scholarly journals Resonance control for the coupled cavity linac and drift tube linac structures of the Spallation Neutron Source linac using a closed-loop water cooling system

2002 ◽  
Author(s):  
J.R. Bernardin ◽  
R.L. Brown ◽  
S.N.M.I. Brown ◽  
G.R. Bustos ◽  
M.L. Crow ◽  
...  
Keyword(s):  
Neutron Source ◽  
Drift Tube ◽  
Closed Loop ◽  
Cooling System ◽  
Spallation Neutron Source ◽  
Water Cooling ◽  
Drift Tube Linac ◽  
Resonance Control ◽  
Water Cooling System ◽  
Coupled Cavity

scholarly journals Thermal Analyses and Frequency Shift Design Studies for the Spallation Neutron Source Drift Tube Linac

2001 ◽  
Author(s):  
Lucie Parietti
Keyword(s):  
Finite Element ◽  
Frequency Shift ◽  
Neutron Source ◽  
Drift Tube ◽  
Waste Heat ◽  
Cooling System ◽  
Normal Operation ◽  
Spallation Neutron Source ◽  
Rf Heating ◽  
Drift Tube Linac

Abstract Los Alamos National Laboratory is responsible for the design of the room-temperature linac for the Spallation Neutron Source (SNS). This linac consists of a Coupled-Cavity Linac (CCL) and a Drift Tube Linac (DTL). During normal operation, about 80% of the Radio Frequency (RF) power is dissipated in the DTL cavity walls. This waste heat causes the cavities to expand, causing shifts in their RF resonant frequency. The DTL relies on the water cooling system to compensate for the frequency shift caused by RF heating. To guide the design of the cooling system and the frequency control scheme, thermal expansion and frequency shift studies for several DTL cells are performed via numerical simulations. Temperature distributions and thermal deformations resulting from RF heating are evaluated separately for the tanks and 22 drift tubes using finite element models. The frequency shift of these cells are then computed based on the calculated deformations. Size and locations of the cooling channels are designed accordingly to provide adequate cooling and minimize frequency shift. The tank finite element model used to predict the tank temperature profile is benchmarked against experiment data.

Design on Closed Loop Soft Water Cooling System for Shougang Qiangang No.3 BF

2013 ◽  
Vol 634-638 ◽  
pp. 3123-3127
Author(s):  
Lin Li ◽  
Fu Ming Zhang ◽  
Yong Liu ◽  
Dai Jun Wang ◽  
Yong Qi Li
Keyword(s):  
Closed Loop ◽  
Cooling System ◽  
Soft Water ◽  
Design System ◽  
Corrosion Mechanism ◽  
Water Cooling ◽  
Full Account ◽  
Brick Lining ◽  
Lining Structure ◽  
Water Cooling System

Ability to improve cooling system, avoid untimely damage of BF lining and coolers, reduce maintenance frequency and prolong maintenance period during the furnace campaign, it is imperative for BF longevity. Describe development of cooling system, illustrate economic rationality and safe reliability of closed loop soft water cooling system, stress equipments, process, design, system measurement and control on closed loop soft water cooling system for Shougang Qiangang No.3 BF. Take full account of BF working condition, lining structure and corrosion mechanism, combine actual investment, choose advanced and rational coolers; develop segmentation design for cooling system, strengthen BF cooling effectively, boost system steering rate in order to reduce temperature of brick lining, prolong lifetime of brick lining, keep the lining integrity, maintain rational furnace profile, ensure BF production and longevity.

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