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Methane Bubble Evolution and Dissolution in Freshwater Lake
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SYSNO ASEP 0451102 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Methane Bubble Evolution and Dissolution in Freshwater Lake Author(s) Stanovský, Petr (UCHP-M) RID, ORCID, SAI
Kordač, M. (CZ)
Štiková, L. (CZ)
Orvalho, Sandra (UCHP-M) RID, ORCID, SAISource Title Book of Abstracts. - Ozarow Mazowiecki : Nobell Compressing sp. z o.o, 2015 / Kosinsky K. ; Urbanczyk M. ; Žerko S. - ISBN N. Number of pages 1 s. Publication form Online - E Action International Workshop on Bubble and Drop Interfaces 2015 /6./ Event date 06.07.2015-10.07.2015 VEvent location Potsdam Country DE - Germany Event type EUR Language eng - English Country DE - Germany Keywords bubble ebullition ; mass transfer ; freshwater lakes Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GAP504/12/1186 GA ČR - Czech Science Foundation (CSF) Institutional support UCHP-M - RVO:67985858 Annotation Gasses produced by sediments in freshwater lakes influence the ecosystem of the lakes and amount of methane emitted through an ebullition is considered as significant source in global carbon cycle. A model is formulated to allow assessment of methane release via ebullition based on easily accessible data from hydroacoustic survey, which provide information about bubble size distribution and their number density along the lake. Mass transfer of methane, carbon dioxide, oxygen and nitrogen is taken into account as well as their vertical concentration profiles and temperature distribution through a water column. Review of available models for bubble drag coefficient and mass transfer coefficients for single bubble experiments was made and the best available was integrated into the model presented. It is remarkable, that naturally present surface active substances does play only minor role in mass transfer of gases within water body due to fast volume expansion of bubbles. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2016
Number of the records: 1