公开(公告)号：US20140287092A1

公开(公告)日：2014-09-25

申请号：US14296859

申请日：2014-06-05

Applicant: Invensys Systems, Inc.

Inventor： David Bluck ,  Prashant R. Karbhari ,  Wen-Jing Lin

IPC: C12M1/34

CPC classification number: C12M41/00 ,  C12C13/00 ,  G05B17/02 ,  G06F17/5009 ,  G06N20/00

Abstract: A method of modeling a fermentation process comprises providing a first principles model of a fermentation process; determining the concentration of at least one substrate in a fermentation composition at a first time; and predicting the concentration of at least one component of the fermentation composition at a second time using the first principles model, wherein the second time is after the first time.

Abstract translation: 发酵过程建模的方法包括提供发酵过程的第一原理模型; 在第一时间确定发酵组合物中至少一个底物的浓度; 以及使用所述第一原理模型在第二时间预测所述发酵组合物的至少一种组分的浓度，其中所述第二次是在所述第一次之后。

公开(公告)号：US09026413B2

公开(公告)日：2015-05-05

申请号：US13623203

申请日：2012-09-20

Applicant: Invensys Systems, Inc.

Inventor： Gang Xu ,  David Bluck

IPC: G06G7/48 ,  G06F17/50

CPC classification number: G06F17/5009

Abstract: A method of modeling phase characteristics of thermodynamic systems utilizing pseudo-properties strategy and a reduced number of variables is disclosed herein. The method describes a means of determining the probability of phase splitting of mixtures of materials at a given temperature, pressure, and composition by characterizing the functions that describe the system via pseudo-properties, and also by describing the system in n−1 or fewer variables, where n represents the number of components in the system of interest. In an embodiment, a multi-component system is characterized in one variable, thereby providing simplified thermodynamic models in a time-efficient manner. In addition, the information generated by this reduced-variable calculation can further be used as a starting point for calculations of equations of state.

Abstract translation: 本文公开了一种使用伪属性策略和减少数量的变量来建模热力学系统的相位特性的方法。 该方法描述了通过表征通过伪属性描述系统的功能，并且还通过将系统描述在n-1或更少的系统中来确定在给定温度，压力和组成下的材料混合物的相位分裂的概率的手段 变量，其中n表示感兴趣的系统中的组件的数量。 在一个实施例中，多组分系统的特征在于一个变量，从而以时间有效的方式提供简化的热力学模型。 另外，通过该减量计算生成的信息可以进一步用作计算状态方程的起始点。

公开(公告)号：US20140081607A1

公开(公告)日：2014-03-20

申请号：US13623203

申请日：2012-09-20

Applicant: Invensys Systems, Inc.

Inventor： Gang Xu ,  David Bluck

IPC: G06F17/13

CPC classification number: G06F17/5009

Abstract: A method of modeling phase characteristics of thermodynamic systems utilizing pseudo-properties strategy and a reduced number of variables is disclosed herein. The method describes a means of determining the probability of phase splitting of mixtures of materials at a given temperature, pressure, and composition by characterizing the functions that describe the system via pseudo-properties, and also by describing the system in n−1 or fewer variables, where n represents the number of components in the system of interest. In an embodiment, a multi-component system is characterized in one variable, thereby providing simplified thermodynamic models in a time-efficient manner. In addition, the information generated by this reduced-variable calculation can further be used as a starting point for calculations of equations of state.

Abstract translation: 本文公开了一种使用伪属性策略和减少数量的变量来建模热力学系统的相位特性的方法。 该方法描述了通过表征通过伪属性描述系统的功能，并且还通过将系统描述在n-1或更少的系统中来确定在给定温度，压力和组成的材料混合物的相位分裂的概率的手段 变量，其中n表示感兴趣的系统中的组件的数量。 在一个实施例中，多组分系统的特征在于一个变量，从而以时间有效的方式提供简化的热力学模型。 另外，通过该减量计算生成的信息可以进一步用作计算状态方程的起始点。