refrigerated trailer is needed. This paper aims to develop and validate a thermal model of an electrified trailer. The model is created using over 40 h of test drives across a broad spectrum of internal temperatures, which range between -23 °C and +18 °C, as well as ambient temperatures, which range between 1 °C and 36 °C. The data was collected from test drives conducted in Spain, Sweden, and Germany under varying temperature set-points and loads, ensuring the model's accuracy across diverse operating conditions. Additionally, for the first time, the Trailer Refrigeration Unit's (TRU) electric consumption is modeled in detail over complete drive cycles. The paper also outlines a method for identifying the parameters of the trailer and goods across all runs. This comprehensive approach ensures a robust and accurate model, with an RMSE of below 0.7 °C for the open-loop temperature modeling and a total error of below 1.5% for the energy consumption in a closed-loop simulation.

Organisationseinheit(en)

Institut für Mechatronische Systeme

Externe Organisation(en)

BPW Bergische Achsen KG
Karlsruher Institut für Technologie (KIT)

Typ

Artikel

Journal

International Journal of Refrigeration

Band

176

Seiten

425-436

Anzahl der Seiten

12

ISSN

0140-7007

Publikationsdatum

14.05.2025

Publikationsstatus

Elektronisch veröffentlicht (E-Pub)

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Bauwesen, Maschinenbau

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie, SDG 13 – Klimaschutzmaßnahmen

Elektronische Version(en)

https://doi.org/10.1016/j.ijrefrig.2025.04.026 (Zugang: Geschlossen)