Abstract

New and innovative solutions are being developed to overcome the challenges of detrimental effects that the traditional energy systems cause. This means that sustainable methods are implemented to do so, noting that when such developments are taken into consideration and are studied, this leads to a significant drop in the cost of renewable energy systems. In this work, a hybrid system consisting of a single flash steam geothermal power plant and a solar thermal system using a parabolic trough collector (PTC) is studied. Based on the available works in literature, the required design materials and modeling equations are chosen and discussed. The heat transfer fluid (HTF) as water is chosen as the working fluid for the PTC due to its low cost and high specific heat capacity. The calculations are carried out for the PTC on a specific day, time and location, and the simulations for the geothermal power plant (GPP) are carried out using System Advisor Model (SAM) software, assuming a specific increase in the temperature of the geofluid due to the additional heat transfer from the HTF of the PTC. The power plant output is 20 MW powered by four production wells. The results show that the energy production is ~15 GWh in January, which is the highest during the year due to the required energy demand for electricity consumption and district heating. Moreover, a mini review of the mathematical modeling of PTC and single flash geothermal power plant is presented.

中文翻译：

---

利用地热能的可再生混合能源系统：太阳能热电地热混合发电

摘要

正在开发新的创新解决方案，以克服传统能源系统造成的有害影响的挑战。这意味着要采用可持续的方法来做到这一点，并指出，当考虑并研究这些发展时，这将导致可再生能源系统成本的大幅下降。在这项工作中，研究了一个混合系统，该系统由单个闪蒸蒸汽地热发电厂和使用抛物线槽式集热器（PTC）的太阳能热系统组成。基于现有文献，选择并讨论了所需的设计材料和建模方程式。由于水的传热流体（HTF）的低成本和高比热容量，因此选择它作为PTC的工作流体。计算是在特定日期针对PTC进行的，时间和位置，并使用System Advisor Model（SAM）软件对地热发电厂（GPP）进行仿真，假设由于PTC的HTF产生的额外热量传递，导致地流体的温度有特定的升高。该发电厂的输出为20兆瓦，由四个生产井提供动力。结果表明，由于电力消耗和区域供热需要能源需求，一月份的能源产量约为15 GWh。此外，本文对PTC和单闪式地热发电厂的数学模型进行了简要回顾。假设由于PTC的HTF产生了额外的热量传递，导致流体的温度发生了特定的上升。该发电厂的输出为20兆瓦，由四个生产井提供动力。结果表明，由于电力消耗和区域供热需要能源需求，一月份的能源产量约为15 GWh。此外，本文对PTC和单闪式地热发电厂的数学模型进行了简要回顾。假设由于PTC的HTF产生了额外的热量传递，导致流体的温度发生了特定的上升。该发电厂的输出为20兆瓦，由四个生产井提供动力。结果表明，由于电力消耗和区域供热需要能源需求，一月份的能源产量约为15 GWh。此外，本文对PTC和单闪式地热发电厂的数学模型进行了简要回顾。