Lifecycle approach

ANSI/ISA-84.00.01-2004 covers a wide range of chemical process operations. Due to its broad scope, the standard has many general requirements addressing the complete lifecycle of the SIS, starting with the identification of SIS requirements in the risk assessment and ending when the SIS is decommissioned. While there are many different ways of representing the lifecycle, a simple four-step approach can be followed  

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One example of this type of product innovation is the 3M Novec 1230 Fire Protection Fluid that was developed using a balanced lifecycle approach. Until the early 1990s, halon was used for critical fire protection applications (e.g., communications and electronic equipment). With the production of halons banned because of high ozone depletion potential and most of the halon replacement... 

As part of the lifecycle approach to validation, periodic evaluations of the processes and products will determine the periodicity of revalidation. Certain processes will require an annual revalidation. Revalidation also occurs when there are significant changes to a process or piece of equipment, which would void the original validation. 

The functional safety achieved in any process facility is dependent on a number of activities being carried out in a satisfactory manner. The purpose of adopting a systematic safety lifecycle approach towards a safety instrumented system is to ensure that all the activities necessary to achieve functional safety are carried out and that it can be demonstrated to others that they have been carried out in an appropriate order. lEC 61511-1 ANSI/ISA-84.00.01-2004 Parti (lEC 61511-1 Mod ) sets out a typical lifecycle in Figure 8 and Table 2. Requirements for each lifecycle phase are given in Clauses 8 through 16 of lEC 61511-1 ANSI/ISA-84.00.01-2004 Part 1 (lEC 61511-1 Mod). 

A holistic lifecycle approach therefore aims to support or find solutions that are technically feasible, ecologically and socially defensible, and economically rational. A definition of the overall optimum must always take into account the interactions between ecology, economy, and technology. Ecological optimization must not, for instance, be purchased at the cost of failing to satisfy minimum technical specifications or designing a project that cannot be financed as a whole. 

In the spring of 2013, Teijin Aramid, has developed a computer tool, aimed at calculating the benefits of replacing steel wire ropes by equivalent synthetic aramid ropes in mine hoisting. The Customer Benefit Model (CBM) includes the recycling and production of the rope, however it is recognized that the dominant factor is the use-phase. The CBM can be extended to include the make phase as well as the recycle phase of the ropes. This would represent the total lifecycle approach which is often used in eco-efficiency and sustainability analysis. 

It was found that neither a PLM, nor an ERP-oriented standard application is able to supply the needed functionality for a lifecycle approach to product configuration. PLM systems are product-centered tools, whereas ERP systems consists of operational business tools. A JLR s specific configuration lifecycle management (CLM) system was proposed to support the complete product lifecycle for a JLR configuration [47]. Table 14.3 shows some aspects of PLM, CLM and ERP and their differences from a product configuration management perspective. 

The basic concept of inherently safer process design is to reduce the hazard of a process by reducing or eiiminating the hazards associated with materials and operation of the process. This approach is described in detaii in the CCPS book, Inherently Safer Chemical Processes, A Lifecycle Approach, 2nd edition, 2008. in brief, there are four major strategies for inherently safer design ... 

The manufacturer has used the safety lifecycle approach to the device design and configuration management... 

CCPS/AIChE Inherently Safer Chemical Processes, A Lifecycle Approach, 2nd edition, Wiley-Interscience, New York, 2008, ISBN 978-0-471-77892-9. 

A lifecycle approach helps us to engage in whole systems thinking -both understanding the complex interactions between energy and material throughout the life of a product, and thinking in the long term about the impact... 

The publication of lEC 61508 introduced a lifecycle approach for safety systems. Additionally, it formulated a process approach for product development and the relations to quality management systems were formulated. 

A policy statement to show that the motor vehicles are used only when required to conduct company business. Fleet vehicles should be managed in accordance with the lifecycle approach to material management, including the principles of economy and minimizing any negative environmental impact. 

Two of the key standards to do with safety instrumentation are EC 61511 and lEC 61508. They are performance-based, nonprescriptive standards that provide a detailed framework and a lifecycle approach for the design, implementation, and management of safety systems applicable to a variety of sectors with different levels of risk definition. 

In cases where a specialized safety system is being developed for a particular product or packaged unit (for example an elevator safety system) it may be necessary to carry out the software QA task over an entirely new PES design. In such cases the full software QA lifecycle approach may be needed as described in lEC 61508-3. 

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