Using the MIT Emissions Prediction and Policy Analysis (EPPA) model as an example, two ways of representing technology in these models are discussed: the sector-level description of production possibilities founded on social accounting matrices and elasticity estimates, and sub-models of specific supply or end-use devices based on engineering-process data.
Innovative methods are mainly based on engineering geochemical processes, looking for the recovery of resource materials and the reduction of emissions to the environment.
If it exceeds the predetermined threshold (the threshold value can be determined based on engineering experience), the process is probably in an abnormal state.
The superstructure is formulated based on engineering knowledge and is coupled to process models developed in Aspen and Matlab, together with multi-objective optimisation routines and uncertainty assessments.
When applied to an individual energy system, such as coal or nuclear electricity generation, an LCA PCA methodology can yield relatively accurate results with its detailed process representation based on engineering data.
Like the set point model, this idea is also based on engineering control systems.
For chemical engineering, it will promote the transition from an experience-and-experiment-based research and development mode to the one based on virtual process engineering (VPE).
The present work is based on process engineering taking into account different melting and casting technologies in order to develop a dependable and reproducible series production route for TiAl LPT blades including the corresponding process parameter window.
At the other extreme, strictly descriptive models have also been reported [ 10- 12], in which the precision of the formalism proposed, based on process engineering, establish a clear and unique qualitative representation of the network interactions.
This paper is based on the process engineering and optimization analysis, commissioned to the University Campus-Biomedico of Rome by the MIDA Tecnologie Ambientali S.r.l.
