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Sivaraman, B.
- Study of Heat Pipe Performance Using an Aqueous Solution of N-butanol
Abstract Views :402 |
PDF Views:132
Authors
Affiliations
1 Dept. of Mechanical Engg., Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, IN
1 Dept. of Mechanical Engg., Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 3, No 6 (2010), Pagination: 702-706Abstract
An experiment is conducted to enhance the heat-transport capability of capillary assisted heat pipes with an aqueous solution of n-Butanol, and its performance is compared with that of pure water. This study uses an aqueous solution of n-Butanol having a positive surface tension gradient with temperature as a working medium with a view to accomplish an enhancement in the performance of capillary limit of heat pipe systems and operative stability. The test heat pipe is made of a copper tube with an external diameter of 22 mm, and an inner diameter of 19.6 mm. Stainless steel wick of wrapped screen structure has been used in the present study. The experiments were conducted with various heat inputs (40 W, 60 W & 80 W) and the heat pipe was kept at different inclinations of 0°, 45° and 90° with horizontal. The results show that the heat-transport capability of heat pipe with the aqueous solution of n-Butanol is higher than the water heat pipe.Keywords
Heat Pipe, Aqueous Solution of N-butanol, Surface Tension, Wrapped ScreenFull Text
References
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- Performance Analysis of Elliptical Heat Pipe Solar Collector
Abstract Views :494 |
PDF Views:254
Authors
Affiliations
1 Department of Mechanical Engineering, Annamalai University, Chidambaram-608001,TN, IN
1 Department of Mechanical Engineering, Annamalai University, Chidambaram-608001,TN, IN
Source
Indian Journal of Science and Technology, Vol 4, No 1 (2011), Pagination: 4-7Abstract
Elliptical heat pipe flat plat solar collector was designed, constructed and tested with a collector tilt angle of 11° to the horizontal. Experimental analysis of the effect of condenser length/evaporator length (Lc/Le) ratio of the heat pipe, different cooling water mass flow rates and different inlet cooling water temperature were analysed. Five numbers of elliptical heat pipes with stainless steel wick has been fabricated and used as transport tubes in the collector. Copper tube has been used as container material with methanol as working fluid of the heat pipe. These heat pipes were fixed to the absorber plate of the solar collector and the performance of elliptical heat pipe solar collector has been studied and results were compared. It has been found from the experimental trials that the elliptical heat pipe solar collector having Lc/Le ratio of 0.1764 achieved higher instantaneous efficiency.Keywords
Heat Pipe, Flat Plate Solar CollectorFull Text
References
- Abdul-Jabbar and Khalifa N (1999) Thermal performance of locally made flat plate solar collectors used as part of a domestic hot water system. Energy Conv. Mgmt. 40, 1825-1833.
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- Hussein HMS, EL-Ghetany HH and Nada SA (2006) Performance of wickless heat pipe flat plate solar collector having different pipes cross sections geometries and filling ratios. Energy Conv. Mgmt. 47, 1539-1549.
- Ismail KAR and Abogderah MM (1998) Performance of a heat pipe solar collector. Trans. ASME. 120, 51-59.
- Kulkarni NG, Kedare SB and Bandyopadhyay S (2007) Determination of design space and optimization of solar water heating systems. Solar Energy. 81, 958-968.
- Nada SA, El-Ghetany H and Hueesin HMS (2004) Performance of a two-phase closed thermosyphon solar collector with a shell and tube heat exchanger. Appl. Thermal Engg. 24, 1959-1968.
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- Experimental Investigation of an Elliptical Heat Pipe Solar Collector
Abstract Views :362 |
PDF Views:0
Authors
Affiliations
1 Assistant Professor, Department of Mechanical Engineering, Annamalai University, Annamalai Nagar, Chidambaram-608 002, Tamil Nadu, IN
2 Professor, Department of Mechanical Engineering, Annamalai University, Annamalai Nagar, Chidambaram-608 002, Tamil Nadu, IN
3 Associate Professor, Department of Mechanical Engineering, Annamalai University, Annamalai Nagar, Chidambaram-608 002, Tamil Nadu, IN
1 Assistant Professor, Department of Mechanical Engineering, Annamalai University, Annamalai Nagar, Chidambaram-608 002, Tamil Nadu, IN
2 Professor, Department of Mechanical Engineering, Annamalai University, Annamalai Nagar, Chidambaram-608 002, Tamil Nadu, IN
3 Associate Professor, Department of Mechanical Engineering, Annamalai University, Annamalai Nagar, Chidambaram-608 002, Tamil Nadu, IN
Source
International Journal of Engineering studies, Vol 4, No 1 (2012), Pagination: 15-26Abstract
In this work, experiments on elliptical heat pipe solar collector were performed to study the thermal performance of it at different inclination angle and orientation angles. An elliptical heat pipe solar collector was investigated experimentally under the field conditions of Chidambaram, India. The collector was designed, constructed, and tested to study its performance for different cooling water mass flow rates at different inlet cooling water temperatures. Elliptical heat pipe with stainless steel wick has been fabricated and used as transport tubes in the collector. Copper tube has been used as container material and methanol has been used as working fluid of the heat pipe. These heat pipes were fixed to the absorber plate of the solar collector and the performance of elliptical heat pipe solar collector was estimated and results were presented in this paper.Keywords
Heat Pipe, Flat Plate Solar Collector, Wick, Absorber Plate
References
- A.Faghri, Heat pipe Science and Technology, Taylor & Francis London, 1995.
- H.M.S. Hussein, H.H. El- Ghetany, S. A. Nada, Performance of wickless heat pipe flat plate solar collectors having different pipes cross sections geometries and filling ratios, energy conversion and management 47 (2006 )1539- 1549.
- S.A.Nada, H.H. El-Gghetany, H.M.S. Hussein, Performance of a two phase closed thrmosyphon solar collector with a shell and tube heat exchanger, Applied thermal engineering, 24 (2004) 1959- 1968.
- S.B. Rittat, x. zheo, P.S. Doherty, Developing a Theoretical model to investigate thermal performance of a thin membrane heat pipe solar collector, applied thermal engineering 25(2005) 899-915.
- H. M. S. Hussein, Theoretical and experimental investigation of wickless heat pipes flat plate solar collector with cross flow heat exchanger, Energy Convection and Management, 48 (2007) 1266-1272.
- Abdul-Jabbar N. Khalifa, Thermal performance of locally made flat plate solar collectors used as part of a domestic hot water system. Energy Conversion and Management, 40 (1999) pp 1825-1833.
- Govind N. Kulkarni, Shireesh B. Kedare and Santanu Bandyopadhyay, Determination of design space and optimization of solar water heating systems. Solar Energy, 81 (2007) pp. 958-968.
- N. Akhtar, S. C. Mullick, Computation of glass-cover temperatures and top heat loss coefficient of flat-plate solar collectors with double glazing, Energy 32 (2007) 1067-1074.
- K. Elshazly, M. Moawed, E. Ibrahim, M. Emara, Heat transfer by free convection from the inside surface of the vertical and inclined elliptical tube, Energy Conversion and Management 46 (2005) 1443-1463.
- K.A.R.Ismail, M.M. Abogderah, Performance of a heat pipe solar collector journal of solar energy engineering 120 (1998) 51-59.
- Mehmet Akyurt (1984) Development of heat pipes for solar water heaters. Solar Energy vol.32, no.5, pp. 625-631.
- The Diyodar Meteorite Fall in India
Abstract Views :81 |
PDF Views:52
Authors
Y. Srivastava
1,
A. Kumar
1,
A. Basu Sarbadhikari
1,
D. Ray
1,
V. M. Nair
1,
A. Das
1,
A. D. Shukla
1,
S. Sathiyaseelan
1,
R. Ramachandran
1,
B. Sivaraman
1,
S. Vijayan
1,
N. Panwar
1,
A. J. Verma
1,
N. Srivastava
1,
A. Rani
1,
G. Arora
1,
R. R. Mahajan
1,
A. Bhardwaj
1
Affiliations
1 Physical Research Laboratory, Ahmedabad 380 009, India., IN
1 Physical Research Laboratory, Ahmedabad 380 009, India., IN
Source
Current Science, Vol 124, No 2 (2023), Pagination: 152-154Abstract
No Abstract.Full Text
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