...Proceedings of the ASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer MNHMT2024 August 5-7, 2024, Nottingham, UK MNHMT2024-131891 HEAT TRANSFER AND FLOW CHARACTERISTICS OF FLOW BOILING IN MANIFOLD MICROCHANNEL Jinjin Xu School of Energy and Power Engineering, Shandong...

...Proceedings of the ASME 2024 7th International Conference on Micro/Nanoscale Heat and Mass Transfer MNHMT2024 August 5-7, 2024, Nottingham, UK MNHMT2024-131142 HEAT TRANSFER CHARACTERISTICS OF LIQUID-LIQUID TAYLOR FLOWS IN FLAT MINI CHANNELS Naixiang Zhou School of Energy and Power Engineering...

... to experimentally investigate the thermal-hydraulic performance of the airfoil-fin PCHE with a hydraulic diameter of 0.87 mm. The heat transfer capacity of the PCHE is beyond 175 kW and the surface-areato-volume ratio is larger than 1500 m2/m3. The experimental data is obtained at the Reynolds number (Re) ranging...

... studied and applied in various areas such as medicine, electronics, and heat transfer systems. However, conventional synthesis methods to produce metallic nanoparticles face challenges such as instability and environmental concerns, prompting the exploration of greener synthesis methods. Green synthesis...

... elements directly into the OoC devices has been explored. The aim of the present work is to study the heat transfer from a generating element positioned at the bottom of the device and the fluid flow behavior within the OoC. To this end, computational fluid dynamics (CFD) simulations were performed using...

... and compact. This paper reports local heat flux and local heattransfer coefficient during flow boiling heat transfer of zeotropic refrigerant mixture R456A in microchannels using an inverse measurement method. The test section is made of two aluminium blocks. Ten parallel horizontal microchannels are machined...

... Abstract In order to study the effect of liquid-solid interaction and surface temperature on drag reduction and heat transfer, non-equilibrium molecular dynamics simulation is performed to investigate the density profile, velocity profile, velocity slip and temperature profile of fluid...

... Abstract The heat flux in electronics requires the thermal management of printed circuit boards (PCBs) using two-phase cooling methods. In this study, an integrated ceramic heat transfer device, the alumina flat-plate oscillating heat pipe, is developed. The device was fabricated by pressing...

... Abstract This study numerically investigated the condensation heat transfer and flow characteristics of refrigerants R134a in rectangular minichannels. Three-dimensional simulations were carried out at different mass flux values, vapor qualities and gravity conditions through using the VOF...

... Abstract A significantly higher heat transfer coefficient can be achieved through thin-film evaporation. Nanofluids also have significant enhancements in heat transfer. In the current investigation, based on the principle of conservation of momentum and the Young-Laplace equation, considering...

... Abstract Most plate heat exchangers (PHEs) have hydraulic diameters in the range of 2∼5 mm and show characteristics of both macro-channels and micro-channels. Both gravity and surface tension have non-negligible influences and determine the heat transfer and frictional pressure drop...

... Abstract Corrugated plate heat exchangers are increasingly used in two-phase flow applications for their flexible and compact size and the efficient heat transfer performance. This paper presents a review of recent studies on the subject and creates a database containing 533 data points from...

... that the later stage of bubble growth in a binary mixture is controlled by both mass diffusion and heat transfer. The bubble growth characteristics strongly depend on the initial mass fraction of ethanol. Within a large concentration range, a higher content of ethanol is adverse to bubble growth at a constant...

... Abstract Understanding flow and heat transfer in porous media is a matter of prime concern for micro devices. In this work, slip flow and heat transfer of gaseous fluid through the confined porous media is numerically simulated using a multiple-relaxation-time lattice Boltzmann method...

... requirements of computer CPU. By comparing the heat transfer perform of the two heat sinks under three conditions: the top wall temperature of the heat sink, the wall temperature of the heat sink and the temperature difference between the inlet and outlet of hot water, it can be found that the heat transfer...

... Abstract An experimental study on the flow boiling heat transfer in a horizontal annular passage outside the single tube using R410A. The tested tubes contain a smooth tube, a 1EHT tube (dimpled tube) and a herringbone micro-fin tube with the same outside diameter of 12.70 mm. Tests were...

... It is requested to develop a microscale and high performance heat exchanger for small size energy equipments. The heat transfer performance of the water film on the condensing coils of the microscale evaporative condenser was studied for a single-stage compressed refrigeration cycle system...

... performed at different steam mass fluxes ranged from 128 kg m −2 s −1 to 320 kg m −2 s −1 , while the inlet temperature of cooling water was fixed at 30°C or 50°C. Characteristics of condensation heat transfer and pressure drop in microchannels were measured and discussed. The temperature of Pyrex glass...

... In this paper the experimental flow boiling heat transfer results of a minichannel are presented. A series of experiments was conducted to measure the heat transfer coefficients in a minichannel made of stainless steel (AISI 316) having an internal diameter of 1.7mm and a uniformly heated length...

... (δ¯) is 6.5% at the gravity conditions and 21.5% at zero-gravity conditions when the Re v0 changes from 8000 to 15000. Marangoni condensation Heat transfer film condensation Numerical simulation Copyright © 2009 by ASME 1 MNHMT2009­18020 THE EFFECT OFTHE MARANGONI FLOWON THE FILM...