Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios
Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical invest...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Anandalakshmi, R. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013transfer abstract |
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| Schlagwörter: |
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| Umfang: |
21 |
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| Übergeordnetes Werk: |
Enthalten in: Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection - Basheer, Sabeel M. ELSEVIER, 2019, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:64 ; year:2013 ; pages:224-244 ; extent:21 |
| Links: |
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| DOI / URN: |
10.1016/j.ijheatmasstransfer.2013.03.067 |
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ELV017114004 |
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| 264 | 1 | |c 2013transfer abstract | |
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| 520 | |a Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. | ||
| 520 | |a Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. | ||
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| 650 | 7 | |a Entropy |2 Elsevier | |
| 650 | 7 | |a Thermodynamic process |2 Elsevier | |
| 650 | 7 | |a Transport processes |2 Elsevier | |
| 700 | 1 | |a Basak, Tanmay |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Basheer, Sabeel M. ELSEVIER |t Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection |d 2019 |g Amsterdam [u.a.] |w (DE-627)ELV002904500 |
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10.1016/j.ijheatmasstransfer.2013.03.067 doi GBVA2013020000029.pica (DE-627)ELV017114004 (ELSEVIER)S0017-9310(13)00285-8 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Anandalakshmi, R. verfasserin aut Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios 2013transfer abstract 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Porous media Elsevier Energy Elsevier Thermal aspect ratio Elsevier Thermal mixing Elsevier Entropy Elsevier Thermodynamic process Elsevier Transport processes Elsevier Basak, Tanmay oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:64 year:2013 pages:224-244 extent:21 https://doi.org/10.1016/j.ijheatmasstransfer.2013.03.067 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 64 2013 224-244 21 045F 620 |
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10.1016/j.ijheatmasstransfer.2013.03.067 doi GBVA2013020000029.pica (DE-627)ELV017114004 (ELSEVIER)S0017-9310(13)00285-8 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Anandalakshmi, R. verfasserin aut Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios 2013transfer abstract 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Porous media Elsevier Energy Elsevier Thermal aspect ratio Elsevier Thermal mixing Elsevier Entropy Elsevier Thermodynamic process Elsevier Transport processes Elsevier Basak, Tanmay oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:64 year:2013 pages:224-244 extent:21 https://doi.org/10.1016/j.ijheatmasstransfer.2013.03.067 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 64 2013 224-244 21 045F 620 |
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10.1016/j.ijheatmasstransfer.2013.03.067 doi GBVA2013020000029.pica (DE-627)ELV017114004 (ELSEVIER)S0017-9310(13)00285-8 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Anandalakshmi, R. verfasserin aut Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios 2013transfer abstract 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Porous media Elsevier Energy Elsevier Thermal aspect ratio Elsevier Thermal mixing Elsevier Entropy Elsevier Thermodynamic process Elsevier Transport processes Elsevier Basak, Tanmay oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:64 year:2013 pages:224-244 extent:21 https://doi.org/10.1016/j.ijheatmasstransfer.2013.03.067 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 64 2013 224-244 21 045F 620 |
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10.1016/j.ijheatmasstransfer.2013.03.067 doi GBVA2013020000029.pica (DE-627)ELV017114004 (ELSEVIER)S0017-9310(13)00285-8 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Anandalakshmi, R. verfasserin aut Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios 2013transfer abstract 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Porous media Elsevier Energy Elsevier Thermal aspect ratio Elsevier Thermal mixing Elsevier Entropy Elsevier Thermodynamic process Elsevier Transport processes Elsevier Basak, Tanmay oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:64 year:2013 pages:224-244 extent:21 https://doi.org/10.1016/j.ijheatmasstransfer.2013.03.067 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 64 2013 224-244 21 045F 620 |
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10.1016/j.ijheatmasstransfer.2013.03.067 doi GBVA2013020000029.pica (DE-627)ELV017114004 (ELSEVIER)S0017-9310(13)00285-8 DE-627 ger DE-627 rakwb eng 620 620 DE-600 600 VZ 51.79 bkl 51.45 bkl Anandalakshmi, R. verfasserin aut Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios 2013transfer abstract 21 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. Porous media Elsevier Energy Elsevier Thermal aspect ratio Elsevier Thermal mixing Elsevier Entropy Elsevier Thermodynamic process Elsevier Transport processes Elsevier Basak, Tanmay oth Enthalten in Elsevier Basheer, Sabeel M. ELSEVIER Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection 2019 Amsterdam [u.a.] (DE-627)ELV002904500 volume:64 year:2013 pages:224-244 extent:21 https://doi.org/10.1016/j.ijheatmasstransfer.2013.03.067 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.79 Sonstige Werkstoffe VZ 51.45 Werkstoffe mit besonderen Eigenschaften VZ AR 64 2013 224-244 21 045F 620 |
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Enthalten in Analytical and computational investigation on host-guest interaction of cyclohexyl based thiosemicarbazones: Construction of molecular logic gates using multi-ion detection Amsterdam [u.a.] volume:64 year:2013 pages:224-244 extent:21 |
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analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios |
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Analysis of natural convection via entropy generation approach in porous rhombic enclosures for various thermal aspect ratios |
| abstract |
Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. |
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Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. |
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Analysis of ‘entropy generation’ is an important strategy to build, optimize and operate the heat exchange systems within their maximum operating efficiency. Porous rhombic cavities with various inclination angles, φ and various thermal aspect ratios, A, have been considered for the numerical investigation of thermal processing of various fluids (Prandtl number, Pr =0.015 and 1000) in the range of Darcy number (Da =10−3–10) due to its extensive energy related applications. The effect of A and φ for various governing parameters during convection are discussed in detail via heat transfer irreversibility (S θ ) and fluid friction irreversibility, S ψ . At lower A, the entropy generation in the cavity is dominated by both S θ and S ψ for all φs irrespective of Da and Pr. As A increases, S θ as well as S ψ decreases for all φs which in turn decreases S total with A irrespective of Da and Pr. The total entropy generation (S total ) is found to be lower for φ =30° and higher for φ =75° for all Pr and Da. Analysis of variations of Be av with A for higher Da (Da =10) indicates that, entropy generation is highly fluid friction dominant irrespective of φ and A. Lesser entropy generation (S total ) with larger heat transfer rate ( Nu b ¯ ) and reasonable heat transfer rate ( Nu b ¯ ) occurs for Pr =0.015 and Pr =1000, respectively at φ =30° cavities with all A irrespective of Da. Current work attempts to analyze energy efficient thermal convection strategies and role of thermal aspect ratio within porous rhombic enclosures based on entropy generation minimization vs heat transfer rates for various fluids. |
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