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題名 | 地熱發電系統之研析=Study of Geothermal Power Systems |
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作 者 | 馬小康; 謝瓊葶; 楊柏俊; | 書刊名 | 石油季刊 |
卷期 | 52:1 2016.03[民105.03] |
頁次 | 頁63-74 |
分類號 | 448.168 |
關鍵詞 | 地熱發電系統; 雙循環發電系統; 單閃式發電系統; 熱電材料; 熱電發電模組; Geothermal power plant; Binary; Single-flash; Thermoelectric material; Thermoelectric module; |
語文 | 中文(Chinese) |
中文摘要 | 本研究係針對台灣可能運用之地熱發電單閃系統及雙循環系統作一研析,此外亦針對可運用至地熱發電之熱電發電模組作一介紹。在單閃系統及雙循環系統方面使用EES (Engineering Equation Solver) 建立模型,模擬各種操作參數的影響,包括熱交換器面積、渦輪機的入口及出口溫度、冷凝器的效能等,此模型亦可分析1MW 地熱發電場所需的生產井條件,並與有實際運轉的地熱電廠資料作驗證。在熱電發電模組,我們設計出一個應用於地熱的熱電模組,並且通入不同溫度差之冷熱水以量測其性能,並利用Ansys Workbench 15.0 軟體模擬出熱電系統的發電功率,當熱電片冷熱端溫度達到100°C 時,其發電量可以達到2531.25W/m^2,其效率大約為4~5%,其結果和實驗比較誤差在5%以內。 |
英文摘要 | Taiwan is a country with a lack of fossil fuel resources, but has rich geothermal energy in the Pacific Ring of Fire band. The development of geothermal power can be used as the basic load power generation. In terms of Taiwan’s geographical environment and steam conditions, the flash steam system and the binary system are regarded as two general types of geothermal power plants suitabe for the future development. In this study, an EES (Engineering Equation Solver) model is built to simulate the effect of operating parameters, including the surface area of a heat exchanger, the inlet/outlet temperatures of turbine/ORC, and the capability of the condenser for a geothermal power plant. Also, the model can be used to estimate the required amount of the geothermal fluid of the production well for the 1MW geothermal power plant. The actual data from the geothermal power plants are collected to verify the simulated ones. In addition, thermoelectric materials have become popular recently due to their applications in energy recovery from the environment. In this study, a thermoelectric power module is used for the power generation from the geothermal system with different hot and cold fluid temperatures. The software of Ansys Workbench 15.0 is used to simulate the power generation of a thermoelectric power module with the error under 5%. The electricity of a thermoelectric power module can generate around 2531.25W/m^2 with the thermal efficiency of 4~5% when the temperature difference of the hot and cold fluid reaches 100°C. This additional power generation from a thermoelectric power module may help the development of the geothermal power system to recover waste energy. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。