Younglove B A
Institute for Basic Standards, National Bureau of Standards, Boulder, Colorado 80302.
J Res Natl Bur Stand A Phys Chem. 1974 May-Jun;78A(3):401-410. doi: 10.6028/jres.078A.023.
The specific heats, , of saturated liquid methane have been measured at 66 temperatures in the temperature range 95-187 K. The specific heats at constant volume, , have been measured at 20 densities ranging from 0.8 to 2.8 times the critical density, at temperatures between 91 and 300 K, and at pressures to 330 bar (at 280 states in all). The uncertainty of most of the measurements is estimated to be less than 0.5 percent, except near the critical point. These measurements were performed primarily to provide input data for accurate thermodynamic properties data calculations for liquid methane. They are believed to be the most comprehensive specific heat measurements available for pure compressed gaseous and liquid methane.
已在95 - 187K的温度范围内的66个温度点测量了饱和液态甲烷的比热容 。在91至300K的温度、高达330巴的压力下（总共280个状态），针对20种密度（范围为临界密度的0.8至2.8倍）测量了定容比热容 。除临界点附近外，大多数测量的不确定度估计小于0.5%。进行这些测量主要是为液态甲烷精确的热力学性质数据计算提供输入数据。据信它们是可用于纯压缩气态和液态甲烷的最全面的比热容测量数据。
