General Description: Four power plants with a total installed capacity of over 2000 MW are owned by one of Bahrain's lar

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General Description Four Power Plants With A Total Installed Capacity Of Over 2000 Mw Are Owned By One Of Bahrain S Lar 1 (221.33 KiB) Viewed 47 times

General Description Four Power Plants With A Total Installed Capacity Of Over 2000 Mw Are Owned By One Of Bahrain S Lar 2 (168.81 KiB) Viewed 47 times

General Description Four Power Plants With A Total Installed Capacity Of Over 2000 Mw Are Owned By One Of Bahrain S Lar 3 (94.53 KiB) Viewed 47 times

General Description: Four power plants with a total installed capacity of over 2000 MW are owned by one of Bahrain's largest power producing companies. One of the power plants uses a mixed cycle with five gas turbines and one steam turbine. They recently upgraded the steam turbine unit by installing a new feedwater heater, and they want to explore how it affects the thermal efficiency of the entire plant. The steam turbine was last upgraded a decade ago, and the manager must present the new steam turbine system and demonstrate that the plant update was successful with all relevant information. Your Role: Consider any appropriate and relevant power plant of this type in Bahrain, and conduct some research on many technical characteristics available for this analysis. After graduating from Bahrain Polytechnic with a degree in Mechanical Engineering, you will be given the opportunity to work as an engineer for this company. Your line manager will assign this case study to you as a trainee to analyze the scenario of upgrading the existing system to a new cogeneration power plant that generates power using a combination of the Rankine cycle and the Brayton cycle. It would be really appreciated if you could provide a new design for the entire system in order to increase the plant's efficiency. The following are the two stages of analysis in this case study: 1. You must analyze and enhance the existing power plant by adding feedwater pumps and feedwater heaters; and 2. You must design a cogeneration power plant by upgrading the above system designed in stage-1 and adding a Brayton cycle; Technical information given: The following information was provided by the responsible engineer of that power plant regarding the steam cycle part: m, tonnes per hour of superheated steam enters the high-pressure turbine at T,°C and P, Bar, and is discharged isentropically until the pressure reaches P2 Bar. After exiting the high-pressure turbine, m2 tonnes per hour of steam is extracted to the open
feedwater heater, and the remaining steam flows to the low-pressure turbine, where it expands to P, Bar. At the condenser, the steam is totally condensed. The temperature at the condenser's outflow is the same as the saturation temperature at the same pressure. The liquid is compressed to P, Bar after passing through the condenser and then allowed to flow through the mixing preheater (a heat exchanger with efficiency n)where it is completely condensed. The preheated feed water will be fed into the heat exchanger through a second feed pump, where it will be heated and superheated to a temperature of T, °C. In the winter, the overall process heating demand is assumed to be 0 MW while this power plant's electricity demand is É MW. mi m2 Data to be taken for the analysis: Assume any value in the range provided in the following parameter against the parameter: Parameter Value range 10 to 15 (step of 1) 1.0 to 1.5 (step of 0.1) T 450 to 550 (step of 10) P 20 to 30 (step of 2) P2 4 to 6 (step of 0.5) P3 0.4 to 1.0 (step of 0.1) n 82% to 88% (step of 1) 0 1.2 MW to 2.2 MW (step of 0.2) E 5.5 MW to 6.5 MW (step of 0.25) 5. Schematic of the power plant: An excellent and high-quality schematic must be presented, with all necessary and appropriate information pertinent to the analysis' content. Any diagramming and vector graphics application, such as Microsoft Visio, can be used. (Maximum 1 page)
6. Property diagrams: Clear diagrams based on various properties such as pressure-volume and temperature-entropy should be provided. These diagrams should incorporate all of the necessary and relevant data. (Maximum 1 Page each) 7. Results and discussion: This section of the report must include all of the project's findings, including all of the results, specific methodology, calculations for various parameters in every step of the steam cycle, including the quantity of feed water required in the cycle, the combined cycle plant's utilization factor, and overall cycle thermal efficiency, designs, and so on (describe if the findings support the original objectives). Discuss whether the cycle's thermal efficiency is adequate, as well as the steam cycle's overall operation. (Maximum of 800 words or three pages)