Journal of Solar Energy Engineering: Recent submissions
Now showing items 921-940 of 3077
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Sun Tracker Performance Analysis for Different Solar Module Technologies in an Alpine Environment
(The American Society of Mechanical Engineers (ASME), 2014)The objective of this study is to compare the performance of different solar module technologies mounted on a fixedtilt rack (30 deg) as well as on a single and a dual axis tracker. The data of this study were taken from ... -
Transient Three Dimensional Heat Transfer Model of a Solar Thermochemical Reactor for H2O and CO2 Splitting Via Nonstoichiometric Ceria Redox Cycling
(The American Society of Mechanical Engineers (ASME), 2014)A transient threedimensional heat transfer model is developed for a 3 kWth solar thermochemical reactor for H2O and CO2 splitting via twostep nonstoichiometric ceria cycling. The reactor consists of a windowed solar receiver ... -
Design Considerations of Unglazed Transpired Collectors: Energetic and Exergetic Studies
(The American Society of Mechanical Engineers (ASME), 2014)Unglazed transpired collector (UTC) is a kind of solar air heater is used for different applications such as air ventilation, preheating, and crop drying. Passing air through the perforated plate, which acts as an absorber, ... -
Optimal Control of a Wind Turbine With a Variable Ratio Gearbox for Maximum Energy Capture and Prolonged Gear Life
(The American Society of Mechanical Engineers (ASME), 2014)An optimal control approach for a wind turbine drivetrain with a variable ratio gearbox is presented. The objective is to find the optimum shifting sequence of the variable ratio gearbox in order to maximize power generation ... -
A Study of Back Electrode Stacked With Low Cost Reflective Layers For High Efficiency Thin Film Silicon Solar Cell
(The American Society of Mechanical Engineers (ASME), 2014)In this study, commercially available white paint is used as a pigmented dielectric reflector (PDR) in the fabrication of a lowcost back electrode stack with an Aldoped ZnO (AZO) layer for thinfilm silicon solar cell ... -
Modeling and Technical Economic Optimization of Electricity Supply Network by Three Photovoltaic Systems
(The American Society of Mechanical Engineers (ASME), 2014)To attain an ongoing electricity economy, developing novel widespread electricity supply systems based on diverse energy resources are critically important. Several photovoltaic (PV) technologies exist, which cause various ... -
Guidelines for Volume Force Distributions Within Actuator Line Modeling of Wind Turbines on Large Eddy Simulation Type Grids
(The American Society of Mechanical Engineers (ASME), 2014)The objective of this work is to develop and test a set of general guidelines for choosing parameters to be used in the stateoftheart actuator line method (ALM) for modeling wind turbine blades in computational fluid ... -
Energy and Exergy Study of Effective Parameters on Performance of Photovoltaic/Thermal Natural Air Collectors
(The American Society of Mechanical Engineers (ASME), 2014)Photovoltaic/thermal (PV/T) system is a kind of solar system that converts solar energy to electrical and thermal energy simultaneously. In this paper, the effect of some parameters, such as packing factor, fin number, and ... -
Estimation of Global Solar Radiation Using Artificial Neural Networks in Abu Dhabi City, United Arab Emirates
(The American Society of Mechanical Engineers (ASME), 2014)The geographical location (Latitude: 24 deg 28′ N and Longitude: 54 deg 22′ E) of Abu Dhabi city in the United Arab Emirates (UAE) favors the development and utilization of solar energy. This paper presents an artificial ... -
Technical and Economic Feasibility Analysis of Using Concentrated Solar Thermal Technology in the Cement Production Process: Hybrid Approach—A Case Study
(The American Society of Mechanical Engineers (ASME), 2014)This work describes the evaluation of concentrated solar thermal (CST) in a conventional cement plant in order to replace from 40% to 100% of the thermal energy required in the process. By using CST at the calcination ... -
Numerical Simulation of Heat Pipe Assisted Latent Heat Thermal Energy Storage Unit for Dish Stirling Systems
(The American Society of Mechanical Engineers (ASME), 2014)A twodimensional numerical model is developed to simulate the transient response of a heat pipeassisted latent heat thermal energy storage (LHTES) unit integrated with dishStirling solar power generation systems. The unit ... -
Fracture Analysis and Distribution of Surface Cracks in Multicrystalline Silicon Wafers
(The American Society of Mechanical Engineers (ASME), 2014)Solar silicon wafers are mainly produced through multiwire sawing. The sawing process induces micro cracks on the wafer surface, which are responsible for brittle fracture. Hence, it is important to scrutinize the crack ... -
A Multi Objective Optimization Approach to Active Power Control of Wind Farm
(The American Society of Mechanical Engineers (ASME), 2014)With more and more wind farms integrated into the power grid, the stability and security of the grid can be significantly affected by the windfarmgenerated power, due to the intermittent and volatile nature of the ... -
Effect of Crystallinity on the Performance of P3HT/PC70BM/n Dodecylthiol Polymer Solar Cells
(The American Society of Mechanical Engineers (ASME), 2014)In this research, ndodecylthiol was added to P3HT/PC70BM polymer solar cells (PSCs) to improve the crystallinity of P3HT and enhance the phase separation of P3HT/PC70BM. Crystallinity of P3HT:PC70BM doped with 0–5% by ... -
Experimental Study With Analytical Validation of Thermally Driven Flow in Risers of Solar Water Heaters Under Varying Scale Thickness and Heat Flux
(The American Society of Mechanical Engineers (ASME), 2014)This paper investigates the deterioration in the performance of thermosiphon flat plate solar water heaters (SWH) with water side scaling. The study presents the analytical and experimental variation of mass flow rate of ... -
Shape Optimized Heliostats Using a Tailored Stiffness Approach
(The American Society of Mechanical Engineers (ASME), 2014)In central receiver systems, the ideal reflective shape of a heliostat is a section of a paraboloid that adapting with the sun's angle and the mirror's location in the field. Deviation from this shape leads to optical ... -
Design Point for Predicting Year Round Performance of Solar Parabolic Trough Concentrator Systems
(The American Society of Mechanical Engineers (ASME), 2014)Thermal efficiencies of the solar field of two different parabolic trough concentrator (PTC) systems are evaluated for a variety of operating conditions and geographical locations, using a detailed 3D heat transfer model. ... -
A Single Stage Photovoltaic Inverter With Common Power Factor Control and Maximum Power Point Tracking Circuit
(The American Society of Mechanical Engineers (ASME), 2014)This paper presents a unique approach towards the reduction of steps employed in conversion of power produced by a photovoltaic energy system. When a Photovoltaic system feeds an ac load, the power conditioning system of ... -
Performance of Rigid Porous Stratification Manifolds With Interpretation for Off Design Operation
(The American Society of Mechanical Engineers (ASME), 2014)Thermal stratification of solar water storage tanks improves collector efficiency and provides higher quality energy to the user. A crucial aspect of maintaining stratification is preventing mixing in the tank, particularly ... -
Finite Element Modeling, Analysis, and Life Prediction of Photovoltaic Modules
(The American Society of Mechanical Engineers (ASME), 2014)A Photovoltaic (PV) module consists of layers of different materials constrained together through an encapsulant polymer. During its lamination and operation, it experiences mechanical and thermal loads due to seasonal and ...