Numerical study of cullet glass subjected to microwave heating and SiC susceptor effects. Part II: Exergy transfer analysis

Acevedo, Luis ; Usón, Sergio (Universidad de Zaragoza) ; Uche, Javier (Universidad de Zaragoza)

Resumen: The mathematical model of exergy transfer in cullet glass heated by microwave inside of a cubical cavity with the aid of a susceptor is presented. Part I of this paper presented a numerical combined electromagnetic and heat transfer model by applying both transient Maxwell’s equations and heat transfer equations. Then, the electromagnetic and temperature fields were used to obtain the exergy transfer analysis in the oven. Exergy transfer analysis informs us about the efficiency of energy transformations taking place during the heating process, since it explains how the quality of the energy behaves along the heating process. The rate of internal exergy, exergy flowing and destroyed exergy were obtained and presented for this transient process. Part I showed that the susceptor location could change the temperature fields of cullet glass. So, an exergy analysis is important to understand the irreversibilities produced by a susceptor during preheating (microwaves activation) and heating process of the cullet glass, and how they could be minimized. Exergy transfer analysis shows how both, electromagnetic and heat transfer, are responsible of the irreversibilities generated in the heating process.

Idioma: Inglés

DOI: 10.1016/j.enconman.2015.03.065

Año: 2015

Publicado en: Energy Conversion and Management 97 (2015), 458-469
ISSN: 0196-8904

Factor impacto JCR: 4.801 (2015)

Categ. JCR: ENERGY & FUELS rank: 12 / 88 = 0.136 (2015) - Q1 - T1
Categ. JCR: THERMODYNAMICS rank: 2 / 58 = 0.034 (2015) - Q1 - T1
Categ. JCR: PHYSICS, NUCLEAR rank: 3 / 21 = 0.143 (2015) - Q1 - T1
Categ. JCR: MECHANICS rank: 3 / 135 = 0.022 (2015) - Q1 - T1

Factor impacto SCIMAGO: 2.023 - Energy Engineering and Power Technology (Q1) - Renewable Energy, Sustainability and the Environment (Q1) - Nuclear Energy and Engineering (Q1) - Fuel Technology (Q1)

Tipo y forma: Article (Published version)

Área (Departamento): Área Máquinas y Motores Térmi. (Dpto. Ingeniería Mecánica)