Showing 1 - 10 of 172
(PETRA) was employed as a crosslinking agent. The (microencapsulted phase change materials) MicroPCMs were characterized …
Persistent link: https://www.econbiz.de/10011053115
Based on the model of Gibbs–Di Marzio we write the logarithmic shift factor without explicit knowledge of the form for the entropy, an expression which enables us to write a generalization of the Williams–Landel–Ferry equation. Comparison with the empirical relation of...
Persistent link: https://www.econbiz.de/10011062812
Nowadays installed power capacity of grid-connected photovoltaic (GCPV) systems has an exponential increase around the world. Since these systems are more expensive than other conventional electricity resources, optimal economic designing is much necessary. In this paper, a new intelligent-based...
Persistent link: https://www.econbiz.de/10010930868
The pressure field on the upper and lower surfaces of a photovoltaic (PV) module comprised of 24 individual PV panels was studied experimentally in a wind tunnel for four different wind directions. The results show that the pressure distribution on the module surface is symmetric about its...
Persistent link: https://www.econbiz.de/10011208724
This paper presents a development and implementation of a PC-based maximum power point tracker (MPPT) for PV system using neural networks (NN). The system consists of a PV module via a MPPT supplying a dc motor that drives an air fan. The control algorithm is developed to use the artificial NN...
Persistent link: https://www.econbiz.de/10010807049
The theoretical performance of a photovoltaic (PV) module is typically evaluated by using models based on equivalent circuits whose parameters are derived from data listed in manufacture's datasheet. Few manufactures provide detailed enough datasheets to allow using highly accurate models. In...
Persistent link: https://www.econbiz.de/10010810902
For dissemination and promotion of photovoltaic power generation systems, it is important to reduce power generation cost because the cost is very expensive compared with conventional power generation methods. The cost of building materials integrated PV modules can be at least partially...
Persistent link: https://www.econbiz.de/10010804349
This paper presents an application of the neural networks for identification of the maximum power (MP) and the normal operating power (NOP) of a photovoltaic (PV) module. Two neural networks are developed; the first is the maximum power neural network (MPNN) and the second is the normal operating...
Persistent link: https://www.econbiz.de/10010805065
The simulation of module temperature from Nominal Operation Cell Temperature (NOCT) is widely used to easily estimate module performance along the year. In this context, it is important to determine this parameter in a reliable way, as it is used to compare the performance of different module...
Persistent link: https://www.econbiz.de/10011043801
The influence of temperature and wavelength on electrical parameters of crystalline silicon solar cell and a solar module are presented. At the experimental stand a thick copper plate protected the solar cell from overheating, the plate working as a radiation heat sink, or also as the cell...
Persistent link: https://www.econbiz.de/10011044202