Experimental and numerical investigation of a PCM module for ventilation systems

Viktor Ljungdahl, Karim Elabshihy, Esther Kieseritzky, Felix Pawelz, Muhyiddine Jradi, Jonathan Dallaire, Christian Veje

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In the last decades, there is an increasing demand for innovative, efficient, and environmentally friendly cooling technologies as alternatives to the conventional compressor-based technologies. In this study, a theoretical and experimental investigation of a Phase Change Material(PCM) based module for a ventilation system is presented. A latent thermal energy storage unit with PCM is used as an add-on-module to a ventilation system to provide additional cooling capacity. The ventilation system is used to direct cold air from the outside through the PCM module to solidify the PCM during night time. During day time, the room supply air can be cooled down by passing it through the PCM module. An actual application employing the considered PCM module is investigated, where PCM is encapsulated in rectangular containers, each with 2kg of PCM. The PCM containers are placed inside the supply air stream of a ventilation unit. A one-dimensional numerical model is developed to predict the dynamic performance of the PCM-driven ventilation system. In addition, the model is calibrated and validated with data collected from an experimental application. It was shown that the developed model predicts well the system performance with an average deviation of less than 2% for the PCM temperature and less than 4% for the air temperature.

Original languageEnglish
Title of host publication33rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2020)
EditorsRyohei Yokoyama, Yoshiharu Amano
Volume1
PublisherECOS
Publication date2020
Pages912-922
ISBN (Print)978-1-7138-1406-1
Publication statusPublished - 2020
Event33rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2020 - Osaka, Japan
Duration: 29. Jun 20203. Jul 2020

Conference

Conference33rd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2020
Country/TerritoryJapan
CityOsaka
Period29/06/202003/07/2020
SponsorAzbil Corporation, Kansai Electric Power Co., Inc., Mitsubishi Heavy Industries Thermal Systems, Ltd., Yanmar Holdings Co., Ltd.

Keywords

  • Latent thermal energy storage
  • PCM
  • Testing
  • Thermal comfort
  • Ventilation

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