Results 221 to 230 of about 165,623 (262)

Optimized couplers for interfacial thermal transport

Journal of Physics: Condensed Matter, 2015
To find optimized interfacial thermal couplers we study thermal transport though a one dimensional atomic chain which includes three parts--two semi-infinite leads and a center region acting as a thermal coupler. It is found that the spring constant and atomic mass of an interfacial coupler can be selected to maximize interfacial thermal conductance ...
Bo, Chen, Lifa, Zhang
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Optimal Control of Thermal Power Plants

Journal of Dynamic Systems, Measurement, and Control, 1989
Application of optimal control system to thermal power plants is introduced. The suggested system consists of the conventional PID controllers and the control computer. It has been successfully applied to five supercritical power plants in Kyushu Electric Power Company (Total output 2,700 MW) since 1978.
Nakamura, H., Toyota, Y., Kushihashi, M., Uchida, M.   +3 more
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Topology optimization of a passive thermal actuator

Fifteenth International Symposium on Quality Electronic Design, 2014
This paper presents a topology-optimized passive thermal micro actuator with large thermal deflection. The actuator relies on different coefficients of thermal expansion of an active material as well as the substrate and temperature changes of the surrounding environment. COMSOL Multiphysics is used for the topology optimization algorithm.
Harald Steiner, Wilfried Hortschitz, Franz Keplinger, Thilo Sauter   +3 more
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Modeling, Simulation, and Thermally Optimization of Thermally-Coupled Distillation Columns

International Journal of Chemoinformatics and Chemical Engineering, 2016
Distillation is one of the most widely used separation units that consumes the largest amount of energy in chemical and petrochemical industries. Heat integration of thermally coupled distillation column is one of the methods to reduce energy-consumption.
Fatemeh Safari, Arjomand Mehrabani-Zeinabad   +1 more
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External optimization controller in optimal control of thermal power units

2012 International Conference on Machine Learning and Cybernetics, 2012
As a source of electricity production, the level of automation in thermal power units is increasing higher and higher due to the construction of smart power grids. The units in grids should be working in automatic generation control and primary frequency. The optimal control has changed to a hot spot in the industry.
Yue Zhang, Hong-Bing Xu, Meng-Jiao Liu, Wei-Yan Chen   +3 more
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Thermal resistance (Rth) enhancement by optimizing TO package thermal contact

2010 34th IEEE/CPMT International Electronic Manufacturing Technology Symposium (IEMT), 2009
The trend for package size shrinkage has created challenges to thermal performance while improving the cost performance. When TO package size shrink by minimizing the leadframe copper usage, challenges in package warpage and thermal contact become great.
Lee Teck Sim, Darakorn Sae Le
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Optimal Control of a Nonlinear Thermal System

IFAC Proceedings Volumes, 1989
Abstract An optimal control problem of a nonlinear theraal system is studied. The existence of an optimal solution is given. The problem is discretized by an implicit scheme in time and a finite elements method of first order in space. A convergence result of the discrete optimal solution towards the continuous optimal solution is worked out.
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An accurate simulation framework for thermal explorations and optimizations

Proceedings of the 2015 Workshop on Rapid Simulation and Performance Evaluation: Methods and Tools, 2015
While technology scaling allows to integrate more cores in the same chip, the complexity of current designs requires accurate and fast techniques to explore different trade-offs. Moreover, the increased power densities in current architectures highlight thermal issues as a first class design metric to be addressed.
TERRANEO, FEDERICO, ZONI, DAVIDE, FORNACIARI, WILLIAM   +2 more
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Thermal modeling and optimization of a thermally matched energy harvester

Smart Materials and Structures, 2015
The interest in energy harvesting devices has grown with the development of wireless sensors requiring small amounts of energy to function. The present article addresses the thermal investigation of a coupled piezoelectric and bimetal-based heat engine.
Boughaleb, J., Arnaud, A., Cottinet, P, Monfray, S., Gelenne, P, Kermel, P, Quenard, S., Boeuf, F., Guyomar, D., Skotnicki, T.   +9 more
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Simplified thermal modelling for optimal thermal control strategy of buildings

AIP Conference Proceedings
Today, control, automation, and supervisory systems are essential components of HVAC systems for the benefits they offer in managing and optimizing resources. This paper intends to explore the identification of an optimal thermal control strategy that is responsive to the outdoor temperature distribution, and it is respectful of the features of the sub-
Concilio C., Saporoso M., Guarnaccia C., Cuccurullo G.   +3 more
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