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The pressure rating of the piping system will have to be greater than the highest pressure in the system. The greatest pressure in this system is at the pump discharge. The pressure at the pump discharge is 20psi + Δp_pump, where Δp_pump is the pressure rise across the pump. With the given...

Are you sure you have the problem stated correctly? Maybe 500 mBars, instead?

Thanks for the errata.... I saw the new 1.5 version a couple of weeks ago. One day, I might trust it.

That drawing is what is called Crossreferenced (Xref). You need to download the background drawing/s as well and save it to the same directory of the lighting drawing.

How are the videos coming along? It's been awhile...

I do agree with your solution.  However,  You could have just done P1 at the pump discharge and P2 the outlet of the pipe.  Just a quicker way to the solution. Mike

I typically use the equations I am used to.   the ultra common Q=1.08*CFM*(T2-T1)  for air or Q=500*GPM*(T2-T1). I only convert the mass flows if it requires that for an answer.

Can you please post the problem from the book so we can be sure the information is correct? Thanks

Not really am error but the Biot (Bi) <= 0.1  

The air tables are the fastest and most accurate things to use.  That equation is for constant entropy process as well.  Best to stick and get used to the tables.  TIME SAVER.

You are given the actual Inlet (T4) and Outlet (T5) Temperatures in the table.  It is simply not needed. You are given all the temperatures for the Regen. except for T3.  T3 is what you need to find to solve the problem for the thermal efficiency of the cycle.

When using the Affinity Laws, the efficiencies are assumed to be the same between points 1 and 2.

Reminds me of our Manning Formula discussion....

Congrats, Guest Darkchild!!!    I support Slay and his efforts here on this forum as well.

I can not go to the next video before solving all problems in the practice book.....  

Congrats!!!

Whoo hoo....   I got my weekend entertainment lined up!!!!

Yep...  Take a deep breadth and relax at the exam.  Work the problem methodically.  The exam is not that bad...

I look forward to watching...

I do not have experiences in power generation but a quick google did explain the differences.   https://www.ecourses.ou.edu/cgi-bin/ebook.cgi?doc=&topic=th&chap_sec=10.3&page=theory