Power plant schematic

Figure 43.24 shows a schematic of a steam-fluidized bed dryer with combined generation of power and heat. In a conventional coal-fired power plant, up to two thirds of fuel energy is lost since the latent heat of turbine exhaust steam is dissipated unused to the cooling water because of its low temperature level. In DWT process, the latent heat can be used to dry the input coal. Figure 43.24 shows a coal-fired power plant schematic with a circulating fiuid-bed... 

Figure A1.4 (a) Modem combined cycle power plant schematic and (b) T—s diagram. Partially based on data from MHI and Siemens. 

Schematic view of a nuclear power plant. The energy source is the core, in which a fission reaction occurs. The rest of the plant is designed to transfer the energy released during fission and convert it into electricity.

Figure 13.9. Schematic diagram of a virtual power plant (Vaillant, 2007).

The cycles considered so far in this chapter are power cycles. However, there are applications in which Rankine cycles are used for the combined supply of power and process heat. The heat may be used as process steam for industrial processes, or steam to heat water for central or district heating. This type of combined heat and power plant is called cogeneration. A schematic cogeneration plant is illustrated in Fig. 5.19. A different schematic cogeneration plant is illustrated in Fig. 5.20. 

Fig. 6. Simplified schematic layout of a classic geothermal power plant. The main escape routes for steam are from the cooling tower and gas ejectors, which are located just downstream from the turbine.

Fig. 3. Simplified schematics of condensing cycle-type power plant. (Modified from Hudson 1998).

Figure 94.1 Schematic of nuclear power plant. Drawing by Rae Dejur.

Figure 15.6. Schematic illustration of a supercritical C02/fly ash plant integrated with a coal-fired power plant.

A schematic of a monolith catalyst is shown in Fig. 19-18a. In cases where pressure drop is limiting, such as for CO oxidation in cogeneration power plant exhausts, monolith catalyst panels may be stacked to form a thin (3- to 4-in-thick) wall. The other dimensions of the wall can be on the order of 35 x 40 ft. CO conversion is over 90 percent with a pressure drop across the catalyst of 1.5 in of water. Alternatively, the monolith may be used as a catalyst and filter, as is the case for a diesel particulate filter. In this case, monolith channels are blocked and the exhaust gases from a diesel truck are forced through the walls (Fig. 19-18b). The filter is a critical component in a continuous regenerable trap. NO in the exhaust... 

Figure 7.95 shows a schematic of a typical combined-cycle power plant. High temperatures produced by GTs cause nitrogen and oxygen in the combustion air to combine to form nitrogen oxide gases NO. The NO levels of around 200 ppm were produced in each GT train. 

Figure 7.95 Schematic of a typical combined-cycle power plant...

A schematic diagram of the process for scrubbing sulfur dioxide from stack gases in power plants. 

Figure 11.5. Schematic representation of an NGCC power plant.

Most commercial nuclear power plants in the United States are light water reactors, moderated and cooled by ordinary water. Figure 26-12 is a schematic diagram of a light water reactor plant. The reactor core at the left replaces the furnace in which coal, oil, or natural gas is burned in a fossil fuel plant. Such a fission reactor consists of five main components (1) fuel, (2) moderator, (3) control rods, (4) cooling system, and (5) shielding. 

Direct steam is also referred to as dry steam. As the term implies, steam is routed directly to the turbines, thus eliminating the need for the boilers used by conventional natural gas and coal power plants. Fig. 4 shows a schematic of a direct steam cycle power... 

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