Condensation in Minichannels and Microchannels

- Introduction

“…The two-phase flow structure and correlations which can be used for calculation of heat transfer and pressure losses in minichannels and microchannels are presented and discussed by Garimella (2014). Currently, it is a fast-growing field of research.…”

“…On analysis of experimental data, Garimella (2014) concluded that the acceleration term is extremely small compared to the overall pressure drop. The increase of static pressure due to deceleration can be calculated as difference between dynamic pressures at outlet and inlet of the channel or part of its length: Here, G is mass velocity (or flux) of two-phase flow in the channel, kg/(m 2 · s).…”

“…Garimella (2014) has presented the comparison of results obtained by 12 methods proposed by different researchers in the same conditions of refrigerant R134a condensation inside tube of 1 mm inner diameter. Majority of them are using Lockhart-Martinelli parameters to correlate data for adiabatic flows.…”