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16 results on '"Ravishankar Sathyamurthy"'

4. Heat transfer and hydraulic characteristics of micro finned tube inserted with twisted tape inserts and hybrid nanofluid (CNT/Al2O3)

Author

S Jenoris Muthiya, P. Srihari Reddy, Sreenivasulu M, B. Madhu, Chandra Sekhar S, Ravishankar Sathyamurthy, and D. Mageshbabu

Subjects
0209 industrial biotechnology, Insert (composites), Materials science, 02 engineering and technology, 021001 nanoscience & nanotechnology, Industrial and Manufacturing Engineering, Friction factor, 020901 industrial engineering & automation, Nanofluid, Mechanics of Materials, Thermal, Heat transfer, General Materials Science, Tube (fluid conveyance), Composite material, 0210 nano-technology
Abstract

This paper communicates the enhancement of heat transfer, friction characteristics and thermal performance of micro finned tube fitted with Left/Right and regular insert tape inserts using CNT and ...

Published
2021

5. Optimization of Alkali Treatment Process Parameters for Kenaf Fiber: Experiments Design

Author

Nivedhitha Durgam Muralidharan, Ravishankar Sathyamurthy, and R. Sathish Kumar

Subjects
Materials science, biology, Materials Science (miscellaneous), Treatment process, 02 engineering and technology, Epoxy, 010501 environmental sciences, 021001 nanoscience & nanotechnology, Alkali metal, biology.organism_classification, 01 natural sciences, Kenaf, visual_art, visual_art.visual_art_medium, Fiber, Composite material, 0210 nano-technology, Natural fiber, 0105 earth and related environmental sciences
Abstract

Alkali treatment of natural fibers will improve the mechanical, chemical, and thermal characteristics of natural fiber reinforced epoxy composites. The influence of alkali treatment on the improvem...

Published
2020

7. Investigation and performance analysis of solar milk pasteurisation system

Author

Hitesh Panchal, R.N. Patel, and Ravishankar Sathyamurthy

Subjects
Renewable Energy, Sustainability and the Environment, business.industry, 020209 energy, Pasteurization, 02 engineering and technology, Building and Construction, Concentric tube heat exchanger, law.invention, 020401 chemical engineering, law, 0202 electrical engineering, electronic engineering, information engineering, Environmental science, 0204 chemical engineering, Process engineering, business
Abstract

The main aim of this research work is to test and evaluate the performance of solar milk pasteurisation system. To evaluate the performance of solar milk pasteurisation system, a solar hot water sy...

Published
2019

8. Economic and exergy investigation of triangular pyramid solar still integrated to inclined solar still with baffles

Author

Yazan Taamneh, A. Muthu Manokar, Abd Elnaby Kabeel, Thirugnanasambantham Arunkumar, Hitesh Panchal, Ravishankar Sathyamurthy, D. Mageshbabu, R. Bharathwaaj, P. Naveen Kumar, and S.A. El-Agouz

Subjects
Exergy, Payback period, Renewable Energy, Sustainability and the Environment, business.industry, 020209 energy, Yield (finance), Active mode, Baffle, 02 engineering and technology, Building and Construction, Solar still, 020401 chemical engineering, 0202 electrical engineering, electronic engineering, information engineering, Exergy efficiency, Economic analysis, Environmental science, 0204 chemical engineering, Process engineering, business
Abstract

This paper presents the detailed exergy and economic investigation of triangular pyramid solar still under passive and active mode of operation. For validation, experiments were carried out...

Published
2018

9. Passive solar still: recent advancements in design and related performance

Author

Anuradha Awasthi, Kanchan Kumari, Hitesh Panchal, and Ravishankar Sathyamurthy

Subjects
Environmental Engineering, 020401 chemical engineering, 0211 other engineering and technologies, 021108 energy, 02 engineering and technology, 0204 chemical engineering, Pollution, Waste Management and Disposal, Water Science and Technology
Published
2018

10. Annual performance analysis of a single-basin passive solar still coupled with evacuated tubes: comprehensive study in climate conditions of Mahesana, Gujarat

Author

A.K. Pandey, D. K. Patel, Ravishankar Sathyamurthy, Mahesh Kumar, Hitesh Panchal, and Thirugnanasambantham Arunkumar

Subjects
Engineering, Brackish water, Renewable Energy, Sustainability and the Environment, business.industry, 020209 energy, Environmental engineering, 02 engineering and technology, Building and Construction, Structural basin, Solar energy, Saline water, Solar still, law.invention, 020401 chemical engineering, law, Physics::Space Physics, 0202 electrical engineering, electronic engineering, information engineering, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Passive solar building design, 0204 chemical engineering, business, Distillation, Physics::Atmospheric and Oceanic Physics
Abstract

A solar still is very simple device to convert available brackish or saline water into drinkable water by use of solar energy. But due to its lower distillate output, it is not used widely for indu...

Published
2017

11. Experimental analysis of single-basin solar still with porous fins

Author

Hitesh Panchal and Ravishankar Sathyamurthy

Subjects
Engineering, Meteorology, Renewable Energy, Sustainability and the Environment, business.industry, 020209 energy, Mechanical engineering, 02 engineering and technology, Building and Construction, Structural basin, Solar still, 020401 chemical engineering, 0202 electrical engineering, electronic engineering, information engineering, 0204 chemical engineering, business, Porosity
Abstract

The present research paper explains the experimental analysis of the single-basin solar still with attachment of porous fins on the absorber plate. Here, experiments have been conducted on the sing...

Published
2017

12. Enhancing the thermal performance of AL2O3/DI water nanofluids in micro-fin tube equipped with straight and left-right twisted tapes in turbulent flow regime

Author

D. Mageshbabu, P.K. Nagarajan, Ravishankar Sathyamurthy, and S. Suseel Jai Krishnan

Subjects
Materials science, Turbulence, 020209 energy, Thermodynamics, 02 engineering and technology, Mechanics, Concentric tube heat exchanger, 01 natural sciences, 010305 fluids & plasmas, Fin (extended surface), Friction factor, Nanofluid, Control and Systems Engineering, 0103 physical sciences, Thermal, Heat transfer, 0202 electrical engineering, electronic engineering, information engineering, Tube (fluid conveyance), Electrical and Electronic Engineering, Instrumentation
Abstract

This article communicates the thermal performance, heat transfer rate, and friction factor of Al2O3/DI water nanofluids at different concentrations in a micro-finned tube with tube helical inserts ...

Published
2017

13. Theoretical analysis of a triangular pyramid solar still integrated to an inclined solar still with baffles

Author

P.K. Nagarajan, D.G. Harris Samuel, P. Naveen Kumar, and Ravishankar Sathyamurthy

Subjects
Water mass, Daytime, Engineering, Yield (engineering), Meteorology, Renewable Energy, Sustainability and the Environment, business.industry, 020209 energy, Baffle, Geometry, 02 engineering and technology, Building and Construction, Thermal energy storage, Solar still, 0202 electrical engineering, electronic engineering, information engineering, business
Abstract

This paper presents the theoretical analysis of a triangular pyramid solar still integrated to an inclined solar still with baffles. The performance of the solar still depends on water mass inside the basin. The yield of triangular pyramid solar still is increased by integrating it to an inclined solar still with baffles. Analytically, the water mass inside the basin is increased from 20 to 100 kg. Theoretical results show that the increase in water mass decreases the yield from 6% to 46% during the daytime, whereas due to thermal energy storage at higher mass, the yield during the nighttime increases from 46% to 86% with integration. Similarly, a triangular pyramid solar still is theoretically analysed for its performance.

Published
2016

14. Effect of forced cover cooling technique on a triangular pyramid solar still

Author

Nagarajan P.K., Elsayed Elagouz, Arunkumar Thirugnanasambantham, Ravishankar Sathyamurthy, and Hindustan Institute of Technology and Science HITS

Subjects
Water mass, Yield (engineering), Meteorology, Renewable Energy, Sustainability and the Environment, 020209 energy, 02 engineering and technology, Building and Construction, Mechanics, Solar still, Wind speed, Forced convection, Fresh water, 0202 electrical engineering, electronic engineering, information engineering, Environmental science
Abstract

In the present study a triangular pyramid solar still is theoretically analysed by flowing air over the entire surface of the glass from the top to analyse the improvement in yield of fresh water. The effect of water mass and wind velocity was theoretically analysed. The results show that there is a significant improvement in the yield of fresh water to about 10.1 kg/m2 with a maximum velocity of air (U = 40 m/s) at a least water mass of 20 kg inside the basin. For practical cases the yield of fresh water depends on naturally occurring wind velocity and the results show that the improvement in yield is 104% with an increase in velocity from 0.5 to 4 m/s.

Published
2016

15. Geometrical variations in solar stills for improving the fresh water yield—A review

Author

Thirugnanasambantham Arunkumar, Ravishankar Sathyamurthy, D.G. Harris Samuel, and P.K. Nagarajan

Subjects
Pollution, 020209 energy, media_common.quotation_subject, Yield (finance), Environmental engineering, Ocean Engineering, 02 engineering and technology, Solar still, Potable water, Fresh water, 0202 electrical engineering, electronic engineering, information engineering, Environmental science, Solar desalination, Groundwater, Water Science and Technology, media_common
Abstract

Water consumption by humanity is one of the major yardsticks to assess its civilization. Humans depend on groundwater sources for drinking. Some of these underground water sources cannot be used for drinking due to pollution. To solve the issues related to drinking water, several methods are employed, and a promising one is solar desalination. This paper communicates a review of different geometrical shapes of solar still. The present study concludes that the geometry in the solar still significantly influences the yield of fresh water.

Published
2016

16. Effect of parabolic solar energy collectors for water distillation

Author

Abdul Jabbar N. Khalifa, Ravishankar Sathyamurthy, Shahriar Shams, Thirugnanasambantham Arunkumar, David Denkenberger, Ramalingam Velraj, and Amimul Ahsan

Subjects
Engineering, business.industry, 020209 energy, Nuclear engineering, Ocean Engineering, 02 engineering and technology, Concentrator, Solar energy, Solar still, Pollution, Solar mirror, law.invention, Photovoltaic thermal hybrid solar collector, Solar cell efficiency, Optics, law, 0202 electrical engineering, electronic engineering, information engineering, business, Distillation, Nonimaging optics, Water Science and Technology
Abstract

This research article briefly summarizes the augmentation of condensate output using concentrators. This study compares a single-slope solar still, a compound conical concentrator (CCC) solar still, and a compound parabolic concentrator–tubular solar still (CPC–TSS). The effect of miniaturization of the absorber (increase in the concentration factor) and some modifications in the solar still assembly show a remarkable increase in output. The measured daily yield rate per square meter of absorber area of the single slope solar still, CCC solar still, and CPC–TSS is 2,100, 18,000, and 6,100 ml, respectively. It was found that the CCC solar still provides the maximum yield.

Published
2015

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