Power Plant Engineering

Chapter 7 : Fuels and Combustion
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217
7.1 Introduction
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217
7.2 Coal
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217
7.3 Coal Analysis
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219
7.3.1 Proximate Analysis
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219
7.3.2 Ultimate Analysis
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219
7.3.3 Heating Value
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219
(xii)

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7.4 Coal Firing
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221
7.5 Mechanical Stokers
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222
7.6 Pulverized-Coal Firing
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224
7.7 Cyclone Furnaces
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230
Chapter 8 : Diesel Power Plant
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234
8.1 Introduction
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234
8.2 Operating Principle
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236
8.3 Basic Types of IC Engines
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236
8.3.1 Two-Stroke, Spark Ignition Gas Engines/Petrol Engines
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237
8.3.2 Diesel Engines/Heavy Oil Engines
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237
8.3.3 Duel Fuel Engines
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237
8.3.4 High Compression Gas Engines
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238
8.4 Advantage of Diesel Power Plant
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238
8.5 Disadvantage of Diesel Power Plant
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238
8.6 Application of Diesel Power Plant
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238
8.7 General Layout of Diesel Power Plant
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239
8.8 Performance of Diesel Engine
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239
8.8.1 Indicated Mean Effective Pressure (IMEP)
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239
8.8.2 Indicated Hourse Power (IHP)
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239
8.8.3 Brake Horse Power (B.H.P.)
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240
8.8.4 Frictional Horse Power (F.H.P.)
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240
8.8.5 Indicated Thermal Efficiency
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240
8.8.6 Brake Thermal Efficiency (Overall Efficiency)
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240
8.8.7 Mechanical Efficiency
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240
8.9 Fuel System of Diesel Power Plant
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241
8.10 Lubrication System of Diesel Power Plant
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242
8.10.1 Liquid Lubicricants or Wet Sump Lubrication System
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244
8.10.2 Solid Lubricants or Dry Sump Lubrication System
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246
8.10.3 Mist Lubrication System
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246
8.11 Air Intakes and Admission System of Diesel Power Plant
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246
8.12 Supercharging System of Diesel Power Plant
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247
8.12.1 Types of Supercharger
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248
8.12.2 Advantages of Supercharging
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249
8.13 Exhaust System of Diesel Power Plant
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249
8.14 Cooling System of Diesel Power Plant
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250
8.14.1 Open Cooling System
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251
8.14.2 Natural Circulation System
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251
(xiii)

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8.14.3 Forced Circulation Cooling System
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251
8.15 Diesel Plant Operation
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252
8.16 Efficiency of Diesel Power Plant
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253
8.17 Heat Balance Sheet
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255