In some system, the working fluids sustain the process on a self sustaining basis, once a system has been started by some external power source. What is the name given to such a systems?

approximately 12,000 BTU/h

It measures the ratio of heat transferred into a fluid to the thermal capacity of the fluid.

Reynolds number

The important dimensionless numbers in fluid mechanics are
1. Reynold’s number
2. Froude’s number
3. Weber’s number
4. Euler’s number
5. Mach’s number or Cauchy’s number

Reynold’s number: Reynold’s number is the ratio of inertia force to the viscous force.

Froude’s number: Froude’s number is the ratio of inertia force to the gravity force.

Weber’s number: Weber’s number is the ratio of inertia force to the surface tension force.

Euler’s number: Euler’s number is the ratio of inertia force to the pressure force.

Mach’s number or Cauchy’s number: Mach’s number or Cauchy’s number is the ratio of inertia force to the elastic force.

132.4 °C and 111.3 atm