Temperature evolution and heat transfer during the release of CO2 from a large-scale pipeline. (July 2018)

• Record Type: Journal Article
• Authors: Cao, Qi; Yan, Xingqing; Guo, Xiaolu; Zhu, Hailong; Liu, Shaorong; Yu, Jiangliang
• Is Part Of: International journal of greenhouse gas control. Volume 74(2018)
• Page Start: 40
• Page End: 48
• Publication Date: 2018-07
• Subjects: Large-scale CO2 pipeline -- Gas phase CO2 release -- Dense phase CO2 release -- Heat transfer process; Greenhouse gases -- Environmental aspects -- Periodicals; Air -- Purification -- Technological innovations -- Periodicals; Gaz à effet de serre -- Périodiques; Gaz à effet de serre -- Réduction -- Périodiques; Air -- Purification -- Technological innovations; Greenhouse gases -- Environmental aspects; Periodicals; 363.73874605
• DOI: 10.1016/j.ijggc.2018.04.015
• Languages: English
• ISSNs: 1750-5836

Abstract

Highlights: A 257 m long and 233 mm inner diameter pipeline was built to investigate the CO2 release process. The experiments of dense phase and gas phase CO2 release were carried out. Obtained the temperature evolutions of CO2 released from the large-scale pipeline. The difference between pipeline wall temperature and CO2 temperature was compared. The overall heat transfer tendency was discussed during the CO2 release. Abstract: Carbon Capture and Storage (CCS) is one of the most effective methods to cope with global warming. Pipeline transportation is an important part of the CCS chain and increasing attention should be paid to pipeline security to prevent catastrophic release of CO2 . To perform industrial scale pipeline safety studies, a pipeline with a length of 258 m and an inner diameter of 233 mm was constructed to examined the CO2 release process. Several high frequency pressure transducers and several thermocouples were installed on the pipeline to measure the pressure and temperature evolution, respectively, of the CO2 release. The CO2 was released from three different orifices (15 mm, 50 mm, and Full-Bore Rupture). The study presents the temperature evolution during the gas phase and dense phase CO2 release processes. Based on the temperature data, the Nusselt Number was calculated. The heat transfer process is also discussed.