On the Sublimation of Dry-Ice: Experimental Investigation and Thermal Modelling of Low-Temperatures on a Sandy Soil

Matteo Vitali (), Giovanni Biancini, Barbara Marchetti and Francesco Corvaro
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Matteo Vitali: Dipartimento di Ingegneria Industriale e Scienze Matematiche (DIISM), Università Politecnica delle Marche, Via Brecce Bianche 12, 60131 Ancona, AN, Italy
Giovanni Biancini: Facoltà di Ingegneria, Università degli Studi E-Campus, Via Isimbardi 10, 22060 Novedrate, CO, Italy
Barbara Marchetti: Facoltà di Ingegneria, Università degli Studi E-Campus, Via Isimbardi 10, 22060 Novedrate, CO, Italy
Francesco Corvaro: Dipartimento di Ingegneria Industriale e Scienze Matematiche (DIISM), Università Politecnica delle Marche, Via Brecce Bianche 12, 60131 Ancona, AN, Italy

Energies, 2023, vol. 16, issue 2, 1-13

Abstract: In the last decade, growing awareness about CO 2 emissions is supporting the authorities in a more sustainable society. The proposed solutions embrace different topics, such as renewable energy implementation, lower waste production, and carbon capture and storage technologies (CCS). The latter is based upon the best available knowledge about the thermophysical properties of CO 2 , which are not always satisfactory for its complete characterization. In this work, it is investigated the interaction of the CO 2 in solid phase (dry-ice) with sandy soil, a phenomenon that can potentially occur following pipeline ruptures. An experimental setup and a numerical model have been developed to measure and validate the temperature profiles beneath the dry-ice bank at steady-state conditions. The model has been validated with the experimental data by defining a suitable range of the thermal conductivity at the solid phase (0.25–0.30 W m −1 K −1 ) that led to the best match (deviation of 7.81%). Finally, the overall heat transfer coefficient (85.56–86.35 W m −2 K −1 ) has been numerically calculated.

Keywords: dry-ice; carbon-dioxide; safety; experimental; thermal analysis; heat-transfer; low temperature; soil; underground (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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