The present study aims to investigate the thermodynamic and financial aspect of concentrated solar power (CSP) plant hybridized with biomass-based organic Rankine cycle (ORC), thermal energy storage (TES), hot springs and CO₂ capture systems. The organic working fluids namely R123, R235fa, D4 and MDM are selected for designing the hybrid system at different operating conditions. The nominal power capacities of the CSP and biomass ORC plants are 1.3 MW and 730 kW respectively. Additionally, a parametric study has been carried out to understand the influencing parameters that affect the system’s performance. From the results, it is revealed that the biomass ORC plant with a hot spring system alone can develop a power of 720 and 640 kW for D4 and MDM respectively. Furthermore, the power generation can be increased with addition of TES in the CSP plant. From the economic point of view, the hybrid system with special focus on CO₂ capture could be very profitable if the levelized cost of electricity (LCOE) is fixed at 0.24$/kWh. In this scenario, the payback period is 8 years with an internal rate of return (IRR) more than 8%. Therefore, the hybrid system is thermodynamically and financially attractive for dispatchable electricity.

中文翻译：

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与基于生物质的有机朗肯循环，热能储存，温泉和CO ₂捕集系统混合的集中式太阳能发电厂的热力学和财务评估

本研究旨在研究与基于生物质的有机朗肯循环（ORC），热能储存（TES），温泉和CO ₂混合的太阳能集中发电站（CSP）的热力学和财务状况。捕获系统。选择有机工作流体，即R123，R235fa，D4和MDM，以在不同的工作条件下设计混合动力系统。CSP和生物质ORC装置的标称功率容量分别为1.3 MW和730 kW。此外，已经进行了参数研究，以了解影响系统性能的影响参数。从结果可以看出，仅带有温泉系统的生物质ORC装置可分别为D4和MDM产生720 kW和640 kW的功率。此外，在CSP工厂中添加TES可以增加发电量。从经济角度来看，特别关注CO ₂的混合动力系统如果将平均电费（LCOE）固定为0.24 $ / kWh，则捕捞将非常有利可图。在这种情况下，投资回收期为8年，内部收益率（IRR）超过8％。因此，混合动力系统对于可调度电力具有热力学和经济上的吸引力。