Savo Gjirja
Savo Gjirja (born 11 December 1945, in Kavajë) is an Albanian research engineer who worked for the Volvo Corporation on the development of an ethanol fueled version of the car maker's TD73 diesel engine. He served as a professor at the Chalmers University of Technology in Gothenburg, Sweden.[1][2]
Work
Savo Gjirja is graduated as a mechanical engineer at Tirana's University, Faculty of Engineering in 1969. In September 1972 he was appointed a lecturer of the scientific teaching staff at the same Engineering Faculty. From 1979 to 1983 he worked and studied as a researcher in the Department of Energy Conversion at the University of Technology "Chalmers" of Gothenburg, Sweden, where he defended his PhD dissertation. Four years later, Savo returned to Albania and began work at the Polytechnic University of Tirana, where he was appointed in charge of the Machinery department at the Faculty of Mechanical Engineering (1984). During this time he led the scientific and educational process of the department. For his work, the Higher Attestation Commission awarded him the title of Professor in 1987, while the Presidium of the Albanian National Assembly honoured him by awarding the Order “Naim Frashëri”
In 1991 Gjirja was invited by the Swedish Institute and the Department of "Thermo and Fluid Dynamics" at Chalmers University of Technology to collaborate with other scientists on further research to develop methods of using ethanol as an alternative engine fuel. He is the author of several scientific publications and has participated in various international conferences. In 2012, on the occasion of the 100th anniversary of Albania's independence, the Town Hall of the Kavaja city honored him with the title of “City Gratitude”. Another passion of Savo is his love for literature. He wrote his first poem at the age of 15.
Some Aspects of the Research Work by Savo Gjirja
Libra, Tekste Mësimore dhe Monografi (Books, Textbooks and Monographs)
. Savo Gjirja, "Hidrodinamika e Anijeve.", Shtëpia Botuese e Librit Universitar,Universiteti Politeknik, faqe 220, Tiranë, 1976. ("Ships Hydrodynamics.", University Books Publishing House, Polytechnic University, page 220, Tirana 1976).
2. Savo Gjirja, "Dinamika dhe Konstruksioni i Lokomotivave.", Shtëpia Botuese e Librit Universitar, Universiteti Politeknik, faqe154, Tiranë, 1978. ("Dynamics and Construction of Locomotives.", University Books Publishing House, Polytechnic University, page154, Tirana, 1978.)
3. Savo Gjirja, "Disa Efekte në Termodinamikën e Motorave.”, Universiteti Politeknik, faqe186, Tiranë, 1979. ("Some Effects on Engines Thermodynamics.", Polytechnic University, page186, Tirana,1979.)
4. Savo Gjirja, et. al, "Bazat e Riparimit të Makinave." Shtëpia Botuese e Librit Shkollor, faqe 206, Tiranë, 1986. ("The Basics of Auto Repair.", School Books Publishing House, page 206, Tirana, 1986.)
5. Savo Gjirja, "Hidrodinamika dhe Diagnostikimi i Sistemeve Mekanike.”. Shtëpia Botuese e Librit Universitar, faqe 234, Tiranë,1987. ("Hydrodynamics and Mechanical Diagnosis Systems." University Books Publishing House, page 234, Tirana, 1987)
6. Savo Gjirja, "Turbofryerja në Motorët me Djegie të Brendëshme." Shtëpia Botuese e Librit Universitar, faqe 90, Tiranë, 1988. ("Turbocharging in Internal Combustion Engines." University Books Publishing House, page 90, Tirana, 1988)
7. Savo Gjirja, "Konstruksioni dhe Dinamika e Makinave.”, Shtëpia Botuese e Librit Universitar, faqe 300, Tiranë 1989 ("The Construction and Vehicle Dynamics." University Books Publishing House, page 300, Tirana, 1989)
8. Savo Gjirja, "Modelimi Matematik dhe Diagnostikimi i Proçeseve Motorikë." Shtëpia Botuese e Librit Universitar, faqe 136, Tiranë, 1990. ("Mathematical Modeling and Diagnostics on Engine Processes." University Books Publishing House, page 136, Tirana, 1990)
9. Savo Gjirja, "Udhëzues Laboratorik në Motorët me Djegie të Brendëshme." Shtëpia Botuese e Librit Universitar, faqe 54, Tiranë 1990. ("Laboratory Tests on Internal Combustion Engines." University Books Publishing House, page 54, Tirana, 1990)
Technical-Scientific Publications (1981-1990)
1 Savo Gjirja, "Diesel Engine Condition Monitoring." (Int. Paper No 53). Chalmers University of Technology, Department of Energy Conversion, Division of System Technology for Thermal Power Engines, Sweden, 1981
2 Savo Gjirja, "Analytical Effect of Supersonic Flow on Turbocharger Performance." Chalmers University of Technology, Department of Energy Conversion, Division of System Technology for Thermal Power Engines, Sweden, 1981
3 Savo Gjirja, "Testing of Diesel Engine." (Tech. Paper Presented in the Institute for Schiffstechnik, WEGEMT) Berlin, Germany, 1981.
4 Savo Gjirja, "Diesel Engine with Gas Pulsation." (Int. Paper No 58), Chalmers University of Technology, Department of Energy Conversion, Division of System Technology for Thermal Power Engines, Sweden, 1981.
5 Savo Gjirja, "Condition Monitoring, Measurements on Stena Jutlandica Diesel Engine." (Int. Paper No 59), Chalmers University of Technology, Department of Energy Conversion, Division of System Technology for Thermal Power Engines, Presented at the Institute of Marine Engineering, Southampton, England, 1982.
6 Savo Gjirja, "Ignition Delay and Combustion Analysis, a Method to Approach the Real Processes of Internal Combustion Engines." (Int. Paper No 62). Chalmers University of Technology, Department of Energy Conversion, Division of System Technology for Thermal Power Engines, Sweden, 1982.
7 Savo Gjirja, "Diagnostics of the Turbo-charging System in Diesel Engine." Science & Engineering. European Abstracts, ISSN, Section C, London, 1983
8 Savo Gjirja, Harald Lange, "Diesel Engine Performance in Vector Space, or an Actual Evaluating System." (Paper, Engineering Journal ASME). USA,1983
9 Savo Gjirja, "Some Consideration about Evaluating Fuel Gas in Turbocharged Diesel Engine." (Presented at the Institution of Diagnostic Engineering, C / O Salisbury & Co. Leicester, England), 1983.
10 Savo Gjirja, "Proceset Pulsive, dhe Efektiviteti i Turbofryerjes së Motorave." Buletini Tekniko-Shkencor i Fakultetit të Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë, 1984. ("Pulsing Processes, and Efficiency of the Turbocharged Engine." Technical and Scientific Journal of the Mechanical Engineering Faculty, Polytechnic University, Tirana, 1984)
11 Savo Gjirja, "Injektimi Real dhe Vonesat e Ndezjes në Motorat me Djegie të Brëndëshme." Buletini Tekniko-Shkencor i Fakulteti të Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1986. ("Real Injection and Ignition Delays in Internal Combustion Engines." Technical and Scientific Journal of the Mechanical Engineering Faculty, Polytechnic University, Tirana, 1986).
12 Savo Gjirja, "Mekanizmi i Riformimit të Qafave të Boshteve Motorikë." Projekt i Fakultetit të Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë. 1986 ("The Mechanism of Reshaping the Necks of Engine Crankshafts." Project Study, Mechanical Engineering Faculty, Polytechnic University, Tirana, 1986)
13 Savo Gjirja. "Mekanizmi i Riformimit të Qafave të Bjellave." Projekt i Fakultetit të Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë. 1986. ("The Mechanism of Reshaping the Necks of the Piston Rod." Project Study, Mechanical Engineering Faculty, Polytechnic University, Tirana, 1986).
14 Savo Gjirja, "Riformimi i Profileve të Boshtëve me.Gunga" Projekt i Fakultetit të Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë. 1987. ("Reshaping Mechanism for the Crankshaft Radial Profiles.", Project Study, Mechanical Engineering Faculty, Polytechnic University, Tirana, 1987).
15 Savo Gjirja. "Stabilizimi i Presioneve Maksimale në Regjime të Pjesëshme në Motarat Diesel.” Projekt i Departamentit të Transportit, Tiranë, 1989. ("Stabilization of the Maximum Pressures in Partial Load of the Diesel Engine.", Department of the Transport Ministry, Tirana, 1989.)
16 Savo Gjirja, Naim Kuka. "Dinamika Vertikale dhe Horizontale e Vagonave në Sigurinë e Transportit Hekurudhor”. Buletini Tekniko-Shkencor i Fakultetit të Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë,1988. ("Vertical and Horizontal Dynamics of Carriages in the Railway Transport Safety." Technical and Scientific Journal of the Mechanical Engineering Faculty, Polytechnic University, Tirana, 1988.)
17 Savo Gjirja. "Shmangiet e Parametrave Motorikë dhe Indentifikimi i tyre ne Proceset Termodinamike të Motorave”. Botim Tekniko-Shkencor i Fakultetit të Inxhinierisë Mekanike në Universitetin Politekni, Tiranë 1988. ("Deviations of the Engine Parameters and Identifying their Thermodynamic Processes." Technical and Scientific Journal of the Mechanical Engineering Faculty, Polytechnic University, Tirana, 1988.)
18 Savo Gjirja. "Disa Aspekte Tekniko-Eksperimentale në Transportin Hekurudhor”. Departamenti i Transportit, Tiranë, 1989. ("Some Technical Aspects on Experimental Railway Transport.", Department of the Transport Ministry, Tirana, 1989).
19 Savo Gjirja. "Koregjimi i Karakteristikave të Karburatoreve për Motorat Kinez JIP B212 nëpërmjet Optimizimit të Xhiklerëve”. Ministria e Mbrojtjes dhe Akademia Ushtarake, Tiranë, 1990. ("Correction and Optimization of the Fueling Characteristics in Chinese JIP B212 Engines." The Ministry of Defence and Military Academy, Tirana, 1990.)
20 Savo Gjirja. "Optimizimi i Nivelit të Varfërimit të Përzierjes për Motorat Rumun ARO dhe Efekti në Konsumimin e Lëndeve Djegëse." Ministria e Mbrojtjes dhe Akademia Ushtarake, Tiranë,1990 ("Optimizing Level of the Impoverishment Mixing and the Effect on the Romanian ARO-Engine.", Ministry of Defence and Military Academy, Tirana, 1990)
21 Savo Gjirja. "Optimizimi i Seksionit Terthor të Karburatorëve Venturi për Motorat e Kamjonave Ushtarakë Rus ZIS-151, ZIL-157, Zis-150 për Minimizimin e Konsumimit të Lëndeve Djegse”. Ministria e Mbrojtjes dhe Akademia Ushtarake, Tiranë 1990. ("Optimization of the Fuelling Venturi Cross Section of Russian Military Trucks Engines ZIS-151, ZIL-157, ZIS-150. Optimization of the Fuel Consumption." The Ministry of Defence and the Military Academy, Tirana, 1990.)
22 Savo Gjirja, Andonaq Londo, "Analiza Spektrale e Sinjalëve Pulsive në Sistemet e Gazrave dhe Pompave të Presionit të Lartë për Diagnostikimin e Motorave”. Buletini Tekniko Shkencor i Inxhinierisë Mekanike të Universitetit Politeknik, Tiranë 1989. ("Spectral Analysis of the Pulsing Signals in Systems of the Exhaust Gas System and High Pressure Fuel Pumps for Engine Diagnosis." Technical and Scientific Journal of Mechanical Engineering, Polytechnic University, Tirana, 1989).
23 Savo Gjirja, "Considerata mbi Konvertimin e Motorave me Thithje Natyrale në Motora me Turbofryerje”. Buletini Tekniko Shkencor i Inxhinierisë Mekanike të Universitetit Politeknik, Tiranë. 1989. ("Considerations on Natural Intake System Conversion to Turbocharged System." Technical and Scientific Journal of Mechanical Engineering, Polytechnic University, Tirana, 1989.)
24 Savo Gjirja, Andonaq Londo, "Shmangiet e Parametrave në Termodinamikën e Motorave dhe Analiza e Tyre”. Buletini Tekniko Shkencor i Inxhinierisë Mekanike të Universitetit Politeknik, Tiranë, 1988. ("Deviations of Parameters in the Engine Thermodynamics and their Analysis.", Technical and Scientific Journal of Mechanical Engineering, Polytechnic University, Tirana, 1988.)
25 Savo Gjirja, "Efekti i Oshilimeve Vertikale në Stabilizimin e Vagonave Hekurudhore Buletini Tekniko Shkencor i Inxhinierisë Mekanike të Universitetit Politeknik, Tiranë, 1990. ("The Effect of Fluctuations in the Vertical Stabilization of the Railway Carriages.” Technical and Scientific Journal of Mechanical Engineering, Polytechnic University, Tirana, 1990.)
26 Savo Gjirja, "Aplikimi i Teknikës “Pattern Recognition” në Analizën e Karakteristikave të Motorave.”, Simpozium Tekniko Shkencor i Inxhinierisë Mekanike të Universitetit Politeknik, Tiranë, 1990. ("Application of Pattern Recognition Technique in the Analysis of the Engine Characteristics." .Symposium on Scientific Technique, Mechanical Engineering, Polytechnic University, Tirana, 1990)
Udhëheqie Shkencore për Studime Doktorature. Universiteti Politeknik Tiranë, (Supervizer for the “Doctor of Science” Studies. Polytechnic University of Tirana.)
27. "Reagimi i Sistemëve të Frenimit dhe Efekti në Stabilitetin e Makinave”. Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1988. (“The Reaction of the Braking System and the Effect on the Car Stability", Mechanical Engineering Faculty, Polytechnic University of Tirana, 1988)
28. "Sekuencat e Vagonave Hekurudhor në Përputhje me Destinacionin” Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1988. (“Railway Carriages Sequences According to the Purpose and Destinations", Mechanical Engineering Faculty, Polytechnic University of Tirana, 1988.)
29 "Proceset Pulsive ne Sistemin e Shkarkimit të Motorave si një Indikim i Kushtevë Motorike" Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë1989. (“Pulsing Processes in Engine Exhaust System as an Indication of the Engine Conditions” Mechanical Engineering Faculty, Polytechnic University of Tirana, 1989)
30. "Ripërdorimi i Energjisë së Gazeve në Motorat Termikë.", Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1990. (“Recycling of the Exhaust Gases in Thermal Engines.”, Mechanical Engineering Faculty, Polytechnic University of Tirana, 1990.)
31. "Sforcimet Termike në Pistonat e Motorave dhe Kufizimi i Fluksit Termik si një Alterantivë e Përmirësimit të Rendimentit Termik". Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë,1990. (“Thermal Flow Restriction as a Performance Improvement on Internal Combustion Engines”, Mechanical Engineering Faculty, Polytechnic University of Tirana, 1990).
27. "Reagimi i Sistemëve të Frenimit dhe Efekti në Stabilitetin e Makinave”. Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1988. (“The Reaction of the Braking System and the Effect on the Car Stability", Mechanical Engineering Faculty, Polytechnic University of Tirana, 1988)
28. "Sekuencat e Vagonave Hekurudhor në Përputhje me Destinacionin” Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1988. (“Railway Carriages Sequences According to the Purpose and Destinations", Mechanical Engineering Faculty, Polytechnic University of Tirana, 1988.)
29 "Proceset Pulsive ne Sistemin e Shkarkimit të Motorave si një Indikim i Kushtevë Motorike" Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë1989. (“Pulsing Processes in Engine Exhaust System as an Indication of the Engine Conditions” Mechanical Engineering Faculty, Polytechnic University of Tirana, 1989)
30. "Ripërdorimi i Energjisë së Gazeve në Motorat Termikë". Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1990. (“Recycling of the Exhaust Gases in Thermal Engines”, Mechanical Engineering Faculty, Polytechnic University of Tirana, 1990.)
31. "Sforcimet Termike në Pistonat e Motorave dhe Kufizimi i Fluksit Termik si një Alterantivë e Përmirësimit të Rendimentit Termik". Fakulteti i Inxhinierisë Mekanike në Universitetin Politeknik, Tiranë 1990. (“Thermal Flow Restriction as a Performance Improvement on Internal Combustion Engines”, Mechanical Engineering Faculty, Polytechnic University of Tirana, 1990).
Technical-Scientific Publications (Chalmers University of Technology, Sweden).
32. Savo Gjirjas, Erik Olsson. "The use of Neat Ethanol in a Turbocharged DI Diesel Engine Volvo TM101G." Chalmers University of Technology, Department of Thermo and Fluid Dynamics, CTH, ISSN 1101-9972. Sweden, 1994
33. Savo Gjirja, Erik Olsson, "An Experimental Investigation of the SP-700 Oil Additive Effect on the Volvo Truck TD73 Diesel Engine's Performance and Emissions.", Chalmers CIT Teknikpark, Thermo-flow AB, Sweden, 1994
34. Savo Gjirja, Erik Olsson. "Combustion Chamber and its Strain Modelling for Wood Powder Engine Injector Tests." Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Gothenburg, 1994.
35. Savo Gjirja, Erik Olsson. "Experimental Investigation on Emissions' Performance of the Volvo TD60B Engine Running on MK1 as well as on a Mixture of MK1 and Ethanol (E15)." Paper No.94-11, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Gothenburg, Sweden, 1994.
36 Savo Gjirja, Erik Olsson. "Experimental Investigation on Emissions Performance of the Volvo TD73 Diesel Engine Running on E15 Fuel MK1 and Etamix.", Paper No 94-12. Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Gothenburg, Sweden 1994.
37. Savo Gjirja, Erik Olsson, Anders Karlström, "Alcohol Ignition Engines with Ether as Improver." Literature review, Int. Publication No 96-27 Chalmers University of Technology, Department of Thermo and Fluid Dynamics, Gothenburg, Sweden, 1996
38. Savo Gjirja and Erik Olsson. "Experimental Investigation of the Magnetizers' Effect on a Diesel Engine Performance." CIT Thermo-flow AB, Gothenburg, Sweden, 1997.
39. Savo Gjirja and Erik Olsson, "The Trend of the Engine Performance According to the Gul-Engine Development." Part One, CIT Thermo-flow AB, Gothenburg, Sweden, 1997
40. Savo Gjirja and Erik Olsson, "The Trend of the Engine Performance According to the Gul-Engine Development." Part Two, CIT Thermo-flow AB, Gothenburg, Sweden, 1997
41. Savo Gjirja and Erik Olsson, "The Trend of the Engine Performance According to the Gul-Engine Development, Further Approach to the Real Performance." Part Three, CIT Thermo-flow AB, Gothenburg, Sweden, 1997
42. Savo Gjirja and Erik Olsson, "The Trend of the Engine Performance According to the Gul-Engine Development, Prediction of the Gul Engine Emissions." Part Four, CIT Thermo-flow AB, Gothenburg, Sweden,1997
43. Erik Olsson and Savo Gjirja, "Engine Performance and Emission Analysis of the Gul Engine", CIT Thermo-flow AB, Gothenburg, Sweden, 1998
44. Erik Olsson, Savo Gjirja. "On-board Manufactured Ethers as an Improver for Alcohol Ignition Engines. Reference Test Investigation with Poly-Ethylene Glycol (PEG) Ignition improver”. Combustion Engine Research Centre, Paper No.98-9. Chalmers University of Technology, Gothenburg, Sweden, 1998
45. Savo Gjirja, Erik Olsson. "Onboard Manufactured Ethers as an Improver for Alcohol Ignition Engines." (Effects of the DME Fumigation on Methanol Engine Performance and Emission Levels) Paper No.98 / 10, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Gothenburg, Sweden, 1998.
46. Savo Gjirja, Erik Olsson. "Engine performance and Emission Levels of the Volvo Bus THD 103KF Ignition Engine with Different PEG Improvers." Paper Akzzo Nobel No 98/11, Thermo & Fluid Dynamics, Chalmers University of Technology, Gothenburg, Sweden, 1998
47.Savo Gjirja, Erik Olsson, "Hydrogen-Peroxide Injection in the Inlet Air Duct of the Single Cylinder Engine and its Effect on Emission Levels and Engine Performance." Publication of CIT Thermo-flow AB, Gothenburg, Sweden, 1998.
48. Savo Gjirja, "Experimental Investigation of the Pilot Injection Effects on the AVL Single Cylinder Engine Performance." Volvo Project, CTH, Dept. of Thermo and Fluid Dynamics, Gothenburg , Sweden,1998
49. Erik Olsson, Savo Gjirja. "On-board Manufactured Ethers as an Improver for Alcohol Ignition Engines." Combustion Engine Research Centre Annual 1998. Chalmers University of Technology, Gothenburg, Sweden, 1998
50. Savo Gjirja, "Evaluations on Experimental Investigation of the Intake and Exhaust Gas Pressure Fluctuations in AVL Single Cylinder Diesel Engine." CTH - Volvo, Dept. of Thermo and Fluid Dynamics, Gothenburg, Sweden, 1998
51.Savo Gjirja, Erik Olsson. "Optimization of the GUL Inflow, 3d Engine Version.", CIT Thermo-flow. Chalmers, Gothenburg, Sweden, 1999.
52. Savo Gjirja, Erik Olsson. "Experimental Investigation and Thermodynamic Analysis of the GUL-3d Engine Version." CIT Thermo-flow, Chalmers,. Gothenburg, Sweden, 1999
53. Erik Olsson, Savo Gjirja. "On-board Manufactured Ether as an Improver for Alcohol Ignition Engines. Combustion Engine Research Centre. Annual Report, Sweden, 1999.
54. Erik Olsson, Savo Gjirja, and Andreas Eklund. "Fischer-Tropsch-Synthesis Fuels for Diesel Engine of the Future. Int. Paper No 00/01. CTH Dept. of Thermo and Fluid Dynamics. Gothenburg, Sweden, 2000.
55. Savo Gjirja. "Evaluations on Experimental Investigation of the Heat Transfer and Corrected AVL Emission Performance in Single Cylinder Diesel Engine." Volvo project, CTH Dept. of Thermo and Fluid Dynamics, Gothenburg, Sweden, 2000
56. Savo Gjirja, Erik Olsson. "Pressure Cylinder at Different Loads Prediction Based on Experimental Investigation of the GUL 3 Engine Version" CIT Thermo-flow, Chalmers. Gothenburg, Sweden, 2000
57.Savo Gjirja, Erik Olsson. "Experimental Investigation on Wood Powder Engine Performance and its Thermodynamics" CIT Thermo-flow, Chalmers, Gothenburg, Sweden, 2000.
58.Savo Gjirja, Ingemar Denbratt, "Evaluations on Experimental Investigation of the LPG Fueled Version of the Lister Petter Diesel Engine." Chalmers University of Technology, Division of Combustion and Multiphase Flow, Gothenburg, Sweden, March 2006
59 Savo Gjirja, Erik Olsson, "Development of an Ethanol Version of the Volvo Fuel Diesel Engine TD73." Presented at VTI & KFB Conference January 12–13, Linköping 1994
60 Savo Gjirja, Erik Olsson, "Development of an Ethanol Fuelled Diesel Engine." Paper 94EN066. Proceedings for the Dedicated Conference on the Motor Vehicle and the Environment Demands of the Nineties and Beyond. International Symposium on Automotive Technology and Automation ISATA. Aachen, Germany, 1994
61 Lars J. Pettersson, Sven G. Jaras, Sören Andersson, Per Marsh, Savo Gjirja, Erik Olsson. "Development of Exhaust Gas Catalysts for Ethanol-fuelled Heavy-Duty Vehicles in City Traffic" Presented at the 6_th Nordic Symposium on Catalysis, June 1–3, 1994, Hornbäk, Denmark 1994
62.Savo Gjirja, Erik Olsson, "Development of the Ethanol Fuelled Version of the Volvo TD 73 Diesel Engine." KFB Report, DNR. 92-230-742. ISBN 992-122469-7, Stockholm, Sweden, 1995
63. Savo Gjirja, "Engine Design Optimization for Running on Ethanol with Low Emissions." KFB Paper, Publication DNR. 94-141-742, ISBN 992-275040-6, Stockholm, Sweden, 1996
64. Savo Gjirja, "Engine Optimization a Practical Design Technology for Optimum Performance and Emissions of an Ethanol Fuelled Engine." International Symposium on Automotive Technology, 30th ISATA, Conference Proceedings Paper No EL97008, Florence, Italy, 1997
65. Savo Gjirja and Erik Olsson, "Ether as Ignition Improver and its Application on Ethanol Fueled Engine." Swedish Transport & Communications Research Board (KFB) Report, DNR. 96-478-011. ISBN 992-508902-6, Stockholm, Sweden, 1997
66. Savo Gjirja, Erik Olsson and Anders Karltröm "Fumigation Ether, a New Alternative for the Neat Ethanol Diesel Engine." Paper No EL98008, International Symposium on Automotive Technology, 31st ISATA, Clean Power & Fuels Sources. Innovative Special Conference: Intelligent Transportation Systems, Düsseldorf, Germany, in 1998.
67. Savo Gjirja, Erik Olsson and Anders Karlström, "Considerations on Engine Design and Fuelling Technique Effects on Quality in Alcohol Diesel Combustion Engine." SAE Paper No 982 530. International Conference on Fuels and Lubricants, San Francisco, California, 1998
68. Savo Gjirja, et al "Effects of the Engine Design and Fuelling Diesel Combustion Technique on Quality." Special publication of SAE Transaction SP1791. USA 1998
69. Savo Gjirja, Erik Olsson and Anders Karlström, "Investigation on Diesel Engine with DME Methanol Fumigation." Paper No CPE99007, International Symposium on Automotive Technology, 32nd ISATA, Clean Power Sources and Environmental Implication in the Automotive Industry. 14–18 June 1999, Vienna, Austria, 1999.
70. H. Armbruster, J. van Gunstren E. Olsson, and S. Gjirja. "On-board Conversion of Alcohol to Ethers for Fumigation in Diesel Engines." XIII ISAF Paper. International Symposium on Alcohol Fuels. Implementing the Transition to a Sustainable Transport System, Stockholm 3–6 February 2000.
71. Savo Gjirja, Erik Olsson, et.al. "Performance and Emission Analysis of a Non Conventional Gasoline Engine". Paper No 00FL-397 SAE. 2000 International Spring Fuels & Lubricants Meeting. June 19–22. Paris, France, 2000
72. Savo Gjirjas, Erik Olsson, Lars-Ola Olsson and Severin Ekman. "Experimental Investigation of the Hydrogen Peroxide Fumigation into the Inlet Duct of a Diesel Engine". Paper No 00FL-382. 2000. International Spring Fuels & Lubricants Meeting. June 19–22. Paris, France, 2000.
73. Savo Gjirja, Erik Olsson and Andreas Eklund. "Experimental Investigation of Fischer-Tropsch Fuels Impact on Single Cylinder Diesel Engine Performance. ISATA Paper No 2000. EL 33th International Symposium on Automotive Technolgy and Automation. September 25–29, 2000 Dublin, Ireland, 2000.
74 Jerzy Chomjak and Savo Gjirja. "Thermodynamics Evaluation of the Experimental Investigation on STID Engine Performance", Chalmers University of Technology, Gothenburg, Sweden, 2001
75. Savo Gjirja and Erik Olsson. "Peroxide Fumigation into the Inlet Duct and its Impact on Diesel Engine Performance. Trondhejm University, Norway, 2001.
76. Savo Gjirja et.al. "A New Paraffinic Fuel Emissions an Impact on Combustion Characteristics of a Diesel Engine." SAE Paper No.2002-01-2218, Paris, France 2002
77. Tanja Rente, Savo Gjirja and Ingemar Dembratt. "Experimental Study on the Influence of Nozzle orifice Number on Combustion and Emissions Formation of a Heavy Duty DI Diesel Engine." SAE Technical Paper No 2003-0167, ICE 2003 6-th International Conference on Engines for Automobile, CNR, Naples, Italy, 2003
78. Andreas Matsson, Savo Gjirja and Sven Andersson. "Comparing Different Grades of Hydro Grinded Nozzles in a Heavy Duty Diesel Engine." International Conference. SAE Paper Nr.2003-01-3420, San Francisco, USA 2003
79. Erik Olson, S Hiljemark, Savo Gjirja "Use of Alternative Fuels in Heavy Duty Engines." Paper No 19 Joint Meeting of the Scandinavian-Nordic and Italian Sections of the Combustion Institute. Stockholm, Sweden, 2003
80. H. Armbruster, S Stucki, E. Olsson, and S. Gjirja. "On-board Conversion of Alcohol to Ethers for Fumigation in Diesel Engines." Proceeding of the IMECHE Part D Journal of Automotive Engineering. (Professional Engineering Publishing). Volume 217 No 3 Page 155-164. 2003
81. Tanja Rente, Savo Gjirja, Ingemar Denbratt. "Experimental Study on the Influence of Nozzle orifice Number on Combustion and Emissions Formation of a Heavy Duty DI Diesel Engine. "NA SAE Technical Paper Series, No. 2003-01-67 SAE-NA & 6th International Conference on Engines for Automobile, Instituto Motori, CNR Viale Marconi, 8 80125 -Naples, Italy 2003
82. Tanja Rente, Savo Gjirja and Ingemar Denbratt. "Experimental Investigation of Injection Rate Shaping Injections in Multiple Effect Using A Heavy Duty DI Diesel Engine." Thermo and Fluid Dynamic Processes in Diesel Engines. International Conference. September 8–10, 2004, Valencia, Spain, 2004. International Journal of Engine Research, Spain, 2004
83. Tobias Husberg, Savo Gjirja, Ingemar Denbratt, and Johan Engström. "Visualization of EGR Influence on Diesel Combustion with Long Ignition Delay in a Heavy-Duty Engine." SAE Powertrain and Fluid Systems Conference, Inc., SAE Technical Paper No. 2004-01- 2947.Book Number SP-1896 Detroit, USA, 2004.
84. Tanja Rente, Savo Gjirja, and Ingemar Denbratt, "Experimental Investigation of the Effect of Needle Opening (NOP) Pressure on Combustion and Emissions Formation in Heavy Duty DI Diesel Engine." SAE Technical Paper No 2004-01-2921. Book Number SP-1900, USA, 2004.
85. Tobias Husberg, Savo Gjirja and Ingemar Denbratt. "Piston Temperature in a Heavy Duty Diesel Engine Run at Premixed Partly Conditions. Comparison of Thermo-graphic Phosphors and Thermocouples." SAE Paper No. 2004-05-313. Detroit, USA,. 2004
86. Tanja Rente, Savo Gjirja, Ingemar Denbratt, "Influence of Injection Parameters on the Local Crank Angle Resolved Piston Heat Flux on the Wall". International Journal on Combustion Science and Technology,. 2004
87. Tobias Husberg, Savo Gjirja, Ingemar Denbratt, Johan Engström, "Fuel Equivalence Ratio Rate Impact on Premixed Combustion and Emission Output on a Heavy-Duty Diesel Engine" SAE Paper NA section, Capri, Italy, 2005
88. Anna Liv, Savo Gjirja, Ingemar Denbratt, "Reduction of Soot Emissions from a Direct Injection Diesel Engine using Water-in-Diesel Emulsion and Micro-emulsion Fuels". Paper No. 2007-01-1076. Book Number SP-2090. Copyright © 2006 Society of Automotive Engineers, SAE Paper, International Congress. 2007.
89. Malin Alriksson, Savo Gjirja, Ingemar Denbratt. "The effect of Charge Air and Fuel Injection Parameters on Combustion with High Levels of EGR in a Single Cylinder Diesel Engine HDDI". Paper no. 2007-01-0914. Book Number SP-2076. Copyright © 2006 Society of Automotive Engineers, SAE Paper, International Congress. 2007
90. Valery Golovitchev, Junfeng Yang and Savo Gjirja. "Modeling of Combustion and Emissions Formation in Heavy Duty Diesel Engine Fueled by RME and Diesel Oil." SAE International paper No. 2009-24-0014. Capri, Italy, 2009
91. Savo Gjirja and Erik Olsson. "Performance Simulation of a Non Conventional Gasoline Engine MOD." SAE.org International Paper No. 2009-01-1458, Detroit, USA, 2009
92. Monica C Johansson, Malin Ehleskog, Savo Gjirja and Ingemar Denbratt. "Effects of Varying Engine Parameters Settings on Combustion, Emissions, Soot and Temperature Distributions in Low Temperature Combustion of Fischer-Tropsch and Swedish Diesel Fuels." SAE International Paper Nr. 2009-01-2787.[103436]. Saint Antonio, Spain, 2009
93. Malin Alriksson, Savo Gjirja and Ingemar Denbratt. "The Effect of High Injection Pressure on Combustion and Emissions in a HD Single Cylinder Diesel Engine", SAE International Paper No. 09SFL-0145, Capri, Italy, 2009
94. Malin Alriksson, Savo Gjirja and Ingemar Denbratt. "Effects of High Injection Pressure, EGR and Air Pressure on Combustion and Emissions in an HD Single Cylinder Diesel Engine", SAE International Journal of Engines, 2 (2), Page. 341-354 [Nr. 128034], 2009.
95. Golovitchev, V. Yang, J: Gjirja, S. “Modeling of Combustion and Emissions Formation in Heavy Duty Diesel Engine Fueled by RME and Diesel Oil, SAE Paper 091CE-0006. Page, 1-13. [10209], 2009.
96. Golovitchev, V. Yang, J Gjirja, S “. Modeling of Combustion and Emissions Formation in Heavy Duty Diesel Engine Fuelled by RME and Diesel Oil”, SAE International Journal of Engines. 2 (2), Page 355-367. [139550], 2010
97. Ehleskog, M.; Gjirja, S:; Denbratt, I. ”Effects of Variable Inlet Valve Timing and Swirl Ratio on Combustion and Emissions in a Heavy Duty Diesel Engine” SAE 2012, International Fuels and Lubrications Meeting, FFL 2012; Malmo, Sweden; 18 September 2012 through 20 September. [Nr. 192773]
98. Johansson, M.; Yang, J.; Gjirja, S. Ochotorena, R. et al. (2013). ”NOx and Soot Emissions Trends for RME, SME and PME Fuels Using Engine and Spray Experiments in Combination with Simulations.” International Journal for Fuel 106. Page 293-302. 176228]
AVL (single cylinder engine) Projects.
1 Pilot Experimental Investigation of the Effects on the CLE Injection Single Cylinder Engine Performance.", Volvo Project, 1998.
2 Experimental Investigation of the Hydrogen Peroxide Fumigation into the Inlet Duct of a Diesel Engine ". Project Chemiré AB, Gothenburg, 1998.
3 Investigation on Intake Pressure Fluctuations in AVL Research Engine, Volvo TU - Chalmers Project, Gothenburg, 1998.
4. Experimental Investigation on Temperature and Emission Performance Piston on the AVL Single Cylinder Engine. Volvo Project, Gothenburg, 1999.
5. Effects of Elliptical Holes Nozzle on the Combustion Processes in a Heavy Duty Diesel Engine. Volvo Project, Gothenburg, 1999.
6. Effects of Small Hole Injectors Nozzle on the Combustion of Heavy Duty Diesel Engine. Volvo Project, Gothenburg, 2000.
7. Fischer-Tropsch-Synthesis Engine Fuels, Fuel or Diesel-Fuel of the Future. Swedish National Energy Administration, Project No P11475, DNR. 5310-98-2926 1999.
8. Investigation on the New Bosch Injector with Boot Injection in AVL Research Engine. Volvo Project, Gothenburg, 1999.
9. Transfer Heat Through Oil and Cooling Water System in AVL Single Cylinder Engine, Volvo Project, Gothenburg, 2000.
10. Hydrogen Peroxide Fumigation into the Inlet Duct of the Diesel Engine and its Impact on Emission Performance. University Project, Trondheim, Norway, Sweden, 2001
Lecture Notes at Chalmers University of Technology (CTH), Gothenburg, Sweden
1. Exhaust Gas Emission Calculation and Corrections. Sampling Techniques and Their Evaluations. CTH. Thermo and Fluid Dynamics, 1991-1992-1993-1994-1995-1996-1997.
2. Wankel Rotary Engines. CTH. Thermo and Fluid Dynamics, 1992-1993 1993-19
3. Pressure Wave Supercharging, CTH. Thermo and Fluid Dynamics, 1991-1992-1993-1994
4. Alternative Fuelled Engines. CTH, Thermo and Fluid Dynamics, 1992-1993-1994-1995-1996-1997
5. Engine Thermo-chemistry and Solving Problems. CTH, and Thermo Fluid Dynamics, 1991-1992-1993-1994-1995