Consider a combined gas-steam turbine cycle with both machines ideal. Air enters the compressor at 1...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Consider a combined gas-steam turbine cycle with both machines ideal. Air enters the compressor at 1 atm and 500°R. 400 percent theoretical air gases enter the gas turbine at 2400°R. The pressure ratio for both compressor and turbine is 6. No intercooling, reheat, or regeneration are used in the gas-turbine cycle. The turbine exhaust is used directly without supplementary firing and leaves to the stack at 800°R. Steam is produced at 1000 psia and 900°F. The condenser pressure is 1 psia. No feedwater heating is used and the pump work may be ignored, Draw the flow and T-s diagrams labelling points correspondingly, and calculate (a) the heat added, per pound mass of air, (b) the steam flow per pound mass of air, (c) the combined work, in Btus per pound mass of air, (d) the combined plant efficiency, and (e) the plant efficiency if the steam cycle is inoperative. (f) Exergic Efficiency Consider a combined gas-steam turbine cycle with both machines ideal. Air enters the compressor at 1 atm and 500°R. 400 percent theoretical air gases enter the gas turbine at 2400°R. The pressure ratio for both compressor and turbine is 6. No intercooling, reheat, or regeneration are used in the gas-turbine cycle. The turbine exhaust is used directly without supplementary firing and leaves to the stack at 800°R. Steam is produced at 1000 psia and 900°F. The condenser pressure is 1 psia. No feedwater heating is used and the pump work may be ignored, Draw the flow and T-s diagrams labelling points correspondingly, and calculate (a) the heat added, per pound mass of air, (b) the steam flow per pound mass of air, (c) the combined work, in Btus per pound mass of air, (d) the combined plant efficiency, and (e) the plant efficiency if the steam cycle is inoperative. (f) Exergic Efficiency
Expert Answer:
Answer rating: 100% (QA)
1 Draw the Ts diagram for the combined cycle Gas turbine cycle 12 Isentropic compression T1 500R P1 ... View the full answer
Related Book For
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
Posted Date:
Students also viewed these accounting questions
-
Consider a combined gassteam power cycle. The topping cycle is a simple Brayton cycle that has a pressure ratio of 7. Air enters the compressor at 15°C at a rate of 10 kg/s and the gas turbine at...
-
Consider a combined gas-steam power cycle. The topping cycle is a simple Brayton cycle that has a pressure ratio of 7. Air enters the compressor at 15°C at a rate of 40 kg/s and the gas turbine...
-
Using the following uniform density curve, answer the question. Plx) 125 7 8 What is the probability that the random variable has a value less than 5? 0.125 0.625 K0.75 0.5
-
Use CPI/subway data from the preceding exercise to test for a correlation between the CPI (Consumer Price Index) and the subway fare. Use the rank correlation coefficient to test for a correlation...
-
Consider the following monster rational function. Analyzing this function will synthesize many of the concepts of this and earlier sections. (a) Given that 1 and 2 are zeros of the denominator,...
-
The second law of thermodynamics states that (a) The energy change of a system undergoing any reversible process is zero (b) It is not possible to transfer heat from a lower temperature to a higher...
-
LRF Company's budgeted sales and direct materials purchases are as follows. LRF's sales are 40% cash and 60% credit. Credit sales are collected 10% in the month of sale, 50% in the month following...
-
Ethnocentrism is the tendency of people toput their own culture at the center, and to use their culturalstandards to judge the behavior and beliefs of people of differentcultures. People who are...
-
Joseph and Diane Smith 1580 West Street Chatham, VA 24531 Joseph and Diane are both 35 and have no dependents. If your clients receive a refund, they want the full amount refunded to them. Diane is...
-
The cash records and bank statement for the month of July for Ravine Incorporated are shown below. RAVINE INCORPORATED Cash Account Records July 1 , 2 0 2 4 , to July 3 1 , 2 0 2 4 Cash Balance July...
-
These are four sets of cash flows: a A single \(\$ 1000\) cash inflow at the end of year 5 . b A series of \(\$ 2500\) cash inflows at the end of years \(1,2,3,4\) and 5 . c A cash inflow of \(\$...
-
Solve the linear system \(\mathbf{A x}=\mathbf{b}\) by using a. The inverse of the coefficient matrix. b. 1 The "\" operator in MATLAB. \(\mathbf{A}=\left[\begin{array}{cccc}3 & 2 & 0 & 0 \\...
-
In contrast to our analysis in Section 5.4.3, Carlton and Loury (1980) suggest that a Pigouvian tax alone will not lead to a long run social optimum for competitive polluting firms. Using their...
-
Develop a data type for generating pseudo-random numbers. That is, convert StdRandom to a data type. Instead of using Math . random (), base your data type on a linear congruential generator. This...
-
Repeat Problem 1 assuming the fluid to be helium instead of air. Problem 1 A shock wave advances into stagnant air at a pressure of $100 \mathrm{kPa}$ and $300 \mathrm{~K}$. If the static pressure...
-
Transforming r to z 13.109 If r=-.46, what is z? 13.110 If r= .33, what is z?
-
Hotel Majestic is interested in estimating fixed and variable costs so that the company can make more accurate projections of costs and profit. The hotel is in a resort area that is particularly busy...
-
Why are the chilled water lines always wrapped with vapor barrier jackets?
-
A room contains air at 20oC and 98 kPa at a relative humidity of 85 percent. Determine (a) The partial pressure of dry air. (b) The specific humidity of the air. (c) The enthalpy per unit mass of dry...
-
Nitrogen enters a converging-diverging nozzle at 620 kPa and 310 K with a negligible velocity, and it experiences a normal shock at a location where the Mach number is Ma = 3.0. Calculate the...
-
With reference to Exercise 11.65, test the null hypothesis \(\beta=1.5\) against the alternative hypothesis \(\beta>1.5\) at the 0.01 level of significance. Data From Exercise 11.65 11.65 The data...
-
The data below pertains to the number of hours a laptop has been charged for and the number of hours of backup provided by the battery. (a) Use the first set of expressions on page 330, involving...
-
With reference to Exercise 11.65, construct a \(99 \%\) confidence interval for \(\alpha\).
Study smarter with the SolutionInn App