Problem
1. A boiler feed pump delivers 100 ft3/min of water at 400 F, 3000 lbf/in.2 What is the mass flow rate (lbm/s)? What would be the percent error if the properties of saturated liquid at 400 F were used in the calculation? What if the properties of saturated liquid at 3000 lbf/in.2 were used?
2. A pressure cooker has the lid screwed on tight. A small opening with A = 0.0075 in.2 is covered with a petcock that can be lifted to let steam escape. How much mass should the petcock have to allow boiling at 250 F with an outside atmosphere of 15 psia?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.