In this paper, Steam Assisted Gravity Drainage (SAGD) is introduced and its advantages over ordinary steam injection is demonstrated. A simple simulation model is built and three scenarios of natural production, ordinary steam injection, and SAGD are compared in terms of their cumulative oil production and cumulative oil steam ratio. The results show that SAGD can significantly enhance oil prod...

A detailed exergy analysis was performed for the steam reforming process of glycerol by means a series experiments in bench scale apparatus. The conducted fixed bed reactor, which operated heat recovery mode extracting demanded energy from hot exhaust gases provided diesel engine. In order to determine role main operational parameters into efficiency studied process, were carried out with feed ...

A rigorous two-dimensional model is developed for simulating the operation of a less-investigated type steam reformer having a considerably lower operating Reynolds number, higher tube diameter, and non-availability of extra steam in the feed compared with conventional steam reformers. Simulation results show that reasonable predictions can only be achieved when certain correlations for wall to...

The Mixed Logical Dynamical (MLD) formalism is an efficient modeling framework for hybrid systems which allows formulating and solving problems such as moving horizon predictive control and state estimation. This paper presents the application of the combined strategies – state estimation for fault detection and predictive control for water level control – to a steam generator benchmark modeled...

Nuclear power plant steam generator replacement decisions involve roughly $1 B in capital and replacement power costs. SDG has been engaged in helping utilities make this type of decision for the past 20 years. For PG&E, we decided to change our analytic approach to include a Monte Carlo simulation. This paper discusses the results and the strengths and limitations of this analytic approach. Be...

Executive Summary The Clean Coal Technology (CCT) Demonstration Program is a government and industry co-funded effort to demonstrate a new generation of innovative coal utilization processes in a series of " show-case " facilities built across the country. These projects are carried out on a sufficiently large scale to prove technical feasibility and provide the information required for additio...

In this paper, a bond graph model based approach for robust FDI (Fault Detection and Isolation) in presence of parameter uncertainties is presented. Due to the energetic and multi physical properties of the Bond Graph, the whole of nonlinear model, structural analysis, residual with adaptive thresholds generations, and residual sensitivity analysis, can be synthesized using only one tool. This ...