Journal Papers:

1. Gursher Aujla, Chennu Ranganayakulu, Establishment of Colburn ‘j’ Factor and Fanning Friction Factor ‘f’ Correlations for a Compact Heat Exchanger having Wavy fins with Perforations using CFD, International Journal of Heat and Fluid Flow, https://doi.org/10.1016/j.ijheatfluidflow.2024.109484, 2024.
2. Vinay Pratap Singh Negi, Chennu Ranganayakulu, Thermal performance of three-wheel and split-wheel air cycle systems for a civil aircraft environmental control system (ECS), International Journal of Refrigeration, Reference: JIJR 6227, 2024, DOI: https: //doi.org/10.1016/j.ijrefrig.2024.06.021.
3. Vishwas Kumar Pandey, Vinay Pratap Singh Negi, Chennu Ranganayakulu, An In-Depth Comparison of Straight and Wavy Microchannel Heat Exchangers, J. Thermal Sci. Eng. Applications, May 2024, 16(5):051007, Paper No: TSEA-231457  https://doi.org/10.1115/1.4064985.
4. Ankur Mishra, Chennu Ranganayakulu, Numerical analysis of generation of Colburn j and friction f factor for the Pin fins of a compact heat exchanger using CFD approach, DOI 10.1007/s12046-024-02447-6, SHADANA, March 2024.
5. Vishwas Kumar Pandey, Vinay Pratap Singh Negi, Chennu Ranganayakulu, Comparative Study of Straight and Venturi Channel Cross-Sections of Microchannel Heat Exchanger in Terms of Effectiveness and Pressure Drop, J. Thermal Science Engineering Applications, Accepted on 18-5-20204, Paper No: TSEA-24-1099, https://doi.org/10.1115/1.4065636,
6. Partha Pratim Kemprai, K V Ramana Murthy, Chennu Ranganayakulu, P Muthu kumar, Experimental Investigation on Condensation Heat Transfer Coefficient and Frictional Pressure Drop of Low GWP Refrigerant R1234yf on a Wavy Fin Surface, J of Thermal Science and Engineering Progress, Volume 47, January 2024, 102300.
7. Pratyush Padmanabhan, Sanatkumar Samvit, Chennu Ranganayakulu, Aerodynamic and Thermal Optimization of Plate Heat Exchanger Fin Arrangements, DOI: 10.1007/978-981-99-5752-1_36, In book: Fluid Mechanics and Fluid Power, Volume 2, 2024.
8. Negi Vinay Pratap Singh; Ranganayakulu Chennu, Optimization of Rifled Tube by Parametric Changes using CFD for Goodness Factor Enhancement, Heat Transfer Journal, 2023, Wiley Publications, Wily online, DOI: 10.1002/htj.22970.
9. Naveen Kumar S, Chennu Ranganayakulu, Neural Network Analogy over Numerical Analysis on Thermo-Hydraulic performance factors j & f correlations development for Compact Heat Exchangers, International Journal of Energy for a Clean Environment, 25(4):67-88(2024).
10. Vinay Pratap Singh Negi, Chennu Ranganayakulu, Analysis of Energy saving between Bleed Air and Bleed less Environmental Control Systems in a typical Aircraft, Published IEEE Xplore, 3-1-2023, DOI:10.1109/ICUE55325.2022.10113546, Scopus Index Journal.
11. Raghu Vamsi, P., Hemanth, S.M.K., Ranganayakulu, C. (2023). Numerical Analysis of Generation of Colburn-j Factor for the Plain Rectangular Fins of a Compact Heat Exchanger Using CFD Approach. In: Bhattacharyya, S., Verma, S., Harikrishnan, A.R. (eds) Fluid Mechanics and Fluid Power (Vol. 3). FMFP 2021. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-6270-7_57
12. Amaranatha Raju, T.P. Ashok Babu, C. Ranganayakulu, Investigation of flow boiling heat transfer and pressure drop of R134a in a rectangular channel with wavy fin, International Journal of Thermal Sciences, 147 (2020) 106055, IP 3.5.
13. C Ranganayakulu, Veeredhi Vasudeva Rao, Measurement of heat transfer coefficient and pressure drops in a compact heat exchanger with lance and offset fins for water based Al2O3 nano-fluids, Heat and Mass Transfer, 1-11, 10.1007/s00231-019-02707-w, 2019.
14. Ranganayakulu, Numerical Analysis of Compact Plate-fin Heat Exchangers for Aerospace Applications” International Journal of Numerical Methods for Heat and Fluid Flow, Vol 28, Issue 2, pp. 395-412, 2018. https://doi.org/10.1108/HFF-08-2016-0313, IP 2.45
15. Ranganayakulu, Xing Luo, Stephan Kabelac, The Single-blow transient Testing technique for Offset and Wavy Fins of Compact Plate-fin heat excahngers, Journal of Applied thermal Engineeing,, No. 111, pp 1588-1595, 2017. https://doi.org/10.1016/j.applthermaleng.2016.05.118, 3.444
16. Amaranatha Raju Muppala, M.E; Ashok Babu T P; Chennu Ranganayakulu, “Boiling heat transfer and pressure drop analysis of R134a in a brazed heat exchanger with offset strip fins" Heat Mass Transfer, Vol. 53, No. 10, pp: 3167-3180, Springer, DOI 10.1007/s00231-017-2060-1, IP 1.494
17. Amaranatha Raju Muppala, M.E; Ashok Babu T P, Ranganayakulu, Heat Transfer and Friction correlations for R134a with Offset strip fin surface, Int. Journal of Aeronautical Society of India, Vol. 69, No. 4, pp: 615-627, November 2017.
18. Ranganayakulu,“Steady state and transient analysis of Compact plate fin heat exchanger fins for generation of design data using CFD”, International J of Numerical Methods for Heat & Fluid Flow, vol. 26, Iss:2, pp:440-460, 2016. DOI: 10.1016/j.ijheatmasstransfer.2009.03.026  
19. V.Ramana Murthy, Mahesh Bondhu, C. Ranganayakulu. T.P. Ashok Babu, Condensation Heat Transfer and Pressure drop of R134a saturated vapor inside a brazed plate fin heat exchanger with serrated fin, 53(1), Paper DOI 10.1007/s00231-016-1827-0, Online in J of Heat and Mass Transfer, 2016.
20. K V Ramana Murthy, Ranganayakulu, T P Ashok Babu, “Influence of hydraulic diameter on heat transfer and pressure drop during condensation of R134a refrigerant in a brazed plate fin heat exchangers” Int. J Engineering and Innovative Technology(IJEIT), Vol. 5, Issue 7, ID: IJEIT201512-4802, 2016. Pp:21-31, ID: IJET 201512-4802, 2016, IP 0.799
21. Amaranatha Raju. Muppala, Ashok Babu T.P, Ranganayakulu Chennu, All Electric Cooling system for unmanned aircrafts, Journal of Aeronautical Society of India, Vol. 67, No. 4, pp:488-499,2015 .
22. Bala Sundar Rao, G. Ranganath and C. Ranganayakulu, Development of Colburn ‘j’ factor and fanning friction factor correlations for compact surfaces of the triangular perforated fins using CFD,  Heat Transfer Engineering  volume 37(2):00-00 DOI: 10.1080/01457632.2015.1044395, 2015.
23. K V Ramana Murthy, Ranganayakulu, T P Ashok Babu, Thermodynamic Analysis Of Vapor Compression Refrigeration System For Aircraft With Refrigerant R134a, Int. Journal of Aerospace Sciences and Technologies” Aeronautical Society of India, Vol. 68, No. 1, Feb. 2016. ISSN:0972.950x
24. K V Ramana Murthy, Ranganayakulu, T P Ashok Babu Development of Heat Transfer Coefficient and Friction Factor Correlations for Serrated Fins in Water Medium using CFD,International Journal of Physical Science and Application, 5(3), 238-248, 2015. doi:10.17265/2159-5348/2015/03.006.
25. Amaranatha Raju. Muppala, Ashok Babu T.P, Ranganayakulu Chennu, Development of single phase heat transfer correlations for water and R134a in rectangular channel with smooth wavy fin, International Journal of Physical Science and Application,   5(3), 199-208, 2015. doi:10.17265/2159-5348/2015/03.006., IP 0.773
26. BalaSundar Rao, G. Ranganath&C. Ranganayakulu, “ Colburn ‘j’ factor and fanning friction factor ‘f’ correlations of Triangular Plain fins surface of a compact heat exchanger using  CFD"Applied Mechanics and Materials, Vol 787, pp 207-211, doi:10.4028/www.scientific.net/AMM.787.207, Switzerland, 2015.
27. BalaSundar Rao, G. Ranganath&C. Ranganayakulu," Heat Transfer and pressure drop correlations of Rectangular perforated fin surface of a Compact Heat Exchanger" international j of Advanced Manufacturing Technology’ Annexure II, 7941, ISSN:0286-3768, Springer Verlag, Germany, 2015., IP 2.601
28. Ranganaykulu, S Kabelac, Boiling of   R134a   in  a   Compact Plate-fin  Heat Exchanger having Offset strip fins, ASME- Journal of Heat Transfer, Vol. 137, N0. 12, 2015, No. HT-14-1235. No. HT 14-1235, IP 1.602
29. BalaSundar Rao, G. Ranganath&C. Ranganayakulu, Development of Colburn ‘j’ factor and fanning friction factor ‘f’ correlations for compact heat exchangers plain fins by using CFD, International Journal of Heat and Mass Transfer, Volume 49(7), pp 991-1000, 2013.   https://doi.org/10.1080/01457632.2015.1044395
30. C. Bhaskar, M. Palanikumar, C. Ranganayakulu& S.  Paul Vizhian, Endurance Life Estimation of Aircraft Compact Heat Exchanger,  Int. Journal of Aerospace Science and Technologies, Volume 64, No. 4, Nov. 2012, pp 248-258
31. Pallavi P., Ranganayakulu C.,  Development  of  Heat  Transfer  coefficient  and  Friction  factor correlations for Offset fins using CFD,   Journal of  Numerical  Methods  for  Heat and  Fluid Flow, Volume 21, No. 8, pp 935-951, 2011.  https://doi.org/10.1108/09615531111177732.
32. Sheik Ismail, R. Velraj and C. Ranganayakulu, Studies on pumping power in terms of pressure drop and heat transfer characteristics of compact plate-fin heat exchangers – A review International J of Renewable and Sustainable Energy Reviews, 14, 478-485, 2010. DOI: 10.1016/j.rser.2009.06.033 , IP 6.55
33. Sheik Ismail, C. Ranganayakulu and Ramesh K. Shah, Numerical study of flow patterns of compact plate-fin heat exchangers  and  generation  of design   data  for  offset  and  wavy  fins, International J of Heat and Mass Transfer, 52, 3972-3983, 2009. 10.1016/j.ijheatmasstransfer.2009.03.026
34. Ranganayakulu C., Gerhard Herres, Heat Transfer from Horizontal Tubes in Pool Boiling: Influence of 3-Dimensional Heat Conduction in the Wall of the Evaporator Tube-A Finite Element Analysis, Heat and Mass Transfer Journal, Springer-Verlag, 42, 271-278, 2006.
35. Dieter Gorenflo, Elisabeth Danger, Andrea Luke, Stephan Kotthoff, Untung Chandra, Ranganayakulu C., Bubble Formation with Pool Boiling on Tubes with or without Basic Surface Modifications for Enhancement, International Journal of Heat and Fluid Flow, 25, 288-297, 2004. 1016/j.ijheatfluidflow.2003.11.018
36. Ranganayakulu C., Seetharamu K.N., The Combined Effects of Wall Longitudinal Heat Conduction and Inlet Flow Non-uniformity on Thermal Performance of Cross Flow Plate-Fin Heat Exchanger, International Journal of Heat and Mass Transfer, 36, 247-256, 2000. 1007/s002310050392, IP: 3.891
37. Ranganayakulu C., Seetharamu K.N., The Combined Effects of Wall Longitudinal Heat Conduction, Inlet Flow Non-uniformity and Temperature Non-uniformity on Thermal Performance of Cross Flow Plate-Fin Heat Exchanger, International Communications in Heat and Mass Transfer, 26, 669-678, 1999. https://doi.org/10.1016/S0735-1933(99)00053-6, IP 4.113
38. Ranganayakulu C., Seetharamu K.N., Sreevatsan K. V., The Combined Effects of Wall Longitudinal Heat Conduction, Inlet Flow Non-uniformity and Temperature Non-uniformity on Thermal Performance of Cross Flow Tube-Fin Heat Exchanger, International Journal of Heat and Mass Transfer, 42, 263-273, 1999. 1016/S0017-9310(98)00156-2
39. Ranganayakulu C., Seetharamu K.N., Sreevatsan K. V., The Effects of Longitudinal Heat Conduction in Compact Plate-Fin and Tube-Fin Heat Exchangers using a Finite Element Model, International Journal of Heat and Mass Transfer, 40, 1261-1277, 1997.  1016/S0017-9310(96)00182-2
40. Ranganayakulu C., Seetharamu K.N., Sreevatsan K. V., The Effects of Inlet Fluid Flow Non-uniformity on Thermal Performance and Pressure Drops in Cross-Flow Plate-Fin Compact Heat Exchangers, International Journal of Heat and Mass Transfer, 40, 27-38, 1997. 1016/S0017-9310(96)00087-7
41. Ranganayakulu C., Seetharamu K.N., The Combined Effects of Inlet Flow Non-uniformity and Temperature Non-uniformity on Thermal Performance of Cross Flow Plate-Fin Heat Exchanger, International Journal of Warme und Stoffubertragung, 32, 375-383, 1997.

Under Review

42. Vinay Pratap Singh Negi, Chennu Ranganayakulu, Analysis of Energy-Saving Environmental Control Systems in a Typical Aircraft, International Journal of Energy for a Clean Environment, Under review, IJECE, 2024.
43. Partha Pratim Kemprai, KV Ramana Murthy, Chennu Ranganayakulu, P Muthu kumar, Condensation Heat Transfer and Pressure Drop of low GWP Refrigerant R1234yf inside a Brazed Plate Fin Compact Heat Exchanger with Serrated Fins, under review, IJHMT, 2024.
44. Vishwas Kumar Pandey, Vinay Pratap Singh Negi, Chennu Ranganayakulu, Numerical Validation of Straight Microchannel Heat Exchanger and its Performance Comparison with Venturi Channel, Thermal Science & Engineering Progress, under review, 2024.
45. Vishwas Kumar Pandey, Vinay Pratap Singh Negi, Chennu Ranganayakulu, Numerical Validation of Straight Microchannel Heat Exchanger and its Performance Comparison with Wavy Channel, J of Thermal Science and Engineering Progress, Under review, 2024.
46. Vishwjeet Choudhary, Aneesh A M, Chennu Ranganayakulu, Numerical Investigation of Thermo-hydraulic performance of Mini-channel Heat Exchanger for moderate pressure gas-gas heat transfer applications, communicated to J of Thermal Science and Engineering Applications, 2024.
47. Chennu Ranganayakulu, Fuchs Marcos, Stephan Kabelac, Experimental Measurements of Fanning Friction Factors in various types of Additively Manufactured Compact Heat Exchangers, communicated to Experimental Heat Transfer, 2023.
48. Bhavani Sankar G, Ranganayakulu Chennu, Configuration Studies of Aircraft Environmental System using Exergy Analysis of Compact Heat Exchangers for Multi-Disciplinary Optimization, Submitted to J of Thermal Analysis and Calorimetry, No. JTAC-D-22-00319, 16-2-2023.

Conference Papers:

49. Vinay Pratap Singh Negi, Ashrit Shekhar Tayade, Chennu Ranganayakulu, Analysis of Energy saving between Bleed Air and Bleedless Environmental Control Systems in a typical Aircraft, Presented in ICUE 2022 on Energy, Environment, and Climate Change, Pattaya City, Thailand, 26 – 28 October 2022.
50. Vinay Pratap Singh Negi, Ranganayakulu Chennu, Design of an Energy-efficient Electrically-driven Environmental Control System in a Civil Aircraft, January 2024, DOI: 10.1615/IHMTC-2023.1580, Conference: Proceedings of the 27th National and 5th International ISHMT-ASTFE Heat and Mass Transfer Conference December 14-17, 2023, IIT Patna, Patna-801106, Bihar, India.
51. Amit Hedge Sanjay, Chennu Ranganayakulu, CFD Analysis of a Pre-cooler for Hypersonic Propulsion, submitted to 16th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT), Amsterdam, Netherlands, ID No. 157, ATE-HEFAT2022.
52. Ranganayakulu C, Bhavani Sankar G, Configuration Studies of Aircraft Environmental Control System using Exergy Analysis of Compact Heat Exchangers for Multi-Disciplinary Optimization, FMFP 2021, BITS Pilani 2021.
53. Raghu Vamsi, S.M.K Hemanth, Chennu Ranganayakulu, Numerical analysis of generation of Colburn-j factor for the plain rectangular fins of a compact heat exchanger using CFD approach, 48th National Conference on Fluid Mechanics and Fluid Power, FMFP2021-03-273, BITS, Pilani.
54. BhavaniSankar G, Ranganayakulu Chennu, Multi-Objective Optimization of the Vapour Cycle System of an Aircraft Environmental Control System using Exergy Analysis, 26th National and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference, December 17-20, 2021, IIT Madras, Chennai-600036.
55. Pratyush Padmanabhan, Sanatkumar S Rajagopalan, Chennu Ranganayakulu, Aerodynamic and Thermal Optimization of Plate Heat Exchanger Fin Arrangements, 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP), December 14-16, 2022, IIT Roorkee, Uttarakhand.
56. Ankur Mishra, Chennu Ranganayakulu, Numerical analysis of generation of Colburn-j factor for the Pin fins of a compact heat exchanger using CFD approach, 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP) to be held, December 14-16, 2022, IIT Roorkee, Uttarakhand.
57. Pankaj Kumar, Chennu Ranganayakulu, Numerical analysis of generation of Colburn-j factor for the plain triangular fins of a compact heat exchanger using CFD approach, 9th International and 49th National Conference on Fluid Mechanics and Fluid Power (FMFP) December 14-16, 2022, IIT Roorkee, Uttarakhand, India.
58. Pankaj Kumar, Chennu Ranganayakulu, Establishment of Colburn j factor and Fanning friction f factor correlations for a Compact Heat Exchanger having triangular plain fins using CFD approach, Presented at 17th International Heat Transfer Conference (IHTC17), No. 132, 14 -18 August 2023, Cape Town, South Africa.
59. Negi Vinay Pratap Singh, Ranganayakulu Chennu, High pressure water separation system coupled with Aircraft fuel in Environmental Control System for a typical aircraft application, 9^th conference on PLMSS, 6-8 Dec. 2023.
60. Negi Vinay Pratap Singh, Ranganayakulu Chennu, Design of an energy efficient electrically driven Environmental Control System in a Civil aircraft, 27^th National & 5^th conference on ISHMT-ASTEFE Heat & Mass Transfer Conference, 14-17 Dec. 2023.
61. Rangagayakulu, Complete life cycle of design and development of Compact Plate-Fin Heat Exchangers for Aerospace Applications, 3rd International work shop on Compact Heat Exchangers, 2-3 Jan. 2020, Dayananda Sagar University, Bangalore.
62. Rangagayakulu, Compact Plate-Fin Heat Exchangers as Phase Change and Nano-Fluid Heat Transfer Applications in Aerospace Industry. XXV National Heat and Mass Transfer & 3rd ISHMT-ATE Heat and Mass Transfer Conference, 28-31 December 2019, IIT, Roorkee.
63. Bhavani Sankar G, Ranganayakulu C, Exergy Analysis application for the configuration optimization of an aircraft ECS, XXV National Heat and Mass Transfer & 3rd ISHMT-ATE Heat and Mass Transfer Conference, 28-31 December, IIT, Roorkee, India, IHMTC2019-POS-386.
64. Partha Pratim Kemprai, Chennu Ranganayakulu and P Muthukumar Numerical and Experimental Investigation in Compact Heat Exchanger Surfaces with wavy fins, XXV National Heat and Mass Transfer & 3rd ISHMT-ATE Heat and Mass Transfer Conference, 28-31 December, IIT, Roorkee, India, IHMTC2019-PRE-111.
65. BalaSundar Rao, G. Ranganath&C. Ranganayakulu, “ Colburn ‘j’ factor and fanning friction factor ‘f’ correlations of Triangular Plain fins surface of a compact heat exchanger"Presented in  Thermacomp2018, held at IISc, Bangalore, 9-11 July 2018.
66. Ramana Murthy, Ashok Babu T P,C Ranganayakulu and Xing Luo, Experimental investigation on heat transfer coefficients and frictional pressure drop during R134a condensation inside a plate-fin heat exchanger with wavy fin, Presented in 16^th Heat and Mass Transfer Conference, held at Beijing China, August 10-15, 2018.
67. Ramana Murthy, Ashok Babu T P and C Ranganayakulu, Experimental investigation of local heat transfer coefficient and frictional pressure drop during R134a condensation inside a plate-fin heat exchanger with serrated fins, Presented in NCRA 2018 held at NIT Suratkal, India, May 2018.
68. G Bhavani Sankar and C Ranganayakulu, A CRITICAL REVIEW OF CONDENSATION HEAT TRANSFER COEFFICIENT CORRELATIONS,Presented in Thermacomp2018 held at Indian Institute of Science,India, 9-11 July, 2018.
69. G BhavaniSankar and C Ranganayakulu, Confıguratıon Studıes of an Aırcraft Envıronmental Control System usıng Exergy Analysıs, Presented in NCRA 2018 held at NIT Suratkal, India May 2018.
70. C Ranganayakulu, Veeredhi Vasudeva Rao, “Measurement of Heat Transfer Coefficient in a Compact Heat Exchanger with Lance and Offset Fins for water based Al₂O₃Nanofluids”, 24^th National and 2^nd International ISHMT-ASTFE Heat and Mass Transfer (ISHMT 2017), held at BITS Pilani Campus Hyderabad, India, Dec. 27-30,
71. G BhavaniSankar, C Ranganayakulu, Exergy Analysis of Aircraft Environmental Control System, 24^th National and 2^nd International ISHMT-ASTFE Heat and Mass Transfer, BITS Pilani campus Hyderabad, India, 27-30 Dec. 2017,
72. Ranganayakulu, Numerical analysis of Compact Plate-fin Heat Exchangers for Aerospace applications in 4^th international conference on “Computational Methods for Thermal Problems (Thermacomp 2016)” held at Georgia Tech, Atlanta, USA, 6-8 July, 2016 (keynote Talk).
73. Ranganayakulu, Visiting Researcher talk on “Design and Development of Environmental Control Systems and Compact Heat Exchangers for Aerospace applications” at UNISA, Johannesburg , South Africa, 25^th May 2016.
74. Ranganayakulu, Compact Heat Exchanger Analysis and Development for Aerospace Applications, Key note talk at 23^rd National Heat and Mass Transfer Conference & 1^th Int. ISHMT-ASTFE Heat and Mass Transfer Conference, ISRO, Trivandrum, Kerala, India, 2015. (Keynote talk)
75. Ranganayakulu, “Generation of Single-phase and Two-phase Design Data for Compact Heat Exchanger Fins for Aerospace Applications” 2^nd International workshop on Compact Heat exchangers , held at PES University, Bangalore, India, Dec. 21-22, 2015, Invited talk.
76. K V Ramana Murthy, Mahesh Bondhu, C. Ranganayakulu, T P Ashok Babu, V Vasudeva Rao, Development Of Vapour Compression Refrigeration System Test Rig And Evaluation Of Test Data For R134a Condensation In Compact Heat Exchangers With Serrated Fin, 11^th Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, HEFAT2015, University of Pretoria, South Africa, paper #1570073007, pp 184-193.
77. Ranganayakulu, Xing Luo, Stephan Kabelac, The Single-blow transient Testing technique for Offset and Wavy Fins of Compact Plate-fin heat excahngers, Proceedings of 23^rd National Heat and Mass Transfer Conference & 1^th Int. ISHMT-ASTFE Heat and Mass Transfer Conference,Trivandrum, Kerala, India, 2015.
78. BalaSundar Rao, G. Ranganath & C. Ranganayakulu, “Heat Transfer and pressure drop correlations of Rectangular perforated fin surface of a Compact Heat Exchanger" Int. Conference on advances in Design and Manufacturing, ICADM 14, NIT, Trichy, India, Dec. 5-7, 2014, Volume II, pp 1388-1393.
79. BalaSundar Rao, G. Ranganath & C. Ranganayakulu, "Development of Colburn ‘j’ factor and fanning friction factor ‘f’ correlations of Triangular Plain fins surface of a compact heat exchanger using CFD" Presented in Int. Conference on Sustainable Energy Resources, Materials and Technologies, ISERMAT-2015, No. 212, SSN College of Engineering, Chennai, 8-9 Jan 2015.
80. Ranganayakulu, “Steady state and transient analysis of Compact plate fin heat exchanger fins for generation of design data using CFD”, 3^rd International conference on computational methods for Thermal Problems, June 2-4, Lake Bled, Slovenia, 2014.
81. Ranganayakulu, Iris Mersmann, S. Kabelac,Boiling of   R134a   in  a   Compact Plate-fin  Heat Exchanger having Offset strip fins, Proceedings of 22^nd National Heat and Mass Transfer & 11^th ISHMT-ASME Heat and Mass Transfer Conference, held at IIT Kharagpur, India , 2013.
82. Ranganayakulu, Alternate Environmental Control System for Aircraft applications in view of Fuel saving and Renewable Energy, 2012 International Conference on Renewable Energy Policy, held at Taipei, Taiwan, 11-15 November 2012.
83. Ranganayakulu, CFD studies on Compact Plate-Fin Heat Exchangers and generation of design data, Second International Conference on Computational Methods for Thermal Problems, ThermaComp2011, September 5-7, 2011, Dalian, China, edited by X.K.Li, N.Massarotti and P.Nithiaras.
84. Sheik Ismail, Siva Kumar, C. Ranganayakulu, Evaluation of Ejector Performance for Aircraft Compact Heat Exchanger, XX National Heat and Mass Transfer & IX ISHMT-ASME Heat and Mass Transfer Conference, held at IIT, Mumbai, India, January 4-6, 2010.
85. Ranganayakulu C., FEM and CFD analysis of Compact Plate –fin Heat Exchangers for Aerospace Applications, International Workshop on Compact Heat Exchangers for Aerospace Applications, held at Aeronautical Development Agency, Bangalore, India, 8^th - 9^th January 2010.
86. Sheik Ismail, N. GovindhaRasu, C. Ranganayakulu, M.A. Ramaswamy, CFD on Multi Jet Ejector Configuration for Improvement of Aircraft Compact Heat Exchanger Performance, 7^th International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: From Micro-scale Phenomena to Industrial Applications, CHE-28, Presented at Costa Rica, 238-246, September 13-18, 2009.
87. Ranganayakulu C., Ismail L. S., Vasudeva Rao V., Rajeshwar S., Optimization of Wavy Fin Parameters in Compact Heat Exchangers, Proceedings of XIX National Heat and Mass Transfer & VIII ISHMT-ASME Heat and Mass Transfer Conference, held at JNTU, Hyderabad, India, January 3-5, 2008.
88. Ranganayakulu C., Development and Optimisation of Compact Heat Exchangers for Single Phase and Phase Change Applications, presented in Indo_German workshop held at New Delhi, 30^th-1^st November, 2008.
89. Bhaskar A. C., Ranganayakulu C., Paul Vizhial, Mohan Rao T., Design of Qualification Test Facility and Endurance Tests of Compact Heat Exchanger, Proceedings of 13^thInternational Symposium on Air Breathe Engines (ISABE-13) held at Beijing, China, September 2007.
90. Ranganayakulu C., Ismail L. S., Shah R. K., Numerical Study of Flow Patterns of Compact Plate Fin Heat Exchangers and Generation of Design Data for Offset and Wavy Fins, 6^th International Conference on Compact and Ultra Compact Heat Exchanger; Science, Engineering and Technology, held at Potsdam, Germany, CHE2007-0016, pp 113-122, September 16-21, 2007.
91. Ranganayakulu C., Ismail L. S., Vasudeva Rao V., Rajeshwar S., Ramu M., Investigation of Waviness of Wavy Fins and Maldistribution Effects on the Performance of Compact Plate Fin Heat Exchanger, Proceedings of International Conference on Trends in Product Life Cycle, Modeling, Simulation and Synthesis PLMSS-2006, 159-168, Indian Institute of Science, Bangalore, India, 2006.
92. Ranganayakulu C., Ismail L. S., Vasudeva Rao V., Rajeshwar S., Ramu M., Effects of Flow Maldistribution in a Compact Plate-Fin Heat Exchanger for Aerospace Applications – a CFD Approach, Proceedings of 17^th International Symposium on Transport Phenomena (ISTP17), No. 2 C-III-3, Toyama, Japan, 2006.
93. Ranganayakulu C., Ismail L. S., Vengudupathi C., Uncertainties in Estimation of Colburn Factor (j) and Friction Factor (f) for Offset Strip Fin and Wavy Fin Compact Heat Exchanger Surfaces, Proceedings of XVIII National Heat and Mass Transfer & VII ISHMT-ASME Heat and Mass Transfer Conference, IIT Guwahati, India, 1096-1103, 2006.
94. Ranganayakulu C., Gerrard Herres, Heat Transfer from Horizontal Tubes in Pool Boiling: Influence of 3-Dimensional Heat Conduction in the Wall of the Evaporator Tube and Fouling Aspects, Proceedings of International Conference on Heat Exchanger Fouling, KlosterIrsee, Germany, 2005.
95. Ranganayakulu C., Seetharamu K. N., The Effects of Inlet Fluid Temperature Non-Uniformity in Cross Flow Plate-Fin Heat Exchangers, Proceedings of XVII National Heat and Mass Transfer & VI ISHMT-ASME Heat and Mass Transfer Conference, IGCAR, Kalpakkam, India, 2004.
96. Dieter Gorenflo, Danger E., Andrea Luke, Stephan K., Chandra U., Ranganayakulu C., Bubble Formation with Pool Boiling on Tubes with or Without Basic Surface Modification for Enhancement, Proceedings of V Int. Conference of Boiling Heat Transfer, Jamaica, 2003.
97. Ranganayakulu C., Panigrahi A., Influence of Header Design on Pressure Drop and Thermal Performance of a Compact Heat Exchanger, Proceedings of III International Conference on Compact Heat Exchanger for Process Industries, Davos, Switzerland, 251-258, 2001.
98. Ranganayakulu C., Murthy T. S. R., Koushik P. S., On Flow Control of Kerosene based Inflammable Fluids at High Temperature, Proceedings of International Conference on Fluid Flows, Palghat, India, 2000.
99. Ranganayakulu C., Seetharamu K. N., The Combined Effects of Wall Longitudinal Heat Conduction and Inlet and Fluid Flow Non-uniformity on Thermal Performance of Cross Flow Tube-Fin Heat Exchanger- a Finite Element Method, Proceedings of I International Conference on Compact Heat Exchangers for Process Industries, Snowbird, USA, 425-437, 1997.
100. Ranganayakulu C., Seetharamu K. N., Sreevatsan K. V., The Performance Evaluation of Cross Flow Tube-Fin Heat Exchanger Considering the Effects of Inlet Flow Non-uniformity and Temperature Non-uniformity using a Finite Element Method, Proceedings of 9^th International Confereence on Numerical Methods in Thermal Problems, Atlanta, USA, IX, 1010-1021, 1995
101. Ranganayakulu C., Seetharamu K. N., Sreevatsan K. V., The Performance Evaluation of Cross Flow Tube-Fin Heat Exchanger Considering the Combined Effects of Inlet Flow Non-uniformity and Temperature Non-uniformity using a Finite Element Method, Proceedings of XIII National Heat and Mass Transfer & III ISHMT-ASME Heat and Mass Transfer Conference, REC, Surathkal, India, 713-718, 1995.
102. Ranganayakulu C., Seetharamu K. N., Sreevatsan K. V., The Effect of Longitudinal Heat Conduction in Cross Flow Compact Heat Exchanger, Proceedings of XI National Heat and Mass Transfer & I ISHMT-ASME Heat and Mass Transfer Conference, IIT Madras, India, 57-62, 1991.
103. Ranganayakulu C., Development of Environmental Control Systems and Compact Heat Exchangers for Aerospace Application, INAE e-annals, 2016.
104. Ranganayakulu C., BhavaniSankar, “ Emerging Trends in Aircraft Environmental Control System” National conference on Emerging Trends in Mechanical Engineering (e-TIME’16), 24^th Aug 2016, JNTUACE, Anathapuram, India
105. Ranganayakulu C.,Design and Development of Compact Heat Exchangers for Aerospace Applications, National workshop on Heat Exchangers, 23-24 December, 2014, PESIT, Bangalore.
106. K V Ramana Murthy, J N Raghu, Ranganayakulu, T P Ashok Babu, Generation of Heat Transfer Coefficient and Friction Factor Correlations for Lance & Offset Fins of a Compact Heat Exchanger for water using CFD Analysis, 16th Annual CFD Symposium, Bangalore, CP26, pp 107-111, August 11-12, 2014.
107. Ranganayakulu C.,Generation of Colburn ‘j’ factor and friction ‘f’ factors for Compact Heat Exchanger fins , Symposium on Micro and Nano Scale Heat Transfer & its Applications,26-27 December, 2013, PESIT, Bangalore.
108. K V Ramana Murthy, Ranganayakulu C, CFD Analysis of Flow Distribution in Compact Plate Fin Heat Exchanger Header Using Baffle Plate, 14^th annual CFD Symposium, August 10-12, 2012.
109. Ranganayakulu C., L. Sheik Ismail, CFD Analysis of Compact Plate Fin Heat Exchangers, Presented in National Workshop on CFD2K9, held at MVJ College of Engineering, Bangalore, 6^th May 2009.
110. Srinivasula Reddy Pilli, Sheik Ismail, Ranganayakulu, V. Vasudeva Rao, Heat Transfer and Flow friction correlations for Compact wavy plate fin heat Exchangers, 19th National 8th ISHMT ASME HMT Conference, Hyderabad, 2008
111. Ranganayakulu C., L.Sheik Ismail, K.N. Seetharamu, Numerical and Experimental Studies on Compact Plate-Fin Heat Exchangers for Aerospace Applications, Proceedings of 35th National conference on Fluid Mechanics and Fluid Power, PESIT, Bangalore, December 2008.
112. Ranganayakulu C., Ismail L. S., Vasudeva Rao V., Rajeshwar S., Ramu M., Optimization of Compact Plate-Fin Heat Exchanger – a CFD Approach, Proceedings of Technological Advancements in Mechanical Engineering, Sreenidhi Institute of Science and Technology, Hyderabad, India, 2007.
113. Ranganayakulu C., Ismail L. S., Vasudeva Rao V., Rajeshwar S., Ramu M., Effects of flow maldistribution in a compact plate fin heat exchanger for Aerospace applications – a CFD approach, Proceedings of 17^th International Symposium on Transport Phenomena, Sreenidhi Institute of Science and Technology, Hyderabad, India, 2006.
114. Ranganayakulu C., Ismail L. S., Vasudeva Rao V., Optimization of Compact Plate-Fin Heat Exchanger Performance – a case study through CFD, Proceedings of National Workshop on Computational Fluid Dynamics, Sreenidhi Institute of Science and Technology, Hyderabad, India, 8-10 March 2006.
115. Ranganayakulu C., Subramanyam P. S., Strategic Initiatives in Aircraft Mechanisms, Proceedings of Workshop on Aerospace Mechanisms at Indian National Society for Aerospace and Related Mechanisms, Hyderabad, India, 2005.
116. Ranganayakulu C., Mechanical and Avionics Systems of Light Combat Aircraft, National Indigenization workshop, presented at Maintenance Command, Indian Air Force, Nagpur, India, 28-30 November 2005.
117. Ranganayakulu C., Compact Heat Exchangers for Aerospace Applications, Proceedings of Work shop on Heat Exchangers – Design and Optimization, IIT Delhi, India, 2004.
118. Ranganayakulu C., Panigrahi A., Influence of Header Design on Pressure Drop and Thermal Performance of a Compact Heat Exchanger, Proceedings of 3^rd National Conference on Thermal Systems held at Banaras Hind University, Varanasi, India, 178-184, 2001.