INTERNATIONAL Conference paper

  1. Chiu, H.H., Chen, W.H., Jiang, T.L., “Droplet Laws in Spray Combustion Processes (I),” AIAA-91-2313, AIAA/ASME/ASE 27th Joint Propulsion Conference, Sacramento, California, 1991.

  2. Chen, W.H., Chiu, H.H., Jiang, T.L., “Droplet Gasification in Liquid Rocket Combustion Processes,” ST-93-W.1.855, 44th Congress of the International Astronautical Federation, Oct. 16-22, Graz, Austria, 1993.

  3. Chen, W.H., Yau, W.C., “Method of Promoting Traditional Hot Strip Mill's Yield and Quality,” 39th International Conference on South and East Asia Iron & Steel Institute, May 22-25, Malaysia, 1995.

  4. Chen, W.H., Yau, W.C., “Analysis and Improvements of the Hot Strip Mill Processes,” Symposium on Steel Production Technology, Nov.20-22, Taiwan, 1995.

  5. Chen, W.H., Jiang, T.L., “Multiple Flame Configurations of Two Interactive Unequal-Sized Droplets in a Convective Flow,” AIAA-98-3836, 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, July, 13-15, Cleveland, Ohio, 1998.

  6. Chen, W.H., “Multiplicity of Flame Structures around a Pair of Porous Spheres in Tandem,” 36th Combustion Symposium of Japan, Nov.18-20, Sapporo, Japan, 1998.

  7. Liu, J.L., Chen, W.H., “Unsteady Flow Simulations of Two High-Speed Trains Passing by Each Other,” AIAA-99-0997, 37th AIAA Aerospace Sciences Meeting and Exhibit, January 11-14, Reno, Nevada, 1999.

  8. Chen, W.H., Liu, J.L., “Numerical Studies on Flame Structure of Two Interactive Droplets in Spray,” AIAA-99-0887, 37th AIAA Aerospace Sciences Meeting and Exhibit, January 11-14, Reno, Nevada, 1999.

  9. Chen, W.H., Jiang, T.L., “Multi-Brachial Flame Structures of Dual Droplets in Tandem,” 2nd Asia-Pacific Conference on Combustion, May 10-12, Tainan, Taiwan, 1999.

  10. Chen, W.H., Liu, C.C. and Jiang, T.L., “Numerical Investigation of Droplet Vaporization and Combustion Models Spray Combustion,” 17th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 25-30, Heidelberg, Germany, 1999.

  11. Chen, W.H., Liu, C.C., “Flame Structure and Vaporization of a Twin-Droplet System Affected by Partially Premixed Flows,” FEDSM2000-11029, 2000 ASME Fluids Engineering Summer Conference, June 11-15, Boston, USA, 2000.

  12. Chen, W.H., “Sulfur Dioxide Absorption by an Aerosol Droplet in Cloud with Various Reynolds Numbers,” 7th International Conference on Atmospheric Sciences and Applications to Air Quality (ASAAQ), Oct. 31-Nov. 2, Taipei, Taiwan, 2000.

  13. Chen, W.H., “Triple flames around Two Fuel Droplets in Flows with Fuel Vapor,” 18th International Colloquium on the Dynamics of Explosions and Reactive Systems, July 29- August 3, Seattle, Washington, USA, 2001.

  14. Chen, W.H., Lu, J.J., “Sulfur Dioxide Absorption in a Cloud Droplet under the Influence of Convective Flows,” 9th International Conference on Modeling, Monitoring and Management of Air Pollution, Sep. 12-14, Ancona, Italy, 2001.

  15. Chen, W.H., “Transient Sulfur Dioxide Absorption inside a Freely Falling Raindrop with Terminal Velocity,” 9th International Conference on Modeling, Monitoring and Management of Air Pollution, Sep. 12-14, Ancona, Italy, 2001.

  16. Chen, W.H., “Transient Sulfur Dioxide Uptake by an Aerosol Droplet in a Convective Flow,” 2nd International Conference on Computational Fluid Dynamics, July 15-19, Sydney, Australia, 2002.

  17. Chen, W.H., “Flame Evolution and Internal Heat Transfer of a Convective Droplet,” The 10th International Symposium on Flow Visualization, Aug. 26-29, Kyoto, Japan, 2002.

  18. Chen, W.H., “Mass Transfer Characteristics for a Variety of Gases Uptake by a Water Aerosol,” 6th International Aerosol Conference, Sep. 8-13, Taipei, Taiwan, 2002.

  19. Chen, W.H., “Interfacial Mass Transfer of a Water Droplet in Spray Tower,” 7th Annual Conference on Liquid Atomization and Spray Systems-Asia, Nov. 14-16, Tainan, Taiwan, 2002.

  20. Chen, W.H., Chen, J.S., Wu, S.F., Liu, J.C., Jiang, T.L., “Vaporization Modeling of a Fuel Droplet in High-Temperature Flows,” The 6th ASME-JSME Thermal Engineering Joint Conference, March 16-20, Hawaii, USA, 2003.

  21. Chen, W.H., “An Experimental Investigation on Burning Interaction in An Incinerator with Dual Combustion Chambers,” The 14th International Symposium on Transport Phenomena, July 6-9, Bali, Indonesia, 2003.

  22. Chen, W.H., Lu, J.J., “Internal Flow and Modeling of Sulfur Dioxide Uptake by a Moving Water Aerosol,” 2003 European Aerosol Conference, Aug. 31-Sep. 5, Madrid, Spain, 2003.

  23. Chen, W.H., “Carbon Dioxide Absorption by a Cloud Aerosol with Solid Nucleus,” 2003 European Aerosol Conference, Aug. 31-Sep. 5, Madrid, Spain, 2003.

  24. Chen, W.H., “Experimental Study on Gasification of Coal and Char Particles (CIWIPP31),” 30th Symposium (International) on Combustion, July 25-30, Chicago, USA, 2004.

  25. Chen, W.H., Hong, C.Y., “Mass Transfer of a Moving Liquid Aerosol with Deceleration,” 2004 European Aerosol Conference, Sep. 6-10, Budapest, Hungry, 2004.

  26. Chen, W.H., “An analysis of SO2 absorption by a stationary atmospheric water aerosol,” 2005 AAAR PM Supersites Conference, Feb. 7-11, Atlanta, Georgia, 2005.

  27. Chen, W.H., “HCl Uptake by a Convective Aerosol Droplet with Drag Force,” 2005 AAAR PM Supersites Conference, Feb. 7-11, Atlanta, Georgia, 2005.

  28. Chen, W.H., Lu, J.J., Hsieh, T.C., “Absorption Wave Propagation around a Cloud Droplet,” 4th Asia Aerosol Conference, Dec. 13- 16, Mumbai, India, 2005.

  29. Chen, W.H., Liu, C.C., “Transient Impingement Phenomenon of Two Droplets upon a Solid Wall in Sequence,” International Conference on Parallel Computational Fluid Dynamics 2006, May. 15- 18, Busan, South Korea, 2006.

  30. Chen, W.H., “Synthesis Gas Formation and Combustion from Coal Gasification,” 31th Symposium (International) on Combustion, August 6-11, Heidelberg, Germany, 2006.

  31. Chen, W.H., Wu, J.S., “Formations of Sub-micron and Nano Aerosol from Pulverized Coal Pyrolysis,” 2007 European Aerosol Conference, Sep. 9-14, Salzburg, Austria, 2007.

  32. Chen, W.H., Lu, J.J., “A Study on Heat Transfer and Energy Management for Slabs in a Reheating Furnace,” The Asian Symposium on Computational Heat Transfer and Fluid Flow, Oct. 18-21, Xi’an, China, 2007.

  33. Chen, W.H., Lin, M.R., Chiu, I.H., Jiang, T.L., Chen, M.H., “A Numerical Study on Hydrogen Generation from Water Gas Shift Reactions,” The 9th Asia-Pacific International Symposium on Combustion and Energy Utilization, Nov. 2-6, Beijing, China, 2008.

  34. Chen, W.H., Lu, J.J., Chiu, I.H., “Experimental Study on Unsteady Hydrogen Permeation across a Palladium Membrane,” Hydrogen Power Theoretical and Engineering Solutions International Symposium, April 1-3, Lisbon, Portugal, 2009.

  35. Chen, W.H., Chiu, T.W., Hung, C.I., “Numerical Study on Multiple Reaction Characteristics of Catalytic Partial Oxidation of Methane,” 22nd International Conference on Parallel Computational Fluid Dynamics 2010, May 17-21, Kaohsiung, Taiwan, 2010.

  36. Chen, W.H., Chiu, T.W., Hung, C.I., “Hydrogen Generation from Methane Catalytic Partial Oxidation with Heat Recirculation,” Renewable Energy 2010, June 27- July 2, Yokohama, Japan, 2010.

  37. Lin, M.R., Chen, W.H., Lu, J.J., Chao, Y, Leu, T.S., “Comparison of Hydrogen Production via one-stage and Two-stage Reactions,” The 21st International Symposium on Transport Phenomena, Nov. 2-5, Kaohsiung, Taiwan, 2010

  38. Wu, C.H., Chen, W.H., Hung, C.I, “Efficient Simulation of Local Seebeck Coefficient Measurement using Model Order Reduction,” The 21st International Symposium on Transport Phenomena, Nov. 2-5, Kaohsiung, Taiwan, 2010.

  39. Shen, C.H., Hsu, H.W., Hsieh, T.H. Sheu, J.Y., Chen, W.H., “Experimental Study of CWS Premixed Spray Feed in an Entrained Bed Gasifier,” The 21st International Symposium on Transport Phenomena, Nov. 2-5, Kaohsiung, Taiwan, 2010.

  40. Chen, W.H., Lu, J.J., Lin M.R. “Thermodynamic Analysis of Hydrogen Generation from Coke Oven Gas,” International Conference on Hydrogen Production (ICH2P-11), June 19-22, Thessaloniki, Greece, 2011.

  41. Lu, K.M., Chen, W.H., Chen, Y.Y., Hung, C.I, Lee W.J., Lin, T.C., “Unsteady SO2 absorption by a moving water aerosol with chemical dissociation”, 7th Asia Aerosol Conference (AAC 2011), Aug 17-20, Xi’an, China, 2011.

  42. Chen WH, Hou YL, Hung CI. Impact of droplet mutual interaction on carbon dioxide absorption process by a stationary droplet in spray. 2011 International Conference on Aerosol Science and Technology, October 12-14, Tainan, Taiwan, 2011.

  43. Lu, K.M., Chen, W.H., Chen, Y.Y., Hung, C.I, Lee W.J., Lin, T.C. A simplified model of predicting chemical SO2 absorption by a raindrop. 2011 International Conference on Aerosol Science and Technology, October 12-14, Tainan, Taiwan, 2011.

  44. Chen WH, Hou YL, Hung CI. Theoretical and numerical analysis on carbon dioxide capture by single droplets under droplet-droplet interaction in sprays. The 15th Annual Conference on Liquid Atomization and Spray Systems - Asia, ILASS-Asia 2011, October 20-21, Kenting, Taiwan, 2011.

  45. Chen WH, Hou YL, Hung CI, Wu YM. Carbon dioxide capture by single droplet in an acoustic fluctuation environment. 11th International Conference on Clean Energy (ICCE-2011), Nov. 2-5, Taichung, Taiwan, 2011.

  46. Chen WH, Lin BJ, Lin SC. Hydrogen production from the reactions of steam with activated carbon and carbon dioxide. 11th International Conference on Clean Energy (ICCE-2011), Nov. 2-5, Taichung, Taiwan, 2011.

  47. Wang CC, Hung CI, Chen WH. Thermal optimal design of the air-cooling system applied to the thermoelectric generator. 11th International Conference on Clean Energy (ICCE-2011), Nov. 2-5, Taichung, Taiwan, 2011.

  48. Chen JR, Hung CI, Chen WH. Numerical investigation on peformance of coal gasification under various injection patterns in an entrained flow gasifier. 11th International Conference on Clean Energy (ICCE-2011), Nov. 2-5, Taichung, Taiwan, 2011.

  49. Chen WH, Wang CC, Hung CH, Tsai CM. Property variation of three agricultural wastes from torrefaction. International Conference on Applied Energy (ICAE 2012), July 5-8, Suzhou, China, 2012.

  50. Lin BJ, Chen WH, Lee HM, Huang MH. Effect of carbon dioxide on direct DME synthesis under high space velocity. International Conference on Applied Energy (ICAE 2012), July 5-8, Suzhou, China, 2012.

  51. Chen JR, Chen WH, Hung CI. A numerical study on gasification phenomena of coal and torrefied biomass. International Conference on Applied Energy (ICAE 2012), July 5-8, Suzhou, China, 2012.

  52. Chen WH, Hsia MH, Chi YH, Lin YL, Yang CC. Concentration polarization in palladium-based membrane tube with high permeance. 11th International Conference on Sustainable Energy technologies (SET-2012), September 2-5, Vancouver, Canada, 2012.

  53. Chen WH, Yu AB, Du SW, Leu TS. Syngas production from steam reforming of coke oven gas for indirect reduction of iron oxides. 11th International Conference on Sustainable Energy technologies (SET-2012), September 2-5, Vancouver, Canada, 2012.

  54. Lu KM, Chen WH, Lee WJ, Lin TC. Pyrolysis characteristics and kinetics of torrefied wood and coal blends. 11th International Conference on Sustainable Energy technologies (SET-2012), September 2-5, Vancouver, Canada, 2012.

  55. Lu JJ, Chen WH, Lu KM, Zhuang YQ. Impact of thermal pretreatment by different atmospheres on the characteristics of corncob waste. 11th International Conference on Sustainable Energy technologies (SET-2012), September 2-5, Vancouver, Canada, 2012.

  56. Chen WH, Chen JR, Hung CI. A numerical study of gasification phenomena of biomass and coal. 3rd International Symposium on Gasification and its Applications, October 14-17, Vancouver, Canada, 2012.

  57. Chen WH, Lin BJ. Thermal behavior and hydrogen production from methanol autothermal reforming. Hydrogen + Fuel Cells 2003, June 16-19, Vancouver, Canada, 2013.

  58. Lee HM, Tzeng CC, Liang KC, Chen SH, Chen WH, Lin BJ. Pyrolysis of biomass with microwave and electrical heatings. tcBiomass2013, September 3-6, Chicago, USA, 2013.

  59. Kuo PC, Wu W, Chen WH. Design of a downdraft gasifier for syngas production using torrefied biomass. The 6th Asia-Pacific Congress on Catalyst, October 13-17, Taipei, Taiwan, 2013.

  60. Chen WH. Impact of CO2 addition on syngas formation in the catalytic partial oxidation of methane. International Conference on Innovative Design, Analysis and Development Practices in Aerospace and Automotive Engineering (I-DAD 2014), February, 22-24, Chennai, India, 2014.

  61. Lin SC, Chen WH, Huang MY. Catalytic partial oxidation of methane with the enhancement of dry reforming in an excess enthalpy reactor. International Conference on Applied Energy (ICAE 2014), May 30-June 2, Taipei, Taiwan, 2014.

  62. Chen WH, Wang CC, Hung CI. Cooling power and performance of a thermoelectric generator accompanied by a cooler. International Conference on Applied Energy (ICAE 2014), May 30-June 2, Taipei, Taiwan, 2014.

  63. Chen WH, Lin BJ, Liu SH, Juang TT, Tsai CM, Zhuang YQ. Characterization of solid and liquid products from bamboo torrefaction. International Conference on Applied Energy (ICAE 2014), May 30-June 2, Taipei, Taiwan, 2014.

  64. Chen WH. Current development of biomass torrefaction for solid fuel production. 13th International Conference on Clean Energy (ICCE 2014), June 8-12, Istanbul, Turkey, 2014.

  65. Lu JJ, Chen WH. Hydrogen and syngas production from the catalytic partial oxidation of methane with carbon dioxide addition. 1st International Symposium on Energy Challenges and Mechanics, July 8-10, Aberdeen, Scotland, UK, 2014.

  66. Chen WH, Tsai MH, Hung CI. Numerical prediction of CO2 captures process by a single droplet in alkaline spray. 17th Annual Conference on Liquid Atomization and Spray Systems – Asia (ILASS-Asia 2014), Oct. 26-29, Shanghai, China, 2014.

  67. Chen WH, Huang MY, Chang JS, Chen CY. Analysis of torrefaction operation for upgrading microalgae residue. The 7th International Conference on Applied Energy (ICAE 2015), March 28-31, Abu Dhabi, United Arab Emirates, 2015.

  68. Chen WH, Hsu CL, Du SW. Interaction of partial oxidation of coke oven gas and indirect reduction of iron oxides in blast furnace. The 7th International Conference on Applied Energy (ICAE 2015), March 28-31, Abu Dhabi, United Arab Emirates, 2015.

  69. Chen WH, Hsu CL, Du SW. An experimental study on pyrolysis of oil palm fiber and its pellet. The 5th International Conference on Engineering and Applied Sciences (ICEAS 2015), July 20-22, Hokkaido, Japan, 2015.

  70. Du SW, Yeh CP, Chen WH*, Tsai CH, Lucas JA. Combustion characteristics of coal particles in blast furnace raceway under various injection patterns and operations. The 13th International Conference on Liquid Atomization and Spray Systems (ICLASS 2015), August 23-27, Tainan, Taiwan, 2015.

  71. Chen WH*, Huang MY, Chang JS, Chen CY. Analysis of energy densification and utilization from the torrefaction of microalga residue. 2015 Asia Biohydrogen and Biorefinery Symposium (ABBS-2015), September 21-24, Kenting, Taiwan, 2015.

  72. Chen WH. Pretreatment of biomass by torrefaction for solid fuel production. The 12th International Conference on Ecomaterials (ICEM 2015), Nov. 8-12, Tainan, Taiwan, 2015.

  73. Chen WH, Shen CT, Lin BJ. An experimental study on hydrogen production from methanol partial oxidation over Pt/Al2O3 catalyst. International Conference on Hydrogen Production (ICH2P), May 8-11, Hangzhou, China, 2016.

  74. Chen WH. Novel Technologies of Hydrogen Production and Separation for Hydrogen Economy. The 6th East Asia Mechanical and Aerospace Engineering Workshop, June 2-4, Tainan, Taiwan, 2016.

  75. Chu YS, Chen WH, Lee WJ. Influence of enzyme immersing on bamboo thermal degradation. The 6th East Asia Mechanical and Aerospace Engineering Workshop, June 2-4, Tainan, Taiwan, 2016.

  76. Lin SC, Chen WH. Reaction behavior of catalytic partial oxidation of methane under the influence of CO2 and heat recovery. The 6th East Asia Mechanical and Aerospace Engineering Workshop, June 2-4, Tainan, Taiwan, 2016.

  77. Lin CN, Chen WH, Chi YH, Lin YL. Influence of gas composition on permeation resistance and activation energy of palladium membrane reactor. The 6th East Asia Mechanical and Aerospace Engineering Workshop, June 2-4, Tainan, Taiwan, 2016.

  78. Tsai CW, Chen WH, Lin YL. Configuration design of multi-channel Pd membrane for hydrogen separation with flexible operations. The 6th East Asia Mechanical and Aerospace Engineering Workshop, June 2-4, Tainan, Taiwan, 2016.

  79. Tran KQ, Bui HH, Chen WH. Distributed activation energy modelling for thermal decomposition of microalgae residues. The 2nd International Conference on Biomass (IConBM 2016), June 19-22, Sicilly, Italy, 2016.

  80. Chen WH. Progress in biomass torrefaction technology for upgrading solid fuels. Renewable Energy Sources - Research and Business (RESRB 2016),June 22-24, Wrocław, Poland, 2016.

  81. Chen WH, Tsai CW, Lin YL. Hydrogen recovery characteristics in a multichannel palladium membrane system. Renewable Energy Sources - Research and Business (RESRB 2016), June 22-24, Wrocław, Poland, 2016.

  82. Lin CN, Chen WH, Chi YH, Lin YL. Characterization of hydrogen permeation across palladium membrane in binary and ternary gas mixtures. The 2nd International Symposium on Engineering and Applied Science (ISEAS 2016), August 9-11, Hawaii, USA, 2016.

  83. Hamada J, Lin BJ, Pétrissans A, Chen WH, Gérardin P, Pétrissans M. Effect of silver pin’s forest management on radial density distribution, thermal behaviour and final quality of the heat treated wood. 2nd Conference – Innovative Production Technologies and Increased Wood Products Recycling and Reuse. September 29-30, Brno, Czech Republic, 2016.

  84. Chen WH. Development of torrefaction for upgrading biomass into solid fuel. The 13th International Conference on Combustion & Energy Utilization (ICCEU 2016), October 1-6, Taipei, Taiwan, 2016.

  85. Lin CN, Chen WH, Chi YH, Lin YL. Influence of gas composition on permeation resistance and activation energy of palladium membrane reactor. The 13th International Conference on Combustion & Energy Utilization (ICCEU 2016), October 1-6, Taipei, Taiwan, 2016.

  86. Chen WH, Chu YS, Lin SC, Lee WJ. Property variation of bamboo pretreated by bio-solution for solid fuel production. The 13th International Conference on Combustion & Energy Utilization (ICCEU 2016), October 1-6, Taipei, Taiwan, 2016.

  87. Chen YC, Chen WH, Lin BJ, Chang JS, Ong HC. Fuel property variation of biomass undergoing torrefaction. The 8th International Conference on Applied Energy (ICAE 2016), October 8-11, Beijing, China, 2016.

  88. Bach QV, Chen WH, Lin SC, Sheen HK, Chang JS. Effect of wet torrefaction on thermal decomposition behavior of microalga Chlorella vulgaris ESP-31. The 8th International Conference on Applied Energy (ICAE 2016), October 8-11, Beijing, China, 2016.

  89. Chen WH, Shen CT. Intensification of hydrogen production from methanol partial oxidation using sprays. 18th Annual Conference on Liquid Atomization and Spray Systems – Asia (ILASS-Asia 2016), Nov. 6-9, Chennai, India, 2016.

  90. Lin BJ, Pétrissans A, Rousset P, Chen WH, Pétrissans M. Kinetic parameters from wood thermal degradation under vacuum to implement a mathematic model. 5émes Journées du GDR Sciences du Bois - Bordeaux, November 8-10, Bordeaux, France, 2016.

  91. Chen WH, Hsu HJ, Kumar G, Budzianowski WM, Ong HC. Estimation of sugarcane bagasse torrefaction by interpolation and regression analysis. The 1st International Conference on Alternative Fuels: Future and Challenges (ICAF 2016), Dec. 2-4, Kayseri, Turkey, 2016.

  92. Chen WH, Hsu HJ. Prediction comparison of biomass torrefaction performance using different methods. Tokyo 12th International Conference on “Engineering & Technology, Computer, Basic & Applied Sciences” (ECBA- 2017), January 26-27, Tokyo, Japan, 2017.

  93. De Luna MD, Pillejera MK, Chen WH. Performance and structural evaluation of the torrefaction of bamboo under a high gravity environment (Higee) using a rotating packed bed. 253rd American Chemical Society National Meeting and Exposition, April 2-6, San Francisco, California, USA, 2017.

  94. Chen WH. Novel technologies of hydrogen production and separation. 9th International Exergy, Energy and Environment Symposium (IEEES-9), May 14-17, Split, Croatia, 2017.

  95. Chen CC, Tseng HH, Lin YL, Chen WH. Hydrogen production from ethanol steam reforming followed by water gas shift reaction. 9th International Exergy, Energy and Environment Symposium (IEEES-9), May 14-17, Split, Croatia, 2017.

  96. Chen WH, Lin SC. Biogas partial oxidation in a heat recirculation reactor for syngas production. The 9th International Conference on Applied Energy (ICAE 2017), August 21-24, Cardiff, UK, 2016.

  97. Chen WH, Pillejera MK, de Luna MD. Influence of reactor rotating speed on bamboo torrefaction. The 9th International Conference on Applied Energy (ICAE 2017), August 21-24, Cardiff, UK, 2016.

  98. Lin BJ, Silveira E, Colin B, Pétrissans A, Chen WH, Rousset P, Pétrissans M. Prediction of mass loss dynamics during wood thermal modification under industrial conditions. COST Action FP1407 and 3rd Conference- Wood modification research and applications, September 14-15, Kuchl/Salzburg, Austria, 2017.

  99. Chen WH. Recent progress in torrefaction for upgrading solid biomass fuels. 7th Congress on Biofuels and Bioenergy, Oct. 2-4, Toronto, Canada, 2017.

  100. Chen WH, Shen CT. An experimental study of methanol partial oxidation using various catalysts under sprays. 19th Annual Conference on Liquid Atomization and Spray Systems – Asia (ILASS-Asia 2017), Oct. 18-21, Jeju, Korea, 2017.

  101. Chen WH. Recent progress in torrefaction for upgrading solid biomass fuels. 2nd International on Alternative Fuels & Energy (ICAF 2017), Oct. 2-4, Toronto, Canada, 2017.