Performance of Local Exhaust Ventilation Systems of Degreasing and Plating Workplaces

일부 탈지세척 및 도금공정 국소배기장치의 성능점검과 개선방안

  • Han, Don-Hee (Department of Occupational Safety and Health, College of Health Sciences, Inje University)
  • 한돈희 (인제대학교 보건대학 산업안전보건학과)
  • Published : 1998.11.13

Abstract

In order to evaluate and improve the performance of local exhaust ventilation systems for two TCE degreasing (A, B) and two electroplating (C, E) and one acid dipping & plating (D) operations located in Kimhae, the performance test was conducted with trace gases and a thermal anemometer (Kanomax 24-6111, Japan). For the inadequately designed systems, the improvement and redesigns in compliance with recommendation by ACGIH was suggested. The results of performance test for each system are as follows; 1. System of Workplace A was generally well-designed. Actual exhaust air flow rate was in excess of 68% above the recommended standard exhaust air flow rate. 2. System of Workplace B was very well-designed and completely enclosed. 3. All systems of Workplace C including hoods were poorly-designed and actual exhaust air flow rates were insufficient for open tanks. All systems should be upgraded according to ACGIH recommendations. 4. Supply and exhaust air flow rate of push-pull exhaust systems in Workplace D should be greatly increased. The width of flange of dipping tank hood should be increased with the value suggested. 5. System of Workplace E was well-designed. Actual exhaust air flow rate was in excess of 54% above the required.

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Acknowledgement

Supported by : 김해발전연구소