Upload
nimra-nayyar
View
159
Download
1
Embed Size (px)
Citation preview
INTRODUCTION & BASIS OF HAZOP (Hazard and Operability)
Hazards Identification During Operation
Objective Of The Presentation
• Give the knowledge or an understanding of analysis and training in how to apply their abilities to improve human
• Give an understanding about adequate safeguard (existing setup/new design) to control the risk.
Agenda
• What is HAZOP
• The main purpose/objectives.
• Advantages of HAZOP
• The basic concept
• Methodology
• Examples
What is “HAZOP” ?• Hazards and operability are a systematic, logical approach
to determining hazards.
• Hazards; which is defined as ”deviation” within parameters that may have dangerous ”consequences”.
• The parameters are; flow, temperature, pressure etc.
• HAZOP is a team work, people representing from different parts in a plant.
• HAZOP is basically for safety.
Purpose of the HAZOP
• To investigate how the system or plant deviate from the design intent.
• Create risk for personnel and equipment and operability problems.
Objectives of HAZOP• Any perceived DEVIATIONS from intended
design/operation.
• The CAUSES for those deviations
• The CONSEQUENCES of those perceived deviations.
• SAFEGUARDS to prevent causes and mitigate consequences of the perceived deviation.
• Recommend ACTIONS in design and operation to improve safety and operability of the plant
KEYWORDS
PRIMARY SECONDARY
HAZOP Example
HAZOP Example
• Deviation: Keyword being applied is FLOW/NO. • Cause: Potential causes that would result in deviation is the strainer ”S” blockage due to impurities in the dosing tank T might cause No Flow. • Consequences: Loss of dosing results incomplete reaction in V• Safeguard: Local pressure gauge in discharge from pump might indicate problem was arising".• Action: Fit a differential pressure gauge across the strainer, with perhaps a high dP alarm to give clear indication that a total blockage is imminent.
ADVANTAGES OF HAZOP
• It gives the design ideas with imaginative anticipation of deviations.
• HAZOP methodology is widely used to aid LOSS PREVENTION.
• Can be used almost all operations in process industries.
• No special level of academic qualification is required to perform HAZOP.
Major accidents/hazards in pharmaceutical plants/companies in recent years
• In 2012, there were 3 fatalities and 18 injuries from an explosion at Neptune Technologies. There was 1 death and 8 injuries at Teva Croatia.
•In 2012, there was an explosion at an API plant in Punjab causing 4 deaths and 17 injuries.
•In 2013, Amgen had an flammable explosion that injured two workers at their South San Francisco branch. Sandoz had a fire which caused major drug shortages but no one got hurt.
Always Remember!
• A single hazard could potentially lead to multiple forms of harm