×
Log in to StudySoup
Get Full Access to Process Dynamics And Control - 3 Edition - Chapter 2 - Problem 2.5
Join StudySoup for FREE
Get Full Access to Process Dynamics And Control - 3 Edition - Chapter 2 - Problem 2.5

Already have an account? Login here
×
Reset your password

Two surge tanks are used to dampen pressure fluctuations

Process Dynamics and Control | 3rd Edition | ISBN: 9780470128671 | Authors: Dale E. Seborg ISBN: 9780470128671 148

Solution for problem 2.5 Chapter 2

Process Dynamics and Control | 3rd Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Process Dynamics and Control | 3rd Edition | ISBN: 9780470128671 | Authors: Dale E. Seborg

Process Dynamics and Control | 3rd Edition

4 5 1 300 Reviews
19
1
Problem 2.5

Two surge tanks are used to dampen pressure fluctuations caused by erratic operations of a large air compressor. (See Fig. E2.5.) (a) If the discharge pressure of the compressor is Pd(t) and the operating pressure of the furnace is P1 (constant), develop a dynamic model for the pressures in the two surge tanks as well as for the air mass flows at points a, b, and c. You may assume that the valve resistances are constant, that the valve flow characteristics are linear, e.g., wb = (P1 - P2)/Rb, that the surge processes operate isothermally, and that the ideal gas law holds. (b) How would you modify your model if the surge tanks operated adiabatically? What if the ideal gas law were not a good approximation?

Step-by-Step Solution:

Problem 2.5Two surge tanks are used to dampen pressure fluctuations caused by erratic operations of alarge air compressor. (See Fig. E2.5.) (a) If the discharge pressure of the compressor is Pd(t)and the operating pressure of the furnace is P1 (constant), develop a dynamic model for thepressures in the two surge tanks as well as for the air mass flows at points a, b, and c. You mayassume that the valve resistances are constant, that the valve flow characteristics are linear,e.g., wb = (P1 - P2)/Rb, that the surge processes operate isothermally, and that the ideal gaslaw holds. (b) How would you modify your model if the surge tanks operated adiabaticallyWhat if the ideal gas law were not a good approximation Step-by-step solution Step 1 of 4 ^Two surge tanks used to dampen pressure fluctuations caused by erratic operations of a largeair compressor is shown in Figure 1.

Step 2 of 4

Chapter 2, Problem 2.5 is Solved
Step 3 of 4

Textbook: Process Dynamics and Control
Edition: 3
Author: Dale E. Seborg
ISBN: 9780470128671

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Two surge tanks are used to dampen pressure fluctuations