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This paper was aimed to study the thin-layer drying of osmotic dehydration of Thai cherry tomato (Queen cherry tomato) and to investigate the thin-layer drying kinetics of osmotic dehydration of cherry tomato by using a convective air dryer. The osmotic dehydration of cherry tomato was dried under controlled conditions of temperature of 50°C, 60°C and 70°C and relative humidity (rh) of the drying...
Research on urban resilience is increasingly receiving attention by both policy makers and researchers. In the on-going debate, the focus is usually placed on economic and infrastructural aspects. Human factors, such as collective behavior change in the face of environmental threats or in the aftermath of extreme events, have up to present not been investigated extensively. In this research, we aim...
This paper primarily focuses on formulating an agent based model covering the financial and transactional aspects of deregulated Indian power markets which goes in hand with the legal system of the regulator. It proposes an information system which helps the agents of a power market to take decisions in making better bids and participate in the day ahead markets. A price forecasting engine based on...
In this work a typical meteorological year (TMY) data sets for 20 solar radiation monitoring stations in Thailand were generated by using the Sandia National Laboratory method. A 10-year period of hourly global solar radiation, air temperature, relative humidity and wind speed from these stations were used to generate the TMY data sets. To investigate their performance, the TMY data sets were employed...
This work elucidates the effects of pre-treatment of sewage sludge for enhancement of biogas production to generate green energy and reduction of carbon footprint in STPs. Microwave pre-treatment has been adopted for this study. Experiment works have been designed and conducted to examine the effectiveness on the disintegration of sewage sludge and biogas production of continuous and intermittent...
The aim of the paper is to draw attention to the humongous role the regulatory authorities have in spurring and steering the growth of low carbon buildings in a region. Despite the fact that built environments offer greatest low cost opportunities for carbon emission reductions and energy efficiency, it continues to be in a state of neglect due to several constraints. Embracing genuine sustainability...
Megacities in India are historically the major economic growth centers and Kolkata is the oldest and the most densely populated mega city. An assessment of sustainable development challenges and possible green growth strategies give rise to some interesting insights that are generalisable as well. Sustainable development priority assessment for Kolkata district brings forth the issues which go beyond...
A predictive models were developed to determine the thermal comfort level for the academic classroom by using artificial neural networks (ANNs). The paper reports experimental and theoretical analysis on a problem of achieving a desired thermal comfort level. The proposed method focused on the classical artificial (feed forward) neural networks (ANN) and the time-series NARX feedback neural networks...
This study develops the industry sector of Korea from the general aggregated form to a technologically detailed energy model within the framework of Integrated Assessment Model. The industrial sector is expanded to 12 subsectors (including cement), which utilizes seven types of energy services, that in turn consumes five forms of fuels: biomass, coal, electricity, gas, and refined liquids. The upgraded...
This paper presents the challenges that are associated with the integration of wind power into the power systems based on fossil-fuel generation. These challenges include indirect effects associated with international trade and the development of the generation mix in the neighbouring countries. LCOE, that is widely used due to simplicity and possibility to compare the unit costs of different technologies...
Cooling tower (CTW) is widely used in a variety of engineering application where there is a need to release the heat from a hot water flow into a cooler atmosphere. As a result, operation of any CTW depends not only its own configuration but also on climatic conditions under which it is employed. In this study, a laboratory-scale CTW with a maximum heat capacity of 89,000 kJ/hr was made to study effect...
Interest in both environmental sustainability and energy security has been growing. In this paper, we study the role of environmental sustainability in determining a country's energy security. From the literature, it is found that there are growing efforts by researchers to quantify energy security using energy security indexes. In some recent studies, a key dimension of these indexes is environmental...
This study analyzed policies and countermeasures to remove barriers hindering the improvement of energy efficiency in designated buildings under the framework of Thailand's Nationally Appropriate Mitigation Actions (NAMAs). The study was conducted by means of literature reviews and interviews with relevant Thai officials. It was found that while Thailand has addressed energy efficiency in the designated...
In the context of international climate policy design and negotiations, sectoral mitigation actions are discussed as options to scale up greenhouse gas mitigation and avoid dangerous climate change. One potential obstacle for crediting sectoral GHG mitigation actions is the need to agree on a credible ‘baseline scenario’ representing the business-as-usual case of sectoral emissions. This paper explores...
In terms of costs of owning and operation, the wind power differs from conventional thermal power plant as the most of these costs are known in advance. Wind power is considered as capital-intensive technologies. Operation and maintenance costs of wind power are relatively low, when compared to thermal power plants, and of course the input fuel (wind energy) is free, meaning that fluctuating fuel...
In this paper, a non-dominated sorting particle swarm optimization (NSPSO) is proposed for solving multi-objective economic dispatch considering wind power uncertainty. Two objectives including operation cost and system risk in terms of wind power penetration are considered. The Pareto fronts of optimal solutions are compared with non-dominated sorting genetic algorithm II (NSGA II). Simulation results...
In this paper, the Computational Fluid Dynamics (CFD) has been applied for burner design and development in order to simulate the flow and significant characteristics of producer gas combustion, such as when pollution is released. The producer gas's constituents were taken by GC analysis, whereas the amount of combustion air was determined from 1 mole, assuming a combustion equivalent ratio of 0.9...
A multi-purpose greenhouse solar dryer was used to dry in-shell macadamia nuts in order to investigate its performance. The dryer comprises a parabolic roof structure covered with polycarbonate sheets on a concrete floor. The dryer is 9 m in width, 12.4 m in length and 3.45 m in height. Six 15-W DC fans powered by two 50-W PV modules were used to ventilate the dryer. The dryer was installed at a macadamia...
Technology to abstract energy from the wind using Vertical Axis Wind Turbines (VAWTs) has rarely been adopted for large scale power production, owing to low power coefficient of the individual turbines, as compared to Horizontal Axis Wind Turbines (HAWTs). In the last few years, much research has been done to make VAWTs more economical and efficient to increase power generated per turbine. But besides...
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