研究目的
To describe the characteristics and benefits of magnesium hydride slurry for hydrogen storage and evaluate its cost-effectiveness in a baseload wind power system.
研究成果
Magnesium hydride slurry offers a safe, cost-effective method for hydrogen storage, with advantages in heat transfer, sintering control, and infrastructure compatibility. The economic analysis shows that a baseload wind power system using this storage can achieve a 10% IRR at competitive electricity prices, supporting renewable energy integration. Future improvements could include heat recovery and combining with solar energy to reduce storage needs.
研究不足
The study relies on modeled wind data rather than measured data, which may not fully represent real-world conditions. Assumptions about costs (e.g., for magnesium hydride slurry production) and efficiencies (e.g., no heat recovery in the model) could be optimistic. The analysis is specific to a 150 MW system and may not scale directly to other sizes. Potential deactivation of slurry over time due to exposure to air is noted but not fully quantified.
1：Experimental Design and Method Selection:
The study involves evaluating magnesium hydride slurry characteristics, including cycling hydrogen in and out of the slurry, and conducting an economic analysis for a baseload wind power system. Theoretical models for reaction rates and economic metrics like IRR are employed.
2：Sample Selection and Data Sources:
Slurries with 40-75 wt% solids are used, based on previous experience. Wind data from NREL for a site near Lubbock, TX, and load data from ISO New England are utilized.
3：List of Experimental Equipment and Materials:
Equipment includes a Parr Autoclave, high-pressure hydrogen tank, regulator, low-pressure tank, and compressor. Materials include magnesium hydride powder, light mineral oil, and water for electrolysis.
4：Experimental Procedures and Operational Workflow:
For slurry testing, hydrogen is cycled at temperatures of 280-370°C and pressures around 1724 kPa for hydriding and 448-552 kPa for dehydriding. For the economic model, hourly and 10-minute data are processed to simulate power generation, storage, and sales over a year.
5：Data Analysis Methods:
Data on hydrogen adsorption/desorption are calculated from pressure, volume, and temperature measurements. Economic analysis uses capital costs, operating expenses, and income streams to compute IRR and other metrics.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
