By Rolf Kehlhofer
With this 3rd variation, overseas professional Rolf Kehlhofer leads a crew of eminent engineers for the lengthy awaited replace of the "bible" for combined-cycle plants.
Combined-Cycle gasoline & Steam Turbine strength vegetation, third version, is a finished assessment of the combined-cycle energy plant from a thermodynamic, technical, and financial point of view. This re-creation supplies readers the most recent technological advancements and sensible examples from latest, state of the art combined-cycle crops. either training engineers and engineering scholars will locate this ebook the definitive paintings on combined-cycle energy crops.
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Additional info for Combined-cycle gas & steam turbine power plants
This definition enables corrections to be made for the effects of part-load operation, so that different projects can be analyzed on a comparable basis. For fuel, operation, and maintenance costs, no escalation rates have been applied to calculate the cost of electricity. For modeling purposes, the cost of electricity can be calculated by using the equivalent utilization time and the fuel price as variables. In a deregulated power generation market, power stations do not sell their electricity based on an average cost of electricity basis, but rather on the basis of demand and supply.
For example, for a gas turbine with single stage combustion at constant turbine inlet temperature, a very high-pressure ratio attains a higher efficiency than a moderate pressure ratio. However, the efficiency of the combined-cycle plant with the second machine is normally better because the steam turbine operates far more efficiently with the higher exhaust gas temperature and produces a greater output. Figure 4-3 shows that in a simple-cycle (GT) power plant, the efficiency is driven by the pressure ratio.
Combined cycles with a smaller output can, of course, be built, but they are less interesting for pure power generation because the specific costs increase very fast at lower rated output. , district heating or industrial processes) can make sense. 18 Combined-Cycle Gas & Steam Turbine Power Plants Comparison of the power plant prices Table 3-1 shows the specific price of the various types of power plants considered. These prices are valid for a power plant built under a turnkey contract with a fixed, lump-sum price.
Combined-cycle gas & steam turbine power plants by Rolf Kehlhofer