Axial turbine flow path design for concentrated solar power plants operating with CO2 blends
نویسندگان
چکیده
The utilisation of certain blends based on supercritical CO2 (sCO2), namely CO2/TiCl4, CO2/C6 F6 and CO2/SO2, have been found to be promising for enhancing the performance power cycles Concentrated Solar Power (CSP) applications; allowing up a 6% enhancement in cycle efficiency with respect simple recuperated cycle, depending upon nature used blend configuration choice. This paper presents an investigation impact adopting these sCO2-based flow path design multi-stage axial turbine whilst accounting aerodynamic, mechanical rotordynamic considerations. includes assessing sensitivity selected working fluid imposed optimal conditions. Ultimately, this study aims provide first indication that high-efficiency can achieved large-scale operating non-conventional fluids producing excess 120 MW. To achieve aim, mean-line aerodynamic is integrated constraints, specified industrial experience, ensure technically feasible solutions maximum efficiency. Different designs produced three sCO2 under different boundary Specifically, paths obtained configurations at five molar fractions two inlet pressure temperature levels 250 & 350 bar 550 700 °C respectively. A total-to-total 92% was achieved, which considered future plants. highest efficiencies are large number stages, corresponding reduced hub diameters due need fixed synchronous rotational speed. stages contrary existing designs, but it increase from 4 14 by around 5%. preliminary cost analysis results, were financially compared small stages.
منابع مشابه
Optimisation of Storage for Concentrated Solar Power Plants
The proliferation of non-scheduled generation from renewable electrical energy sources such concentrated solar power (CSP) presents a need for enabling scheduled generation by incorporating energy storage; either via directly coupled Thermal Energy Storage (TES) or Electrical Storage Systems (ESS) distributed within the electrical network or grid. The challenges for 100% renewable energy genera...
متن کاملOptimal design of axial hydro turbine for micro hydropower plants
In our country we have enormous low head potation flows in agricultures and aquacultures with almost fix flow rates that can be used as micro hydro power plants for producing energy. But the main problem is the high capital price per kW. Therefore there is needed to design a simple machine with a good runner for covering the various potential flows. In this paper an axial hydro turbine has desi...
متن کاملEnvironomic optimal design of power plants with CO2 capture
Life cycle impact assessment indicators are integrated for studying the process integration of renewable resources and CO2 capture and storage (CCS) in power plants. Besides the expected reduction in global warming potential (GWP), CCS induces energy and cost penalties. This paper presents a systematicmultiobjective optimisation framework for the optimal design of power plants with CO2 capture ...
متن کاملEvaluation of solar-chimney power plants with multiple-angle collectors
Solar chimney power plants are plants based on solar thermal power including three parts of collector, chimney and turbine, which is able to produce electrical energy. One of the effective parameters in increasing the power production is the collector angles versus horizon. In the present study, a numerical analysis of a solar chimney power plant for different angles of the collector (divergent...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Thermal Engineering
سال: 2023
ISSN: ['1873-5606', '1359-4311']
DOI: https://doi.org/10.1016/j.applthermaleng.2023.120612