Using a 1/2 cu. ft per revolution dial on a meter, if it takes 40 seconds for one revolution, what is the gas flow rate in BTU/hr?

To determine the gas flow rate in BTU/hr using a 1/2 cubic foot per revolution dial on the meter, you'll need to first calculate the volume of gas flowing per hour based on the provided information about how long it takes for one revolution of the dial.

If one revolution of the dial accounts for 1/2 cubic foot of gas and that revolution takes 40 seconds, we can start by calculating how many revolutions occur in one hour (3600 seconds).

First, find out how many 40-second intervals fit into one hour:

3600 seconds per hour / 40 seconds per revolution = 90 revolutions per hour.

Since each revolution accounts for 1/2 cubic foot of gas, you multiply the number of revolutions by the volume per revolution:

90 revolutions/hour * 1/2 cubic foot/revolution = 45 cubic feet per hour.

Next, to convert this volume flow rate into BTUs per hour, you would need to know how many BTUs are contained in a cubic foot of gas. For natural gas, this is typically around 1,000 BTUs per cubic foot.

Therefore, multiply the cubic feet per hour by the BTU content per cubic foot:

45 cubic