Interplay of fluids mixing and heat transfer in a dual-loop ORC direct contact heat exchanger used for waste heat utilization

Q Xiao, W Luo, J Huang, J Xu… - Proceedings of the …, 2020 - journals.sagepub.com
By bringing two immiscible fluids at different temperatures into a direct contact heat
exchanger (DCHE), bubble swarms are produced in the dual-loop ORC direct contact …

A novel approach for measuring bubbles uniformity and mixing efficiency in a direct contact heat exchanger

Y Fei, Q Xiao, J Xu, J Pan, S Wang, H Wang, J Huang - Energy, 2015 - Elsevier
This paper presents a straightforward method for assessing the uniformity and mixing time of
bubbles based on uniform design in a direct contact heat exchanger. The evolution of …

Orientation effect of discrepancy measure on quantification of bubble swarm patterns in a direct-contact boiling heat transfer process

Q Xiao, J Zhang, X Zhu, K Yang… - International Heat …, 2018 - ihtcdigitallibrary.com
There was a strongly synergy association between the flow behaviors of bubble swarm
patterns and heat transfer performance from the viewpoint of experimental analysis. In order …

Measure of bubble non-uniformity within circular region in a direct-contact heat exchanger

Q Xiao, J Pan, Z Lv, J Xu, H Wang - International Journal of Heat and Mass …, 2017 - Elsevier
The study of bubble swarm distributions in a direct-contact heat exchanger was addressed
both theoretically and experimentally. But recently developed approach based on uniform …

Quantification and correlation analysis of bubble characteristics and heat transfer performance in direct contact heat exchanger

R Shen, Z Fan, J Xu, B Li, H Wang - Applied Thermal Engineering, 2024 - Elsevier
In this work, a combination of morphological processing and watershed algorithm is
proposed to measure bubble size, based on which an improved frame difference method is …

Visualized Measurement on Evolution of Bubble Patterns in a Direct-Contact Heat Exchanger

Q Xiao, S Wang, J Xu, H Wang - ASME Power …, 2017 - asmedigitalcollection.asme.org
Direct-contact heat exchanger involves the exchange of heat between two immiscible fluids
at different temperatures. Considering that there is a linear relationship between the flow …

Characterization of bubble population morphology in direct contact heat transfer process under different flow regimes and its influence on heat transfer performance

Q Zhang, Z Li, B Li, J Xu, H Wang - Experimental Thermal and Fluid …, 2023 - Elsevier
In this study, the effect of bubble population morphological characteristics and heat transfer
performance in the direct contact boiling heat transfer process under two different flow …

Direct-contact heat exchanger

H Wang, Q Xiao, J Xu - Heat Exchangers-Design, Experiment …, 2017 - books.google.com
Direct-contact heat transfer involves the exchange of heat between two immiscible fluids by
bringing them into contact at different temperatures. There are two basic bubbling regimes in …

Quantifying the synergy of bubble swarm patterns and heat transfer performance using computational homology

J Huang, J Xu, X Sang, H Wang, H Wang - International Journal of Heat …, 2014 - Elsevier
This paper proposes a novel method to quantify the synergy of bubble swarm patterns and
heat transfer performance in a direct-contact heat exchanger (DCHE) by using …

Experimental investigation of bubble group and temperature distribution uniformity in the direct contact boiling heat transfer process

B Li, Z Li, P Yang, J Xu, H Wang - Experimental Thermal and Fluid Science, 2022 - Elsevier
In the present study, a new method is proposed to measure the uniformity of temperature
distribution and the phase distribution in direct contact boiling heat transfer. The proposed …