similarity result of_The Effect of 45º Upward Flow Straightener Position on Flow Uniformity in Sampling Point of Chimney

Puspitasari, Dewi (2023) similarity result of_The Effect of 45º Upward Flow Straightener Position on Flow Uniformity in Sampling Point of Chimney. Turnitin Universitas Sriwijaya. (Submitted)

Text similarity result of _The effect of 45 degree upward Flow straightener Position in Sampling Point of Chimney.pdf Download (1MB)

Abstract

Air pollution is one of the factors that can cause the decreasing of air quality in urban areas, especially in areas close to the industry. The government made a policy for the industrial sector to conduct the emission quality measurements in their operating chimneys. Commonly, the quality of emissions from the chimney sampling point is still above the permissible threshold. This condition occurs due to the lack of uniform emission flow near the sampling point. Based on the EPA method, the exhausted gas flow condition near the sampling point must have uniform velocity and small helicity. Therefore in this study the author tried to modify the channel in the chimney by installing a flow straightener (FS) in order to reduce helicity and the degree of uniformity of the flow. The upward 45° FS was chosen. For further research, position of flow straightener at a chimney vertical distance was set at 0.75D, 1D and 1.25D from lower disturbance. Based on the computational results, the best KV value of 32.32% with FS 1.25 D and KV value of 35.52% with 0.75 D were obtained. The closer to the sampling point, the KV value will improve. This result indicated that the accuracy of measurement of emission quality at the sampling point can be improved

Item Type:	Other
Subjects:	#3 Repository of Lecturer Academic Credit Systems (TPAK) > Results of Ithenticate Plagiarism and Similarity Checker
Divisions:	03-Faculty of Engineering > 21101-Mechanical Engineering (S2)
Depositing User:	Dr. Dewi Puspitasari
Date Deposited:	07 May 2023 02:33
Last Modified:	07 May 2023 02:33
URI:	http://repository.unsri.ac.id/id/eprint/99891

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