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Rising trend towards urbanization has resulted in the emergence of urban buildings as major energy consumers. This has increased the burden on the grid which may eventually result into severely interrupted power supply and outages. In order to assist the over-burdened grid, a modified concept of zero energy buildings (ZEBs), which consist of individual generation systems, has been developed. In order...
Sugar drivened from aquatic plants with high cellulose and hemicellulose content is one of the dynamic development that assists to maintain the advancement in bioproducts. Therefore, this study explored the potentiality of improvement on the saccharification efficiency of sugar from water hyacinth (Eichhornia crassipes) caused by microwave heating system. Pre-treatment is the most essential process...
Electricity demand is rising rapidly due to the expansion of economy. This results in an increase of demand for electricity generation such as power plant fossil, hydro and nuclear. Every form of electricity generation has its strength and weakness. For example, fossil fuel power plants burn a significant amount of coal, oil or gas to produce electricity and produce large amount of greenhouse gas...
The study is aimed to determine the potential of electrical energy from the mitigation of greenhouse gas emissions, mainly methane (CH4) and carbon dioxide (CO2) based on the composition of municipal waste generated in Bontang City of East Borneo. The research was conducted by calculating the emissions of methane (CH4) and carbon dioxide (CO2) using Intergovernmental Panel on Climate change (IPCC)...
Renewable energy plays a critical role in Smart Grid. As the penetration of renewable energy increases, the management of operations becomes a critical issue. One of the most important task is interoperability among different models and vendors when the system is needed to be centrally controlled. Standardization is the world's trend to solve interoperability problems. This study focuses on standardizing...
Flood risk and supply chain resilience have emerged as a key management concern, due to global sourcing and globalization of supply chain. This study aims to develop a framework to identify important factors for the establishment of flood-resilient supply chain. The framework is formulated based on the concept of resilience triangle and the distinctive characteristics of flood disaster. The relevant...
The performance of Cu2ZnSnS4(CZTS) solar cell was investigated using a simulator called Solar Cell Capacitance Simulator(SCAPS). An n doped Zinc Oxide(n-ZnO)/Indium Sulfide(In2S3)/CZTS structure was used in the simulation. These materials are cheap and non-toxic which is an important factor keeping the idea of mass production in mind. The performance was recorded for different thicknesses of CZTS...
A quantum-inspired approximate dynamic programming algorithm (QI-ADP) is proposed for solving unit commitment problems considering wind power (WUC). The quantum computing theory is applied to tackle some new issues rising from ADP. In details, the unit states in a WUC problem are expressed by the quantum superposition. Then, the collapsing principle of quantum measurement is applied to solve the Bellman...
Clean conversion technologies of coal to hydrogen and its storage are proposed, compared and evaluated in this study. Chemical looping is selected as the main conversion technology to convert the fuel to both carbon dioxide and hydrogen. In addition, integrated system for hydrogen production from coal employing two different chemical looping methods were modeled and compared. The first system integrates...
Currently, the production and the number of installations of photovoltaic (PV) modules has been increasing rapidly. Accordingly, the number of failures has also increased. Many failures are a result of the Hot-Spot phenomenon in which defective cell becomes hot when shadow occurs on the cell. Previously, the authors performed operating analysis of the PV module with Hot-Spot so that we construct a...
The economic growth and the pattern of lifestyles of nations associated with it generally determine the anthropogenic effects of human activities on the environment. This in turn affects the environmental quality. The more prosperous a country's economy is, higher is its fossil fuel consumption, resulting in higher GHG emissions. They together determine the level of production and its degree of carbon...
The demand side management (DSM) comprises techniques and policies which aim at equalizing energy consumption levels over the day. As opposed to the supply side management involving the addition of new generation units and total installed capacity, the idea here is not only to increase the energy to be supplied, but also to control the shape of consumption by applying energy management techniques...
Probabilistic power flow (PPF) approach based on unscented transformation (UT) method, which is particular for a variety of interdependent uncertainty sources associated with AC/DC hybrid grid, is presented herein. The applied traditional UT method is inherent with capability to tackle correlated random variables, however, the accuracy is poor in case of asymmetric distributions. In order to address...
The concept of smart cities has gained relevance over the years. City leaders plan investments with the aim of evolving the city towards a smart city. Several models and frameworks, of which maturity models, provide directions or support such investment decisions. Nevertheless, it is not always clear whether the maturity models developed so far are able to fulfil their proposed objectives. This paper...
System stability plays a critical role in electric power systems. With the development of power system, the scale of the electric grids are now increasing widening, and many renewable energy resources are integrated in the grid. Therefore, at the same time, the stability and safety issues of electric power system are more concerned. Frequency and phasor are two important parameters in stability of...
Parameter estimation in wireless sensor networks (WSN) using encrypted non-binary quantized data is studied. In a WSN, sensors transmit their observations to a fusion center through a wireless medium where the observations are susceptible to unauthorized eavesdropping. Encryption approaches for WSNs with fixed threshold binary quantization were previously explored. However, fixed threshold binary...
UAV aerial has been used more and more widely in transmission line inspection. However, the automatic recognition of the visible image still can't meet the actual requirements, fault diagnosis is still largely done by hand, and infrared images contain fewer environmental factors in comparison and can basically reflect a variety of insulator faults, so it is more practical than visible image in the...
The installation of onshore wind farms in Taiwan was finished and under operation for over a decade, yet the construction of onshore wind farms were near a saturation point. Comparing with the onshore wind farms, the rich offshore wind resource of Taiwan is still undeveloped. For the future development of offshore wind farms in western Taiwan and reliable offshore wind resource information, this study...
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