List of papers for 2014:
- Optimization of a Rectangular Microchannel Heat Sink Using Entropy Generation Minimization (EGM) and Genetic Algorithm (GA), Ahmed Mohammad Adham, Normah Mohd-Ghazali, Robiah Ahmad, Arabian Journal for Science and Engineering, Springer, 10.1007/s13369-014-1253-x, Print ISSN 1319-8025, Online ISSN 2191-4281, Vol 39 (10) 2014, pp 7211-7222. http://connection.ebscohost.com/c/articles/97875241/optimization-rectangular-microchannel-heat-sink-using-entropy-generation-minimization-egm-genetic-algorithm-ga
- Optimization of nanofluid-cooled microchannel heat sink, Ahmed Mohammed Adham, Normah Mohd-Ghazali, and Robiah Ahmad, Thermal Science, 2014, DOI:10.2298/TSCI130517163A. http://thermalscience.vinca.rs/online-first/1175
ABSTRACT
The optimization of a nanofluid-cooled rectangular microchannel heat sink is reported. Two nanofluids with volume fraction of 1 %, 3 %, 5 %, 7 % and 9 % are employed to enhance the overall performance of the system. An optimization scheme is applied consisting of a systematic thermal resistance model as an analysis method and the elitist non-dominated sorting genetic algorithm (NSGA-II). The optimized results showed that the increase in the particles volume fraction results in a decrease in the total thermal resistance and an increase in the pumping power. For volume fractions of 1 %, 3 %, 5 %, 7 % and 9 %, the thermal resistances were 0.072, 0.07151, 0.07075, 0.07024 and 0.070 [oK W-1] for the SiC-H2O while, they were 0.0705, 0.0697, 0.0694, 0.0692 and 0.069 [oK W-1] for the TiO2-H2O. The associated pumping power were 0.633, 0.638, 0.704, 0.757 and 0.807 [W] for the SiC-H2O while they were 0.645, 0.675, 0.724, 0.755 and 0.798 [W] for the TiO2-H2O. In addition, for the same operating conditions, the nanofluid-cooled system outperformed the water-cooled system in terms of the total thermal resistance (0.069 and 0.11 for nanofluid-cooled and water-cooled systems, respectively). Based on the results observed in this study, nanofluids should be considered as the future coolant for electronic devices cooling systems.
KEYWORDS: microchannel, nanofluid, optimization, NSGA-II
- Neural Network Modeling and Identification of Naturally Ventilated Tropical Greenhouse Climates. Robiah Ahmad. md. Norazlan Md. Lazin. Saiful Farhan Mohd Samsuri. WSEAS TRANSACTIONS on SYSTEMS and CONTROL. Vol. 9, 2014. pp 445-453. http://wseas.org/cms.action?id=7651
ABSTRACT
- Modeling Automotive Palm Oil Biodiesel Engine using Multi-Objective Optimization Differential Evolution Algorithm. Robiah Ahmad. Mohd. Zakimi Zakaria. Azuwir Mohd. Nor. Hishamuddin Jamaluddin. WSEAS TRANSACTIONS on SYSTEMS and CONTROL. Vol. 9, 2014. pp 500-513. http://wseas.org/cms.action?id=7651
ABSTRACT
- Optimization of nanofluid-cooled microchannel heat sink, Ahmed Mohammed Adham, Normah Mohd-Ghazali, and Robiah Ahmad, Thermal Science, 2014, DOI:10.2298/TSCI130517163A. http://thermalscience.vinca.rs/online-first/1175
ABSTRACT