Maintenance expert

Catalytic Point Detection Moderate Moderate ISA CSA (API) Easily Positioned Industry Standard Detection Device Poisoning Limited to Spot Detection Costly Maintenance Expert Judgment Required for Placement Point Sources (Pumps, Compressors, Seals, etc.)... 

Leonard concludes from Table 6-16, wherein annual maintenance costs of specific equipment are listed, that the maintenance angle should be considered as fully as the operating aspects. A review of the preliminary plant design by a maintenance expert can save many dollars in the course of the operating life of the plant. 

The scribe will enter the node description into the hazards analysis software. The start and stop points for the node should all be identified, as discussed above. Operations and maintenance experts will then provide some history and operating experience about it. Any relevant documentation to do with that node, such as equipment data sheets or MSDSs, should be put before the team at this time. 

For example, the complete operating documentation of a cement works with a clinker output of more than 3000 t/day comprises some 25 standard lever-arch or box files, Preparing the maintenance programs from this mass of machine manufacturers literature requires the services of five experienced maintenance experts and organization experts. 

The results will very likely surprise you. You may find that the best practices have not been followed in your organization for a long time. In order to fix the problem you must understand that the culture of the organization is at the bottom of the situation. Everyone may claim to be a maintenance expert but the conditions within a plant generally cannot often validate that this is true. In order to change the organization s basic beliefs, the reasons why an organization does not follow these best practices in the repair of their equipment must be identified. 

The effect of World War 11 was very drastically felt in the sugar industry. Raw materials, machine parts, and maintenance items needed to maintain sugar processing were diverted to the war industry. Many sugar industry experts were conscripted into the armed forces. In the European theater of war, factories and agriculture were destroyed. At the end of World War 11 sugar production barely totalled 19,162,000 t/yr. 

Several steps can be taken to maximize the run time for the reciprocating compressor. Since wear is a function of rubbing speed, the piston speed can be kept to a minimum. Chapter 3 made recommendations for piston speed. Reliability problems due to valves are reputed to account tor 40% of the maintenance cost of the compressor. Valves are the single largest cause for unplanned shutdowns. Basically, valve life can he increased by keeping the speed of the compressor as low as practical. At 360 rpm, the valves are operated six times a second. At 1,200 rpm, ihc valves operate 20 times a second or 1,728,000 times in a day. It is not difficult to understand why the valves are considered critical. To keep the reliability in mind, valve type, material selection and application considerations such as volume ratio, gas corrosiveness, and gas cleanliness need attention by the experts. One final note is that while lubrication is an asset to the rubbing parts, it is not necessarily good for valve reliability. 

This concept book is intended for nse by chemical engineers and other technical personnel involved in the design, operation, and maintenance of facilities and eqnipment where deflagration and detonation arresters (DBAs) may be reqnired. These people are nsnally technically competent individnals who are aware of, bnt not experts in, combnstion phenomena. The facilities where snch devices may be needed inclnde chemical plants, petrochemical plants, petrolenm refineries, pharmacentical plants, specialty chemical plants, storage tank farms, loading and nnloading facilities, and pipelines. 

The aforementioned reviews and assessments were assimilated to characterize the effect of dielectric, rotational, and mechanical hazards on motor performance and operational readiness. Functional indicators were identified that can be monitored to assess motor component deterioration caused by aging or other accidental stressors. The study also includes a preliminary discussion of current standards and guides, maintenance programs, and research activities pertaining to nuclear power plant safety-related electric motors. Included are motor manufacturer recommendations, responses from repair facilities to a questionnaire, in-service inspection data, expert knowledge, USNRC-IE audit reports, and standards and guides published by the Institute of Electrical and Electronics Engineers (IEEE). 

In addition to addressing the practicalities of database maintenance, we also aim to enhance the range of the facilities available, to make the information within CHIRBASE more readily accessible to users. CHIRBASE contains two form-based applications for query building designed to help novice or expert users to formulate queries the query menu and the automatic search tool. 

Finally, a number of industry cngiiiceriiig experts and industi-y engineering organizations voiced concern that the electric grid may become less reliable after restructuring. The operation and maintenance of the North American electric grid depends on the coordinated interaction of more than a hundred control... 

The checking and readjustment as necessary of all safety controls is an essential part of periodic maintenance - possibly annually. A time should be chosen when temporary stoppage of the plant will not cause inconvenience. Unsafe conditions can be set up by throtding valves, stopping pumps, or removing the load. In each case the relevant safety control should function at the pre-set conditions. Safety checks on specialized items such as fire dampers may be required from time to time by local authorities, and these checks, together with the expert advice available from the testing officers, should be welcomed as proof of the inherent safety of the installation. 

A HAZOP study requires considerable knowledge of the process, its instrumentation, and its operation. This information is usually provided by expert team members. The team should include individuals with a variety of experience, including design, engineering, operations, and maintenance. 

The second step, of sorting the selected precursors according to their perceived safety related consequences, is achieved by studying safety reports and confronting the precursors with multi-disciplinary experts, i.e. experts from production, maintenance and safety. The expert group provided the identified precursors with perceived safety related consequences, by formulating possible scenario s, from which the consequences could be obtained. From both the likelihood (see Table 17) and perceived consequences, the perceived risk class is obtained, as discussed in Chapter 5. Figure 42 shows the risk matrix for the precursors presented in Table 17. 

Section 4.1). For existing facilities, operating and maintenance personnel should also participate in the inherent safety review. A smaller team may be appropriate for facilities such as warehouses. In any case, the review team must include one or more individuals with the background and experience to recognize and understand the chemical reactivity hazards and how they may lead to uncontrolled chemical reactions. In this regard, outside experts may need to be consulted. 

The expert system currently has no rule entry or maintenance facilities. Rules are entered and modified using the Apollo computer text editor. This is acceptable for a protot3rpe, but not for a production system. Before these facilities are added, its cost and capabilities will need to be compared to those of commercial expert systems. 

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