Showing papers by "Wan Ramli Wan Daud published in 2006"
TL;DR: The importance of fuel cell as the future power system is discussed in the light of future fossil fuel depletion, impending international law on green house gases control and the national renewable energy policy as mentioned in this paper.
317 citations
TL;DR: In this article, the authors developed the economic models and their characterization trends for the common unit processes and utilities in the PEMFC system, and determined that the specific cost of a PEM fuel cell stack is about US$ 500 per kW, while the specific manufacturing and capital investment costs are in the range of US$ 1200 per kW and US$ 2900 per kW.
81 citations
TL;DR: In this paper, the authors have developed four solar assisted drying systems namely (a) the V-groove solar collector, (b) the double-pass solar collector with integrated storage system, (c) the solar assisted dehumidification system for medicinal herbs and (d) the photovoltaic thermal (PVT) collector system.
72 citations
TL;DR: In this article, the authors developed the synthesis and optimization of reactor-separation network (RSN) models that can be simultaneously solved within Non-Linear Programming (NLP) for a PEM fuel cell system.
11 citations
TL;DR: In this paper, the effect of trans-membrane pressure drop and concentration polarization along the tube has been investigated and it was found that the pressure drop along the membrane tubes does not generally affect the NTU and hence the area of the membrane required for the separation.
3 citations
01 Jul 2006
TL;DR: In this paper, the properties of catalysts containing Ni or combinations of Pd, Cu and Zn on gamma alumina support have been developed for testing in autothermal methanol reforming reaction.
Abstract: Catalysts containing Ni or combinations of Pd, Cu and Zn on gamma alumina support have been developed for testing in autothermal methanol reforming reaction. The hydrogen produced by the catalytic reforming of methanol is targeted to be used as a feed for fuel cell. The reaction for reforming of methanol can be performed at low temperature and pressure in the presence of catalysts with high yield and low CO. The calcined catalysts has been characterized by Brunauer, Emmett and Teller (BET) for surface area, Scanning Electron Microscopy (SEM) for shape and dispersion of metals, Powder X-ray diffraction (XRD) for species present and degree of crystallinity and Temperature Programmed Reduction (TPR) for reducible species presence, their interaction and degree of reducibility. The catalyst has specific characteristic in physical and chemical properties due to the location of Ni metal on the surface of the ?-Al2O3. The effects could be observed in colour, SEM, and the total number of pores of the catalyst. The amount of metal in the supporting material ?-Al2O3 also influenced the physical properties of the catalysts. From the catalyst produced with various concentration, it is found that the content of Ni metal with specific amount, fill the channels on the surface of supporting material ?-Al2O3. Based on the catalyst activities data, suitable catalyst to produced hydrogen can be formulated.