Fidelity
Which of the four tasks of the system-simulation process given in Fig. 5-1 is the most important if good fidelity is to be achieved?
Uncategorized
An inflection point
1. If a pump with H = 200 – 0.01Q2 is placed in line 6 of a network, what are the values of jill for use in the generalized Hardy-Cross method? 2. What minimum-order polynomial is required to fit a curve with an inflection point?
An inflection point Read More »
System of equations
In Example 5-4 the system of equations required to simulate the cooling loop involves Re, IF, U, NTU, and C. Why are Re (Q),fF(Q), U(Q), NTU(Q), and C(Q) not included in the Matlr Cad Given/Find block of statements?
System of equations Read More »
The low reservoir
Three pumps in the arrangement shown in Fig. RQ5-13 are to be used to pump water from the low reservoir to the high reservoir. (a) Write the energy equation between a and b. State all assumptions. (b) State the equations needed to determine the operating point. Fig. RQ5-13
The energy equation
Two pumps in series are used to pump water from a low reservoir to a high reservoir. A schematic representation is shown in Fig. P5-1. (a) Write the energy equation between stations band a. State all assumptions. (b) Find the equations needed to determine the steady-state operating point using system simulation. (c) In what other
The energy equation Read More »
Develop a simulation program
Heat-exchanger characteristics: Simple counter flow U = 250 Btu/hr-ft/- OF A =-i,200 ft2 Pressure drop on hydraulic fluid is in Fig. P5-7(b) Fig. P5-7(b) Using the information given: (a) Develop the equations required to simulate the system if the exit temperature T; is a required output of the simulation’ process. (b) Develop a simulation program.
Develop a simulation program Read More »
The physical meaning
1. Explain what mean. 2. What is the physical meaning of each term in Eq. (6-6)? Eq. (6-6)
The physical meaning Read More »
The central thesis
Explain the analogy between uncertainty in experimentation and uncertainty in thermal-systems analysis and design. What is a sensitivity coefficient? Explain why the central thesis of the uncertainty procedure examined in this chapter is that .the squared product not the individual magnitude of the terms, is the important value. What does say about the effect of
The central thesis Read More »