Simulation of flow conditions for natural gas and hydrogen blends in the distribution natural gas network
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY(2024)
摘要
This study analyzes the improvement of mixture homogeneity between natural gas and hydrogen within a pipeline by inserting a static mixer inside. Recurring to Ansys Fluent, three different cases were simulated to test the mixing. The performance of an helicoidal mixer (KMS) and a KVM mixer were analyzed and compared to the standard T-junction without static mixer. The required distance for achieving a homogeneous mixture, measured by the coefficient of variation (COV), was calculated and compared with the resulting pressure loss. The three cases were analyzed for hydrogen injection percentages until 20 % and for a gas pipeline connecting the transmission line to the distribution line (P = 18 bar). The use of static mixers facilitates a faster homogenization of the mixture. Among these mixers, the KVM mixer performed the best, achieving a homogeneous mixture over a shorter distance while incurring a lower pressure loss.
更多查看译文
关键词
Power-to-gas,Hydrogen blending,Static mixer,Natural gas grid,CFD
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要