REEVALUATING PRESSURE PEAKS IN PULSE-JET FILTER CLEANING: THE IMPACT OF TIME AVERAGING ON EFFICIENCY ASSESSMENT

The performance of pulse-jet filter cleaning systems is often evaluated using peak pressure as a key parameter. This study shows that the sensitivity and sampling rate of data acquisition systems can significantly affect the recorded peak pressure values, leading to potential ambiguities in the evaluation of cleaning performance. Using CFD-based numerical modeling, the effects of acquisition time intervals and time averaging methods on pressure measurements were analyzed. The results show that systems with various sensitivity and sampling rates provide different values of pressure fluctuations, leading to significant deviations in peak pressure values. Time averaging over 10<sup>-3</sup> s also affects the results of the measurement. These findings emphasize the importance of considering instrumentation limitations and disclosing detailed sensor specifications in experimental studies. The objective of this work is to raise awareness among researchers of the need to accurately represent data acquisition parameters and their potential impact on the evaluation of pulse-jet cleaning systems.