نتایج جستجو برای: preheat

تعداد نتایج: 338  

2016
J F Myatt J Shaw V N Goncharov J Zhang A V Maximov R W Short R K Follett W Seka D H Edgell D H Froula

Hot electrons generated by the two-plasmon–decay instability in direct-drive targets are a preheat concern. A mitigation strategy that employs a layered ablator [V. N. Goncharov et al., Phys. Plasmas 21, 056315 (2014)] has been investigated both numerically and experimentally. The numerical simulations described here predict reduced hot-electron production compared with similar targets using ei...

Journal: :Energies 2021

In this study, a series of experiments were conducted on testing facility and real-scale furnace, for analyzing the nitric oxide (NO) emission reduction. The effects temperature, oxygen concentration, amount secondary combustion air investigated in single-burner system. Additionally, NO-reduction rate before after modifications both burner furnace air-staged evaluated reheating furnace. air-to-...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1991

2013
Purshottam Kumar Ranjit Singh

This paper deals with a novel interactive approach of Artificial Neural Network (ANN) as an optimization tool for optimizing process parameters of rotary furnace. This approach solves a very challenging problem in the area of rotary furnace i. e. selection of optimal process parameters for producing homogenous quality castings. Rotary furnace involves several critical parameters like flame temp...

2014
Seyoung Kim Youngsu Son Heechang Park Cheolhoon Park Dongwon Yun

In this study, we examined the sensitivity of embossed pattern depth to preheat supply and cooling, and also tested how pattern type and density affect the embossed depth. The main factors such as roller temperature, roller speed, and applied force that mostly affect embossed pattern qualities of roll-to-roll hot embossing were determined based on the response surface methodology. Eight conditi...

Journal: :The Review of scientific instruments 2010
Hye-Sook Park E D Dewald S Glenzer D H Kalantar J D Kilkenny B J MacGowan B R Maddox J L Milovich R R Prasad B A Remington H F Robey C A Thomas

Understanding hot electron distributions generated inside Hohlraums is important to the national ignition campaign for controlling implosion symmetry and sources of preheat. While direct imaging of hot electrons is difficult, their spatial distribution and spectrum can be deduced by detecting high energy x-rays generated as they interact with target materials. We used an array of 18 pinholes wi...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
C K Li R D Petrasso

From fundamental principles, the interaction of directed energetic electrons with a high-temperature hydrogenic plasma is analytically modeled. The randomizing effect of scattering off both plasma ions and electrons is treated from a unified point of view. For electron energies less than 3 MeV , electron scattering is equally important. The net effect of multiple scattering is to reduce the pen...

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