Research progress of chloride salt as heat transfer fluid in concentrating solar power plant
Journal Title: Energy Environmental Protection - Year 2023, Vol 37, Issue 1
Abstract
Solar energy is the most abundant clean renewable energy on the surface of earth. Solar energy utilization is the most important part of the global renewable energy development strategy. Coupling concentrating solar power (CSP) with thermal energy storage (TES) to produce schedulable cleanpower is one of the important ways to achieve low-carbon transition of energy. Energy conversion efficiency and power costs hold the key to solar thermal power plants. Taking molten salt as an example, the development of thermal energy storage (TES)/heat transfer fluids (HTFs) systems with higher operating temperature (>565 ℃) is of great importance to improving the efficiency of solar thermal power generation. Chloride salt is considered to be one of the most promising TES/HTF systems for the next generation to achieve higher efficiency and lower cost. Based on the current research status of chloride salt, this paper discusses the basic research and development strategy of chloride salt, includingthe thermal properties, corrosion mechanism and corrosion mitigation strategy. The results show that the maximum operating temperature of molten salt is the key to determining the efficiency of TES system. However, the corrosion of metal structural materials in molten salts limits the development of chloride salt. In high temperature molten salt, the main means to inhibit the corrosion of metal structural materials are purification of chloride salt and addition of corrosion inhibitor.
Authors and Affiliations
ZHAO Le|School of Energy Power and Mechanical Engineering, North China Electric Power University, China, DU Xiaoze*|School of Energy Power and Mechanical Engineering, North China Electric Power University, China, School of Energy and Power Engineering, Lanzhou University of Technology, China
Keywords
Related Articles
- EP ID EP737307
- DOI 10.20078/j.eep.20230118
- Views 6
- Downloads 0
Study on simultaneous desalination and removal of organic matter from water by electro-Fenton membrane distillation composite process
An electrocatalytic hydrophobic membrane was prepared by vacuum filtration method, and a novel electro-Fenton membrane distillation (EF-MD) composite process was developed based on electrocatalytic hydrophobic membrane c...
Degradation of tetracycline hydrochloride by CoFe_2O_4/MnO_2 activated permonosulfate
To address the issue that tetracycline antibiotic pollutants are accumulating in water and causing serious harm to human health and the ecological environment, this study prepared a novel composite material of CoFe_2O_4/...
Iron⁃calcium⁃biochar enhanced sludge deep dewatering and sludge⁃based biochar preparation
Sludge dewatering is a crucial step in sludge disposal and resource recovery. While FeCl3 is commonly used to enhance sludge dewatering, it is ineffective for some residual sludges, resulting in a high moisture content i...
Recent progress on catalysts for low-concentration coal mine gas oxidation
During the coal extraction process, the emission of low-concentration coal mine gas significantly contributes to greenhouse gas emissions. Catalytic oxidation is an effective strategy for converting the coal mine gas to...
A review of the research progress of ammonia combustion enhancement technology
Under the guidance of the "double carbon strategy", as a new type of zero-carbon fuel, ammonia has gradually attracted attention. To solve the issues of ignition, low flame speed, and narrow flammable range of ammonia co...