Air at 50 psia and 90 F flows through an expander (like a turbine) at the rate

Question:

Air at 50 psia and 90 F flows through an expander (like a turbine) at the rate of 1.6 lbm/s to an exit pressure of 14.7 psia.

(a) What is the minimum temperature attainable at the expander exit if changes in kinetic energy are neglected?

(b) If the inlet velocity is not to exceed 12 ft/s, what inlet diameter is required?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Thermodynamics Concepts And Applications

ISBN: 9781107179714

2nd Edition

Authors: Stephen R. Turns, Laura L. Pauley

See More Books

Question Posted: May 03, 2023 07:15 AM

See More Questions

Air at 50 psia and 90 F flows at the rate of 1.6 lb m /s through an insulated ideal turbine. If the air delivers 11.5 h p to the turbine blades, at what temperature does the air leave the turbine? z...
A rigid tank contains 20 lbm of air at 50 psia and 80F. The air is now heated until its pressure doubles. Determine (a) The volume of the tank and (b) The amount of heat transfer.
An insulated 40-ft3 rigid tank contains air at 50 psia and 120F. A valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. The air...
Yamini and Fatima, two students of Class IX of a school, together contributed Rs. 100 towards the Prime Ministers Relief Fund to help the earthquake victims. Write a linear equation which satisfies...
Prepare journal entries to record the following merchandising transactions of Gore Company, which applies the perpetual inventory system. (It will help to identify each receivable and payable; for...
Given A = [3] If 42-31, where / is the identity matrix of order 2, find x and y.
Water to run a Pelton wheel is supplied by a penstock of length $\ell$ and diameter $D$ with a friction factor $f$. If the only losses associated with the flow in the penstock are due to pipe...
Robbie is the vice president of Mailer Corporation. He owns 40% of Mailer, which is organized as an S corporation. Robbies salary is $75,000, and he receives group-term life insurance and health and...
You are a Project Manager for a boutique design and build contractor in Singapore. The company specialises in designing and building landed residential houses, and renovating condominium apartments,...
Bottle-Up, Inc. was organized on January 8, 2010. and made its Selection on January 24, 2010. The necessary consents to the election were filed in a timely manner. Its address is 1234 Hill Street,...
For the turbine in Problem 8.81, how does the isentropic efficiency change if the exit pressure is decreased to 35 kPa with the same outflow quality of 0.92? Problem 8.81 Steam enters a turbine as a...
Steam flows through a turbine in a nuclear power plant at 1,230,000 lb m /hr. The turbine inlet conditions are 500 psia and 1200 F, and the turbine outlet pressure is 5 psia. Determine the maximum...
Rewrite the following so that it doesnt use using declarations or using directives: #include using namespace std; int main() { double x; cout < < "Enter value: "; while (! (cin >> x) ) { cout < <...
Asset book value can be defined as a. historical cost b. market value c. replacement value d. cost less accumulated depreciation
Antipsychotic drugs have provided effective, long-term, and complete cures for schizophrenia. True or false?
One of the major criticisms of humanistic therapies is that a. They are too imprecise and unstructured. b. They treat only the symptom of the problem. c. The therapist dominates the patienttherapist...
Why have drug education campaigns largely been ineffective in stemming the use of illegal drugs? Should the use of certain now-illegal drugs be made legal? Would stressing reduction of drug use be...
In dream interpretation, a psychoanalyst must learn to distinguish between the __________content of a dream, which is what appears on the surface, and the __________content, its underlying meaning.
An emissions fee is paid to the government, whereas an injurer who is sued and held liable pays damages directly to the party harmed by an externality. What differences in the behavior of victims...
What is the maximum volume of 0.25 M sodium hypochlorite solution (NaOCl, laundry bleach) that can be prepared by dilution of 1.00 L of 0.80 M NaOCl?
A continuous foundation is to be constructed near a slope made of granular soil (see Figure 7.19). If B = 1.22 m, b = 1.83 m, H = 4.57 m, D f = 1.22 m, = 30, ' = 40, and = 17.29 kN/m 3 , estimate...
The following are the average values of cone penetration resistance in a granular soil deposit. Depth (m) Cone penetration resistance, q c (MN/m 2 ) 2 1.73 4 3.6 6 4.9 8 6.8 10 .. 8.7 15 .. 13...
Refer to Problem 7.15. If the design earthquake parameters are V = 0.35 m/s and A = 0.3, determine the seismic settlement of the foundation. Assume FS = 4 for obtaining static allowable bearing...
Compute the present value of an annuity in which hourly payments (8760 each year) of $0.41 are made for 3 years at an annual rate of 1.2%.
b) The hardware designer supplied: [5] Instruction Class A CPI for this class 3 B 1 C X Where X is the last digit of your id. Two code sequences require the following: Code Instruction counts for...
Marthastarts saving for her retirement by making monthly deposits into a retirement account whose annual rate is 3.9%.She plans to retire in29 years with an amount of money that has the same buying...

Air at 50 psia and 90 F flows through an expander (like a turbine) at the rate

Question:

Step by Step Answer:

a To find the minimum temperature attainable at the expander exit we can use the Isentropic process ...View the full answer

Thermodynamics Concepts And Applications

Students also viewed these Engineering questions