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Questions and Answers
What type of models require process knowledge for their description?
What type of models require process knowledge for their description?
- Structural models
- Nonparametric models
- Linear models
- Parametric models (correct)
What is a characteristic of nonparametric models?
What is a characteristic of nonparametric models?
- They require little information about the inner structure. (correct)
- They are only used for linear systems.
- They are white box models.
- They have few parameters.
What is the purpose of using separate data sets for model identification and testing?
What is the purpose of using separate data sets for model identification and testing?
- To avoid over-modeling (correct)
- To reduce the model complexity
- To identify the model parameters
- To test the model accuracy
What is a property of linear models?
What is a property of linear models?
What is the goal of model identification?
What is the goal of model identification?
What type of models are constructed from experimental data and are predictive in nature?
What type of models are constructed from experimental data and are predictive in nature?
What is the primary consideration when developing a model?
What is the primary consideration when developing a model?
What type of model is based on physical and chemical laws of conservation?
What type of model is based on physical and chemical laws of conservation?
What is the characteristic of a white box model that allows it to be developed before a process exists?
What is the characteristic of a white box model that allows it to be developed before a process exists?
What is the purpose of classifying models into different types?
What is the purpose of classifying models into different types?
What is the state variable of a white box model?
What is the state variable of a white box model?
What is the primary advantage of white box models?
What is the primary advantage of white box models?
What is the equation of motion resulting from equations (2.40) and (2.42)?
What is the equation of motion resulting from equations (2.40) and (2.42)?
What is the physical significance of the induction constant in the equation of motion?
What is the physical significance of the induction constant in the equation of motion?
What is the consequence of a fluid being subject to shear stress?
What is the consequence of a fluid being subject to shear stress?
What is the physical quantity represented by the symbol τ in equation (2.46)?
What is the physical quantity represented by the symbol τ in equation (2.46)?
What is the characteristic of Newtonian fluids at constant pressure and temperature?
What is the characteristic of Newtonian fluids at constant pressure and temperature?
What is the analogy drawn with viscosity in the text?
What is the analogy drawn with viscosity in the text?
What is the result of heating a liquid mass flow Fm of a component i from Tinit to the boiling point Tbp and evaporating it?
What is the result of heating a liquid mass flow Fm of a component i from Tinit to the boiling point Tbp and evaporating it?
What does the specific enthalpy Ĥ depend on?
What does the specific enthalpy Ĥ depend on?
What does ni represent in the equation Hˆ = Hˆ (T , n , n ,...)?
What does ni represent in the equation Hˆ = Hˆ (T , n , n ,...)?
What is H i (T ) in the equation ∂mHˆ (T , Ci ) ∂ρHˆ (T , Ci ) ~ = H i (T )?
What is H i (T ) in the equation ∂mHˆ (T , Ci ) ∂ρHˆ (T , Ci ) ~ = H i (T )?
At what temperature is the heat of formation Hi (T ) usually defined?
At what temperature is the heat of formation Hi (T ) usually defined?
What is the unit of H i (T ) in the equation H i (T ) = H formation ,i (Tref ) + ∫ c Pmol ,i (T ) dT?
What is the unit of H i (T ) in the equation H i (T ) = H formation ,i (Tref ) + ∫ c Pmol ,i (T ) dT?
What occurs in stagnant gas or liquid layers during conduction?
What occurs in stagnant gas or liquid layers during conduction?
What determines the heat flow per unit area in conduction?
What determines the heat flow per unit area in conduction?
What is the wavelength range of electromagnetic heat radiation?
What is the wavelength range of electromagnetic heat radiation?
How does the energy radiated by an object change with its absolute temperature?
How does the energy radiated by an object change with its absolute temperature?
What is a characteristic of a black object?
What is a characteristic of a black object?
What is the unit of the Stefan-Boltzmann constant?
What is the unit of the Stefan-Boltzmann constant?
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