Experimental and Numerical Investigations of Fluid Flow Behaviors in a Biomass Cyclone Burner

Abstract

A combination of the experimental and numerical methods was used to investigate the fluid flow behaviors in a proposed cyclone burner. Recirculation flow and pressure drop, two of the important fluid flow behaviors that affect the burner's performance, have been studied here. Experimentally, the recirculation flow phenomenon in the burner was observed through paper slices dynamic in a transparent burner, and pressure drop was measured using a tube manometer. Meanwhile numerically, the fluid flow behaviors were simulated using the standard k-e turbulence model, under Ansys-Fluent software. The simulation results showed that, at a certain value of inlet aspect ratio (RIA) and initial tangential intensity (IIT), especially for high IIT, the recirculation flow phenomenon was clearly observed in the center of the burner cylinder which closely resembles a tornado-tail. The indication of existence recirculation flow was also found from the experiment results. The study also exhibited that the results of simulated static pressure drop were closely approaching the experiment results, particularly for IIT values £ 4.3. The mean deviation of static pressure between the simulation and the experiment results, for a varied range of RIA and IIT,was about 15%. From the results above, it was obvious that fluid flow behaviors (recirculation flow and static pressure) in the proposed cyclone burner are greatly influenced by the RIA and IIT values, where the IIT effect was more significant compared to the RIA. This study also suggests that, the standard k-e turbulence model could be relied upon to well predict the behaviors of fluid flow in the proposed cyclone burner, at low to moderate swirl intensities.

Review of Wood Biomass Cyclone Burner

“…In order to maintain the recirculation zone of the chamber, several design factors have been studied by multiple researchers. The geometry effects on swirl intensity have been deliberated by many authors [25,[36][37][38][39]. Operating conditions, such as the velocity of air, feeder speed of fuel, and chamber temperature, were also identified in relationship with the swirl intensity, by Nemoda et al [40] and Pasymi et al [41].…”

Digitalized turbulent behaviors of air and rice husk flow in a vertical suspension furnace from computational fluid dynamics simulation

“…Moreover, the digital simulation data can logically describe fluid science and detail phenomena inside the furnace. Actually, the study related to the experiment for validating fluid–particle flow behavior in the biomass cyclonic burner has been conducted by Pasymi et al (2020) for air flow dynamics 68 and Pasymi et al (2020) for Mischantus flow structure 40 . They found a close match for the flow pattern between experiment and simulation results.…”

Pengembangan Buku Panduan Pembelajaran Al-Qur’an Anak Usia Dini Berbasis Hands on Learning untuk Orang Tua Sebagai Aktualisasi Pendidikan Keluarga Qur’ani

“…Pengaruh besar dari perubahan dunia pada zaman sekarang ialah karena teknologi, dimana hal tersebut tidak dapat dihindari namun manusia dapat beradaptasi seiring dengan perkembangannya. Teknologi yang pesat berkembang dapat mempengaruhi gaya hidup serta perkembangan ekonomi manusia (Pasymi Pasymi, 2021). Hal ini juga dapat menyebabkan terpengaruhnya pendidikan, dan cara bagaimana keluarga khususnya orang tua mendidik anak.…”