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A new model based on adiabatic flame temperature for evaluation of the upper flammable limit of alkane-air-CO2 mixtures
Authors
Gequn Shu (3599192)
Hua Tian (220297)
+4Β more
Mingqiang Wu (7122596)
Rui Chen (1257861)
Xueying Wang (281924)
Yue Wang (65477)
Publication date
17 October 2017
Publisher
Doi
Abstract
Β© 2017 Elsevier B.V. For security issue of alkane used in Organic Rankine Cycle, a new model to evaluate the upper flammability limits for mixtures of alkanes, carbon dioxide and air has been proposed in present study. The linear relationship was found at upper flammability limits between molar fraction of diluent in alkane-CO 2 mixture and calculated adiabatic flame temperature. The prediction ability of the variable calculated adiabatic flame temperature model that incorporated the linear relationship above is greatly better than the models that adopted the fixed calculated adiabatic flame temperature at upper flammability limit. The average relative differences between results predicted by the new model and observed values are less than 3.51% for upper flammability limit evaluation. In order to enhance persuasion of the new model, the observed values of n-butane-CO 2 and isopentane-CO 2 mixtures measured in this study were used to confirm the validity of the new model. The predicted results indicated that the new model possesses the capacity of practical application and can adequately provide safe non-flammable ranges for alkanes diluted with carbon dioxide
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oai:figshare.com:article/92258...
Last time updated on 26/03/2020
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info:doi/10.1016%2Fj.jhazmat.2...
Last time updated on 05/09/2020