Concentrating Solar Power Essay Example | Topics and Well Written Essays - 2500 words

Concentrating Solar Power - Essay Example The Supercritical CO2 Brayton cycle is being investigated on how it produces its energy. The cycle is ideal because it is easy to be transported from one location to another and it can also be effective in reducing costs because it uses very technical turbo machineries. Its ability to achieve efficiency is brought by the manner in which the supercritical CO2 behaves when it is near critical points. The high power density that the supercritical CO2 manages to achieve is the composition of the fluid that it has in the turbo machinery is of high density too, an approximate of 60% the water density at the inlet of the compressor (Ma & Turchi, 2011). Investigations for the supercritical CO2 cycle is being done Sandia and its contractor, Baarber Nicholas Inc. because of the cycle has a high efficiency in temperatures between 400 C and 750 C. the investigation is being done in phases of a development program in the DOE Office of Nuclear Energy and Sandia National Labs. The main objective of the investigation is to realize the technology impact s of the Supercritical CO2 cycle. The first phase which is also called the first loop of the investigation is a compression loop that will be done using motor to run the radial Supercritical CO2 compressor. The objective of this phase of the investigation will be: The type of technology that will be required to bear the weight, technology for sealing, bear gas-foil and how to counter the rotor wind age losses which are required for the cycle to be able to reach its effectiveness and how it reduces the costs which are its main aims. The second phase of the investigation called the second loop that has been designed is a megawatt heater-class closed Superscript CO2 Brayton cycle. This process is called the ‘re-compression’. In this phase the cycle will show how it will be used in sources of

Holocaust-WW2 Related Events (American History) Research Paper

Holocaust-WW2 Related Events (American History) - Research Paper Example They did not have any proper policy to run such a huge rescue operation. Moreover, it was really difficult for the refugees to get into the United States as the refugee policy of the country was such that refugees were unable to get entry visas. Such a policy was made by the US because of anti-Semitism, isolationism, economic depression and xenophobia. (THE UNITED STATES AND THE HOLOCAUST, n.d.) When the Jews in Europe were getting victimized by the Nazis, American Jews were not able to stand beside their European counter part. This is because most of the American Jews were settled in the country for a very short period of time. They did not have enough power to stand up against American government as there was hardly any unity among the American Jews. No major American Jewish community was there in between 1930 to 1940, though there were many small ones. The Jewish Labor Committee was ready to talk to the Nazi government regarding the holocaust. American Jewish Committee which was mainly formed of Americanized German Jews decided to deal the issue politically and quietly. There was not any Jewish group which could raise its voice against the government. There was no channel through which the president of American Jewish Congress, Rabbi Stephen S. Wise could contact the president Roosevelt; and the American Jews were not ready to help him in this regard. These were the main reasons behind the inability of the American Jewish to pressurize the Roosevelt administration (American Jewry and the Holocaust,