Abstract
Clean energy complementary system can reduce environmental pollution effectively and is considered as a future energy development direction. In this paper, an innovative solar-nuclear thermally coupled power and desalination plant for electricity and freshwater productions is proposed. As solar power and nuclear power are combined, this multi-energy system is a clean energy system and basically has no emissions of soot, sulfur oxides, carbon dioxide, and nitrogen oxides. The operating behavior assessment results of the multi-energy system show that the power generation and freshwater production systems can operate synergistically. The electric power and corresponding efficiency of the multi-energy system are 290.7 MW and 38.2%, in which the solar proportion is about 38.1%. The daily freshwater production of the multi-energy system is 3761.3 t. The economic assessment results reveal that the levelized costs of electricity and freshwater of the multi-energy system are 0.361 yuan/(kWh) and 1.645 yuan/t. The environmental protection analysis results show that in contrast with a coal-fired system, the annual emission reductions of soot, sulfur oxides, carbon dioxide, and nitrogen oxides of the multi-energy system are 7350.94 t, 12,634.42 t, 513,034.14 t, and 11,945.28 t, revealing a significant environmental protection performance.
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Abbreviations
- c p :
-
constant-pressure specific heat capacity (J/(kg∙K))
- F cap :
-
capacity factor of power generation (−)
- FOMC :
-
annual fixed operating and maintenance costs of the solar energy block (yuan)
- k :
-
thermal conductivity (K∙m−1)
- k solar :
-
solar power capacity proportion (−)
- LCOE :
-
levelized cost of electricity ($/(kWh))
- P nuclear :
-
electric power of the standalone nuclear reactor (MW)
- P snpd :
-
output power of the SNPD system (MW)
- P solar :
-
incremental electric power (MW)
- Q n,th :
-
heat input contributed by the nuclear reactor for electric power generation (MW)
- Q s,th :
-
heat input contributed by the solar energy island for electric power generation (MW)
- r solar :
-
discount rate of the solar energy block (−)
- T :
-
temperature (K)
- VOMC :
-
variable operating and maintenance costs ($/(kWh))
- W act :
-
actual power generation value of every month (MWh)
- W nom :
-
nominal power generation of every month (MWh)
- η e :
-
electric efficiency of the SNPD system (−)
- η solar :
-
efficiency of the incremental output electric power (−)
- μ :
-
dynamic viscosity (N∙s/m2)
- ρ :
-
density (kg/m3)
- htf :
-
heat transfer fluid
- n :
-
nuclear
- s :
-
solar energy
- snpd :
-
SNPD system
- CTPP :
-
coal-fired thermal power plant
- HMEU :
-
hybrid multi-energy utilization
- O&M :
-
operation and maintenance
- NREL :
-
National Renewable Energy Laboratory
- NSSS :
-
nuclear steam supply system
- PV :
-
photovoltaic
- PWR :
-
pressurized water reactor
- SNPD :
-
solar-nuclear power and desalination
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Gang Wang: writing — original draft, Dongyu Li: writing — review and editing, Jianqing Lin: writing — review and editing, and Chuntian Gao: writing — review and editing.
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Wang, ., Li, D., Lin, J. et al. Technical-economic and environmental protection performance evaluation of a novel hybrid solar-nuclear thermally coupled power and desalination plant. Environ Sci Pollut Res 30, 94639–94648 (2023). https://doi.org/10.1007/s11356-023-29095-3
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DOI: https://doi.org/10.1007/s11356-023-29095-3