mru VARIOluxx User Manual
Option gas flo measurement
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Summary of Contents for mru VARIOluxx
- Page 1 OPTION USER MANUAL Gas flow measurement VARIOluxx MGAluxx MGAprime 9452EN-OPT...
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Page 2: Table Of Contents
Legal notices / Intellectual property rights comments Original user manual © 2018 by MRU No part of this manual my be published in any form (print, photocopy, electronic media or any other publication form) without a written approval by the publisher. -
Page 3: Gas Flow Measurement
Gas flow measurement Gas flow measurement This option allows the user to determine the gas velocity at a single poin by means of a pitot tube (order separately). Based on the differential pressure between the ports of the pitot tube and the absolute pressure, the gas velocity is calculated. -
Page 4: Set Parameters
Gas flow measurement 1.1.2 Set parameters f Select in the context menu Gas flow measurement. f Enter the value „Pitot factor“. Please take the value from the documen- tation of the used pitot tube. f Select CHOOSE UNTIS f Select the wanted units fpr the measurements OPTION 4 / 8 Version 01... -
Page 5: Store The Measurement Results
Gas flow measurement Cross-section area For measuring the gas flow must be known the cross-section area. f Select the geometry of the cross-section area, circle, square or rectangle. f Enter the required value. Ö The cross-section area will be calculated. After returning to the measuring menu, the measurement starts auto- matically. -
Page 6: Appendix
Appendix Appendix Calculating the molar mass The molar mass of a gas depends on the gas proportions. This will be calculated on the equation 1 Equation 1: molar mass M = 0.00001* (32*[O ] + 44*[CO ] + 18*[H O] + 16*[CH ] + 28*[N ]: oxygen in [%] ]: carbon dioxide in [%]... -
Page 7: Calculating The Current Volume Flow
Appendix : mean value of pressure difference in [Pa] density of gas in The geometry of the used pitot tube will be considered by the pitot fac- tor. Equation 4: flow velocity with pitot factor : pitot factor pitot Calculating the current volume flow The current volume flow is, the current Flow velocity multiplied by the cross-section area.
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