...EXPERIMENTAL STUDY OF SATURATED FLOW BOILING IN VERTICAL NARROW MICROCHANNEL Yuhao Lin1, Kan Zhou1, Junye Li1,2, Wei Li1 Hua Zhu1, Zhengjiang Zhang1, Jincai Du1 1. Department of Energy Engineering, Zhejiang University 2. Department of Energy Engineering, Collaborative Innovation Center of Advanced...

... The thermal management of integrated circuits becomes more and more serious since the density of transistors grows gradually. Recently, a new cooling method is dedicated to develop microchannel heat sink with high integrated and high cooling efficiency. In view of above purpose, the heat...

...MARANGONI ASYMMETRICAL INSTABILITY IN A T-JUNCTION MICROCHANNEL WITH AN OPEN OUTLET Zhenhai Pan Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, China Hao Wang* Department of Energy and Resources Engineering, College of Engineering, Peking...

.... two phase flow microchannel flow patterns pressure drop void fraction bubble velocity EXPERIMENTAL INVESTIGATION OF TWO PHASE FLOW IN MICRO-SIZED CIRCULAR TUBES Y.S. LIM Division of Aerospace Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University...

...ONSET OF BENARD-MARANGONI INSTABILITY ON A FLAT MENISCUS IN A MICROCHANNEL Zhenhai Pan Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, China Hao Wang* Department of Energy and Resources Engineering, College of Engineering, Peking University...

... 18 10 2010 In this study, a parametric investigation on mixing of two fluids in a modified Tesla microchannel, has been preformed. Modified Tesla micromixer applies both flow separation and vortices string principles to enhance the mixing. The fluid stream splits into two sub-streams...

... way to manufacture a resistive bulk microheater and high-aspect-ratio microchannel. The electro-thermal property of the proposed microheater has been characterized and verified by finite element analysis and experiment. According to the design concept and experimental results, the largest temperature...

... by syringe pumps to flow side by side in a straight rectangular microchannel. External electric fields are applied on the two sheath streams. Under the constant inlet volumetric flowrates, the sample stream is delivered to the desired outlet ports using electroosmotic effect. The liquid fractions of sheath...

.... Acoustic actuation Bubble generation Mixing Microchannel High speed photography 1 Copyright © 2009 by ASME Proceedings of MNHT2009 ASME 2009 2nd Micro/Nanoscale Heat & Mass Transfer International Conference December 18-21, 2009, Shanghai, China MNHMT2009-18125 ACOUSTICALLY INDUCED BUBBLES...

...% interrogation spot overlapping by using μPIV. The most significant deviation is about 5% between the experimental and simulation results. Finally we used Stokes-Einstein equation to estimate the entrapment probability of nanoparticles with various particle sizes and channel geometries. Microchannel...

... Experiment was conducted to study steam condensation in horizontal microchannel etched on silicon wafer and bonded by a Pyrex glass plate from the top. The trapezoidal microchannel had a top width of 7943.11μm and depth of 81.77μm with hydraulic diameter of 161.49μm. The experiments were...

... The fractal characterization of the topography of rough surfaces by using Cantor set structures is introduced in this paper. Based on the fractal Cantor surface, a model of laminar flow in rough microchannels is developed and numerically analyzed to study the characterization of surface...

... of channel. Microchannel Lattice Boltzmann BGK method Micro-PIV 1 Copyright © 2009 by ASME Proceedings of MNHMT2009 ASME 2009 2nd Micro/Nanoscale Heat & Mass Transfer International Conference December 18-22, 2009, Shanghai, China MNHMT2009-18392 SIMULATION AND EXPERIMENTAL INVESTIGATION OF MICRO...

... The flow and heat transfer characteristics of water in smooth rectangular microchannels had been simulated numerically by using CFD method. Computational results showed that the ratio of the channel length and hydraulic diameter, hydraulic diameter, the ratio of height and width of microchannels...

... First and second order slip flow models in rectangular microchannels heated at constant and uniform wall temperature are studied. The velocity and temperature profiles for hydrodynamically and thermally developed incompressible slip flow regime available in literature are used. The average...

... Two type condensers of R22 residential air conditioning systems were investigated in this study. Two R22 residential air-conditioning systems, one with a microchannel condenser and the other with a round-tube condenser, were examined experimentally, while the other components of the two systems...

... The present work experimentally investigates the thermal effects of a synthetic jet actuator on the heat transfer performance of single-phase flow confined in a microchannel heat sink. The heat sink consisted of a single rectangular microchannel 500 μm wide, 300 μm deep and 26 mm long. Deionized...

... environment. In order to clarify the effects of acceleration, simulative accelerating experiments of flow and heat transfer performance in straight microchannel with rectangular cross section have been conducted. A test piece made of copper is machined. FC-72 is taken as coolant. Simulative accelerating...

... Roughness effects on flow and heat transfer in flat microchannels has been numerically simulated by using CFD with fluid-solid conjugate heat transfer techniques, the surface roughness has been modeled through a series triangular toothed roughness cells. In this paper, the influence...

... This paper is directed at the numerical simulation of pressure-driven nitrogen slip flow in long microchannels, focusing on conjugate heat transfer under uniform heat flux wall boundary condition. This problem has not been studied in detail despite its importance in many practical circumstances...