Abstract :

In this study, we obtained the values of the thermodynamic properties of sargassum that includes S. fluitans and S. natans species, which are the ones that most arrive at the coasts of the Mexican Caribbean. The sargassum samples, collected at the coast, were dried in a direct type of solar dryer and their final relative humidity was 15% dry base. Two physical models were designed to construct biscuits of 0.0127 m in diameter and 0.0063 m in length, which were used to obtain the density and calorific value and those used for thermal conductivity, were 0.069 m in diameter and 0.008 m thick. The density resulted in . To determine the calorific value, a commercial calorimetric pump was used, and the value obtained was . For thermal conductivity, a device that employs the hot plate and guard method was designed and built and its value was . These values indicate that it is possible to use dehydrated sargassum to produce energy, which has approximately a value of 75% of that obtained for sugar cane bagasse. With these three values and using the thermal diffusivity definition equation, this last parameter was calculated in

---

Keywords :

calorific value, Density, Sargassum fluitans, Sargassum natans, thermal conductivity

---

References :

1. Torres B B 2019 El sargazo en las costas mexicanas. Universidad Veracruzana, Revista La Ciencia y el Hombre Vol. XXXII https://www.uv.mx/cienciauv/blog/el-sargazo-en-las-costa-mexicanas
2. Rodríguez-Martínez R E, Roy P D, Torrescano-Valle N, Cabanillas-Terán, N, Carrillo-Domínguez S, Collado-Vides L, García-Sánchez M, van Tussenbroek B. I 2020 Element concentrations in pelagic Sargassum along the Mexican Caribbean coast in 2018-2019. PeerJ 8 8667 http://doi.org/10.7717/peerj.8667
3. Gower J, Young E, King S 2013 Satellite images suggest a new Sargassum source region in 2011, Remote Sensing Letters, 4 764-773. http://dx.doi.org/10.1080/2150704X.2013.796433
4. Rodríguez-Martínez R E, Medina-Valmaseda A E, Blanchon P, Monroy-Velázquez L V, Almazán-Becerril A, Delgado-Pech B, Vásquez-Yeomans L, Francisco V, García-Rivas M C 2019 Faunal mortality associated with massive beaching and decomposition of pelagic Sargassum. Marine Pollution Bulletin 146 201–205. https://doi.org/10.1016/j.marpolbul.2019.06.015

5. Patrón-Prado M, Acosta-Vargas B, Serviere-Zaragoza E, Méndez-Rodríguez L C 2010 Copper and Cadmium Biosorption by Dried Seaweed Sargassum sinicola in Saline Wastewater Water Air and Soil Pollution 210 197–202. http://doi.10.1007/s11270-009-0241-3
6. Leal Bautista R M, Tapia Tussell R, Alzate Gaviria L Usos potenciales del sargazo Ciencia 71 (4). Available from: https://www.revistaciencia.amc.edu.mx/images/revista/71_4/PDF/11_71_4_1286 _Sargazo_Potencial.pdf
7. Salgado-Hernández E, Ortiz-Ceballos A I, Martínez-Hernández S, Rosas-Mendoza E S, Dorantes-Acosta A E, Alvarado-Vallejo A, Alvarado-Lassman A 2023 Methane Production of Sargassum spp. Biomass from the Mexican Caribbean: Solid–Liquid Separation and Component Distribution International Journal of Environmental Research. Public Health 20 219 https://doi.org/10.3390/ijerph20010219.
8. Fudholi A, Sopian K, Othman M Y, Ruslan M H 2014 Energy and exergy analyses of solar drying system of red seaweed Energy and Buildings 68 121–129 http://dx.doi.org/10.1016/j.enbuild.2013.07.072
9. Le Loeuff J, Boy V, Morançais P, Colinart T, Bourgougnon N, Lanoiselle J L 2021 Mathematical Modeling of Air Impingement Drying of the Brown Algae Sargassum muticum (Fucales) Chemical Engineering Technology 44 2073–2081. http://doi.org/10.1002/ceat.202100244
10. López R, Vaca M, Lizardi A 2022 Analysis of the drying kinetics of sargassum using solar energy. XII International Congress on Physics Engineering
11. Secretary of Energy of Mexico 2018 Electric sector prospect 2018–2032 2018 Available from: https://base.energia.gob.mx/Prospectivas18-32/PSE_18_32_F.pdf.
12. Sosa Olivier J A, Laines Canepa J R, Guerrero Zarate D, González Díaz A, Figueiras Jaramillo D A, Osorio García H K, López B E 2022 Bioenergetic valorization of Sargassum fluitans in the Mexican Caribbean: The determination of the calorific value and washing mechanism. AIMS Energy 10 45–63 https://doi.org/10.3934/energy.2022003
13. 1341 Plain Jacket Calorimeter. PARR Instrument Company 2019 Illinois, USA.
14. Norma Mexicana NMX-AA-33-1985. Protección al Ambiente Contaminación del Suelo Residuos Sólidos Municipales Determinación de Poder Calorífico superior. Esta Norma fue modificada de Norma Oficial Mexicana a Norma Mexicana, de acuerdo al Decreto publicado en el Diario Oficial de la Federación de fecha 6 de noviembre de 1992.
15. 1997, ASTM, “ASTM-C-177-97 Standard Test Method for Steady-State Thermal Properties by means of the Guarded-Hot-Plate apparatus American Society for Testing and Materials 1993 Annual Book of ASTM Standard 04.06 Philadelphia
16. Haynes, W. M., Lide, D. R., Bruno, T. J. 2016 Handbook of Chemistry and Physics. 97th Ed CRC Press USA
17. Mbohwa C 2006 Modelling Bagasse Electricity Generation: An Application to the Sugar Industry in Zimbabwe Proceedings from the International Conference on Advances in Engineering and Technology https://doi.org/10.1016/B978-008045312-5/50040-6
18. Ramón-Ramón S A, Cárdenas-Gutiérrez J A, Rojas-Suárez J P 2018 Poder calorífico de la cascarilla de arroz usada como combustible en hornos de secado Mundo FESC 8 72 -76, ISSN 2216-0353