Dr How Heoy Geok

Dr How Heoy Geok

Email: heoygeok.how@kdupg.edu.my

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.

PhD Universiti Malaya (UM)
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)

Bachelor of Engineering (Hons) Universiti Kebangsaan Malaysia (UKM)

Year Title
2019 Y.H. Teoh, K.H. Yu, H.G. How and H.-T. Nguyen. Experimental investigation of performance, emission and combustion characteristics of a common-rail diesel engine fuelled with bioethanol as a fuel additive in coconut oil biodiesel blends. Energies. 2019, 12, 1954: 1-17. (ISI Q3)

H.G.How, Y.H.Teoh, H.H.Masjuki, H.-T.Nguyen, M.A.Kalam, H.G.Chuah, A.Alabdulkarem. 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. 2019; 139:515-529. (ISI Q1)

Y.H.Teoh, H.G.How, H.H.Masjuki, H.-T.Nguyen, M.A.Kalam, A.Alabdulkarem. Investigation on particulate emissions and combustion characteristics of a common-rail diesel engine fueled with moringa oleifera biodiesel-diesel blends. Renewable Energy. 2019; 136:521-534. (ISI Q1)

H.G. Chuah, W.H. Tan, B.P. Chang, S.T. Khoo, C.Y. Khor, H.G. How. Influence of surface roughness on material dislocation of microindentation using bonded interface technique. Tribology-Materials, Surfaces and Interfaces. 2019, 13(4): 191-196. (ISI Q2)

A.H. Hishammudin, Y. H. Teoh, Z. A. Zainal, H. G. How. Comparative Study of Performance, Emissions and Combustion Characteristics of Diesel/Gasoline and Diesel/Bioethanol Operating in a Dual-Fuel Engine. 5th International Conference on Recent Advances in Automotive Engineering (RECAR 2019), 20th – 22nd August 2019, Hotel Bangi-Putrajaya, Bangi, Selangor, Malaysia. (Conference paper)

Y.H. Teoh, H.G. How and B. Navaneetha Krishnan. Impact of EGR Variation on Combustion and Emission Characteristics in Diesel-Bioethanol Dual-Fuel Engine. International Conference on Renewable Energy Research & Challenge (ICoRER) and The 12th Regional Conference on Energy Engineering (RCEneE) 2019, 12th – 14th November 2019, Banyuwangi, Indonesia. (Conference paper)

2018 Y.H.Teoh, H.H.Masjuki, H.G.How, M.A.Kalam, K.H.Yu, A.Alabdulkarem. 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. 2018; 234:227-237. (ISI Q1)

Y.H.Teoh, H.G.How, H.H.Masjuki, M.A.Kalam. Combustion characteristics, emissions and engine performances of a split injection diesel engine fueled with biodiesel blended fuels. Journal of Mechanical Engineering. 2018;7 (1): 217-229. (Scopus Journal)

Yew Heng Teoh, Heoy Geok How, Kok Hwa Yu, Hun Guan Chuah, Wai Loon Yin. 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. 2018; 45(1): 22-34. (Scopus Journal)

H.G.How, H.H.Masjuki, M.A.Kalam, Y.H.Teoh, H.G.Chuah. Effect of Calophyllum Inophyllum biodiesel-diesel blends on combustion,performance, exhaust particulate matter and gaseous emissions in a multicylinder diesel engine. Fuel. 2018; 227: 154-164. (ISI Q1)

Heoy Geok How, Yew Heng Teoh, Kok Hwa Yu, Hun Guan Chuah, Kai Wen Samson Lim. 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. 2018. 45(1): 73-81. (Scopus Journal)

H.G. How, H.H. Masjuki, M.A. Kalam, Y.H. Teoh. Influence of injection timing and split injection strategies on performance, emissions, and combustion characteristics of diesel engine fueled with biodiesel blended fuels. Fuel. 2018; 213:106-114. (ISI Q1)

2017 A.M. Ruhul, M.A. Kalam, H.H. Masjuki, S.A. Shahir, Abdullah Alabdulkarem, H.G. How, S.S. Reham, Y.H.Teoh, Evaluating combustion, performance and emission characteristics of Millettia pinnata and Croton megalocarpus biodiesel blends in a diesel engine. Energy. 2017; 141:2362-2376. (ISI Q1)

H.K. Rashedul, M.A. Kalam, H.H. Masjuki, Y.H. Teoh, H.G. How, I.M. Monirul, & H.K. Imdadul. Attempts to minimize nitrogen oxide emission from diesel engine by using antioxidant-treated diesel-biodiesel blend. Environmental Science and Pollution Research. 2017; 1-9. (ISI Q2)

2016 I.M. Monirul, H.H. Masjuki, M.A. Kalam, M.H. Mosarof, N.W.M. Zulkifli, Y.H. Teoh, H.G. How. Assessment of performance, emission and combustion characteristics of palm, jatropha and calophyllum inophyllum biodiesel blends. Fuel. 2016; 181:985-95. (ISI Q1)

H.K. Imdadul, H.H. Masjuki, M.A. Kalam, N.W.M. Zulkifli, Alabdulkarem, Abdullah, M.M. Rashed, Y.H. Teoh, H.G. How. Higher alcohol–biodiesel–diesel blends: An approach for improving the performance, emission, and combustion of a light-duty diesel engine. Energy Conversion and Management. 2016;111:174-85. (ISI Q1)

2015 M.A. Wakil, H.H. Masjuki, M.A. Kalam, Y.H. Teoh, H.G. How, S. Imtenan. Influence of engine operating variable on combustion to reduce exhaust emissions using various biodiesels blend. RSC Advances. 2015;5(122):100674-81. (ISI Q1)

H.K. Rashedul, H.H. Masjuki, M.A. Kalam, Y.H. Teoh, H.G. How, I.M. Rizwanul Fattah. 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. 2015;106:849-58. (ISI Q1)

Y.H. Teoh, H.H. Masjuki, M.A. Kalam, H.G. How. Comparative assessment of performance, emissions and combustion characteristics of gasoline/diesel and gasoline/biodiesel in a dual-fuel engine. RSC Advances. 2015;5(88):71608-19. (ISI Q1)

Y.H. Teoh, H.H. Masjuki, M.A. Kalam, H.G. How. Effect of injection timing and EGR on engine-out-responses of a common-rail diesel engine fueled with neat biodiesel. RSC Advances. 2015;5(116):96080-96. (ISI Q1)

Y.H. Teoh, H.H. Masjuki, I.M. Noor, B.Si. Ali, M.A. Kalam, H.G. How. Evaluation of a novel biofuel from unwanted waste and its impact on engine performance, emissions, and combustion characteristics in a diesel engine. RSC Advances. 2015;5(53):42438-47. (ISI Q1)

2014 Y.H. Teoh, H.H. Masjuki, M.A. Kalam, M.A. Amalina, H.G. How. Effects of Jatropha biodiesel on the performance, emissions, and combustion of a converted common-rail diesel engine. RSC Advances. 2014;4(92):50739-51. (ISI Q1)

H.G. How, H.H. Masjuki, M.A. Kalam, Y.H. Teoh. An investigation of the engine performance, emissions and combustion characteristics of coconut biodiesel in a high-pressure common-rail diesel engine. Energy. 2014;69:749-59. (ISI Q1)

Y.H. Teoh, H.H. Masjuki, M.A. Kalam, M.A. Amalina, H.G. How. Effect of Premixed Diesel Fuel on Partial HCCI Combustion Characteristics. Applied Mechanics & Materials, 2014: 663, 26-33. (Conference Proceeding)

H.G. How, H.H. Masjuki, M.A. Kalam, Y.H. Teoh. Effect of Ethanol-Coconut Oil Methyl Ester on the Performance, Emission and Combustion Characteristics of a High-Pressure Common-Rail DI Engine. Applied Mechanics & Materials, 2014: 663, 19-25. (Conference Proceeding)

Title: Investigation of compositional instability and engine performance characteristics for non-edible biodiesel fuel
Duration: 12 months (2018)
Sponsors/Grant: UOW Malaysia KDU Penang University College Research Grant
Amount: RM 10,000

Title: Modelling of the effect of surface roughness in plastic strain gradient theory of indentation size effect for micro-indentation
Duration: 24 months (2018 – 2019)
Sponsors/Grant: Fundamental Research Grant Scheme (FRGS)
Amount: RM 61,000

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
Amount: RM 16,500

Title: Design and development of high-speed rotor for air-cooled eddy current dynamometer
Duration: 12 months (2020)
Sponsors/Grant: Public-Private Research Network (PPRN) grant
Amount: RM 100,000

Title: Mechanism study of the tribological effect of nanoparticles as lubricating oil additives for biodiesel engine
Duration: 24 months (2019 – 2021)
Sponsors/Grant: Fundamental Research Grant Scheme (FRGS)
Amount: RM 107,200

2018
UOW Malaysia KDU Penang Best Paper Award (Science Category)
UOW Malaysia KDU Penang Most Published in SCOPUS Award