Journal
APPLIED THERMAL ENGINEERING
Volume 185, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2020.116447
Keywords
Supercritical carbon dioxide; sCO(2); Power generation; Turbomachinery; Heat exchangers; Control systems; Applications
Funding
- European Union [680599 -I-ThERM, 814985 SCARABEUS]
- Engineering and Physical Sciences Research Council (EPSRC) of the UK [EP/P004636/1 -OPTEMIN, EP/P009131/1 -NextORC, EP/K011820/1 -RCUK CSEF]
Ask authors/readers for more resources
sCO(2) offers high thermal efficiencies and compact physical footprint, but faces technical challenges and operational issues related to ambient conditions and heat availability.
Thermal-power cycles operating with supercritical carbon dioxide (sCO(2)) could have a significant role in future power generation systems with applications including fossil fuel, nuclear power, concentrated-solar power, and waste-heat recovery. The use of sCO(2) as a working fluid offers potential benefits including high thermal efficiencies using heat-source temperatures ranging between approximately 350 degrees C and 800 degrees C, a simple and compact physical footprint, and good operational flexibility, which could realise lower levelised costs of electricity compared to existing technologies. However, there remain technical challenges to overcome that relate to the design and operation of the turbomachinery components and heat exchangers, material selection considering the high operating temperatures and pressures, in addition to characterising the behaviour of supercritical CO2. Moreover, the sensitivity of the cycle to the ambient conditions, alongside the variable nature of heat availability in target applications, introduce challenges related to the optimal operation and control. The aim of this paper is to provide a review of the current state-of-the-art of sCO(2) power generation systems, with a focus on technical and operational issues. Following an overview of the historical background and thermodynamic aspects, emphasis is placed on discussing the current research and development status in the areas of turbomachinery, heat exchangers, materials and control system design, with priority given to experimental prototypes. Developments and current challenges within the key application areas are summarised and future research trends are identified.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available