ADVANCES in NATURAL and APPLIED SCIENCES

Transcription

1 ADVANCES in NATURAL and APPLIED SCIENCES ISSN: Published BYAENSI Publication EISSN: May 11(7): pages Open Access Journal Hazard Identification And Risk Assessment For Generator Test Bed In Heavy Engineering Industry 1 Periyasamy. E, 2 Senthil. M, 3 Rajmohan. P, 4 Dheenadhayalan. T 1 PG Research Scholar, Centre for Environmental Health &Safety, Knowledge Institute of Technology, Salem 2 Associate Professor, Department of Mechanical Engineering, Knowledge Institute of Technology, Salem 3 Deputy General Manager (Safety), Toshiba JSW Power Systems Pvt Ltd, Chennai 4 Assistant Professor, Department of Mechanical Engineering, Knowledge Institute of Technology, Salem Received 28 January 2017; Accepted 22 April 2017; Available online 12 May 2017 Address For Correspondence: Periyasamy. E, PG Research Scholar, Centre for Environmental Health &Safety, Knowledge Institute of Technology, Salem Copyright 2017 by authors and American-Eurasian Network for ScientificInformation (AENSI Publication). This work is licensed under the Creative Commons Attribution International License (CC BY). ABSTRACT HIRA is a systematic risk assessment tool that can be used to assess the risks of various hazards involving process activities. Hazard which may leads to an accident or incident. Accident is an unwanted or unexpected event is never scheduled or planned. Many factors contribute to an accident that may cause a significant losses and even body injury. That is always occurs in heavy engineering industry.hira is a structural and systematic method to examine the existing and also planned process.hira is a part of the OHSAS 18001:2007 standard in clause HIRA is performed to prevent an efficient operation through identify the hazards in work activities and assess the risk and provide a control measures and review the control measures. That will reduce level of losses and injury. KEYWORDS: Hazard Identification, Risk Assessment, Accident, Generator Test Bed, OHSAS 18001:2007 INTRODUCTION In this paper deals with the HIRA for generator test bed in heavy engineering industry. Based on the hazard identification and risk assessment in operation area the following potential hazard has been identified. The potential hazards are given as follow 1. Fire and explosion hazard 2. Electrical hazard 3. Ergonomic hazard 4. Dust Hazard After the risk assessment the necessary control measures are given the each hazard including the low level risk. Need For Hazard Identification And Risk Assessment: Risk Assessment will useful for identify the low, medium, high risks. Provide the information on the probability of harm and severity of harm Useful for in safety improvements. Useful for in manage the risks. Reduce the risk at the acceptable region. ToCite ThisArticle: Periyasamy. E, Senthil. M, Rajmohan. P, Dheenadhayalan. T., Hazard Identification And Risk Assessment For Generator Test Bed In Heavy Engineering Industry. Advances in Natural and Applied Sciences. 11(7); Pages:

2 824 Periyasamy. E et al., 2017/Advances in Natural and Applied Sciences. 11(7) May 2017, Pages: About Generator Test Bed: Generator Test Bed used for testing the outgoing generators process parameters and check its satisfying the specified requirements. Generators run by the connect the generator rotor to motor driving unit. The running time, the generators is check which is satisfying the requirements or not. Oils are used for the cooling, lubrication purposes with different pressures. Major process are given as follow STATOR ASSEMBLY ROTOR ASSEMBLY ROTOR INSERT TO STATOR LOCATE THE GENERATOR FLUSHING GENERATOR RUN TEST DISPATCH THE GENERATOR Fig. 1: Process Flow in Generator Test Bed Methodology: 4.1 Hazard Identification and Risk Assessment: Hazard identification and risk assessment are developed when plans are forms meet the organisations OH&S Policy. Assess the level of the risk for each identified hazards which useful for assess the probability and possible consequence of injury, illness. The next step is reducing the level of risk. HAZARD IDENTIFICATION ASSESSMENT CONTROL Fig. 2: Steps for Hazard Identification and Risk Assessment 4.2 Hazard Identification: Hazard identification means to recognize Hazard and define its characteristic and impacts. That will useful to identify hazards in each activity and know who can harm and how and what may damage and how.

3 825 Periyasamy. E et al., 2017/Advances in Natural and Applied Sciences. 11(7) May 2017, Pages: Types of Hazard: a) Mechanical hazard b) Electrical hazard c) Fire and explosion hazard d) Radiation hazards e) Toxic release f) Natural calamities Hazard identification tools: Tools of the hazard identification are follows, a)inspection: visual/checklist inspections done in work environment. b) Accident/Incident records: past incident records useful to identify the sources of potential to harm. c) Expert advice: some hazards can be identified with help of expert advice/information. d) Consultation: consult people who have experience in job aspects of hazardous activities. e) Task analysis: Breaking of individual s element hazards associated with some tasks is identified. f) Hazard analysis methods: HAZOP/HAZAN/HIRA methods are used for identifying hazards. g) Questionnaire s: three questions useful for identified hazards, Is there a source of harm? Who and what could be harmed? How could harm occur? h) Safety audit: safety audit is a critical appraisal of the effectiveness of existing of safety program in the plant. 4.3 Risk Assessment: Risk Assessment is estimate of magnitude of risk and decides the level of risk. Risk assessment is considered for severity of harm and likelihood of harm will occur. Risk=likelihood *severity Severity of harm: The severity of harm considered follows, a) The parts to be affected b) Nature of harm from slightly harm to extremely harm 1) Slightly harm 2) Harmful 3) Extremely harmful Table 4.3.1: for Severity of harm SEVERITY SEVERITY SCORING NON DISABLING INJURY FIRST AID TREATMENT NOT RETURN TO JOB WITH IN 48 HOURS MAJOR INJURY Likelihood of harm: a) Frequency and duration of hazard b) Number of personnel exposed FATAL

4 826 Periyasamy. E et al., 2017/Advances in Natural and Applied Sciences. 11(7) May 2017, Pages: Table 4.3.2: for likelihood of harm PROBABILITY OCCURRENCE /LIKELIHOOD PROBABILITY SCORING OF Level of the Risk: DAILY WEEKLY ONCE IN A MONTH ONCE IN A 3 MONTH /ONCE IN A SIX MONTH ONCE IN A YEAR Table 4.3.3: for level of risk LEVEL LOW MEDIUM HIGH UN SCORING ACCEPTABLE 4.4 Risk Control: Risk control is an action for eliminating the causes of detected risk or undesirable action. The hierarchy of control is an effective method to controls a risk as follows, a) Elimination: completely remove the hazardous process, substances from a work place. b) Substitution: completely removes the process or a hazardous substance for a less hazardous one. c) Engineering control: reduce the risk level with mechanical aids. d) Administrative control: follow the safety work policies, procedures, practices. e) Personal protective equipment: least risk control method is PPE; it protects the employee from exposure of hazard. Elimination Substitution Engineering Control Administrativ e Control Personal Protective Equipment Fig. 3: Hierarchy of control 4.5 Hira In Generator Test Bed: Table 4.5: for HIRA in Generator Test Bed HAZAR - PROCESS ACTIVITY D PROBABILI- TY SEVERITY LEVEL OF CONTROL MEASURES STATOR ASSEMBLY Connect the slings of the Crane to the Rotor Job Fall From Height Fatal 3 5 HIGH ENGINEERING CONTROL (FULL BODY HARNESS) Conclusion: Safety is the one of the key element for any type of the industry. To improve safety in work place by various risk analyzing tools and assess the level of risk. Risk level has to be reduced by using engineering and administrative control methods in work area. Some suggestions are given from my site for reducing a risk level in generator test bed. After Hazard identification and risk assessment tool is useful for reducing the level of risk and bring it to a tolerable level. The HIRA method is useful for identify the hazard the implementation of the control measures the effectiveness of these will revised. REFERENCES 1. Khairul Akmal Shamsuddin, Mohd Norzaimi CheAni, Ahmad Kamal Ismail, Investigation The Effective Of The Hazard Identification, Risk Assessment And Determining Control(HIRADC)In Manufacturing Process International Journal of Innovative Research in Advanced Engineering (IJIRAE) ISSN: (2). 2. GokulRaj, S., N. Shivasankaran, Hazard Identification And Risk Assessment In Deinking Plant International journal of research in Aeronautical and mechanical engineering, 2(3):

5 827 Periyasamy. E et al., 2017/Advances in Natural and Applied Sciences. 11(7) May 2017, Pages: SaravanaKumar, M., Dr.P. SenthilKumar, Hazard Identification And Risk Assessment In Foundry IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: , p-issn: X PP Indian Standard, Hazard identification and risk analysis - Code of practice [CHD 8: Occupational Safety, Health and Chemical Hazards] IS: IS15656: 5. Indian Standard Occupational Health and Safety Management Systems--Requirements with Guidance for Use (First Revision) IS: SheikAllavudeen, S., S.P. Sankar, Hazard Identification, Risk Assessment And Risk Control In Foundry IJSTE - International Journal of Science Technology & Engineering, 2: Sandeepsinghsachan, Rajiv Premi, Hazard Identification And Risk Assessment In LPG Bottling Plant IJSTE - International Journal of Science Technology & Engineering, 1(1):