A Novel Approach to Instrumentation and Application for Oil Concentration Ratio Measurement in Refrigeration System

Abstract

A new instrument has been developed for an on-line real-time measurement of oil circulating rate in refrigeration system utilizing a ultra-violet light absorption behavior of oil. A dual optical path configuration is introduced to the flow cell of this instrument,and it allows the instrument to perform dual beam absorbance measurement which contributes to provide quite stable and precise result. This instrument is applied on OCR measurement on several refrigeration system in transient state.