Commissioning and operational results of the 12 GeV helium compression system at JLab

Cryogenic Engineering Conference 2015

材料科学;物理学

Knudsen, P.^1 ; Ganni, V.^1 ; Dixon, K.^1 ; Norton, R.^1 ; Creel, J.^1

Cryogenics Group, Engineering Division, Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News

VA

23606, United States^1

关键词: Compression system;    Compressor systems;    Design change;    Jefferson Lab;    Operational range;    Pressure level;    Process condition;    Volumetric efficiency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/101/1/012126/pdf
DOI  :  10.1088/1757-899X/101/1/012126

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The new compressor system at Jefferson Lab (JLab) for the 12 GeV upgrade was commissioned in the spring of 2013 and incorporates many design changes, discussed in previous publications, to improve the operational range, efficiency, reliability and maintainability as compared to previous compressor skids used for this application. The 12 GeV helium compression system has five compressors configured with four pressure levels supporting three pressure levels in the new cold box. During compressor commissioning the compressors were operated independent of the cold box over a wide range of process conditions to verify proper performance including adequate cooling and oil removal. Isothermal and volumetric efficiencies over these process conditions for several built-involume ratios were obtained. This paper will discuss the operational envelope results and the modifications/improvements incorporated into the skids.