thermodynamics

Multi-Objective Analysis and Optimization of Integrated Cooling in Micro-Electronics With Hot Spots

This work aims to find the optimal configuration of three micro pin-fins in order to reach efficient thermal management. The optimization study using modeFRONTIER shows that pin-fin configurations are capable of containing heat flux levels of next generation electronic chips without compromising the structural integrity, and even the smallest thin film thickness improves both overall and local temperature uniformity.

Optimum Design of Ablative Thermal Protection Systems for Atmospheric Entry Vehicles

An optimization procedure for the design of ablative heat shields is demonstrated in this work. A numerical method using modeFRONTIER is applied to the ablative thermal protection system of the hypersonic reentry capsule Stardust.

Concentrated Solar Power plant piping optimization for gaseous Heat Transfer Fluid

ModeFrontier software was exploited in the optimization of the peripheral portion of a CSP plant based on Airlight parabolic trough collectors, which were modeled in Simscape using a custom domain for gases with temperature dependent properties. A second step involved annual simulation of the plant which included the solar power radiation variation and the thermal energy storage models. MOGA and MOPSO algorithms were employed to maximize the total revenues of the plant. 

Genetic Optimization for economic feasibility of refurbishment in buildings

In this paper, refurbishment of a single residential apartment is carried out by using DesignBuilder for problem definition and initial optimization, Energy Plus for energy computation and modeFRONTIER for driving the optimization loop and performing genetic optimization. The objectives are lowering energy consumption and the life cycle refurbishment cost, using a net present value (NPV) approach.

Automated Deployment of Modelica Models in Excel via Functional

This paper demonstrates a method for automated deployment of models as FMU-based simulators in Microsoft Excel using FMI Add-in for Excel. Integration of the automated simulators in Excel with modeFRONTIER brings a powerful suite of analysis and optimization capabilities to the simulator toolchain. Several examples are used to demonstrate the entire toolchain.

Multi-Objective Optimization of Friction Stir Welding Process Parameters

In this paper, a framework comprised of ANSYS FEM  models embedded in a modeFRONTIER optimization environment is developed in order to predict operating parameters to provide a robust Friction Stir Welding process. A coupled steady-state thermo-mechanical, transient thermal and steady state thermal models were used to represent the system which was optimized using a SOBOL DOE approach with MOGA II.

Axial turbine preliminary design optimization

In turbomachinery design, many geometric parameters and design variables are considered in the process. In this optimization of an axial turbine, softwares Axial NRec and modeFRONTIER were coupled in order to handle the inlet blade angles at mid and tip span by the NSGA II genetic algorithm. The results showed feasible arrangements in the nozzle and rotor blades and efficiency was notably improved.

Application of the Mixed Integer Linearized Exergoeconomic (MILE) method with evolutionary optimization to a cogeneration and district heating system

This project aims to optimize a complex cogenerative system, which is a highly efficient form of energy conversion combining heat and power production (CHP). The problem was formulated as a bi-level linear programming problem using the commercial optimization software modeFRONTIER integrated with FICO® Xpress Optimization Suite.  

A Parametric Optimization Approach to Mitigating the Urban Heat Island Effect A Case Study in Ancona, Italy

This research was conducted in order to identify the mutual dynamic relationships between different attributes of the urban morphology and meteorological parameters of a Mediterranean city. Analysis of the case study of Ancona, Italy allowed various city parameters to be tested for sustainability and their effectiveness in mitigating the urban heat island effect with the use of modeFRONTIER NSGA-II algorithm.

Design of Radial Turbines Operating in the Organic Rankine Cycle Using Optimization and CFD

This thesis proposes a methodology for the development of an appropriate tool for the design of radial turbines that are used in subcritical Organic Rankine Cycles (ORC). The integration of CFD techniques, construction of response surfaces using Radial Basis Function (RBF) and genetic algorithms form the proposed design process.

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