本文關(guān)鍵詞：氣體黏度與溫度和壓力關(guān)系的擬合表達(dá)式　出處：《排灌機(jī)械工程學(xué)報(bào)》2017年02期 　論文類型：期刊論文

  更多相關(guān)文章： 氣體黏度 溫度 壓力 擬合關(guān)系式

【摘要】：為了了解氣體黏度對(duì)干氣密封等氣體潤滑機(jī)構(gòu)性能的影響,在高壓條件下,氣體黏度與氣體溫度和壓力均有關(guān)系.文中以氮?dú)庾鳛檠芯繉?duì)象,以AP1700物質(zhì)物性平臺(tái)數(shù)據(jù)庫作為數(shù)據(jù)源,采用數(shù)學(xué)軟件用最小二乘法擬合出黏-溫、黏-壓、黏-溫-壓3種關(guān)系式.將擬合關(guān)系式與美國國家標(biāo)準(zhǔn)與技術(shù)研究院(NIST)數(shù)據(jù)庫、中國國家標(biāo)準(zhǔn)《熱交換器》(GB/T 151—2014)附錄中給出的氣體黏度值、BOOSER編著的《摩擦數(shù)據(jù)手冊(cè)》中提供的氣體黏度計(jì)算值和Lucas經(jīng)典方程計(jì)算數(shù)據(jù)進(jìn)行對(duì)比.結(jié)果發(fā)現(xiàn):文中擬合得到的關(guān)系式具有較高精確度,可以作為氣體黏度與溫度和壓力變化規(guī)律的一種表達(dá)式,用于涉及黏-溫、黏-壓、黏-溫-壓的黏度計(jì)算.
[Abstract]:In order to understand the effect of gas viscosity on the performance of dry gas seal and other gas lubricating mechanism, gas viscosity is related to gas temperature and pressure under high pressure. Taking the AP1700 physical property database as the data source, the mathematical software was used to fit the visco-temperature, visco-pressure with the least square method. Three kinds of viscosis-temperature-pressure relations. The fitting relation is combined with the NIST database of the National Institute of National Standards and Technology (NIST). The gas viscosity values given in the appendix of the Chinese National Standard "Heat Exchanger" (GB / T 151-2014). The calculated value of gas viscosity provided in friction data Manual compiled by BOOSER is compared with the calculated data of classical Lucas equation. The results show that the relationship obtained in this paper has a high accuracy. It can be used as an expression of the variation of gas viscosity with temperature and pressure. It can be used to calculate the viscosity of gas with respect to visco-temperature, visco-pressure and visco-temperature-pressure.
【作者單位】： 昆明理工大學(xué)化學(xué)工程學(xué)院;昆明理工大學(xué)機(jī)電工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51465026)
【分類號(hào)】：O521
【正文快照】： 昆明650500)鄧強(qiáng)國,宋鵬云,毛文元,等.氣體黏度與溫度和壓力關(guān)系的擬合表達(dá)式[J].排灌機(jī)械工程學(xué)報(bào),2017,35(2):144-151.DENG Qiangguo,SONG Pengyun,MAO Wenyuan,et al.Fitting expression of relationship between gas viscosity,and temperatureand/or pressure[J].Journal，

本文編號(hào)：1385945