| Performance of a solar chimney KS Ong, CC Chow Solar energy 74 (1), 1-17, 2003 | 390 | 2003 |
| Thermal performance of solar air heaters: mathematical model and solution procedure KS Ong Solar energy 55 (2), 93-109, 1995 | 349 | 1995 |
| A mathematical model of a solar chimney KS Ong Renewable energy 28 (7), 1047-1060, 2003 | 313 | 2003 |
| A finite-difference method to evaluate the thermal performance of a solar water heater KS Ong Solar Energy 16 (3-4), 137-147, 1974 | 218 | 1974 |
| Review of solar water heaters incorporating solid-liquid organic phase change materials as thermal storage SY Kee, Y Munusamy, KS Ong Applied Thermal Engineering 131, 455-471, 2018 | 162 | 2018 |
| An improved computer program for the thermal performance of a solar water heater KS Ong Solar Energy 18 (3), 183-191, 1976 | 151 | 1976 |
| Performance of a R-134a-filled thermosyphon KS Ong, M Haider-E-Alahi Applied thermal engineering 23 (18), 2373-2381, 2003 | 123 | 2003 |
| Performance of a R-134a-filled thermosyphon KS Ong, M Haider-E-Alahi Applied thermal engineering 23 (18), 2373-2381, 2003 | 123 | 2003 |
| Theoretical model of an evacuated tube heat pipe solar collector integrated with phase change material MS Naghavi, KS Ong, IA Badruddin, M Mehrali, M Silakhori, ... Energy 91, 911-924, 2015 | 110 | 2015 |
| A state-of-the-art review on hybrid heat pipe latent heat storage systems MS Naghavi, KS Ong, M Mehrali, IA Badruddin, HSC Metselaar Energy Conversion and Management 105, 1178-1204, 2015 | 103 | 2015 |
| Effects of nanofluids on heat transfer characteristics of a two-phase closed thermosyphon A Kamyar, KS Ong, R Saidur International Journal of Heat and Mass Transfer 65, 610-618, 2013 | 103 | 2013 |
| Temperature reduction in attic and ceiling via insulation of several passive roof designs KS Ong Energy Conversion and Management 52 (6), 2405-2411, 2011 | 86 | 2011 |
| Thermal performance of solar air heaters—Experimental correlation KS Ong Solar Energy 55 (3), 209-220, 1995 | 84 | 1995 |
| Thermal performance of a compact design heat pipe solar collector with latent heat storage in charging/discharging modes MS Naghavi, KS Ong, IA Badruddin, M Mehrali, HSC Metselaar Energy 127, 101-115, 2017 | 74 | 2017 |
| Heat spreading and heat transfer coefficient with fin heat sink KS Ong, CF Tan, KC Lai, KH Tan Applied Thermal Engineering 112, 1638-1647, 2017 | 66 | 2017 |
| Solar dryers in the Asia-Pacific region KS Ong Renewable Energy 16 (1-4), 779-784, 1999 | 54 | 1999 |
| Thermal and electrical performance of a hybrid design of a solar-thermoelectric system KS Ong, MS Naghavi, C Lim Energy conversion and management 133, 31-40, 2017 | 50 | 2017 |
| An integrated OEE framework for structured productivity improvement in a semiconductor manufacturing facility CK Cheah, J Prakash, KS Ong International Journal of Productivity and Performance Management 69 (5 …, 2020 | 49 | 2020 |
| Thermal resistance of a thermosyphon filled with R410A operating at low evaporator temperature KS Ong, G Goh, KH Tshai, WM Chin Applied Thermal Engineering 106, 1345-1351, 2016 | 42 | 2016 |
| Experimental investigation on the hysteresis effect in vertical two-phase closed thermosyphons KS Ong, M Haider-E-Alalhi Applied Thermal Engineering 19 (4), 399-408, 1999 | 41 | 1999 |
