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有关化工设计院由化工部配备了美国德州仪器公司生产的TI—59型可编程序袖珍电子计算器,随机附有“主程序库”固态软件一块,在此块软件内共编有25个程序,其中第二个程序(ML—02)为矩阵程序,其功能可求解行列式的值、逆矩阵的值及线性联立方程。应用TI—59型计算器来求解热力系统中汽水平衡计算所列出的一组联立方程式,可减轻设计人员计算工作量并保证计算的正确性。由于计算器数据库的容量有限,只能求解八元一次联立方程式,故在列汽水平衡方程式时需加以注意。当出现未知数超过八个或出现二次项时,必须作适当的简化和转换处理。本文仅举例说明应用计算器求解汽水平衡联立方程式的使用方法,对于计算器的其它功能不作介绍。
The relevant chemical design institute is equipped with TI-59 programmable pocket electronic calculators produced by Texas Instruments Corporation by the Ministry of Chemical Industry. The main program library "solid-state software is provided with a total of 25 One program, of which the second program (ML-02) is a matrix program, its function can solve the determinant value, inverse matrix value and linear simultaneous equations. The application of the TI-59 calculator to solve a set of simultaneous equations for the steam-water balance calculation in a thermal system can reduce the computational effort and ensure the correctness of the calculations. Due to the limited capacity of the calculator database, it can only solve a one-time simultaneous equations of eight yuan. Therefore, attention should be paid to the equation of equilibrium of the soda water. When there are more than eight unknowns or quadratic terms, proper simplification and conversion must be done. This article is only an illustration of the use of calculators to solve the simultaneous equations of the water and steam use method, the calculator does not provide an introduction to other functions.