Physics-Based Dynamic Modeling of Solar-Powered Off-Grid Cold Storage for Perishables Using Modelica: A Case Study – Xingalool, Somalia

Authors

  • Bahareh Bakhsh Zahmatkesh Department of Thermal and Fluid Engineering, Faculty ofEngineering Technology, University of Twente
  • Mina Shahi Department of Thermal and Fluid Engineering, Faculty ofEngineering Technology, University of Twente
  • Amirhoushang Mahmoudi Department of Thermal and Fluid Engineering, Faculty ofEngineering Technology, University of Twente

DOI:

https://doi.org/10.3384/ecp218939

Keywords:

Modelica, Off-Grid, Cold Storage, Digital Twin, Agriculture

Abstract

This paper presents a dynamic, physics-based Modelica modelfor simulating solar-powered, off-grid cold storage systemsused to preserve perishables. A preliminary componentlibrary, developed using the Modelica Standard Library,supports modular modeling of PV-powered chillers, thermalloads, and latent thermal energy storage (LTES), whichmaintains cooling during non-solar hours. The library isapplied to a 200 m³ cold room in Xingalool, Somalia,designed to stay at 5 °C. A case study simulating 500 kg ofcrop loading at 8:00 and unloading at 17:00 demonstratesthe system’s dynamic behavior under realistic solar andambient conditions.** This paper is intended to be presented as a poster.

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Published

2025-10-24

Issue

Proceedings of the 16th International Modelica&FMI Conference, September 8 – 10, 2025, Lucerne University of Applied Sciences and Arts (HSLU)

Section

Papers

License

Copyright (c) 2025 Bahareh Bakhsh Zahmatkesh, Mina Shahi, Amirhoushang Mahmoudi

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.