Results 21 to 30 of about 314,237 (308)
Energies, 2022 Evaporators used in organic Rankine cycles (ORC) are designed using existing flow boiling correlations that are mainly based on HVAC&R data. However, the ORC evaporators employed in the industry typically have larger diameters and operational conditions ...
Alihan Kaya +2 more
doaj +1 more source
A comparison with the three-zone model for flow boiling heat transfer in small diameter tubes [PDF]
, 2006 Flow boiling heat transfer experimental results, obtained in two stainless steel tubes of internal diameter 4.26 mm and 2.01 mm using R134a as the working fluid, indicate that the local heat transfer coefficient increases with heat flux and is ...
Karayiannis, TG +2 more
core +1 more source
Experimental Study of Subcooled Flow Boiling on Heterogeneous Wetting Surface
Zhileng xuebao, 2023 With the recent increase in power density and miniaturization of various equipment, the requirements for compactness and efficiency of heat exchangers become increasingly stringent. Micro-structured surfaces have a significant impact on flow patterns and
Sun Jia, Lin Yuhao, Li Wei
doaj
Boiling Synchronization in Two Parallel Minichannels—Image Analysis
Energies, 2020 In this paper, the boiling synchronization of two-phase flow patterns in two parallel minichannels of 1 mm in diameter with connected compressible volumes was analyzed. The analysis was performed using images recorded with a high-speed camera. The degree
Gabriela Rafałko +3 more
doaj +1 more source
Parameter Study of Boiling Model for CFD Simulation of Multiphase-Thermal Flow in a Pipe
한국해양공학회지, 2021 The demand for eco-friendly energy is expected to increase due to the recently strengthened environmental regulations. In particular, the flow inside the pipe used in a cargo handling system (CHS) or fuel gas supply system (FGSS) of hydrogen transport ...
Soh-Myung Chung +4 more
doaj +1 more source
FLOW BOILING IN VERTICAL DOWN-FLOW [PDF]
Proceeding of International Heat Transfer Conference 9, 1990 An experimental program has been conducted to investigate the onset of Ledinegg instability in vertical down-flow. For three size uniformly heated test sections with L/D ratios from 100 to 150, the pressure drop under subcooled boiling conditions has been obtained for a wide range of operating parameters.
Dougherty, T. +6 more
openaire +1 more source
Characteristics of onset of boiling under downward flow condition
Nihon Kikai Gakkai ronbunshu, 2020 Understanding of the onset of boiling plays an important role in the design of boiling equipment. Therefore, many studies have been reported so far, but most of these concerned with the upward flow condition.
Takatoshi KAMEDA +2 more
doaj +1 more source
Numerical study of vapor bubble effect on flow and heat transfer in microchannel [PDF]
, 2012 Flow boiling in a microchannel is characterized by nucleation and dynamic behavior of vapor bubbles in the channel. In the present study, the effect of vapor bubble on fluid flow and heat transfer in a microchannel is investigated via lattice Boltzmann
Dong, Zhiqiang +3 more
core +1 more source
EnergiesThe precise design of heat exchangers in automobile air conditioning systems for more sustainable electric vehicles requires an enhanced assessment of CFD mechanistic models for the subcooled boiling flow of pure eco-friendly refrigerant.
Nishit Shaparia +5 more
doaj +1 more source
Quantum Beam Science, 2021 Recent studies have shown that the presence of dissolved salts in water can exhibit peculiar flow boiling and two-phase flow regimes. Two-phase flow and convective flow boiling are typically characterized with the help of void fraction measurements.
Seth Eckels +5 more
doaj +1 more source