Dr How Heoy Geok Email: [email protected] Dr How Heoy Geok is a lecturer in the School of Engineering, Computing and Built Environment, UOW Malaysia KDU Penang University College. She obtained her PhD in Mechanical Engineering from Universiti Malaya (UM). Also, she received her MSc in Mechanical and Materials Engineering and B.Eng degree in Manufacturing Engineering from Universiti Kebangsaan Malaysia (UKM). Her research interests include combustion & fuel engineering, biofuels, tribology, automotive and internal combustion engines. She has published in a number of high impact journals and conference proceedings in the field of renewable energy and alternative fuels. She is serving as a journal reviewer for renowned local scholarly journals and international journals from Elsevier. Qualifications PhD Universiti Malaya (UM), 2010 – 2018 Research Title: Optimization of Fuel Injection Parameters for Low Exhaust Emissions of a Biodiesel Fueled Common-Rail Diesel Engine Master of Science (Mechanical & Materials Engineering) Universiti Kebangsaan Malaysia (UKM), 2007 – 2010 Research Title: Development of A Spark Plug Fuel Injector for Compressed Natural Gas Direct Injection in Spark Ignition Engine Bachelor of Engineering (Hons) Universiti Kebangsaan Malaysia (UKM), 2003 – 2007 Research & Publications Year Title 2021 Journal Publications How, H.G, Teoh, Y., Krishnan, B.N., Le, T., Nguyen, H., and Prabhu, C. (2021). Prediction of Optimum Palm Oil Methyl Ester Fuel Blend for Compression Ignition Engine using Response Surface Methodology. Energy: p. 121238 https://doi.org/10.1016/j.energy.2021.121238 Jason, Y.J.J., How, H.G., Teoh, Y.H., Sher, F., Chuah, H.G., and Teh, J.S. (2021). Tribological Behaviour of Graphene Nanoplatelets as Additive in Pongamia Oil. Coatings, 11(6): p. 732 https://doi.org/10.3390/coatings11060732 Teh, J.S., Teoh, Y.H., How, H.G., Le, T.D., Jason, Y.J.J., Nguyen, H.T., and Loo, D.L. (2021). The Potential of Sustainable Biomass Producer Gas as a Waste-to-Energy Alternative in Malaysia. Sustainability, 13(7): p. 3877 https://doi.org/10.3390/su13073877 Teoh, Y.H., How, H.G., Sher, F., Le, T.D., Nguyen, H.T., and Yaqoob, H. (2021). Fuel Injection Responses and Particulate Emissions of a CRDI Engine Fueled with Cocos nucifera Biodiesel. Sustainability, 13(9): p. 4930 https://doi.org/10.3390/su13094930 Teoh, Y.H., How, H.G., Sher, F., Le, T.D., Ong, H.C., Nguyen, H.T., and Yaqoob, H. (2021). Optimization of Fuel Injection Parameters of Moringa oleifera Biodiesel-Diesel Blend for Engine-Out-Responses Improvements. Symmetry, 2021. 13(6): p.982 https://doi.org/10.3390/sym13060982 2020 Journal Publications How, H.G., Hwang, J.W.S., Teoh, Y.H., Chuah, H.G., Yeoh, J.J.J., and Teh, J.S. (2020). Investigation of the Corrosion Metals in Moringa Biodiesel Fuel. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 75(1): p. 94-103 https://doi.org/10.37934/arfmts.75.1.94103 Jason, Y.J.J., How, H.G., Teoh, Y.H., and Chuah, H.G. (2020). A Study on the Tribological Performance of Nanolubricants. Processes, 8(11): p. 1372 https://doi.org/10.3390/pr8111372 Teoh, Y.H., How, H.G., Balakrishnan, N.K., Le, T.D., and Nguyen, H.T. (2020). Performance, Emissions, Combustion and Vibration Analysis of a CI Engine Fueled with Coconut and Used Palm Cooking Oil Methyl Ester. Processes, 8(8): p. 990 https://doi.org/10.3390/pr8080990 Teoh, Y.H., How, H.G., Le, T.D., and Nguyen, H.T. (2020). Study of Performance, Emissions, and Combustion of a Common-Rail Injection Engine Fuelled with Blends of Cocos nucifera Biodiesel with Diesel Oil. Processes, 8(10): p. 1287 https://doi.org/10.3390/pr8101287 Teoh, Y.H., How, H.G., Le, T.D., and Nguyen, H.T. (2020). Alexandrian Laurel for Biodiesel Production and its Biodiesel Blends on Performance, Emission and Combustion Characteristics in Common-Rail Diesel Engine. Processes, 8(9): p. 1141 https://doi.org/10.3390/pr8091141 Teoh, Y.H., How, H.G., Peh, C.G., Le, T.D., and Nguyen, H.T. (2020). Implementation of Common Rail Direct Injection System and Optimization of Fuel Injector Parameters in an Experimental Single-Cylinder Diesel Engine. Processes, 8(9): p. 1122 https://doi.org/10.3390/pr8091122 Teoh, Y.H., Krishnan, B.N., How, H.G., Ganesan, S., Yu, K.H., and Huspi, H.A. (2020). Analytical Study of Performance and Emission Characteristics of a Palm Biodiesel Fuelled Engine using Response Surface Methodology. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 75(1): p. 127-136 https://doi.org/10.37934/arfmts.75.1.127136 Yaqoob, H., Teoh, Y.H., Jamil, M.A., Din, Z.U., Hassan, M.U., Jamil, M., and How, H.G. (2020). Feasibility Study of a 50 MW wind farm project in Pakistan. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 74(2): p. 27-42 https://doi.org/10.37934/arfmts.74.2.2742 2019 Journal Publications Chuah, H.G., Tan, W.H., Chang, B.P., Khoo, T.S., Khor, C.Y., and How, H.G. (2019). The Influence of Surface Roughness on Material Dislocation of Microindentation Using Bonded Interface Technique. Tribology-Materials, Surfaces & Interfaces, 13(4): p. 191-196 https://doi.org/10.1080/17515831.2019.1643074 How, H.G., Teoh, Y., Masjuki, H., Nguyen, H.-T., Kalam, M., Chuah, H., and Alabdulkarem, A. (2019). Impact of Two-Stage Injection Fuel Quantity on Engine-Out Responses of a Common-Rail Diesel Engine Fueled with Coconut Oil Methyl Esters-Diesel Fuel Blends. Renewable Energy, 139: p. 515-529 https://doi.org/10.1016/j.renene.2019.02.112 Teoh, Y.H., How, H.G., Masjuki, H.H., Nguyen, H.-T., Kalam, M., and Alabdulkarem, A. (2019). nvestigation on Particulate Emissions and Combustion Characteristics of a Common-Rail Diesel Engine Fueled with Moringa Oleifera Biodiesel-Diesel Blends. Renewable Energy, 136: p. 521-534 DOI: https://doi.org/10.1016/j.renene.2018.12.110 2018 Journal Publications How, H.G., Masjuki, H.H., Kalam, M., and Teoh, Y.H. (2018). Influence of Injection Timing and Split Injection Strategies on Performance, Emissions, and Combustion Characteristics of Diesel Engine Fueled with Biodiesel Blended Fuels. Fuel, 213: p. 106-114. https://doi.org/10.1016/j.fuel.2017.10.102 How, H.G., Masjuki, H.H., Kalam, M., Teoh, Y.H., and Chuah, H.G. (2018). Effect of Calophyllum Inophyllum biodiesel-diesel blends on combustion, performance, exhaust particulate matter and gaseous emissions in a multi-cylinder diesel engine. Fuel, 227: p. 154-164. https://doi.org/10.1016/j.fuel.2018.04.075, How, H.G., Teoh, Y.H., Yu, K.H., Chuah, H.G., and Lim, K.W.S. (2018). Impact of Gasoline RON on Engine Vibration, Knock and Sound Level in a Single-Cylinder SI Engine. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 45(1): p. 73-81 https://www.akademiabaru.com/submit/index.php/arfmts/article/view/2183 Teoh, Y.H., How, H.G., Yu, K.H., Chuah, H.G., and Yin, W.L. (2018). Influence of Octane Number Rating on Performance, Emission and Combustion Characteristics in Spark Ignition Engine. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 45(1): p. 22-34. https://www.akademiabaru.com/submit/index.php/arfmts/article/view/2178 Teoh, Y.H., Masjuki, H.H., How, H.G., Kalam, M., Yu, K.H., and Alabdulkarem, A. (2018). Effect of Two-Stage Injection Dwell Angle on Engine Combustion and Performance Characteristics of A Common-Rail Diesel Engine Fueled with Coconut Oil Methyl Esters-Diesel Fuel Blends. Fuel, 234: p. 227-237. https://doi.org/10.1016/j.fuel.2018.07.036, YH, Teoh, HG, How, HH, M., and MA, K. (2018). Combustion Characteristics, Emissions and Engine Performances of a Split Injection Diesel Engine Fueled with Biodiesel Blended Fuels. Journal of Mechanical Engineering (JMechE), p. 217-229. http://ir.uitm.edu.my/id/eprint/41739 2017 Journal Publications Rashedul, H.K., Kalam, M.A., Masjuki, H.H., Teoh, Y.H., How, H.G., Monirul, I.M., and Imdadul, H.K. (2017). Attempts to Minimize Nitrogen Oxide Emission From Diesel Engine by Using Antioxidant-Treated Diesel-Biodiesel Blend. Environmental Science and Pollution Research, 24(10): p. 9305-9313 https://doi.org/10.1007/s11356-017-8573-9 Ruhul, A., Kalam, M., Masjuki, H., Shahir, S., Alabdulkarem, A., Teoh, Y., How, H.G., and Reham, S. (2017). Evaluating Combustion, Performance and Emission Characteristics of Millettia Pinnata and Croton Megalocarpus Biodiesel Blends in a Diesel Engine. Energy, 141: p. 2362-2376 https://doi.org/10.1016/j.energy.2017.11.096 2016 Journal Publications Imdadul, H., Masjuki, H., Kalam, M., Zulkifli, N., Alabdulkarem, A., Rashed, M., Teoh, Y., and How, H.G. (2016). Higher Alcohol–Biodiesel–Diesel Blends: An Approach for Improving the Performance, Emission, and Combustion of a Light-Duty Diesel Engine. Energy Conversion and Management, 111: p. 174-185 https://doi.org/10.1016/j.enconman.2015.12.066 Monirul, I., Masjuki, H., Kalam, M., Mosarof, M., Zulkifli, N., Teoh, Y., and How, H.G. (2016). Assessment of Performance, Emission and Combustion Characteristics of Palm, Jatropha and Calophyllum Inophyllum Biodiesel Blends. Fuel, 181: p. 985-995 https://doi.org/10.1016/j.fuel.2016.05.010 2015 Journal Publications Rashedul, H., Masjuki, H.H., Kalam, M., Teoh, Y., How, H.G., and Fattah, I.R. (2015). Effect of Antioxidant on the Oxidation Stability and Combustion–Performance–Emission Characteristics of a Diesel Engine Fueled with Diesel–Biodiesel Blend. Energy Conversion and Management, 106: p. 849-858 https://doi.org/10.1016/j.enconman.2015.10.024 Silitonga, A., Masjuki, H., Ong, H.C., How, H.G., Kusumo, F., Teoh, Y., and Mahlia, T. (2015). Engine Performance, Emission and Combustion in Common Rail Turbocharged Diesel Engine From Jatropha Curcas Using Artificial Neural Network. SAE Technical Paper, 32: p. 1-18 https://www.sae.org/publications/technical-papers/content/2015-32-0710/ Teoh, Y., Masjuki, H.H., Kalam, M., and How, H.G. (2015). Effect of Injection Timing and EGR on Engine-Out-Responses of a Common-Rail Diesel Engine Fueled with Neat Biodiesel. RSC advances, 5(116): p. 96080-96096 https://doi.org/10.1039/C5RA14831F Teoh, Y., Masjuki, H.H., Kalam, M., and How, H.G. (2015). Comparative Assessment of Performance, Emissions and Combustion Characteristics of Gasoline/Diesel and Gasoline/Biodiesel in a Dual-Fuel Engine. RSC advances, 5(88): p. 71608-71619 https://doi.org/10.1039/C5RA14624K Teoh, Y., Masjuki, H.H., Noor, I., Ali, B.S., Kalam, M., and How, H.G. (2015). Evaluation of a Novel Biofuel From Unwanted Waste and Its Impact on Engine Performance, Emissions, and Combustion Characteristics in a Diesel Engine. RSC Advances, 5(53): p. 42438-42447 https://doi.org/10.1039/C5RA04294A Wakil, M., Masjuki, H.H., Kalam, M., Teoh, Y., How, H.G., and Imtenan, S. (2015). Influence of Engine Operating Variable on Combustion to Reduce Exhaust Emissions Using Various Biodiesels Blend. RSC advances, 5(122): p. 100674-100681 https://doi.org/10.1039/C5RA16441A 2014 Journal Publications How, H.G., Masjuki, H., Kalam, M., and Teoh, Y. (2014). An Investigation of the Engine Performance, Emissions and Combustion Characteristics of Coconut Biodiesel in a High-Pressure Common-Rail Diesel Engine. Energy, 69: p. 749-759 https://doi.org/10.1016/j.energy.2014.03.070 How, H.G., Masjuki, H., Kalam, M., and Teoh, Y. (2014). Effect of Ethanol-Coconut Oil Methyl Ester on the Performance, Emission and Combustion Characteristics of a High-Pressure Common-Rail DI Engine. Applied Mechanics and Materials, 663: p. 19-25 https://doi.org/10.4028/www.scientific.net/AMM.663.19 How, H.G., Masjuki, H., Kalam, M., and Teoh, Y. (2014). Engine Performance, Emission and Combustion Characteristics of a Common-Rail Diesel Engine Fuelled with Bioethanol as a Fuel Additive in Coconut Oil Biodiesel Blends. Energy Procedia, 61: p. 1655-1659 https://doi.org/10.1016/j.egypro.2014.12.185 Mohamad, T.I. and How, H.G. (2014). Part-Load Performance and Emissions of a Spark Ignition Engine Fueled With RON95 And Ron97 Gasoline: Technical Viewpoint on Malaysia’s Fuel Price Debate. Energy Conversion and Management, 88: p. 928-935 https://doi.org/10.1016/j.enconman.2014.09.008 Teoh, Y., Masjuki, H., Kalam, M., Amalina, M., and How, H.G. (2014). Impact of Premixed Kerosene Fuel on Performance, Emission and Combustion Characteristics in Partial HCCI Engine. Energy Procedia, 61: p. 1830-1834 https://doi.org/10.1016/j.egypro.2014.12.223 Teoh, Y., Masjuki, H., Kalam, M., Amalina, M., and How, H.G. (2014). Effects of Jatropha Biodiesel on the Performance, Emissions, and Combustion of a Converted Common-Rail Diesel Engine. RSC Advances, 4(92): p. 50739-50751 https://doi.org/10.1039/C4RA08464K Teoh, Y., Masjuki, H., Kalam, M., Amalina, M.A., and How, H.G. (2014). Effect of Premixed Diesel Fuel on Partial HCCI Combustion Characteristics. Applied Mechanics and Materials, 2014. 663: p. 26-33 https://doi.org/10.4028/www.scientific.net/AMM.663.26 2013 Journal Publications How, H.G., Masjuki, H., Kalam, M., Teoh, Y., and Abdullah, M. (2013). Effect of Injection Timing on Performance, Emission and Combustion Characteristics of a Common-Rail Diesel Engine Fuelled with Coconut Oil Methyl Ester. SAE Technical Paper https://doi.org/10.4271/2013-01-2663 Mohamad, T.I. and How, H.G. (2013). Combustion Characteristics of Compressed Natural Gas in a Direct Microchannel-Injection Engine Under Various Operating Conditions. Applied Mechanics and Materials, 2013. 315: p. 793-798 https://doi.org/10.4028/www.scientific.net/AMM.315.793 Teoh, Y., Masjuki, H., Kalam, M., Amalina, M., and How, H.G. (2013). Impact of Waste Cooking Oil Biodiesel on Performance, Exhaust Emission and Combustion Characteristics in a Light-Duty Diesel Engine. SAE Technical Paper. https://doi.org/10.4271/2013-01-2679 2012 Journal Publications How, H.G., Teoh, Y., Masjuki, H., and Kalam, M. (2012). Impact of Coconut Oil Blends on Particulate-Phase PAHs and Regulated Emissions from a Light Duty Diesel Engine. Energy, 48(1): p. 500-509 https://doi.org/10.1016/j.energy.2012.10.009 2010 Journal Publications Mohamad, T.I., Harrison, M., Jermy, M., and How, H.G. (2010). The Structure of the High-Pressure Gas Jet From a Spark Plug Fuel Injector for Direct Fuel Injection. Journal of Visualization, 2010. 13(2): p. 121-131 https://doi.org/10.1007/s12650-009-0017-2 Mohamad, T.I., Yusoff, A., Abdullah, S., Jermy, M., Harrison, M., and How, H.G. (2010). The Combustion and Performance of a Converted Direct Injection Compressed Natural Gas Engine using Spark Plug Fuel Injector. SAE Technical Paper. https://doi.org/10.4271/2010-32-0078 2009 Journal Publications How, H.G., Mohamad, T.I., Abdullah, S., Ali, Y., and Shamsudeen, A. (2009). Experimental Investigation of Performance and Emissions of a Sequential Port Injection Compressed Natural Gas Converted Engine. SAE Technical Paper. https://www.sae.org/publications/technical-papers/content/2009-32-0026/ Research Grant / Consultancy Project 2020 RESEARCH GRANT (Co-PI) Title: Design and Development of High-Speed Rotor for Air-Cooled Eddy Current Dynamometer Duration:2020 – 2021 Sponsors/Grant: Public-Private Research Network (PPRN) grant (RM100,000) 2019 RESEARCH GRANT Title: Mechanism Study of the Tribological Effect of Nanoparticles as Lubricating Oil Additives for Biodiesel Engine Duration: Ongoing Sponsors/Grant: FRGS grant (RM107,200) Title: Experimental investigation of multi-stage fuel injection strategy on engine-out responses of diesel engine fueled with biodiesel-diesel fuel blends Duration: 12 months (2019) Sponsors/Grant: UOW Malaysia KDU Penang University College Research Grant (RM 16,500) 2018 RESEARCH GRANT (Co-PI) Title: Modelling of the effect of surface roughness in plastic strain gradient theory of indentation size effect for micro-indentation Duration: Ongoing Sponsors/Grant: FRGS grant (RM61,000) RESEARCH GRANT Title: Investigation of compositional instability and engine performance characteristics for non-edible biodiesel fuel Duration: Ongoing Sponsors/Grant: UOW Malaysia KDU Penang University College Research Grant (RM 10,000) Academic, Industry and Ministry Appointments 2021 Appointments as External Reviewer for Research Development Fund Xi’an Jiaotong-Liverpool University (XJTLU), China Appointments as Panelist International panel session for Global Climate Change Week (GCCW), University of Wollongong, 18 October 2021 Appointments as Reviewer ENERGY (Elsevier journal) FUEL (Elsevier journal) Supervision Masters Dissertation: Investigation of the tribological effect of nanoparticles as lubricant additives (Ongoing) Jason Yeoh Jun Jie Masters Dissertation: Modelling of the effect of surface roughness in plastic strain gradient theory of indentation size effect for micro indentation (Ongoing) Kok Weng Mei (Co-supervision) Awards and Recognitions 2020 UOWGE Global Staff Awards – Global Excellence in Research Award UOW Malaysia KDU 2020 Staff Awards – Research Excellence Award 2018 Best Research Publication Award (Science & Technology) – UOW Malaysia KDU Penang University College Best Research Award (Most Published in Scopus Category) – UOW Malaysia KDU Penang University College 2017 Best Research Award (Overall category) – KDU Penang University College Best Research Award (Science category) – KDU Penang University College 2010 Malaysia Technology Expo 2010 by Malaysian Association of Research Scientists, 4-6 February 2010, Kuala Lumpur, Malaysia – Bronze Spark Plug Fuel Injector 2009 Best Paper by Malaysian Award 15th Small Engine Technology Conference by SAE & JSAE, 3 -5 November 2009, Penang, Malaysia Best Paper Award: Mechanical & Material Engineering Proceeding of the Regional Engineering Postgraduate Conference, 20-21 October 2009, Putrajaya, Malaysia