Hi guys,

I'm new to this and the forum so please bare with me. I have been given the mission to calculate the nitrogen consumption by our oven.

The system I'm dealing with is:

Nitrogen enters the oven so we get better solder joints, the oven temperature varies. Nitrogen flows from the tank to various machines in the shop. I need to calculate the nitrogen cost per board.

This is what I have so far:

Flow rate into the oven is set at 820 SCFH

Oven is running with Nitrogen for 17.90667 minutes / unit

Nitrogen cost is $929.43 for 45437 FT^3

What I calculated:

-I divided time (17.90667) by 60 to get the results in hours. (0.298444 hour/unit)

- I multiplied the flow rate by duration (820*0.298444)=244.7244444

Then I did the following:

244.724444 costs X dollars, 45437 FT^3 costs $929.43. x=(244.7244444*929.43)/45437 this results in a grand total of $5.005926 of Nitrogen per board.

Did I calculate this right? Am I thinking correctly about this?

I'm new to this and the forum so please bare with me. I have been given the mission to calculate the nitrogen consumption by our oven.

The system I'm dealing with is:

Nitrogen enters the oven so we get better solder joints, the oven temperature varies. Nitrogen flows from the tank to various machines in the shop. I need to calculate the nitrogen cost per board.

This is what I have so far:

Flow rate into the oven is set at 820 SCFH

Oven is running with Nitrogen for 17.90667 minutes / unit

Nitrogen cost is $929.43 for 45437 FT^3

What I calculated:

-I divided time (17.90667) by 60 to get the results in hours. (0.298444 hour/unit)

- I multiplied the flow rate by duration (820*0.298444)=244.7244444

Then I did the following:

244.724444 costs X dollars, 45437 FT^3 costs $929.43. x=(244.7244444*929.43)/45437 this results in a grand total of $5.005926 of Nitrogen per board.

Did I calculate this right? Am I thinking correctly about this?

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