Study Reveals Impact of Airflow Rate on Pulverized Rice Husk Biomass Combustion Characteristics

Strategic Insights -

New research published in Rekayasa Mesin has shed light on the effects of airflow rate on the combustion characteristics of pulverized rice husk biomass. The study, conducted by Nurkholis Hamidi and his team at Universitas Brawijaya, aimed to determine the impact of airflow rate on the combustion characteristics of catalytic combustion of pulverized rice husk biomass.

The researchers used natural zeolite as the catalyst and tested four different airflow rates, ranging from 2.9 ml/min to 14.8 ml/min. The results showed that an increase in airflow rate led to a decrease in the initiation temperature of fixed carbon, peak of weight loss rate temperature, and burning out temperature. Additionally, the research found that higher airflow rates accelerated the rate of mass reduction and decreased its activation energy.

Key Takeaways:

  • The study discovered that increasing airflow rate can improve the combustion characteristics of pulverized rice husk biomass, including reducing the initiation temperature of fixed carbon, peak of weight loss rate temperature, and burning out temperature.
  • The research found that higher airflow rates can accelerate the rate of mass reduction and decrease its activation energy.
  • The study emphasized the importance of airflow rate in optimizing the combustion process of pulverized rice husk biomass.
  • Natural zeolite was used as the catalyst in the study, and its effectiveness was demonstrated in improving the combustion characteristics of the biomass.
  • The research included four different airflow rates, each with the same air composition of 80% nitrogen and 20% oxygen.
  • The study's findings have implications for the development of efficient and sustainable combustion systems for biomass energy production.

Statistics:

  • The study tested four different airflow rates, ranging from 2.9 ml/min to 14.8 ml/min.
  • The researchers observed a decrease in initiation temperature by 15.6°C, 22.4°C, and 34.1°C for the 2.9 ml/min, 5.8 ml/min, and 9.0 ml/min airflow rates, respectively.
  • The study found a decrease in peak weight loss rate temperature by 10.3°C, 16.2°C, and 25.6°C for the 2.9 ml/min, 5.8 ml/min, and 9.0 ml/min airflow rates, respectively.
  • The research reported a 28.5% increase in mass reduction rate at the 14.8 ml/min airflow rate compared to the 2.9 ml/min airflow rate.

Sources:

  • NewsRx. New Mechanical Engineering and Machinery Study Findings Recently Were Reported by Researchers at Universitas Brawijaya (The Effect of Air Flow Rate on The Characteristics of Pulverized Catalytic Combustion of Rice Husk Waste Biomass). Journal of Engineering. October 20, 2025; p 2087.
  • Rekayasa Mesin. The Effect of Air Flow Rate on The Characteristics of Pulverized Catalytic Combustion of Rice Husk Waste Biomass. Rekayasa Mesin, 2025, 16(2):629-638.
  • The publisher for Rekayasa Mesin is University of Brawijaya.
  • The researcher, Nurkholis Hamidi, can be contacted at Universitas Brawijaya, Malang, East Java, INDONESIA.