Moisture dependent thermal properties of selected vegetables in Akwa Ibom State, Nigeria

Olugbenga Abiola Fakayode and Olayemi Olubunmi Ojoawo
Additional contact information
Olugbenga Abiola Fakayode: Department of Agricultural and Food Engineering, Faculty of Engineering, University of Uyo, Uyo, Nigeria
Olayemi Olubunmi Ojoawo: National Agency for Food and Drug Administration and Control (NAFDAC), Abuja, Nigeria

Research in Agricultural Engineering, 2019, vol. 65, issue 2, 56-62

Abstract: The thermal properties of some selected vegetables in Akwa Ibom State, Nigeria were investigated. The specific heat, thermal conductivity and thermal diffusivity for the five selected vegetables (Afang, Nkong, Atama, Editan and Nton) were determined and the moisture content variation was investigated. The specific heat values ranged from 2,348-4,580 J.kg-1.K-1, while the thermal conductivity values ranged from 0.00368-0.489 and the thermal diffusivity values ranged from 1.03 × 10-7-1.99 × 10-7 m2.s-1. Nton had the highest specific heat and thermal conductivity, while Editan had the highest diffusivity. An increase in the moisture content increased the specific heat, thermal conductivity and diffusivity of the vegetables and the relationships were found to be linear. Regression equations for the thermal properties were established as a function of the product's moisture content with the experimental data from this study. The thermal properties of the vegetables varied linearly with the moisture content and there were significant differences in the thermal properties of the selected vegetables.

Keywords: specific heat; thermal conductivity; thermal diffusivity; moisture content; Ibibio (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://rae.agriculturejournals.cz/doi/10.17221/39/2018-RAE.html (text/html)
http://rae.agriculturejournals.cz/doi/10.17221/39/2018-RAE.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:65:y:2019:i:2:id:39-2018-rae

DOI: 10.17221/39/2018-RAE

Access Statistics for this article

Research in Agricultural Engineering is currently edited by Bc. Michaela Polcarová

More articles in Research in Agricultural Engineering from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().