Please give me detailed score for this essay. Thanks!
geothermal power plant For electricityThe diagram below shows how geothermal energy is used to produce electricity. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.My answer:
The diagram illustrates the process of geothermal power plant taking advantage of subterranean heat to generate electricity. Generally, the electricity manufacturing comprises a total of 5 procedural steps. Each of them will be specifically stated and compared whenever possible regarding from the cold water input to the electricity outcome as follows.
Overall, there are five stages in the process, beginning with the cold water pumping down to the well farther underground. What proceeds is the fluid is injected into the geothermal basin, next into the production wells and pumped up to the condenser. The final course is that the output from the condenser operates turbine and generator for electricity production.
Taking a look at the first three stages of the process, there are two wells drilled at the same depth of 4.5 kilometres that allow water on the surface to access the geothermal zone underground. First, cold water is pumped from a tank on Earth down into the injection well. Second, after entering geothermal strata, cold water permeates hot rocks and absorbs the thermal heat on the way through. Third, the production well receives the scalding hot water and pumped it up into the condenser at 4,5 km above.
The last two steps are carried out on the Earth's surface. Initially, when the geothermal now-heated water enters the condenser, it evaporates and releases some steam through a pipe to the last chamber. In this chamber, the vapour courses into the turbine and powers it to rotate. Sequentially, the generator which is activated by the turbine generates and transmits electricity into the national grid.