摘要
根据天然气能量计量的研究现状和应用需求,研究了天然气发热量测量标准装置,采用绝热式氧弹热量计测量高纯甲烷气体发热量,使测量结果通过燃烧热标准物质溯源到国际单位上。设计并研制了平衡取气装置系统,实现了燃烧前样气的采集。高纯甲烷发热量测量结果为39900J/m3,扩展不确定度为0.6%(k=2)。
According to the research status and application requirements for energy measurement, the reference calorimeter of natural gas is studied. The calorific value of high-purity methane is determined by the oxygen bomb calorimeter, an adiabatic oxygen bomb calorimeter calibrated by the CRM of benzoic, which calorific value of the benzoic CRM traces to SI unit via the national standard. The device sample collect and equilibrium designed by NIM is described. The superior calorific value of methane is 39 900 KJ/m3 with an expanded rative uncertainty of 0. 6% ( the expanded factor, k = 2).
出处
《计量学报》
CSCD
北大核心
2013年第6期592-596,共5页
Acta Metrologica Sinica
基金
国家科技部科技基础条件平台项目(APT06~Am8)
关键词
计量学
能量计量
天然气
甲烷
苯甲酸
标准物质
发热量
Metrology
Energy measurement
Natural gas
Methane
Benzoic
Reference material
Calorific value