Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity
In this paper, we have studied heat transfer process in a continuously moving fin whose thermal conductivity, heat transfer coefficient varies with temperature and surface emissivity varies with temperature and wavelength. Heat transfer coefficient is assumed to be a power law type form where expone...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2014-12-01
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| Series: | Propulsion and Power Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212540X14000716 |
| _version_ | 1797723214243168256 |
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| author | Surjan Singh Dinesh Kumar K.N. Rai |
| author_facet | Surjan Singh Dinesh Kumar K.N. Rai |
| author_sort | Surjan Singh |
| collection | DOAJ |
| description | In this paper, we have studied heat transfer process in a continuously moving fin whose thermal conductivity, heat transfer coefficient varies with temperature and surface emissivity varies with temperature and wavelength. Heat transfer coefficient is assumed to be a power law type form where exponent represent different types of convection, nucleate boiling, condensation, radiation etc. The thermal conductivity is assumed to be a linear and quadratic function of temperature. Exact solution obtained in case of temperature independent thermal conductivity and in absence of radiation conduction parameter is compared with those obtained by present method and is same up to ten decimal places. The whole analysis is presented in dimensionless form and the effect of variability of several parameters namely convection-conduction, radiation-conduction, thermal conductivity, emissivity, convection sink temperature, radiation sink temperature and exponent on the temperature distribution in fin and surface heat loss are studied and discussed in detail. |
| first_indexed | 2024-03-12T09:58:42Z |
| format | Article |
| id | doaj.art-baa9b24469fd4e9e8e7ccf62c9be7648 |
| institution | Directory Open Access Journal |
| issn | 2212-540X |
| language | English |
| last_indexed | 2024-03-12T09:58:42Z |
| publishDate | 2014-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Propulsion and Power Research |
| spelling | doaj.art-baa9b24469fd4e9e8e7ccf62c9be76482023-09-02T11:56:57ZengKeAi Communications Co., Ltd.Propulsion and Power Research2212-540X2014-12-013420722110.1016/j.jppr.2014.11.003Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivitySurjan Singh0Dinesh Kumar1K.N. Rai2Research Scholar DST-Centre for Interdisciplinary Mathematical Sciences, Banaras Hindu University, Varanasi 221005, Utter Pradesh, IndiaResearch Scholar DST-Centre for Interdisciplinary Mathematical Sciences, Banaras Hindu University, Varanasi 221005, Utter Pradesh, IndiaDepartment of Mathematical Sciences, IIT, Banaras Hindu University, Varanasi, IndiaIn this paper, we have studied heat transfer process in a continuously moving fin whose thermal conductivity, heat transfer coefficient varies with temperature and surface emissivity varies with temperature and wavelength. Heat transfer coefficient is assumed to be a power law type form where exponent represent different types of convection, nucleate boiling, condensation, radiation etc. The thermal conductivity is assumed to be a linear and quadratic function of temperature. Exact solution obtained in case of temperature independent thermal conductivity and in absence of radiation conduction parameter is compared with those obtained by present method and is same up to ten decimal places. The whole analysis is presented in dimensionless form and the effect of variability of several parameters namely convection-conduction, radiation-conduction, thermal conductivity, emissivity, convection sink temperature, radiation sink temperature and exponent on the temperature distribution in fin and surface heat loss are studied and discussed in detail.http://www.sciencedirect.com/science/article/pii/S2212540X14000716FinWaveletConvectiveEmissivityWavelength |
| spellingShingle | Surjan Singh Dinesh Kumar K.N. Rai Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity Propulsion and Power Research Fin Wavelet Convective Emissivity Wavelength |
| title | Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity |
| title_full | Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity |
| title_fullStr | Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity |
| title_full_unstemmed | Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity |
| title_short | Convective-radiative fin with temperature dependent thermal conductivity, heat transfer coefficient and wavelength dependent surface emissivity |
| title_sort | convective radiative fin with temperature dependent thermal conductivity heat transfer coefficient and wavelength dependent surface emissivity |
| topic | Fin Wavelet Convective Emissivity Wavelength |
| url | http://www.sciencedirect.com/science/article/pii/S2212540X14000716 |
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