Consider an axial turbine stage consisting of a row of stator airfoils, followed by a row...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Consider an axial turbine stage consisting of a row of stator airfoils, followed by a row of rotor airfoils. Ignore any losses for this problem. The following information is given: At inlet to stator ("0"): Total temperature, Too = 1800 K Total pressure, Poo = 20 bars At exit from rotor ("2"): Normal Design (Co=C2, in both magnitude and direction) Blade speed U = 400 m/s (on mean-line), assumed constant on a 10000 RPM machine connected to the grid for power generation. Stage loading coefficient (y= Aho/U)=2.5 Stage flow coefficient = 1.0 Stage Reaction = 0.5 Axial speed is maintained constant. Use y=1.31 and R=287 J/kgK. (A) (20 points) Calculate all necessary quantities so that you can complete a table showing values of To, T, Po, P, Ma, C, Ce, W, We, a, at 0, 1, 1R (on relative frame), 2R (on relative frame), and 2, as appropriate. A starting table is provided in the same folder under Files. (B) Draw velocity triangles on a graph paper, indicating the velocity scale and labeling the vectors, C1, C2, W, W2, U. (C) Stage specific power output. (D) Show states 00, 0, 01, 1, 01R, 02, 2, 02R on a h-s diagram quantitatively (using EXCEL or something similar), using h_oo 2003.3 kJ/kg and arbitrarily taking s_oo as 0.00 kJ/kgK. (E) Calculate (1) the mean diameter, and (2) the ratio of annular area at 1 to that at 0, and (3) the ratio of annular area at 2 to that at 1. (F) If the stage has to produce 90MW of power, then calculate (1) the mass flow rate required, (2) hub and tip diameters at stations 0, 1 and 2. Consider an axial turbine stage consisting of a row of stator airfoils, followed by a row of rotor airfoils. Ignore any losses for this problem. The following information is given: At inlet to stator ("0"): Total temperature, Too = 1800 K Total pressure, Poo = 20 bars At exit from rotor ("2"): Normal Design (Co=C2, in both magnitude and direction) Blade speed U = 400 m/s (on mean-line), assumed constant on a 10000 RPM machine connected to the grid for power generation. Stage loading coefficient (y= Aho/U)=2.5 Stage flow coefficient = 1.0 Stage Reaction = 0.5 Axial speed is maintained constant. Use y=1.31 and R=287 J/kgK. (A) (20 points) Calculate all necessary quantities so that you can complete a table showing values of To, T, Po, P, Ma, C, Ce, W, We, a, at 0, 1, 1R (on relative frame), 2R (on relative frame), and 2, as appropriate. A starting table is provided in the same folder under Files. (B) Draw velocity triangles on a graph paper, indicating the velocity scale and labeling the vectors, C1, C2, W, W2, U. (C) Stage specific power output. (D) Show states 00, 0, 01, 1, 01R, 02, 2, 02R on a h-s diagram quantitatively (using EXCEL or something similar), using h_oo 2003.3 kJ/kg and arbitrarily taking s_oo as 0.00 kJ/kgK. (E) Calculate (1) the mean diameter, and (2) the ratio of annular area at 1 to that at 0, and (3) the ratio of annular area at 2 to that at 1. (F) If the stage has to produce 90MW of power, then calculate (1) the mass flow rate required, (2) hub and tip diameters at stations 0, 1 and 2.
Expert Answer:
Related Book For
Financial Reporting and Analysis
ISBN: 978-0078025679
6th edition
Authors: Flawrence Revsine, Daniel Collins, Bruce, Mittelstaedt, Leon
Posted Date:
Students also viewed these mechanical engineering questions
-
Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...
-
(i) Write down the linear program relaxation for the vertex cover problem and solve the linear program. [6 marks] (ii) Based on the solution of the linear program in (b)(i), derive an integer...
-
What is the output of the following program: #include using namespace std; void Push(int x[], int y[], int n) { int i = 0, j = n - 1; while (i
-
Write each phrase as a variable expression. Use x to represent "a number." 1. Negative eight plus a number 2. A number subtracted from twelve 3. Twice a number 4. The quotient of negative six and a...
-
Identify the methods of group decision making and give a brief description of each.
-
Two identical particles of inertia \(m\) collide elastically on a low-friction table. Calculate the kinetic energy of the system before and after the collision in the zero-momentum frames.
-
Assume that on January 1, 2008, Kimberly- Clark Corp. signs a 10-year non-cancelable lease agreement to lease a storage building from Sheffield Storage Company. The following information pertains to...
-
1 2 34 What is "SWOT analysis? How do you carry it for a technical educationalinstitute? What is corporate planning? Explain the process of corporate planning? Discuss the process of strategy...
-
What does "equal justice under law" mean to you?
-
Please put a timeline graph for ping an isurance risks for the recent 10 years. Explain a bit if possible. Please make sure to include the graph.
-
Say whether each of the following is a polynomial or not. If the function is a polynomial, rewrite it in standard form (in order from greatest exponent to smallest.). Then name your polynomial by...
-
Determining amounts for items omitted from income statement One item is omitted in each of the following four lists of income statement data. Determine the amounts of the missing items. Chase Company...
-
Identify existing organizational practices to facilitate development of individuals, enhancing their performance and role at the workplace, and supporting them to build a successful professional...
-
A polynomial f(x) with real coefficients and leading coefficient 1 has the given zero(s) and degree. Express f(x) as a product of linear and quadratic polynomi- als with real coefficients that are...
-
At a certain temperature, the equilibrium constant for the following chemical equation is 3.90. At this temperature, calculate the number of moles of NO2(g) that must be added to 2.88 mol of SO2(g)...
-
Explain the regulation of the secretions of the small intestine.
-
Hestor Companys records indicate the following information: Merchandise inventory, January 1, 2014 ..... $ 550,000 Purchases, January 1 through December 31, 2014 . 2,250,000 Sales, January 1 through...
-
On April 1, 2014, Mills Company acquired equipment for $125,000. The estimated useful life is six years, and the estimated residual value is $5,000. Mills estimates that the equipment can produce...
-
Following are the common-size balance sheets from four companies: Pfizer, Inc., a global research-driven pharmaceutical company; JCPenney, a national retailer; TimeWarner, a global media and...
-
List the most important three factors for you personally when deciding where to shop for clothes.
-
List all of the factors you can think of that people use when deciding where to shop for clothes.
-
What two stores do you think best fits your needs?
Study smarter with the SolutionInn App