How much energy do we get by burning one kilogram of coal ? Coal fired power plants operate on the modified Rankine thermodynamic cycle.The efficiency is dictated by the parameters of this thermodynamic cycle. For 10–20% contribution, the power factor is 36.5% and drops to 19.6% at 50 to 90% contribution. [37], Countries with installed and/or developing geothermal power projects.

Part of Springer Nature. 2010) or, alternatively, the steam gets re-injected to the reservoir through re-injection well.

M. El Haj Assad. Version 2015.6.30. This matches the goals of the EU Strategic Energy Technology (EU-SET) plan by ultimately reducing the cost of key renewable technologies and increasing the security of the energy system. 8 decreases with an increase in the total contribution to the demand, for which there is a decrease from 20 to 7.5 at 10 and 80% contribution, respectively. The condenser should operate at low vacuum pressure to maintain a large enthalpy difference across the expansion process of the steam turbine, hence resulting in a higher power output. The power factor in Fig. However, the power factor remains constant at 7.5 over the 50 to 80% contribution range. Google Scholar. El Haj Assad, M., Bani-Hani, E. & Khalil, M. Performance of geothermal power plants (single, dual, and binary) to compensate for LHC-CERN power consumption: comparative study. For the dual flash power plant, Fig.

SAM Help. In fact, it is similar to the single flash power plant except that it produces more steam due to the use of two separators. No other parameters are required for the performance model of SAM. 2013;24:325–42. How efficient is the energy conversion process in a thermal power plant ?

Energy Environ Sci. Annual energy production in kWh at 80% contribution for three different power plants. Due to the importance of ORC, recently many investigations have been conducted to evaluate the performance of the ORC power plant by using different mixtures of the secondary fluid in the Rankine cycle part of the geothermal power plant (Bao and Zhao 2013; Garg et al. Ameri M, Amanpour S. Energy and exergy analysis and optimization of a double flash power plant for Meshkin Shahr region, World Renewable Energy Congress 2011, Sweden 8–13 May 2011, Linköping, Sweden. The main advantages of ORC are that it operates at a low temperature which results in low-mechanical stresses on the turbine, along with the fact that there is no erosion of the turbine blades due to the absence of moisture during the vapor expansion in the turbine. Single flash power plant (Valdimarsson 2011). Detailed procedure on how the System Advisor Model works is given in the SAM Help which can be found online. The conversion of geothermal energy into electrical energy is neither a cheap nor a simple process so there is a real need to use the available energy in an efficient way. Using the setting and requirements of the CERN LHC in Geneva, Switzerland, the study uses System Advisor Model software to analyze the implementation of the different plant types.

2002;83:37–46. © 2020 Springer Nature Switzerland AG. The surrounding conditions such as the ambient temperature and humidity are important in analyzing the power production. Geothermics. SAM first estimates the electric power production (performance model) and then estimates the energy cost based on a performance model, or more precisely, on a combination of performance and finance models. The efficiency of geothermal utilisation largely depends on the behaviour of fluids that transfer heat between the geosphere and the engineered components of a power plant. Negawo (2016) reviewed some geomaterial aspects of geothermal energy to show and discuss the role of geomaterials on the utilization of geothermal energy. 2014;31:835–45.

2008; McKendry 2002). Figures 16, 17, 18 show the great cost reduction that can be attained by using a binary power plant at 80% geothermal contribution to the total demand.

The future of geothermal energy, MIT, Technical Report; 2006.

The more important metrics are the power output (the amount of power the plant can produce) and the cost of the supplied energy. 11 decreases when increasing the total contribution to the demand with a similar trend as the single flash power plant, for which there is a decrease from 31 to 16.8 at 10 and 80% contribution, respectively.

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