# tailieunhanh - Lecture Companion site to accompany thermodynamics: An engineering approach (7/e): Chapter 10 - Yunus Çengel, Michael A. Boles

## Chapter 10 - Vapor and combined power cycles. The objectives of Chapter 10 are to: Analyze vapor power cycles in which the working fluid is alternately vaporized and condensed, analyze power generation coupled with process heating called cogeneration, investigate ways to modify the basic Rankine vapor power cycle to increase the cycle thermal efficiency. | Chapter 10 Vapor and Combined Power Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 7th edition by Yunus A. Çengel and Michael A. Boles Overview of a steam power plant Photo courtesy of Progress Energy Carolinas, Inc. We consider power cycles where the working fluid undergoes a phase change. The best example of this cycle is the steam power cycle where water (steam) is the working fluid. For more information and animations illustrating this topic visit the Animation Library developed by Professor S. Bhattacharjee, San Diego State University, at this link. Carnot Vapor Cycle The heat engine may be composed of the following components. The working fluid, steam (water), undergoes a thermodynamic cycle from 1-2-3-4-1. The cycle is shown on the following T-s diagram. The thermal efficiency of this cycle is given as Note the effect of TH and TL on th, Carnot. The larger | Chapter 10 Vapor and Combined Power Cycles Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 7th edition by Yunus A. Çengel and Michael A. Boles Overview of a steam power plant Photo courtesy of Progress Energy Carolinas, Inc. We consider power cycles where the working fluid undergoes a phase change. The best example of this cycle is the steam power cycle where water (steam) is the working fluid. For more information and animations illustrating this topic visit the Animation Library developed by Professor S. Bhattacharjee, San Diego State University, at this link. Carnot Vapor Cycle The heat engine may be composed of the following components. The working fluid, steam (water), undergoes a thermodynamic cycle from 1-2-3-4-1. The cycle is shown on the following T-s diagram. The thermal efficiency of this cycle is given as Note the effect of TH and TL on th, Carnot. The larger the TH the larger the th, Carnot The smaller the TL the larger the th, Carnot To increase the thermal efficiency in any power cycle, we try to increase the maximum temperature at which heat is added. Reasons why the Carnot cycle is not used: Pumping process 1-2 requires the pumping of a mixture of saturated liquid and saturated vapor at state 1 and the delivery of a saturated liquid at state 2. To superheat the steam to take advantage of a higher temperature, elaborate controls are required to keep TH constant while the steam expands and does work. To resolve the difficulties associated with the Carnot cycle, the Rankine cycle was devised. The steam power plant is composed of several distinct componets. Steam generator or boiler Turbine and electric generator Condenser and cooling water system Pumps Steam generator or boiler. Down comer and riser tubes Pulverized Coal and air injectors Heat exchangers for superheating, reheating, and water economizers Air preheater .

TÀI LIỆU LIÊN QUAN
1    68    0
6    70    0
14    71    2
28    40    1
17    55    3
168    70    0
52    95    0
32    83    0
61    82    0
34    73    0
TÀI LIỆU XEM NHIỀU
8    460267    47
14    13027    40
13    9338    488
3    8286    104
14    8014    417
16    6869    400
8    6850    2146
249    5986    984
7    4710    3
17    4642    195
TỪ KHÓA LIÊN QUAN
TÀI LIỆU MỚI ĐĂNG
40    119    0    21-03-2023
25    149    0    21-03-2023
12    135    0    21-03-2023
7    118    2    21-03-2023
10    111    0    21-03-2023
29    127    0    21-03-2023
14    123    0    21-03-2023
6    115    0    21-03-2023
11    129    0    21-03-2023
40    106    0    21-03-2023
TÀI LIỆU HOT
8    6850    2146
112    2564    1122
249    5986    984
561    1901    575
152    2233    548
62    2040    496
122    2663    491
13    9338    488
35    2826    437
14    8014    417
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.