Experimental investigation on heat transfer augmentation of solar air heater using shot blasted V-corrugated absorber plate

Poongavanam, Ganesh Kumar; Panchabikesan, Karthik; Leo, Anto Joseph Deeyoko; Velraj, R.

doi:10.1016/j.renene.2018.04.056

Cited by 95 publications

(22 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Useful heat gain depends on solar radiation and outlet air temperature, and mass flow rate, clearly shown in equation (9). Both mass flow rate and outlet air temperature are interring linked one.…”

Section: Useful Energy Gainmentioning

confidence: 98%

“…They said that the friction factor increased with the Reynolds number and the maximum friction factor value obtained in two continuous transverse ribs between the truncated ribs arrangement. Poongavanam et al 9 studied the rate of heat transfer and friction characteristics of the solar air heater by modifying its surface. They found that the maximum Nusselt number and friction factor values in the modified air heater over the convention solar air heater.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

Rajendran¹,

Ramasubbu²,

Karthick

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

An experimental study has been carried out to enhance a solar air heater’s performance by integrating artificial roughness through baffles on the absorber plate. In this paper, the thermal and energy matrices analysis of a Solar Air Heater (SAH) roughened with V up perforated baffles have been investigated. The effect of various mass flow rates on the SAH was analyzed with and without baffles. Experimental outputs like outlet air temperature, useful energy (heat) gain and thermal efficiency were evaluated to confirm the performance improvement. The baffled absorber plate SAH was found to give the maximum thermal efficiency and useful energy gain of 89.3% and 1321.37 W at a mass flow rate of 0.0346 kg/s, 13% and 12% higher than SAH without baffle. This result showed that the V up-shaped ribs in flow arrangement provide better thermal performance than smooth plate SAH for the parameter investigated. Energy matrices analysis and carbon dioxide mitigation of the SAH system were also analyzed.

show abstract

Section: Useful Energy Gainmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

Rajendran¹,

Ramasubbu²,

Karthick

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

show abstract

“…205 For development of novel NNRTIs, new technologies with orthogonal HTS methods will provide a strong basis for rapid screening of large chemical libraries. 206 Additionally, computational approaches including QSAR, 167 virtual screening 207 , prediction of pharmacologically important properties, and the estimation of binding affinities 208 will certainly contribute to the rapid development of future anti-viral drugs against HIV infection.…”

Section: Future Design Perspectivementioning

confidence: 99%

The Journey of HIV-1 Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs) from Lab to Clinic

Vanangamudi²,

et al. 2018

View full text Add to dashboard Cite

Human immunodeficiency virus (HIV) infection is now pandemic. Targeting HIV-1 reverse transcriptase (HIV-1 RT) has been considered one of the most successful targets for the development of anti-HIV treatment. Among the HIV-1 RT inhibitors, non-nucleoside reverse transcriptase inhibitors (NNRTIs) have gained a definitive place due to their unique antiviral potency, high specificity and low toxicity in antiretroviral combination therapies used to treat HIV. Till now, >50 structurally diverse classes of compounds have been reported as NNRTIs. Among them, six NNRTIs were approved for HIV-1 treatment, namely, nevirapine (NVP), delavirdine (DLV), efavirenz (EFV), etravirine (ETR), and rilpivirine (RPV), and doravirine (DOR). In this perspective, we focus on the six NNRTIs and lessons learned from their journey through development to clinical studies. It demonstrates the obligatory need of understanding the physicochemical and biological principles (lead optimization), resistance mutations, synthesis and clinical requirements for drugs.

show abstract

“…S-shaped baffles [9] have also been reported to enhance heat transfer considerably through turbulence augmentation. Use of corrugated absorber plate has also been reported such as sinusoidal corrugation [10], V-corrugation [11] and slitperforated corrugation [12]. The sinusoidal corrugation achieved an increase of about 12.5% thermal efficiency as compared to smooth duct owing to significant flow disturbances underneath the absorber plate due to corrugations.…”

Section: Introductionmentioning

confidence: 96%

CFD analysis for thermal performance augmentation of solar air heater using deflector ribs

Venkatesh

Kumar

Madhwesh

et al. 2020

JMES

View full text Add to dashboard Cite

This paper presents the effect of deflector ribs on the thermal performance of flat plate solar air heater using Computational Fluid Dynamics (CFD) methodology. The analysis is carried out using two-dimensional computational domain for the Reynolds number range of 6000-18000. RNG k-є turbulence model is used to capture the turbulence characteristics of the flow. The deflector rib has a cross-section of isosceles triangle and is placed transversely with respect to the flow. The distance between consecutive ribs is varied as 40mm, 80mm, 160mm and 320mm while the air gap height is varied as 2mm, 3mm, 5mm and 10mm. The numerical model is validated against the well-known correlation of Dittus-Boelter for smooth duct. The simulation results reveal that the presence of deflector ribs provide augmented heat transfer through flow acceleration and enhanced turbulence levels. With reference to smooth duct, the maximum achieved heat transfer improvement is about 1.39 times for the inter-rib distance of 40mm and an air gap height of 3mm while the maximum fiction factor achieved was about 3.82 times for pitch value of 40mm and air gap height of 3mm. The highest thermal enhancement factor is achieved for the pitch value of 320mm and an air gap height of 3mm at Re=6000. The air gap height value of 10mm exhibits thermal enhancement factor values lesser than 1.0 and hence is not recommended for use as heat transfer enhancement device for the entire Reynolds number range used in the analysis. The pitch value of 320 mm exhibits thermal enhancement factor greater than 1.0 for almost all the Reynolds number range used in the analysis and varies between 0.93 and 1.07.

show abstract

Experimental investigation on heat transfer augmentation of solar air heater using shot blasted V-corrugated absorber plate

Cited by 95 publications

References 49 publications

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

Performance analysis of domestic solar air heating system using V-shaped baffles – An experimental study

The Journey of HIV-1 Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTIs) from Lab to Clinic

CFD analysis for thermal performance augmentation of solar air heater using deflector ribs

Contact Info

Product

Resources

About