Convert 60,000 BTU/hr to in.cubic feet/minute.

To convert from BTU/hr (British Thermal Units per hour) to in.cubic feet/minute (cubic inches per minute), you need to follow these steps:

Step 1: Understand the conversion factors:
1 BTU = 1,055.05585262 J (Joules)
1 BTU = 1,000 Little Calories
1 cubic foot = 1,728 cubic inches
1 hour = 60 minutes

Step 2: Convert BTU/hr to Joules/min:
To convert from BTU/hr to Joules/min, you need to multiply by 1,055.05585262 (conversion factor from BTU to Joules) and then divide by 60 (to convert from hours to minutes).

60,000 BTU/hr * (1,055.05585262 J/BTU) / 60 min = 1,051,607.598 J/min

Step 3: Convert Joules/min to cubic inches/minute:
To convert from Joules/min to cubic inches/minute, you need to divide the value by the energy equivalent of a cubic inch in Joules. According to the US National Institute of Standards and Technology (NIST), the energy equivalent of a cubic inch is approximately 1.671 * 10^-20 Joules.

1,051,607.598 J/min / (1.671 * 10^-20 J/in^3) = 6.298 * 10^26 in^3/min

So, 60,000 BTU/hr is approximately equal to 6.298 * 10^26 in.cubic feet/minute.