Chang, Po-KaiPo-KaiChangHuang, Han-ShengHan-ShengHuangSHENG-HSIU HUANGTA-CHIH HSIAO2025-11-272025-11-272026-02-2613835866https://www.scopus.com/record/display.uri?eid=2-s2.0-105020266042&origin=resultslisthttps://scholars.lib.ntu.edu.tw/handle/123456789/734200This study investigates the influence of operational parameters on the performance of a laboratory-scale pulse-jet baghouse filtration system, focusing on dust cake structure, residual pressure drop, and filtration cycle duration. Using polyethylene (PE) filter media and 3-μm PMMA particles, experiments were conducted under varying relative humidity (RH), tank pressures (1, 2, and 4 kg/cm2), and with or without a Venturi tube. Results show that residual pressure drop increases progressively due to incomplete dust cake removal, with lower RH (20 %) exacerbating dust adhesion through enhanced electrostatic charging, leading to denser dust cakes and shorter filtration cycles. The inclusion of a Venturi tube at 2 kg/cm2 improved cleaning efficiency, achieving performance comparable to 3–4 kg/cm2 without a Venturi. Higher tank pressures reduced residual pressure buildup and extended filtration durations, though benefits diminished beyond 2 kg/cm2. Application of the Kozeny-Carman model revealed a decrease in model-derived dust cake porosity post-cleaning, indicating a transition to more compact structures. These findings provide guidance for energy-efficient operation of industrial baghouses through optimization of RH control and pulse-jet conditions.enfalseBaghouse filtrationCleaning efficiencyModel-derived dust cake porosityPulse-jet cleaningResidual pressure drop[SDGs]SDG7[SDGs]SDG9journal article10.1016/j.seppur.2025.1358542-s2.0-105020266042