广州化工
廣州化工
엄주화공
Guangzhou Chemical Industry
2015年
22期
33-35
,共3页
二氧化碳%超临界%热力性质%状态方程
二氧化碳%超臨界%熱力性質%狀態方程
이양화탄%초림계%열력성질%상태방정
CO2%super-critical%thermal properties%equation of state
通过用BWR方程、 Exp-RK立方型方程和81型马丁-候方程对超临界状态下CO2的P-Ⅴ-T性质进行计算，得出CO2在超临界状态时的压力值P并与实验数值进行比对，分析其偏差。可知，使用Exp-RK方程跟81型马丁-候方程计算超临界状态下CO2的偏差都较小，两方程都可适用于超临界状态下二氧化碳P-Ⅴ-T性质的计算。81型马丁-候精确度较高， Exp-RK方程公式简便、参数较少，用于超临界状态的工程计算也非常方便。
通過用BWR方程、 Exp-RK立方型方程和81型馬丁-候方程對超臨界狀態下CO2的P-Ⅴ-T性質進行計算，得齣CO2在超臨界狀態時的壓力值P併與實驗數值進行比對，分析其偏差。可知，使用Exp-RK方程跟81型馬丁-候方程計算超臨界狀態下CO2的偏差都較小，兩方程都可適用于超臨界狀態下二氧化碳P-Ⅴ-T性質的計算。81型馬丁-候精確度較高， Exp-RK方程公式簡便、參數較少，用于超臨界狀態的工程計算也非常方便。
통과용BWR방정、 Exp-RK립방형방정화81형마정-후방정대초림계상태하CO2적P-Ⅴ-T성질진행계산，득출CO2재초림계상태시적압력치P병여실험수치진행비대，분석기편차。가지，사용Exp-RK방정근81형마정-후방정계산초림계상태하CO2적편차도교소，량방정도가괄용우초림계상태하이양화탄P-Ⅴ-T성질적계산。81형마정-후정학도교고， Exp-RK방정공식간편、삼수교소，용우초림계상태적공정계산야비상방편。
The P-Ⅴ-T properties of super-critical CO2 were calculated by using BWRS equation, Exp-RK cubic equation of state and 81 Martin hou equation. It was concluded the pressure of super-critical CO2 and compared with the experimental value, analysis of the deviation. It was known that CO2 super-critical state deviations were smaller by using the Exp-RK cubic equation of state and 81 Martin hou equation, this two equations can be applied to super-critical CO2 condition of P-Ⅴ-T properties calculation. The accuracy of 81 Martin hou equation was higher, the Exp-RK cubic equation of state was simple, less parameters, it was very convenient for calculating the super-critical state.
