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In this paper,modifications are made in the mathematical models of the continua-tive control and on-off control of the flat-plate solar energy collecting systems,and the twice interpolation method is suggested in establishing the optimized calculating simulation program of the on-off control system.Through analyzing and simulation,the paper points out the sensitivity between system performance index and flow rate,also makes a detailed theoretical analysis and an experimental test of some part of the theoretical... In this paper,modifications are made in the mathematical models of the continua-tive control and on-off control of the flat-plate solar energy collecting systems,and the twice interpolation method is suggested in establishing the optimized calculating simulation program of the on-off control system.Through analyzing and simulation,the paper points out the sensitivity between system performance index and flow rate,also makes a detailed theoretical analysis and an experimental test of some part of the theoretical conclusions which are the basis for reasonably and conveniently selecting the flow rate and other control parameters.For meteorological conditions of the Beijing a practical reference data of approximate optimum control is provided.Lastly the system performance index of the two types of control systems is compared,obtaining: the on-off control is a simple and practical method for application in engineering. 本文对太阳能平板集热器热水系统的连续控制和双位控制方法的数学模型作了改进,利用二次插值法建立了双位控制系统寻优计算模拟程序。通过模拟指出了系统性能对流量变化的灵敏度,并进行了较深入的理论分析和部分结论的实验验证,为合理、方便地选择流量及其它控制参数提供了依据。针对北京地区的气象条件提出了接近最佳控制的具体控制参数。最后,比较了两类控制方法的系统性能,表明双位控制是简单而又实用的控制方法。 Some IR Spectra of different kind solids were measured by diffuse reflectance technique. Some factors that impair the quality of diffuse reflectance spectra, and feasibility of this method for application to practice of IR quantitative analysis were disscused. 用漫反射法测定了不同类型固体样品的红外光谱,讨论了影响漫反射光谱质量的某些因素,以及该法用于实际红外定量分析的可能性。 The author describes a number of new reactive dyes and discusses their structural features,fixation mechanisms,fields and methods for application.These dyes include native products such as M,KP,KE,F,W,PW,SN,etc.as well as foreign products such as Sumifix Supra,Procion SP,Procicn HE Kayacelon CN,Drimarene R/K, Levafix P-A/E-A,Levafix PN,Lanasol and Hostalan etc.The author highlights the dyes which have two reactive groups and dyes which are fixable at neutral pH. 本文介绍和讨论了国产M、KP、KE、F、W、PW、SN等和国外SumifixSupra、Procion Sp、Procion HE、Kayacelon CN、Drimarene R/K和LevafixPA/EA、Levafix PN、Lanasol、Hostalan等新型活性染料,特别是双活性基的活性染料与在中性条件染色的活性染料的结构特征、固色机理、适用纤维、工艺方法,引用了国内在活性染料生产、应用研究方面的许多新成果。
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