Preliminary Study on Fault Detection in Gas Coolers for Transcritical CO2 Refrigeration Systems

Milad Morid Zadeh*, Roozbeh Izadi-Zamanabadi, Mohammad Hossein Ramezani, Paride Gullo

*Corresponding author for this work

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

Abstract

Carbon dioxide is acknowledged to be the refrigerant for next generation supermarket refrigeration systems. However, a notable dearth of research exists in fault detection and diagnosis applied to transcritical CO2 supermarket refrigeration systems. This paper addresses this knowledge gap by conducting a preliminary study on the impact of fouling in the gas cooler air side on the system performance over 7 hours of a typical summer day in Washington DC. The investigation was based on a dynamic model of a transcritical CO2 supermarket refrigeration system and 3 fouling scenarios, i.e., mild, moderate, and severe scenario. A grey-box model was developed to estimate the UA-value of the gas cooler. The findings demonstrated that this approach can be effectively utilized to detect fouling scenarios. Moreover, it was observed that the fouling results in increase in the electricity bill by 7.9 % and by 40.5 % in the moderate and severe scenario, respectively.
Original languageEnglish
Title of host publication16th IIR-Gustav Lorentzen Conference on Natural Refrigerants : Natural Refrigerants for the Present and the Future
PublisherInternational Institute of Refrigeration
Publication date14. Aug 2024
Publication statusPublished - 14. Aug 2024
Event 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants - College Park, United States
Duration: 11. Aug 202414. Aug 2024
https://ceee.umd.edu/gl2024

Conference

Conference 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants
Country/TerritoryUnited States
CityCollege Park
Period11/08/202414/08/2024
Internet address

Fingerprint

Dive into the research topics of 'Preliminary Study on Fault Detection in Gas Coolers for Transcritical CO2 Refrigeration Systems'. Together they form a unique fingerprint.

Cite this