Heat transfer rate of swirling impinging jets issuing from a twisted tetra-lobed nozzle

Wongcharee, K.; Kunnarak, K.; Chuwattanakul, V.; Eiamsa-ard, Smith

doi:10.1016/j.csite.2020.100780

Cited by 15 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Nusselt number over the heated plate data from the experimental jet impinging system was collected and a verification test was performed by comparing the outcomes of the CIJ with those reported by Sun et al [13], Nanan et al [34], and Wongcharee et al [35] under similar operating conditions. The validation test was conducted with Re ranging from 5000 to 20,000 using DI water as the cooling agent.…”

Section: Validation Test Of Experimental Approachmentioning

confidence: 99%

Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling

2022

View full text Add to dashboard Cite

Nanofluids have become increasingly salient in heat transfer applications due to their promising properties that can be tailored to meet specific needs. The use of nanofluids in jet impingement flows has piqued the interest of numerous researchers owing to the significant heat transfer enhancement, which is vital in the technological dependence era in every aspect of life, particularly in engineering applications and industry. The aim of this current work is to investigate the effect of hybrid nanofluids concentration and swirling flow on jet impingement cooling through experimental approach. The hybrid nanofluids are prepared through a two-step method and the characterization process is carried out to study the stability and morphological structure of the sample prepared. The prepared hybrid nanofluids are then used as a cooling agent to evaluate the heat transfer performance of jet impinging system. The experimental investigation compares the performance of swirling impinging jets (SIJs) with conventional impinging jets (CIJs) under various jet-to-plate distance (H/D) ratios and nanofluid concentrations. The effects of adding surfactant on nanofluids are also examined. The heat transfer performance of ZnO/water and CuO/water mono-nanofluids are used as comparison to ZnO-CuO/water hybrid nanofluid. The results show that the thermal performance of ZnO-CuO/water hybrid nanofluid is better than that of the mono-nanofluids. Furthermore, as the mass fraction increases, the heat transfer rates improve. The effect of heat transmission by swirling impinging jets is better than that of conventional impinging jets under similar operating conditions. At H/D = 4, Re = 20,000 and hybrid nanofluid concentration at 0.1% under SIJ is observed to have the highest overall Nusselt number.

show abstract

Section: Validation Test Of Experimental Approachmentioning

confidence: 99%

Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling

2022

View full text Add to dashboard Cite

show abstract

“…A swirling impingement jet in an inclined position was more effective in terms of cooling performance as compared to circular impingement. An experimental investigation was performed by Wongcharee et al [91] to study the impact of a swirling jet delivered through a twisted tetra-lobed nozzle on heat transfer augmentation (see Figure 8). For comparison, circular and tetra-lobed nozzles were also studied.…”

Section: Excited Jetsmentioning

confidence: 99%

Heat Transfer Augmentation through Different Jet Impingement Techniques: A State-of-the-Art Review

et al. 2021

View full text Add to dashboard Cite

Jet impingement is considered to be an effective technique to enhance the heat transfer rate, and it finds many applications in the scientific and industrial horizons. The objective of this paper is to summarize heat transfer enhancement through different jet impingement methods and provide a platform for identifying the scope for future work. This study reviews various experimental and numerical studies of jet impingement methods for thermal-hydraulic improvement of heat transfer surfaces. The jet impingement methods considered in the present work include shapes of the target surface, the jet/nozzle–target surface distance, extended jet holes, nanofluids, and the use of phase change materials (PCMs). The present work also includes both single-jet and multiple-jet impingement studies for different industrial applications.

show abstract

The influence of flow blockage elements at the orifice exit on the hydrodynamic and thermal performances of impinging square jets - an experimental investigation

Muvvala

Bandhu

2023

Heat Mass Transfer

View full text Add to dashboard Cite

Heat transfer rate of swirling impinging jets issuing from a twisted tetra-lobed nozzle

Cited by 15 publications

References 23 publications

Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling

Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling

Heat Transfer Augmentation through Different Jet Impingement Techniques: A State-of-the-Art Review

The influence of flow blockage elements at the orifice exit on the hydrodynamic and thermal performances of impinging square jets - an experimental investigation

Contact Info

Product

Resources

About