Journal of Solar Energy Engineering, Transactions of the ASME

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
Implementation of a Mixing Length Turbulence Formulation Into the Dynamic Wake Meandering Model
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 134 Số 2 - 2012
Rolf‐Erik Keck, Dick Veldkamp, Helge Aagaard Madsen, Gunner Chr. Larsen
The work presented in this paper focuses on improving the description of wake evolution due to turbulent mixing in the dynamic wake meandering (DWM) model. From wake investigations performed with high-fidelity actuator line simulations carried out in ELLIPSYS3D, it is seen that the current DWM description, where the eddy viscosity is assumed to be constant in each cross-section of the wake...... hiện toàn bộ
Moment-Based Load and Response Models With Wind Engineering Applications
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 122 Số 3 - Trang 122-128 - 2000
Steven R. Winterstein, Tina Kashef
A general method is shown here to model wind loads and responses for reliability applications. This method characterizes the short-term loads and responses by a few summary statistics: specifically, by a limited number of statistical moments. A suite of moment-based models are derived and applied here, illustrating how this statistical moment information can best be utilized. Two examples ...... hiện toàn bộ
Modeling, Simulation, and Performance Evaluation Analysis of a Parabolic Trough Solar Collector Power Plant Coupled to an Organic Rankine Cycle Engine in North Eastern Greece Using trnsys
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 141 Số 6 - 2019
Pantelis N. Botsaris, Alexandros Pechtelidis, Konstantinos A. Lymperopoulos
Abstract The present work is focused on the development of a simulation model for an existing cogeneration power plant, which utilizes a solar thermal field with parabolic trough solar collectors coupled to an Organic Rankine Cycle engine. The power plant is modeled in the trnsys v.17 software package and its performance has been validated with real ...... hiện toàn bộ
Convective Heat Transfer Coefficients in a Building-Integrated Photovoltaic/Thermal System
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 133 Số 2 - 2011
Luis M. Candanedo, Andreas Athienitis, Kwangwook Park
This paper presents an experimental study for the development of convective heat transfer correlations for an open loop air-based building-integrated photovoltaic/thermal (BIPV/T) system. The BIPV/T system absorbs solar energy on the top surface, which includes the photovoltaic panels and generates electricity while also heating air drawn by a variable speed fan through a channel formed by...... hiện toàn bộ
Flow Control and Unsteady-State Analysis on Thermal Performance of Solar Air Collectors
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 128 Số 3 - Trang 354-359 - 2006
Sadasuke Ito, Minoru Kashima, Naokatsu Miura
Promotion of the use of renewable energy, such as solar heat, for space heating and drying crops and wood is desired to prevent global warming. High-temperature collection of heat by air collectors producing as much as 50°C in winter for space heating and about 80°C in summer for exchanging heat to circulating water for hot water supply would be appropriate applications. In this study, fir...... hiện toàn bộ
Numerical Implications of Solidity and Blade Number on Rotor Performance of Horizontal-Axis Wind Turbines
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 125 Số 4 - Trang 425-432 - 2003
Matthew Duquette, Kenneth D. Visser
A numerical study was conducted to examine the impact of rotor solidity and blade number on the aerodynamic performance of small wind turbines. Blade element momentum theory and lifting line based wake theory were utilized to parametrically assess the effects of blade number and solidity on rotor performance. Increasing the solidity beyond what is traditionally used for electric generating...... hiện toàn bộ
The Effect of a Thermotropic Material on the Optical Efficiency and Stagnation Temperature of a Polymer Flat Plate Solar Collector
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 137 Số 2 - 2015
Adam C. Gladen, Jane H. Davidson, Susan C. Mantell
Solar hot water and space heating systems constructed of commodity polymers have the potential to reduce the initial cost of solar thermal systems. However, a polymer absorber must be prevented from exceeding its maximum service temperature during stagnation. Here, the addition of a thermotropic material to the surface of the absorber is considered. The thermotropic layer provides passive ...... hiện toàn bộ
Radiative Heat Transfer Analysis in Plasmonic Nanofluids for Direct Solar Thermal Absorption
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 134 Số 2 - 2012
Bong Jae Lee, Keunhan Park, Timothy M. Walsh, Lina Xu
The present study reports a novel concept of a direct solar thermal collector that harnesses the localized surface plasmon of metallic nanoparticles suspended in water. At the plasmon resonance frequency, the absorption and scattering from the nanoparticle can be greatly enhanced via the coupling of the incident radiation with the collective motion of electrons in metal. However, the surfa...... hiện toàn bộ
Predicted Efficiency of a Low-Temperature Nanofluid-Based Direct Absorption Solar Collector
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 131 Số 4 - 2009
Himanshu Tyagi, Patrick E. Phelan, Ravi Prasher
Due to its renewable and nonpolluting nature, solar energy is often used in applications such as electricity generation, thermal heating, and chemical processing. The most cost-effective solar heaters are of the “flat-plate” type, but these suffer from relatively low efficiency and outlet temperatures. The present study theoretically investigates the feasibility of using a nonconcentrating...... hiện toàn bộ
Improvement of the Performance of Solar Energy or Waste Heat Utilization Systems by Using Phase-Change Slurry as an Enhanced Heat-Transfer Storage Fluid
Journal of Solar Energy Engineering, Transactions of the ASME - Tập 107 Số 3 - Trang 229-236 - 1985
K.E. Kasza, M. M. Chen
This paper is concerned with the benefits of using phase-change slurries as enhanced heat-transfer/storage working fluids in solar energy and waste heat utilization systems. Literature is cited to show that a slurry containing a phase-change material as the dispersed phase promises to have much higher heat-transfer coefficients than conventional single-phase working fluids. Because of the ...... hiện toàn bộ
Tổng số: 35   
  • 1
  • 2
  • 3
  • 4