Asymptotic Modeling of Flows in Micro-Channel by Using Macroscopic Balance Equations

2011 ◽  
Author(s):  
Renée Gatignol ◽  
Cédric Croizet
Keyword(s):  
Micro Channel ◽  
Balance Equations ◽  
Asymptotic Modeling

Effects of Ambipolar Diffusion on Prominence Thread Models

1994 ◽  
Vol 144 ◽  
pp. 315-321 ◽  
Author(s):  
M. G. Rovira ◽  
J. M. Fontenla ◽  
J.-C. Vial ◽  
P. Gouttebroze
Keyword(s):  
Energy Balance ◽  
Transition Region ◽  
Ambipolar Diffusion ◽  
Line Profiles ◽  
Balance Equations ◽  
Model Calculations ◽  
Partial Frequency ◽  
Frequency Redistribution ◽  
Partial Frequency Redistribution ◽  
Theoretical Structure

AbstractWe have improved previous model calculations of the prominence-corona transition region including the effect of the ambipolar diffusion in the statistical equilibrium and energy balance equations. We show its influence on the different parameters that characterize the resulting prominence theoretical structure. We take into account the effect of the partial frequency redistribution (PRD) in the line profiles and total intensities calculations.

Parametric Study of Photovoltaic Thermal Solar Collector Using An Improved Parallel Flow

2020 ◽  
Vol 2 (1) ◽  
pp. 19-24
Author(s):  
Sakhr Mohammed Sultan ◽  
Chih Ping Tso ◽  
Ervina Efzan Mohd Noor ◽  
Fadhel Mustafa Ibrahim ◽  
Saqaff Ahmed Alkaff
Keyword(s):  
Thermal Conductivity ◽  
Energy Balance ◽  
Parametric Study ◽  
Solar Collector ◽  
Parallel Flow ◽  
Operating Conditions ◽  
Balance Equations ◽  
Conductivity Type ◽  
Pv Module ◽  
Sunny Weather

Photovoltaic Thermal Solar Collector (PVT) is a hybrid technology used to produce electricity and heat simultaneously. Current enhancements in PVT are to increase the electrical and thermal efficiencies. Many PVT factors such as type of absorber, thermal conductivity, type of PV module and operating conditions are important parameters that can control the PVT performance. In this paper, an analytical model, using energy balance equations, is studied for PVT with an improved parallel flow absorber. The performance is calculated for a typical sunny weather in Malaysia. It was found that the maximum electrical and thermal efficiencies are 12.9 % and 62.6 %, respectively. The maximum outlet water temperature is 59 oC.

Detection for Particles Moving in Micro Channel with Multifiber Array Sensor

2012 ◽  
Vol 132 (7) ◽  
pp. 203-211 ◽  
Author(s):  
Ichiro Okuda ◽  
Tomohito Takubo ◽  
Yasushi Mae ◽  
Kenichi Ohara ◽  
Fumihito Arai ◽  
...  
Keyword(s):  
Micro Channel ◽  
Array Sensor

Development of Monolithic Si Micro Channel Plate

2009 ◽  
Vol 129 (12) ◽  
pp. 461-468
Author(s):  
Keishi Sakuma ◽  
Kohro Takahashi
Keyword(s):  
Micro Channel ◽  
Channel Plate ◽  
Micro Channel Plate
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