List of Academic and Industrial Publications
of Dr. Ranjith Obeyesekera
M.Sc (Hons.), PhD, MASME, MIIIE, MASCE
 

 

1.

B.R.K. OBEYSEKERA
Determination of axial load on cone contacted area with the bottom hole.  Azerbaijan Petroleum Industry, 1984 No.9, P.25-28
 

2.

B.R.K. OBEYSEKERA
Determination of the main factors of Tri-cone bit interaction on hard formation destruction.  Azerbaijan Petroleum Industry. 1985, No.12, P.32-34
 

3.

B.R.K. OBEYSEKERA
Selection of optimum bit constructional parameters with due regard to Tri-cone bit interaction with hard formation.  Azerbaijan Petroleum Industry. 1985 No.2, P.33-35
 

4.

B.R.K. OBEYSEKERA
Mechanism of Drill bit interaction with rock.  Azerbaijan Petroleum Industry. 1985, No.4, P.26-27

 

5.

B.R.K. OBEYSEKERA

Professor R.A. Badalov, Academician, Academy of Sciences in AZS.S.R. BRK Obeyesekera Determination the effect of axial load on drill tooth wears for rock failure efficiency.  'SVESTIYA' Academy of Sciences in AZ.S.S.R. 1985
 

6.

B.R.K. OBEYSEKERA

Professor R.A. Badalov, Academician, Academy of Sciences in AZ.S.S.R.

BRK Obeyesekera Probabilistic method for calculating the shape of drill bit tooth with due regard to rock interaction. "ISVESTIYA' Academy of Sciences in AX.S.S.R. 1986

No.10
 

7.

B.R.K. OBEYESEKERA
Determination of the cone rotating speed with due regard to tooth contact time with the formations and the order of placing of the drill teeth on cone surface.  Oil and Gas. 1985. No.5, P.34-36

 

8

B.R.K. OBEYESEKERA
Determination of main kinematical parameters of tri- cone drill bits.  Azerbaijan Petroleum Industry. 1985. No.8, P.24-26

 

9.

B.R.K. OBEYESEKERA

Professor R.A. Badalov, Academician, Academy of Sciences in AZ.S.S.R.

brk obeyesekera

Determination of rock interaction efficiency with due regards to the cutting tools constructive parameters and tool wear.  'ISVESTIYA' Academy of Sciences in AZ.S.S.R. 1985

 

10.

B.R.K. OBEYESEKERA
Bit load distribution on contacted working surfaces with the bottom hole.  The 3rd Al Soviet Scientific Conference on Dynamic, Strength and Reliability of Oil Machines and Equipments. Baku. 1983, from 16th to 18th November P.42-43

 

11.

B.R.K. OBEYESEKERA 

Determination of optimum number of the cones in drill bit.  The 7th Republican Scientific Conference of Ph.D. followers in Azerbaijan.  Thesis Vol.2, Baku 1984,p.45
 

12.

B.R.K. OBEYESEKERA
Determination of the kinematical and dynamical parameters of Tri-cone bits.  The 2nd Scientific Technical Seminar for young Scientists and specialists. 31st May - 2nd June 1984 Baku

 

13.

B.R.K. OBEYESEKERA
Determination of bit penetration rate with due regard to geometry of the cone working surface and wear of the bits.  Oil and Gas, 1985, No.10p. 37-38.
 

14.

B.R.K. OBEYESEKERA - A Practice Book
Practice book
: Determination of optimal geometry of drill bit working surface and drilling parameters for the purpose of rock disintegration efficiency.  Publishers' NEC/SRC/Standard research centre.  Baku 1985,p.51

 

15.

B.R.K. OBEYESEKERA

Study of sea wave energy and under water Random Process.

ALTERNATIVE ENERGY SOURCES vii, Vol.1 Solar energy fundamentals and applications. Edited by T. Mejat Vezirogly Hemisphere Pub. Corp. New York, Washington, Philadelphia, London 1987 P.1065 - 1074

 

16.

B.R.K. OBEYESEKERA
A new approach to the problems of sea erosion 43rd annual session Sri Lanka Association for the Advancement of Science (SLAAS) in Colombo 1987, Part I P.103

 

17.

B.R.K. OBEYESEKERA
Analytical; studies of coastal erosion and solution by means of mathematical simulation.  Computer modelling in ocean engineering VENICE/19-23 September 1988 publishers. A.A.BALKEMA/ROTTERDAM/BROOKFIELD 1988,p.349 - 353

 

18.

B.R.K. OBEYESEKERA
Strategies  for the promotion of utilisation of renewable energy systems.  ENERGY 90. International Conference & Exhibition on Energy supply and utilisation. Jan.23-26 1990; Philippine International Convention Centre.

 

19.

 B.R.K. OBEYESEKERA - A book
World in models, Popular Science book in Sinhalese Language 104p published 1990.

 

20.

B.R.K. OBEYESEKERA
A study of Human Skeletal muscle behaviours caused by rhythms and its possible computer simulation.  VIII International Conference of Finite Elements in fluids.  BarcelonaSpain 1993
 

21.

B.R.K. OBEYESEKERA;S.D. PATHIRANA; K. LIYANAGE, A. RATNAYAKE

Renewable Energy and Related activities at Faculty of Engineering, University of Peradeniya, Sri-Lanka.  Work Shop New Delhi, April 3 - 7th 1995
 

22..

B.R.K. OBEYESEKERA

Design improvement of a Hammer Mill.  International Conference on Maintenance of Engineering facilities in Developing Countries. 

Oct.9 - 13th - 1995. Proceedings. MEF95 Conference, Botswana 1995

 

23.

B.R.K. OBEYESEKERA; S.D.G.S.P. GUNAWARDENA

Wave Energy Harnessing Device - The Oscillating Water Column with the Projecting Side Walls.

Annual Research Sessions, Faculty of Engineering, University of Peradeniya, 18th November 1995, Proceedings

 

24

B.R.K. OBEYESEKERA; S.D.G.S.P. GUNAWARDENA

Design of a Wave Energy harnessing Device with Maximum Efficiency

Sri Lanka Association for the Advancement of Science SLAAS, 51st Annual Session, November 1995

Part I, Proceedings, Open University of Sri - Lanka, 1995

 

25

BR.K. OBEYESEKERA

Wave Energy; International Conference on Renewable Energy Curriculum.

Proceedings 29th April - 3rd May 1996. New Delhi, India

 

26

B.R.K. OBEYESEKERA; S.D.G.S.P. GUNAWARDENA
"Wave Energy harnessing Aspects in Sri Lanka" World Renewable Energy Congress, Denver, Colorado, USA, June 1996 pp.15-21

 

27

B.R.K. OBEYESEKERA; S.D.G.S.P. GUNAWARDENA

"Wave Energy harnessing device - The Oscillating water column with projecting side walls"

Poster Sessions, University Annual Research Sessions 1996, University of Peradeniya. Sri-Lanka, Proceedings 10th August 1996 p.143

 

28

B.R.K. OBEYESEKERA- Patent

Working surface of the Hammer Mill Instrument.  Patent No.10941 International Patent Classification B 02 C7/00. Patent issued 15.10.1996

Working surface of the Hammer Mill Instrument.  Patent No.10941 International Patent Classification B 02 C7/00. Patent issued 15.10.1996

 

29

B.R.K. OBEYESEKERA Patent

Flexible bottom area in the working surface of oscillating water column.  Patent No.11251.

International Patent classification E 02 B. Patent issued 16.10.1997
 

30

B.R.K.. OBEYESEKERA; R.J.S.K. RANATUNGA.
Country paper on Energy. Education and Simulation in the field of Renewable Energy in South and South - East Asia Terri, ArlingtonUSA 1997

 

 31

B.R.K. OBEYESEKERA
Aero Engines: The Sinhala Encyclopaedia Vol.9 1998

 

32.

B.R.K. OBEYESEKERA

Aeronautical Engineering: The Sinhala Encyclopaedia Vol. 9. 1998

 

33.

B.R.K. OBEYESEKERA
Air Crafts: The Sinhala Encyclopaedia Vol. 9 1998

 

34.

B.R.K. OBEYESEKERA
Air-Ships: The Sinhala Encyclopaedia Vol.9 1998 - Sri-Lanka

 

35.

B.R.K. OBEYESEKERA
Air - Thrust: The Sinhala Encyclopaedia Vol.9 1998 Sri - Lanka

 

36.

B.R.K. OBEYESEKERA
Air - Services: The Sinhala Encyclopaedia Vol.9 1998 Sri - Lanka

 

37.

B.R.K. OBEYESEKERA
Aerial attach: The Sinhala Encyclopaedia Vol.9 1998 Sri - Lanka

 

38.

B.R.K. OBEYESEKERA
Practical book - Monograph on Wave Energy. Experiments and Introduction to Wave Energy Devices. 1997

 

39.

B.R.K. OBEYESEKERA - A book
Energy. Introduction to drilling for Oil and Gas & Wave Energy.  Technical Science book in English   published in 1998 January.

 

40.

B.R.K. OBEYESEKERA
Wind and Wave Energy.  Workshop on Renewable Energy Sources. 10 - 11 February 1998.  Colombo, Sri Lanka, (Paper and one hour Lecture)

 

41

B.R.K. OBEYESEKERA; S.D.G.S.P. GUNAWARDENA

Experimental Study of a macro model of the Wave Energy Harnessing Device to yield the rating power of 50kW from the sea - waves.  Multi - disciplinary International Conference on the occasion of 50th anniversary of Independence of Sri - Lanka, Feb.23 - 25 1998, University of Peradeniya, Sri - Lanka.

 42

 B.R.K. OBEYESEKERA; A. ELANKATHIR

An experimental study in designing the solar ventilator for crop drying. World Renewable Energy Congress-V 1998. 20th-25th Sept. 1998. Proceedings. Florence, Italy

 

43

B.R.K.OBEYESEKERA  Patent

Hubless turbine with multiple blades of different chord widths. Patent no: 11395

Patent issued 25.06.1998
 

44

 B.R.K. OBEYESEKERA; C.T.JAYASUNDARA

An experimental study of uni directional turbine to maximise the power out put of oscillating water column. Proceedings, 54th Annual sessions of SLAAS; 14th-19th Dec. 1998.
 

45

B.R.K. OBEYESEKERA; C.T.JAYASUNDARA

An experimental design of uni-directional turbine for generating power from the sea waves. Proceedings, University of Peradeniya, Annual Research sessions 7th Nov. 1998.
 

46

B.R.K. OBEYESEKERA; A.ELANKATHIR

A design of solar energy crop dryer. Proceedings, University of Peradeniya, Annual research sessions 7th Nov. 1998.
 

47

B.R.K. OBEYESEKERA; S.D.G.S.P. GUNAWARDENA

Experimental study of a macro model of the wave energy-harnessing device to yield the rating power of 50 kW from the sea waves. Proceedings, Multi- disciplinary International conference on the occasion of 50th anniversary of Independence of Sri Lanka. 23rd – 25th Feb. 1998.
 

48

B.R.K. OBEYESEKERA

Wind energy and Wave energy. Invited   lecture (one hour), Proceedings, 10th-11th Feb.1998.SLAAS, Colombo, Sri Lanka.
 

49

B.R.K. OBEYESEKERA; C.T.JAYASUNDARA

An experimental study on identification of characteristics of unidirectional turbine to run with maximum power out put., Proceedings, World Renewable Energy Congress 10th – 14th Feb.1999.,Perth , Western Australia, Murdoch University
 

50

B.R.K. OBEYESEKERA, book

Introduction to Oil & Gas drilling and wave energy as renewable energy. , 1999, pp.71.
 

51

B.R.K.OBEYESEKERA; C.T.JAYASUNDARA

Identification of parameters of energy harnessing device and wave climate on turbine performance. , IESL journal1999.publication -pending
 

52

B.R.K. OBEYESEKERA - Patent.
Solar energy ventilator chamber dryer with solar booster. Patent No: 11701. International patent classification No. F 24J-2/00, 3/06. 1999.
 

53

B.R.K. OBEYESEKERA.
A design of unmanned environmental friendly solar ventilator crop dryer. International Conference Solar-99. 1st-4th December 1999. DeakinUniversity, Geelong, Victoria, Australia.
 

54

B.R.K.OBEYESEKERA.
Wave energy technology in Sri Lanka. 2nd International Seminar on renewable energy for poverty alleviation. 26th-27th November 1999. Dhaka, Bangladesh
 

55

B.R.K.OBEYESEKERA. 
A design of low cost working model of wind turbine for battery charging purpose.  University annual research sessions-1999. Proceedings, 20th November 1999, Faculty of Medicine, University of Peradeniya, Sri Lanka.
 

56

B.R.K.OBEYESEKERA.
An experimental investigation to identify individual & compound factors of wave harnessing system related to chamber power. University annual research sessions –1999. Proceedings 20th November 1999, Faculty of Medicine, University of Peradeniya. Sri Lanka.
 

57

B.R.K.OBEYESEKERA. (1).
Wave energy studies in Sri Lanka, (2) Wave climate in Sri Lanka, (3) Energy utilisation in Sri Lanka, (4) Culture, University education, (5) Wave energy experiments at the faculty of engineering. 3rd October to 15th October 1999, Muroran Institute of Technology, Hokkaido, Japan. 1999.
 

58

B.R.K.OBEYESEKERA

World Wave energy scenario, 5th Workshop on

Low cost Electronic materials, solar cells and Renewable energy sources.

22-23 February 2000.
 

59

B.R.K.OBEYESEKERA Patent

Multiple Duct- Energy Generator, Patent No: 12092, issued on 24th May 2000.

Inter national classification number: H02K-57/00; H02N-11/00.
 

60

B.R.K.OBEYESEKERA. 
Joint research on developing demonstrational

Research pilot power plant of the “Pendulor” for coastal area in Sri Lanka.

Collaborative research program between Muroran Institute of technology,

Japan and University of Peradeniya, Sri Lanka. Commencement of the

Program: 1999 /2000.
 

61

B.R.K.OBEYESEKERA, R.M.N.C.B. Ranaweera, K. Muruganathan
“ New Design of a wind battery charging wind mill capacity of which is 200w.” 94th

Annual sessions-2000, The Institute of Engineers, Colombo 7. , Sri Lanka,   

20th October 2000.
 

62

B.R.K.OBEYESEKERA, A. Amaratunge
“A new design of Tea plucker”, 57th Annual sessions, Sri Lanka Association for the Advancement of Science, Faculty of Science, University of Peradeniya, 28th Nov. – 29th Nov. 2000.  Kandy, Sri Lanka.Vol.1 No.3 (November, 2000).
 

63

B.R.K.OBEYESEKERA, D.P.S.S.Devapriya , N.A.N.Dias,

A.K.R.Dissanayake, et all,” Design of a shoe for walking on Water”, 57th annual sessions 2000, SLAAS, Faculty of Science, University of Peradeniya, Sri Lanka, 28thNov. -29th Nov.2000.Vol.1 No.3 (November 2000).
 

64

B.R.K.OBEYESEKERA, M.G.S.S.K. Gunasekera, H.M.D.c. Herath, U.S. Dissanayake,et all.,
“A design of wall Crawler”,57th annual sessions 2000. SLAAS, Faculty of Science, University of Peradeniya, Sri Lanka., 28th Nov-30th Nov.2000.,Vol.1 No.3 ( November 2000).
 

65

B.R.K.OBEYESEKERA, K.A.K.L. Karunaratne, D. Karunaratne, I.P Liyanagama Et all. ,
” A new design of a Rubber Tapping machine”, 57th Annual sessions

2000. SLAAS, Faculty of Science, University of Peradeinya, Sri Lanka. 28th

Nov.- 30th Nov.2000, Vol.1 No.3. (November 2000).
 

66

T.Watabe, H.Yokouchi, S.D.G.S.P.Gunawardena, B.R.K.OBEYESEKERA, U.I.Dis Sanayake,
“Preliminary study on Wave energy utilization of Sri Lanka”,

The11th International offshore and Polar Eng. Conference (ISOPE) 

Stavenger, Norway, June 17-22, 2001.
 

67

B.R.K.OBEYESEKERA,
“World wave energy scenario & wave energy research Activities in Sri Lanka”, Seminar at the Department of Naval Architecture & Marine Engineering, College of Engineering, North Campus, University of  Michigan, Ann Arbour, 8th Feb. 2001. U.S.A
 

68

B.R.K.OBEYESEKERA,

“Identification of geometrical parameters of unidirectional turbine to increase it’s power out put with help of statistical experiments” Seminar at the Department of Naval Architecture & Marine Engineering, College of Engineering, North Campus, University of Michigan, Ann Arbor, 22nd. Feb.2001. U.S.A
 

69

B.R.K.OBEYESEKERA, T.Watabe,H.Yokouchi et al.
”Preliminary study on wave energy utilization in Sri Lanka” Proceedings of the 11th International offshore and polar engineering conference, Savanger , Norway , June 17-22, 2001.ISBN I-880653-52-4 (vol. I); I-ISSN 1098-6189(set).
 

70

B.R.K.OBEYEYESEKERA-(Project supervisor),
“Statistical Analysis of Wave Energy Conversion Using Experimental model of a Wave energy Harnessing Device” Technical report,NA522-Experimental marine Engineering, spring 2001,Dept.of Naval Architecture & marine Engineering, Ann Arbor, University of Michigan.June2001( with CD-ROM).
 

71

B.R.K.OBEYESEKERA,
“A New Design of a Wave Harnessing Device to Generate Electricity from the Sea waves”, World Renewable Energy Congress-VII COLOGNE, Germany, 29 June –5 July 2002.(accepted for presentation)

 

77

B.R.K.OBEYESEKERA,
“Mono piled wave energy harnessing device with floats” New concept-a Report of overall conceptual design & wave data analysis submitted to Ocean Motion International comp. California. March 2002.
 

78

B.R.K. OBEYESEKERA, Michael M. BERNITSAS
“Experimental investigation of fixing single flexible bottom edge flap on the front wall of Oscillating Water Column on the chamber efficiency”, “Ocean Engineering” - International Journal, U.S.A. 2003 Sept.
 

79

B.R.K. OBEYESEKERA,
“FEA models to identify possible fatigue failures on a large diameter turbine, installed on a floating platform”, Proceedings of OMAE 2004, 23rd International conference on offshore Mechanics and Arctic Engineering, June 20-25, 2004,Vancouver, British Columbia, Canada
 

80

B.R.K. OBEYESEKERA, 
“Introduction to wave energy Technology in the world and cost worthy Energetech wave energy harnessing system”, Seminar at the Dept. of Mechanical Engineering, Texas Tech. University, Lubbock, Texas, 2nd July 2004. U.S.A.
 

81

B.R.K.OBEYESEKERA,
“FEA study in wobbling effect on a large diameter turbine- Energetech 1st Generation wave energy turbine hub”, The 3rd International Symposium on stability control of rotating Machinery” ISCORMA, 19-23 September 2005, Cleveland, Ohio, U.S.A.
 

82

B.R.K.OBEYESEKERA,

“Technical review of the turbo generator unit of Port Kembla”, Technical review -2, Energetech Australia Pty, Ltd., Randwick, 15th March 2005.
 

83

B.R.K.OBEYESEKERA,
“A cost effective, high efficient ocean wave energy conversion system”, INCEED 2005, International conference on Energy, Environment and Disasters, July 24-30, 2005, Charlotte, North Carolina, U.S.A.
 

84

Patent: “A blade pitch control mechanism”, 2005. T. Dennis, B.R.K. Obeyesekera, T. Finnigan, et all. (US Patent); EU Patent PCT/AU2006000996
 

85

B.R.K.OBEYESEKERA,
A study of turbine performance using characteristics of the Oscillation of water column with help of design experiments., ESDA 2006-95640, 8th Biennial ASME conference of engineering systems design and Analysis. July 2006. Turin, Italy 2006.
 

86

B.R.K.OBEYESEKERA,
‘Cost effective high efficiency ocean wave energy conversion system’. Energy Engineering, ASCE journal (submitted for publishing) 2007

 

87

 

B.R.K.OBEYESEKERA, K.Obeyesekera,
“Health based sustainable energy engineering application to indoor air quality”, NSTI-Nanotechnology/Clean technology conference, Boston, U.S.A. June 1-5 2008.

88

B.R.K.OBEYESEKERA,K.OBEYESEKERA

Universal Dust mite eliminator-KHI Products for Asthma & indoor allergies: DME-100-U”, Technical report 7, 2008, K-HART International Pty.Ltd. Bella Vista, NSW 2153, Australia.

89

B.R.K.OBEYESEKERA,K.OBEYESEKERA

“Dust mite eliminator-Travel mate:KHI Products for Asthma & indoor allergies: DME-100TM” Technical report 6 2008, K-HART International Pty.Ltd., Bella Vista, NSW, Australia.

90

B.R.K.OBEYESEKERA,K.OBEYESEKERA

“Dust mite eliminator-Room mate:KHI Products for Asthma & indoor allergies: DME-100RM” Technical report 2008, K-HART International Pty.Ltd., Bella Vista, NSW, Australia.

91

Patent: “Dust mite eliminator”, 2008B.R.K.OBEYESEKERA,K.OBEYESEKERA

Patent pending.

92

Patent:An Apparatus for collecting Solar Radiation WO/2014/205488,PCT/AU2014/000659 patent pending B.R.K.OBEYESEKERA,T.G.OBEYESEKERA

 

   
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Dr. Ranjith Obeyesekera's inventions