...Yogesh Jaluria This paper considers the optimization of thermal systems and processes, which are of interest in a wide range of practical applications, on the basis of mathematical and numerical modeling as well as experimental data. Many complexities, such as property variations, complicated...

...Sainan Lu; Kambiz Vafai The chip-size integrated double-layer microchannels (DLMCs) and multilayer microchannels (MLMCs) are investigated to optimize the thermal performance of three-dimensional integrated circuits (3D ICs). The chip-size integrated DLMCs without a heat spreader and a heat sink...

...Asif Afzal Optimization of thermal performance processes using genetic algorithm (GA) combined with some commercial software or other soft computing methods like artificial neural networks are common in many heat transfer applications with the exception of battery thermal management...

...Andisheh Tavakoli; Kambiz Vafai This study establishes a numerical investigation of the optimal distribution of a limited amount of high thermal conductivity material to enhance the heat removal from 3D integrated circuits, IC. The structure of the heat spreader is designed as a composite of high...

...Reid Smith; Sandip Dutta With advances in additive manufacturing of metal components, commercial production of complex turbine components is becoming feasible. Thus, designers are not constrained to the limitations of conventional manufacturing methods. A new conjugate optimization technique...

...Hamdy Hassan; Souad Harmand An optimization of vapor chamber (VC) region's width and its wick porosity to achieve the minimum temperature rise of the vapor chamber is studied in this paper. The optimization process is carried out by particle swarm optimization (PSO) method. The study is performed...

... (PCHE) with zigzag flow channels in a double-faced configuration was optimized to enhance its thermal–hydraulic performance. Using exergy analysis, the objective function was defined as the net exergy gain of the system considering the exergy gain by heat transfer and exergy loss due to friction...

.... It is noteworthy that in all cases there is a very slight difference between H / D  = 0.12 and 0.13 values. For the ratio D 1 / D 2  = 0.8, there is a similar trend as that for D 1 / D 2  = 0.7. But for D 1 / D 2  = 1.0 and 1.1, where the optimal configuration was placed, the CL shows different...

... [22] Nocedal , J. , and Wright , S. J. , 1999 , Numerical Optimization , Springer , New York , Chap. 3. [23] Hauf , W. , and Grigull , U. , 1970 , “ Optical Methods in Heat Transfer ,” Adv. Heat Transfer , 6 , pp. 133 – 366 . 10.1016/S0065-2717(08)70151-5 [24...

... have been obtained when thermal resistance is minimized with volume and when either L or t b is fixed. The method to find optimal geometries for a rectangular plate fin is given in Ref. [ 21 ] and applied to other fin shapes in Ref. [ 5 ]. The case where l is fixed has...

...Adrian Bejan Here, I review the physics meaning of optimization, knowledge and design evolution, and why these concepts and human activities are profoundly useful for human life. A law of physics is a concise statement that summarizes a phenomenon that occurs in nature. A phenomenon is a fact...

... Lorenzini. 29 06 2012 26 02 2013 What distinguishes the present study from those in the past, as was discussed in the Introduction, is that the population-based optimization methods employed here operate on full nonlocal simulations of turbulent flow and heat transfer within...

... positive and negative effects on the hot spot temperature. Therefore, the existence of an optimal value for the plate thickness is probable. Before conducting an optimization procedure, it is worthy to introduce the following dimensionless variables (1) θ = T - T ∞ T n . p...

... 2012 11 03 2013 This work is a statistical study of the broadband light absorption in thin film solar cells, enhanced by metallic surface nanotexturing. We consider optimum grating structures on the surface of amorphous silicon solar cells obtained by inverse optimization, and study...

...: Giulio Lorenzini. 04 07 2012 07 03 2013 The concept of relative inverse admittance applied to composite fins optimization in the case of longitudinal rectangular fins under 2D heat conduction is presented in this work. Here, different values for convective conditions at the fin...

.... Assoc. Editor: Giulio Lorenzini. 22 07 2012 18 03 2013 This paper proposes and implements a new methodology for optimizing finned-tube heat exchangers (FTHEs) using a volume-averaging theory (VAT) hierarchical physical model and a genetic algorithm (GA) numerical optimizer...

...R. Karvinen; T. Karvinen A method and practical results are presented for finding the geometries of fixed volume plate fins for maximizing dissipated heat flux. The heat transfer theory used in optimization is based on approximate analytical solutions of conjugated heat transfer, which couple...

... geometry of a complex assembly of fins, i.e., an assembly where there is a cavity between the two branches of the T-Y-assembly of fins and two additional extended surfaces. The global thermal resistance of the assembly is minimized four times by geometric optimization subject to the following constraints...

...Pouria Ahmadi; Hassan Hajabdollahi; Ibrahim Dincer In the present work, a thermal modeling is conducted for optimal design of compact heat exchangers in order to minimize cost and entropy generation. In this regard, an ε − NTU method is applied for estimation of the heat exchanger pressure drop...

.... It is also demonstrated that the classical temperature distribution and heat transfer rate from the two-dimensional isotropic pin fin introduced earlier in literature can easily be recovered from the general solutions presented in this paper. Furthermore, dimensionless optimization results are presented...