Study on heating characteristics of granites with different sizes in microwave field-Reference-Cited by-同舟云学术

Study on heating characteristics of granites with different sizes in microwave field

Published:2024 Issue:4 Part B Volume:28 Page:3511-3516
ISSN:0354-9836
Container-title:Thermal Science
language:en
Short-container-title:Therm sci

Author:

Zhang Yang¹,Yang Ben-Gao²,Xie Jing¹,Tang Rui-Feng¹,Bai Yan-Bo¹,Gao Ming-Zhong³

Affiliation:

1. College of Water Resource and Hydro Power, State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, Sichuan University, Chengdu, China

2. College of Water Resource and Hydro Power, State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, Sichuan University, Chengdu, China + Yunlong Lake Laboratory, Xuzhou, China

3. College of Water Resource and Hydro Power, State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, Sichuan University, Chengdu, China + Yunlong Lake Laboratory, Xuzhou, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy, Shenzhen University, Shenzhen, China

Abstract

Studying the heating characteristics of rocks in a microwave field is fundamental to exploring the mechanism of microwave rock breaking. Therefore, a heterogeneous granite model was established using COMSOL Multiphysics to deeply analyze the specific influence of rock size on rock heating characteristics in a microwave field. The results show that with the increase of rock size, the heating rate of rock exhibits a fluctuation characteristic. This phenomenon occurs because changes in rock size leads to variations in both the magnitude and spatial arrangement of electric field intensity. Further analysis of the electromagnetic loss of granite reveals that increasing rock volume can significantly enhance microwave energy utilization ef?ficiency. Additionally, biotite occupying only 8% of the rock volume, absorbs over 55% of the microwave energy, highlighting the significant impact of biotite content on the heating characteristics of granite.

Publisher

National Library of Serbia

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