Heat transfer and pressure drop performance of solar glycol/activated carbon based nanofluids in shot peened double pipe heat exchanger

Ganesh Kumar Poongavanam, Balaji Kumar, Sakthivadivel Duraisamy, Karthik Panchabikesan and Velraj Ramalingam

Renewable Energy, 2019, vol. 140, issue C, 580-591

Abstract: The present study aims at analyzing the heat transfer and pressure drop characteristics the by determination of improved Nusselt number in a double pipe heat exchanger, whose outer surface of the inner tube is modified through the shot peening process. The attained convective heat transfer coefficient (CHTC) and pressure drop of water flow in the heat exchanger with this modified surface are first measured and compared with a high conductivity copper tube construction. The study is to analyze the variations in CHTC and the pressure drop of the activated carbon (AC) - solar glycol (SG) based nanofluid. The experiments stimulated nanomaterials volume concentrations of the nanofluids such as 0.2%, 0.4% and 0.6%. The Nusselt numbers at mass flow variation rates in the range of 0.04, 0.055 and 0.08 kg/sec with shot peened heat exchanger. The presence of AC nanomaterials in the SG enhances the Nusselt number by 26.25%, 40.79%, and 57.06% for 0.2, 0.4 and 0.6% volume concentrations respectively, at a mass flow rate of 0.04 kg/sec in the shot peened heat exchanger. The average CHTC of the nanofluid containing 0.6% of AC nanomaterials is noted to be augmented to a maximum of 71% at 0.04 kg/sec.

Keywords: Shot peened heat exchanger; Activated carbon; Solar glycol; Nusselt number; Friction factor; Thermal performance factor (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148119303647
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:140:y:2019:i:c:p:580-591

DOI: 10.1016/j.renene.2019.03.059

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().