EXPERIMENTAL VALIDATION OF A LOCAL VENTILATION DESIGN SOFTWARE

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JAFARI MOHAMMAD JAVAD; NOORIZADEH NAJAF; KHODAKARIM SOHEILA

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Journal: IRAN OCCUPATIONAL HEALTH JOURNAL Year:2018 | Volume:14 | Issue:6 Page(s): 107-115

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Information Journal Paper

Title

EXPERIMENTAL VALIDATION OF A LOCAL VENTILATION DESIGN SOFTWARE

Author(s)

JAFARI MOHAMMAD JAVAD | NOORIZADEH NAJAF | KHODAKARIM SOHEILA | Issue Writer Certificate

Keywords

EXPERIMENTAL VALIDATIONQ1

SOFTWAREQ1

LOCAL EXHAUST VENTILATIONQ1

PITOT TUBEQ1

THERMAL ANEMOMETERSTQ1

Abstract

Background and aims: The application of computer codes and numerical modeling in studies and industry is growing. When using computer codes, the accuracy of these encodings and modeling are big questions. Comparing the results of the SOFTWARE with experimental results is the best method of evaluating these programs. The objective of this study was to experimentally validate a SOFTWARE program developed for LOCAL EXHAUST VENTILATION design.Methods: In this experimental study, seven different LOCAL EXHAUST VENTILATION systems were designed and constructed. Velocity pressure, static pressure, total pressure and air velocity were measured at key points of each system. All measured values were compared with similar calculated values by computer SOFTWARE. One-sample T test and Bland Altman plot were used to compare the similar measured and computed parameters. SPSS version 19 was applied for statistical analysis.Results: The percentage difference of measured and calculated air velocities at all channels and hoods were ignorable with maximum amount of 0.5%. Difference between the measured and the calculated values of velocity pressure, static pressure and total pressure in the entire systems were less than 5 percent. Bland-Altman plot and one sample T test showed that the differences were in the range of 2SD and confirmed matching.The results revealed that the air velocities measured with PITOT TUBE are much more accurate than those measured by thermal anemometer with maximum difference of 14.7%.Conclusion: This study showed that the tested SOFTWARE has an acceptable accuracy with less tha ±5% of error. It also revealed that the application of PITOT TUBE is much more accurate that thermal anemometer.

Cites

Design and Validation of an Iranian Application Software for the Evaluation of the Permit-to-work System in Process Industries

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APA: Copy

JAFARI, MOHAMMAD JAVAD, NOORIZADEH, NAJAF, & KHODAKARIM, SOHEILA. (2018). EXPERIMENTAL VALIDATION OF A LOCAL VENTILATION DESIGN SOFTWARE. IRAN OCCUPATIONAL HEALTH JOURNAL, 14(6 ), 107-115. SID. https://sid.ir/paper/129120/en

Vancouver: Copy

JAFARI MOHAMMAD JAVAD, NOORIZADEH NAJAF, KHODAKARIM SOHEILA. EXPERIMENTAL VALIDATION OF A LOCAL VENTILATION DESIGN SOFTWARE. IRAN OCCUPATIONAL HEALTH JOURNAL[Internet]. 2018;14(6 ):107-115. Available from: https://sid.ir/paper/129120/en

IEEE: Copy

MOHAMMAD JAVAD JAFARI, NAJAF NOORIZADEH, and SOHEILA KHODAKARIM, “EXPERIMENTAL VALIDATION OF A LOCAL VENTILATION DESIGN SOFTWARE,” IRAN OCCUPATIONAL HEALTH JOURNAL, vol. 14, no. 6 , pp. 107–115, 2018, [Online]. Available: https://sid.ir/paper/129120/en

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