How can I measure the weight loss of Oxygen?

[hiangus...@gmail.com]

I am simulating a fire inside a tune. I am supplying fresh air from one end and leave another end open. I want to measure the loss of oxygen (weight). I know I shall put one "sensor" at the upstream and one at the "downstream".

However what type of "DEVC" I shall use? and the "QUANTITY"?

Much appreciate if someone can show me a tips or a example of the input line.

[fde]

Since it is not a closed system, the definition of the weight loss is not clear to me. Instead you can do a post process over the heat release rate and find out how much Oxygen is consumed as per the stoichiometry of your combustion.

[hiangus...@gmail.com]

well, of I put it in a simple way. what if I want to measure the MASS of the oxygen in the air when air pass via a section?

[Randy McDermott]

&DEVC ID=..., XB=..., QUANTITY='DENSITY', SPEC_ID='OXYGEN', SPATIAL_STATISTIC='VOLUME INTEGRAL' /

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