Heating performances of corn straw particles in a microwave chamber

ABSTRACT

Heating performance of biomass is of significant importance for the followed chemical reactions i.e. pyrolysis, gasification, combustion, etc. Corn straw (CS) is an important renewable resource. Microwave (MW) heating performances of corn straw particles affected by corn straw mass (10, 16, 22, 28 and 34 g), corn straw particle size (0.075, 0.125, 0.200, 0.355 and 0.600 mm) and microwave power (400, 450, 500, 550 and 600 W) were explored in detail in this study. It can be obtained that when the microwave powers were 400, 450, 500, 550 and 600 W, the average heating rates were 23.06, 33.19, 61.35, 88.70 and 101.46°C/min, respectively. When the corn straw particle sizes were 0.075, 0.125, 0.200, 0.355 and 0.600 mm, the average heating rates were 101.46, 61.07, 52.70, 37.34 and 56.04°C/min, respectively. When the corn straw masses were 10, 16, 22, 28 and 34 g, the average heating rates were 36.31, 46.24, 101.46, 92.95 and 46.01°C/min, respectively. Formulae were further proposed to estimate the transient temperatures of biomass particles, and the R² values ranged from 0.984 to 0.999.

KEYWORDS:

• Heating performance
• microwave
• corn straw
• biomass
• estimation

Acknowledgements

Financial support was provided by the National Natural Science Foundation of China (52076049) and Scientific Research Starting Foundation for the Postdoctors at Heilongjiang Province (AUGA4120000518).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The work was supported by the National Natural Science Foundation of China [52076049].

Notes on contributors

Longfei Cui

Mr. Longfei Cui is a master student at Harbin Institute of Technology.

Nan Qin

Miss Nan Qin is a undergraduate student at Harbin Institute of Technology.

Hui Li

Dr. Hui Li is associate professor at Shandong Jianzhu University.

Ehab Mostafa

Dr. Ehab Mostafa is professor at Cairo University.

Hui Liu

Dr. Hui Liu is professor at Harbin Institute of Technology.

Wenke Zhao

Dr. Wenke Zhao is assistant professor at Harbin Institute of Technology.

Yaning Zhang

Dr. Yaning Zhang is professor at Harbin Institute of Technology.