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This paper presents the performance analysis of a co-generation energy system using a tubular Solid Oxide Fuel Cell (TSOFC). In our experiment, a single tubular SOFC was investigated which has the power density of 35∼40W/cm2 and operating temperature between 600–800°C. The cathode and anode are made from Nickel (Ni) and Lanthanum Strontium Manganite (LSM) respectively. The electrolyte is made of Yttria-Stabilized...
Nowadays, many countries are working toward increasing the adoption of renewable energy (RE), even though fiscal support incentives to reduce the capital cost of RE. Solar photovoltaic applications in Malaysia are not popular despite the government having declared the feed-in-tariff (FIT) as one type of support. Hence, there is a need to investigate the social acceptance of people in Malaysia to improve...
Along with the enhancement of technology and alarming of global warming, various types of technologies are advanced worldwide nowadays to harness the energy from the sun such as solar thermal energy, ocean thermal energy conversion, solar ponds, solar tower and photovoltaic systems to utilize the energy in the majority of domestic applications and industrial sector to a certain extent. Subsequently,...
Energy efficiency improvement as well as energy savings is the major concern in most of the development countries all over the world. In this study, the useful concept of energy and exergy utilization is analyzed to investigate the energy and exergy efficiency, energy and exergy losses and energy savings of boilers. The energy and exergy efficiencies of a combustion chamber and stream production chamber...
This paper emphasized on the possibilities of researches in the field of exergy analysis in various usable sectors where vapor compression refrigeration systems are used. Exergy losses, exergy efficiency, second law efficiency and irreversibility of the system components as well as of the whole system are measured. In the vapor compression system, R134a, R290 and R600a are considered as refrigerants...
A numerical model is presented for the simulation of double-diffusive natural convection in a triangular solar collector. This design is encountered in greenhouse solar stills where vertical temperature and concentration gradients between the saline water and transparent cover induce flows in a confined space. This phenomenon plays an important function in the water distillation process and in the...
Solar energy is regarded a clean renewable energy source, with great potential for environment-friendly electricity generation. Properly harvested, it can optimally benefit. Malaysia has a particularly abundant source of renewable energies; for solar, as evidenced by a 4.21kWh/m2 to 5.56kWh/m2 average daily radiation with a high of 6.8kWh/m2 (purportedly in August and November). Present installed...
Countries all over the world is enquiring and taking efforts to implement the environment friendly renewable energy to mitigate the negative impacts of fossil fuels on the environment and their fast depletion. To reduce the reliance on fossil fuels and environmental degradation, many countries have focused and formulated solar energy related policies to increase its share into energy mix. In this...
Heat exchanger is the almost common equipment for the industrial process heating. Heat is transferred from one fluid to other fluids by convection and conduction through the wall of the heat exchanger. Effectiveness of heat exchanger depends on the convection heat transfer coefficient of the fluid. Convective heat transfer coefficient of water, Cu-water, Al-water, Al2O3-water and TiO2-water of 2%...
This study analyzed and estimated economic viability of introducing high efficiency motors compared to the rewind and standard motor in the industrial sector. Efficiency of a motor is degraded when it is rewound. This analysis identified that it is better to rewind a larger motor compared to a smaller motor. It has been found that a high efficiency motor can save an average 5.5% of energy compared...
Energy is one of the indispensable factors for continuous development and economic growth. The industrial sectors consume a significant amount of energy in Malaysia. This paper is investigated and analyzed the energy use in industrial boilers fan motor, energy savings and emission reduction in Malaysia by using energy audit data. Energy savings using VSD by modulating fan speed has been estimated...
This paper presents experimental results carried out to evaluate the brake power, specific fuel consumption (SFC) and exhaust gas emissions when running on an unmodified diesel engine with fuel additive blended biodiesel. The multi-functional fuel additive was added (in mass basis) with B20 (20% biodiesel and 80% ordinary diesel fuel) in a special manner to increase engine brake power. For comparisons...
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