基于IAPWS -IF97 的第3 区水和蒸汽密度的迭代计算

辽宁石油化工大学学报 ›› 2007, Vol. 27 ›› Issue (4): 38-40.

基于IAPWS -IF97 的第3 区水和蒸汽密度的迭代计算

晏永飞, 陈保东, 王　伟

辽宁石油化工大学机械工程学院, 辽宁抚顺113001

收稿日期:2007-02-01 出版日期:2007-12-20 发布日期:2017-07-05
作者简介:晏永飞(1974 -), 男, 黑龙江甘南县, 讲师, 硕士

Iterative Computation of Water and Steam Density Based on the Third Zone of IAPWS -IF97

School of Mechanical Engineering , Liaoning University of Petroleum &Chemical Technology , Fushun Liaoning 113001, P .R .China

Received:2007-02-01 Published:2007-12-20 Online:2017-07-05

摘要/Abstract

摘要： 　目前我国稠油油田开始使用额定工作压力接近临界状态的注汽锅炉。在开发注汽锅炉时, 要涉及到接近临界状态的水和蒸汽性质的计算。临界状态在IAPWS -IF97 工业标准中被划分为第3 区, 此区的水和蒸汽性质的计算公式都与水和蒸汽的对比密度有关, 而标准中并没有具体给出密度的求解方法。基于IAPWS -IF97 公式推导出密度的求根方程, 再采用弦截法迭代求出。这种方法运算速度快, 收敛性好, 算出的密度值与性质表给出值十分接近。

关键词: 注汽锅炉, 　密度, 　弦截法迭代, 　水和蒸汽的性质

Abstract:

　 At present , injected gas boilers , with their nominal working pressure approaching critical state , are adopted in the thick oil fields of our country .During the design of injected gas boiler , the character of water and steam under critical state needs calculating .The critical state was assigned to be the third zone in the Industrial standard of IAPWS -IF97 .The computation formula for the character of water and steam of this zone is associated with reduced density , but the solving method of the density is not given by the standard .Based on the formula of IAPWS -IF97, the root equation of density was deduced and the result was got by the chord iterative method .The operating speed of this method is quick , the convergence property is good and the calculated value of the density is close to the value given by the property table .

Key words: Injection steam boiler, , Density, , Chordite rative method, , Property of water and steam

晏永飞, 陈保东, 王　伟. 基于IAPWS -IF97 的第3 区水和蒸汽密度的迭代计算[J]. 辽宁石油化工大学学报, 2007, 27(4): 38-40.

YAN Yo ng -fei,CHEN Bao -dong,WANG Wei. Iterative Computation of Water and Steam Density Based on the Third Zone of IAPWS -IF97[J]. Journal of Liaoning Petrochemical University, 2007, 27(4): 38-40.

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