Search

Your search keyword '"Ansu, A. K."' showing total 19 results
Start Over Author "Ansu, A. K."
19 results on '"Ansu, A. K."'

13. Experimental Analysis of Double Pipe Heat Exchanger with V-cut Twisted Tape Inserts using PCM Dispersed Nanofluids.

Author

Singh, S. K., Kumar, A., Singh, P., and Ansu, A. K.

Subjects
HEAT pipes, HEAT exchangers, NANOFLUIDS, PHASE change materials, NUSSELT number, WORKING fluids
Abstract

The performance of a double tube heat exchanger with V-cut twisted tape inserts (VCTT) and phase change material (PCM) dispersed nanofluid is investigated experimentally. The three water-based Al2O3, PCM, and Al2O3+PCM nanofluid with different concentrations (0.01-0.1% vol.) are used. The impacts of different geometric parameters, i.e., twist ratio (TR), depth ratio (DR) and width ratio (WR) of VCTT inserts on Nusselt number (Nu), friction factor (f) and entropy generation are examined. The outcomes expose that Nu and f increase as particle concentration increases and twisting ratio decreases. A higher Nu and f are generated by a higher DR or a lower WR. In all cases, the entropy generation of nanofluid is found to be lower than that of water. For all working fluids, a rise in TR, a fall in DR, and a rise in WR increases overall entropy generation. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

17. Investigation on Thermal Energy Storage Properties of Polyethylene Glycol with Hybrid Nanoparticles of Al2O3and CuO for Solar Thermal Energy Storage

Author

Pandya, Mohit, Ansu, A. K., Sharma, R. K., Tripathi, D., Tyagi, V. V., and Sari, Ahmet

Abstract

The ability to store high latent heat energy makes polyethylene glycol (PEG) one of the most promising materials in the organic phase change material (PCM) family. Nevertheless, the poor heat conductivity limits its potential to a large extent in the real time applications. In this study, polyethylene glycol (PEG2000) was incorporated with nano aluminium oxide (Al2O3) and copper oxide (CuO) composites to develop a hybrid nanomaterials based PCM with higher thermal conductivity. To accomplish the objectives of the study, six (06) samples were prepared. It was ensured that the total mass of both the nano particles remains 3% of the total mass of the sample. For characterization of the samples, FTIR, TGA, DSC, XRD techniques were used to test the thermal and chemical stability of the materials. The results show that the prepared composite has higher thermal conductivity than pure PCM and they are also chemically and thermally stable. Also, the interaction between PCM and nanoparticles is purely physical. The DSC findings showed that the developed nano enhanced PCM possess significantly high latent heat. The developed composites have the potential of being used as thermal energy storage materials for electronic board and various solar based applications.

Published
2023
Full Text
View/download PDF

19. Cultural aspects of constraints on village education by radio.

Author

Ansu-Kyeremeh, K.

Subjects
EDUCATION
Abstract

Asserts that constraints on rural Ghanaian radio educational broadcasting are largely cultural. The article also proposes the exploration of the network of indigenous village communication systems, found to be the linchpin for intra-village communication, as potential educational channels by the country's rural educators. Modernization and village education by radio; Criticisms; Radio in rural mass education in Ghana; Securing cultural sensitivity.

Published
1992
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results