This paper presents a new wide-ranging correlation for the viscosity of cyclopentane based on critically evaluated experimental data. The correlation is designed to be used with a recently developed equation of state, and it is valid from the triple point to 360 K in the liquid range up to 380 MPa and 460 K in the low-pressure vapor range. The average absolute percent deviation of the fit for all primary data is 0.8% with a bias of −0.3%. The estimated expanded uncertainty of the whole fit is 2.7% (at the 95% confidence level), while the uncertainty near atmospheric pressure from 298 K to 460 K increases to 4%. The correlation behaves in a physically reasonable manner when extrapolated to 500 MPa; however, care should be taken when using the correlations outside of the validated range.This paper presents a new wide-ranging correlation for the viscosity of cyclopentane based on critically evaluated experimental data. The correlation is designed to be used with a recently developed equation of state, and it is valid from the triple point to 360 K in the liquid range up to 380 MPa and 460 K in the low-pressure vapor range. The average absolute percent deviation of the fit for all primary data is 0.8% with a bias of −0.3%. The estimated expanded uncertainty of the whole fit is 2.7% (at the 95% confidence level), while the uncertainty near atmospheric pressure from 298 K to 460 K increases to 4%. The correlation behaves in a physically reasonable manner when extrapolated to 500 MPa; however, care should be taken when using the correlations outside of the validated range.

中文翻译：

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环戊烷粘度从三点到 460 K 和高达 380 MPa 的参考相关性

本文基于严格评估的实验数据，提出了一种新的广泛的环戊烷粘度相关性。该相关性旨在与最近开发的状态方程一起使用，它在高达 380 MPa 的液体范围内从三相点到 360 K 和低压蒸汽范围内的 460 K 有效。所有主要数据拟合的平均绝对百分比偏差为 0.8%，偏差为 -0.3%。整个拟合的估计扩展不确定性为 2.7%（在 95% 的置信水平下），而大气压附近从 298 K 到 460 K 的不确定性增加到 4%。当外推到 500 MPa 时，相关性表现出物理上合理的方式；但是，在验证范围之外使用相关性时应小心。本文基于严格评估的实验数据，提出了一种新的广泛的环戊烷粘度相关性。该相关性旨在与最近开发的状态方程一起使用，它在高达 380 MPa 的液体范围内从三相点到 360 K 和低压蒸汽范围内的 460 K 有效。所有主要数据拟合的平均绝对百分比偏差为 0.8%，偏差为 -0.3%。整个拟合的估计扩展不确定性为 2.7%（在 95% 的置信水平下），而大气压附近从 298 K 到 460 K 的不确定性增加到 4%。当外推到 500 MPa 时，相关性表现出物理上合理的方式；但是，在验证范围之外使用相关性时应小心。