Next Article in Journal
Reversible Dimerization of Human Serum Albumin
Next Article in Special Issue
Effects of Total Thermal Balance on the Thermal Energy Absorbed or Released by a High-Temperature Phase Change Material
Previous Article in Journal
Selective Recognition of Amino Acids and Peptides by Small Supramolecular Receptors
Previous Article in Special Issue
Triglycerides as Novel Phase-Change Materials: A Review and Assessment of Their Thermal Properties
Article

Characterization of Unripe and Mature Avocado Seed Oil in Different Proportions as Phase Change Materials and Simulation of Their Cooling Storage

1
Facultad de Ingeniería y Ciencias Aplicadas, Universidad Internacional SEK, Albert Einstein s/n and 5th, Quito 170302, Ecuador
2
Instituto de Investigación Geológico y Energético (IIGE), Quito 170518, Ecuador
*
Author to whom correspondence should be addressed.
Academic Editors: Ana Ines Fernandez Renna and Camila Barreneche
Molecules 2021, 26(1), 107; https://doi.org/10.3390/molecules26010107
Received: 5 November 2020 / Revised: 18 December 2020 / Accepted: 18 December 2020 / Published: 29 December 2020
(This article belongs to the Special Issue Phase Change Materials 2.0)
Environmental problems have been associated with energy consumption and waste management. A solution is the development of renewable materials such as organic phase change materials. Characterization of new materials allows knowing their applications and simulations provide an idea of how they can developed. Consequently, this research is focused on the thermal and chemical characterization of five different avocado seed oils depending on the maturity stage of the seed: 100% unripe, 25% mature-75% unripe, 50% mature-50% unripe, 75% mature-25% unripe, and 100% mature. The characterization was performed by differential scanning calorimetry, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The best oil for natural environments corresponded to 100% matured seed with an enthalpy of fusion of 52.93 J·g1, and a degradation temperature between 241–545 °C. In addition, the FTIR analysis shows that unripe seed oil seems to contain more lipids than a mature one. Furthermore, a simulation with an isothermal box was conducted with the characterized oil with an initial temperature of −14 °C for the isothermal box, −27 °C for the PCM box, and an ambient temperature of 25 °C. The results show that without the PCM the temperature can reach −8 °C and with it is −12 °C after 7 h, proving its application as a cold thermal energy system. View Full-Text
Keywords: phase change material; cold thermal energy storage; avocado oil; thermal simulation; material characterization; fatty acids phase change material; cold thermal energy storage; avocado oil; thermal simulation; material characterization; fatty acids
Show Figures

Figure 1

MDPI and ACS Style

Reyes-Cueva, E.; Nicolalde, J.F.; Martínez-Gómez, J. Characterization of Unripe and Mature Avocado Seed Oil in Different Proportions as Phase Change Materials and Simulation of Their Cooling Storage. Molecules 2021, 26, 107. https://doi.org/10.3390/molecules26010107

AMA Style

Reyes-Cueva E, Nicolalde JF, Martínez-Gómez J. Characterization of Unripe and Mature Avocado Seed Oil in Different Proportions as Phase Change Materials and Simulation of Their Cooling Storage. Molecules. 2021; 26(1):107. https://doi.org/10.3390/molecules26010107

Chicago/Turabian Style

Reyes-Cueva, Evelyn, Juan F. Nicolalde, and Javier Martínez-Gómez. 2021. "Characterization of Unripe and Mature Avocado Seed Oil in Different Proportions as Phase Change Materials and Simulation of Their Cooling Storage" Molecules 26, no. 1: 107. https://doi.org/10.3390/molecules26010107

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop