scholarly journals Delivering the Nuclear Promise Through Effective ISE and IST Programs for Dynamic Restraints

2017 ◽  
Author(s):  
Matt Palmer
Keyword(s):  
Best Practices ◽  
Visual Inspection ◽  
Nuclear Facilities ◽  
Safe Operation ◽  
Significant Cost ◽  
Testing Procedures ◽  
Service Testing ◽  
Safety Function ◽  
Efficiency And Effectiveness ◽  
Program Requirement

Delivering cost reductions via the Nuclear Promise can appear to be at odds with the safe operation and maintenance of nuclear facilities. However, In-Service Examination (ISE) and In-Service Testing (IST) programs can deliver significant gains in efficiency and effectiveness with proper application of the ASME O&M code. Along with scheduled maintenance prescribed by the manufacturer, Dynamic Restraints (snubbers) require periodic visual inspection and testing to ensure the installed population will perform its safety function during seismic events or dynamic operational transients. Methods prescribed in the ASME O&M Code Subsection ISTD are effective in identifying bad actors and verifying the operational readiness of the population, but can come at a significant cost when not properly utilized, especially when the penalty for a failed test or inspection is applied to the ISE or IST campaign. The Nuclear Promise can be realized in a snubber ISE or IST program with a thorough understanding of the intent of the prescribed testing and the mechanics of the safety functions to be verified. With this understanding, legacy requirements that were grandfathered into a program can be examined as to their relevance, and procurement specifications and testing procedures can be written that are pertinent and current to industry best practices. This paper, through the lens of a snubber manufacturer and ASME certificate holder, examines some common and uncommon examples found in industry that add significant cost, time, or dose to a snubber ISE/IST program, and the basis for eliminating them. The methodology used to evaluate an ISE/IST program requirement and determine its effectiveness in verifying a snubber’s safety function while satisfying the O&M code could be used for other components under the jurisdiction of the O&M code. In this manner, the Nuclear Promise can be safely delivered in an ISE/IST program that does not compromise the intent or integrity of Code requirements. Paper published with permission.

Case Study for Reducing Tubing Failures in Suriname's Tambaredjo Field

2014 ◽  
Author(s):  
D.. Nurmohamed ◽  
H. Chin Lien ◽  
S.. Kisoensingh
Keyword(s):  
Best Practices ◽  
Rotational Motion ◽  
Direct Contact ◽  
Visual Inspection ◽  
Pilot Program ◽  
Pilot Test ◽  
Sucker Rod ◽  
Tubing String ◽  
Shallow Wells

Abstract In Staatsolie, as of December 2013, there were 1549 shallow wells from its 3 oilfields. One thousand one hundred and thirty (1130) of these were in the Tambaredjo field (TAM field). In the 3 decades of its operations, the prime mechanism for lifting the 15.6oAPI crude to surface has been with progressive cavity pumps (PCP). The down hole pumps are surface driven and installed at an average true vertical depth (TVD) of 1000 ft. Oilfield best practices are employed in the design, installation and operation of the production strings and pumps. In the period 2008-2012 an average 580 down hole failures occurred annually of which 54% was caused by tubing leaks, with a repetitive frequency of up to 6 faillures per year on individual wells. Visual inspection of internal tubing's have shown that the principal failure mechanism stems from rod tubing wear (abrasion caused by the rotational motion) exacerbated by the corrosiveness of the produced fluids. Most of the tubing wear occurs at the tubing body in direct contact with the rod couplings. It is found that most tubing leakages (up to 70%) occur on the lower part of the tubing string above the pump. Previous installation of shorter rods above the pump, which is causing a high eccentrically movement of the rod string, also increased the occurrences of these failures directly above the pump. In an effort to reduce these tubing failures, an eight-well pilot program was commenced to install rod guides in wells with the highest failure rate and to install a sucker rod of 25 feet right above the pump. These eight wells were selected based on their high tubing failure rates. Although the program is still being conducted, preliminary results thus far have been quite promising in these wells. In four (4) wells, the work-over frequency was reduced from average 5 to 3 jobs per annum resulting in 40% reduction. The remaining 4 wells are still producing after an average 5-month period without any tubing failures. This paper presents the approach and strategy used to minimize rod-tubing wear in shallow vertical well applications based on the outcome of the pilot test.

Selection and Adaptation of the Methodology for Managing Innovative Programs in IT-Dependent Companies

2021 ◽  
pp. 3-20
Author(s):  
Lada Chernyh
Keyword(s):  
Best Practices ◽  
Innovation Management ◽  
Innovative Development ◽  
Development Programs ◽  
Efficiency And Effectiveness

The article is devoted to the study of methodologies for managing innovative programs in IT-dependent companies and the development of recommendations for their adaptation in the company. Concepts, standards and best practices in the field of innovation management, principles and methods of forming innovative development programs in IT-dependent companies have been analyzed. The factors that are critical for ensuring the efficiency and effectiveness of innovation programs for managers of the companies under consideration have been identified. Recommendations have been developed for adapting the P2M standard for IT-dependent companies, taking into account the factors that contribute to the efficiency and effectiveness of innovative programs.

Structure and Fluid Dynamic Characteristics Analysis of Enclosed Nuclear Electric Valve

2015 ◽  
Vol 740 ◽  
pp. 131-135
Author(s):  
Chao Zhang ◽  
Jin Sheng Zhang ◽  
Zhi Wang
Keyword(s):  
High Pressure ◽  
Fluid Dynamic ◽  
Dynamics Analysis ◽  
Nuclear Facilities ◽  
Safe Operation ◽  
Position Accuracy ◽  
Valve Gate ◽  
Pressure Steam ◽  
Characteristics Analysis ◽  
Dynamic Characteristics Analysis

The electric valve, cutting off or connecting pipeline of nuclear equipment, is an essential component of nuclear facilities for safe operation. The structure of self-developed enclosed nuclear electric valve is introduced in the paper firstly, and dynamics analysis of steam fluid in valve is carried out to tackle typical problems including leakage in the rapid open-close process of valve for high-temperature and high-pressure steam fluid. It can be determined that dynamic characteristic of steam fluid will directly affect force suffered by valve in the rapid open-close process, greatly influencing movement and ultimate position accuracy of valve gate.

scholarly journals Safe operation of mini UAVs: a review of regulation and best practices

2015 ◽  
Vol 29 (19) ◽  
pp. 1221-1233 ◽  
Author(s):  
D. Sanz ◽  
J. Valente ◽  
J. del Cerro ◽  
J. Colorado ◽  
A. Barrientos
Keyword(s):  
Best Practices ◽  
Safe Operation

Structural Module Partition and Fault Diagnosis of Nuclear Electric Valve Based on Function Analysis

2014 ◽  
Vol 670-671 ◽  
pp. 1366-1369
Author(s):  
Chao Zhang ◽  
Jin Sheng Zhang ◽  
Zhi Wang
Keyword(s):  
Fault Diagnosis ◽  
Structure Analysis ◽  
Function Analysis ◽  
Nuclear Facilities ◽  
Safe Operation ◽  
Essential Component ◽  
Working Performance ◽  
Nuclear Device ◽  
Module Partition ◽  
Direct Correspondence

The electric valve cutting off or connecting pipeline of nuclear equipment is an essential component of nuclear facilities for safe operation, whose reliability directly determines working performance of entire nuclear device. Based on function analysis, module partition and structure analysis of valve have been carried out in the paper, and the direct correspondence between common faults and structural modularization of valve has been established. Furthermore, the proper methods and procedures of fault diagnosis for nuclear valve are put forward, which can guarantee safe operation of nuclear facilities.

scholarly journals Safety Assessment of Rehabilitation Robots: A Review Identifying Safety Skills and Current Knowledge Gaps

2021 ◽  
Vol 8 ◽  
Author(s):  
Jule Bessler ◽  
Gerdienke B. Prange-Lasonder ◽  
Leendert Schaake ◽  
José F. Saenz ◽  
Catherine Bidard ◽  
...  
Keyword(s):  
Best Practices ◽  
Adverse Events ◽  
Safety Assessment ◽  
Rehabilitation Robot ◽  
Safety Skills ◽  
Limit Values ◽  
Testing Procedures ◽  
Robot Safety ◽  
Rehabilitation Robots ◽  
Wide Range

The assessment of rehabilitation robot safety is a vital aspect of the development process, which is often experienced as difficult. There are gaps in best practices and knowledge to ensure safe usage of rehabilitation robots. Currently, safety is commonly assessed by monitoring adverse events occurrence. The aim of this article is to explore how safety of rehabilitation robots can be assessed early in the development phase, before they are used with patients. We are suggesting a uniform approach for safety validation of robots closely interacting with humans, based on safety skills and validation protocols. Safety skills are an abstract representation of the ability of a robot to reduce a specific risk or deal with a specific hazard. They can be implemented in various ways, depending on the application requirements, which enables the use of a single safety skill across a wide range of applications and domains. Safety validation protocols have been developed that correspond to these skills and consider domain-specific conditions. This gives robot users and developers concise testing procedures to prove the mechanical safety of their robotic system, even when the applications are in domains with a lack of standards and best practices such as the healthcare domain. Based on knowledge about adverse events occurring in rehabilitation robot use, we identified multi-directional excessive forces on the soft tissue level and musculoskeletal level as most relevant hazards for rehabilitation robots and related them to four safety skills, providing a concrete starting point for safety assessment of rehabilitation robots. We further identified a number of gaps which need to be addressed in the future to pave the way for more comprehensive guidelines for rehabilitation robot safety assessments. Predominantly, besides new developments of safety by design features, there is a strong need for reliable measurement methods as well as acceptable limit values for human-robot interaction forces both on skin and joint level.

scholarly journals Evaluation of testing procedures for real-scale sewage pipes

2021 ◽  
Author(s):  
S. Ulutaş ◽  
M. Wichern ◽  
B. Bosseler
Keyword(s):  
False Positive ◽  
Visual Inspection ◽  
False Positive Rate ◽  
Test Methods ◽  
Error Rates ◽  
Leak Test ◽  
Testing Procedures ◽  
Air Overpressure ◽  
Test Pressure ◽  
Real Scale

Abstract Tests to determine the tightness of wastewater pipes can in some cases produce results that are worthy of discussion. Therefore, testing procedures for real-scale sewage pipes used for house connections were evaluated and data was statistically analyzed. The results of the investigation showed that leaky pipes are detected with a very high degree of reliability by all leak test methods. The test methods are also robust against errors by expert testers and deviations from the test specifications. In contrast, tight pipelines can also be incorrectly classified as ‘leaking’ (test failed) to a significant extent during leak tests. Even for the more reliable test methods, i.e. air overpressure, air underpressure and water with low test pressure, a tight pipe is incorrectly classified as leaking (false positive) in one out of ten cases (10%). The highest false positive rate was 20% for water with high test pressure. In addition to the leak test methods, the quality of the visual inspection was also analysed. Here it was found that visual inspection is not sufficiently reliable for determining the tightness of pipelines above the groundwater level. Error rates of approximately. 50% were found for the detection of tight and leaky pipelines.

scholarly journals Republic of Korea

2020 ◽  
Vol 20 (276) ◽  
Author(s):  
Keyword(s):  
Best Practices ◽  
Asian Crisis ◽  
Republic Of Korea ◽  
Government Agencies ◽  
Creditor Rights ◽  
International Standard ◽  
Its Analysis ◽  
Efficiency And Effectiveness

The Korean insolvency and creditor rights framework is complex and has undergone several reforms in recent years. Consistent efforts to enhance the efficiency and effectiveness of the insolvency system have been made since the Asian crisis by the multiple government agencies that oversee the functioning of the insolvency framework in Korea. This note summarizes the key findings of the analysis of select aspects of the Korean insolvency and creditor rights system against the international standard.2 While the framework for personal insolvency is also discussed (See Annex), its analysis is not prescriptive, as there are no international best practices in this area.

scholarly journals Auditor Independence and its Impact on Financial Statements Audit (Evidence from Oman)

2020 ◽  
Vol 8 (3) ◽  
pp. 1-10
Author(s):  
Mahmoud Manayseh ◽  
D C Stalin
Keyword(s):  
Best Practices ◽  
Financial Statements ◽  
Auditor Independence ◽  
Sultanate Of Oman ◽  
Administrative Control ◽  
Financial Interest ◽  
Study Results ◽  
Efficiency And Effectiveness ◽  
Illegal Acts ◽  
External Auditor

Defrauding and error discovering by external auditor influence his relationship with his clients of professional auditing, a financial interest that auditor received it affect on the credibility of auditing and the relationships between the practices associated with the audit and the rules of professional conduct standards factors and changing the external auditor of professional auditing in Sultanate of Oman are investigated analyzed and to know the aspects related to change the External Auditor and its impact on the principle of independence, an issue of stakeholders interest in the companies under review.In the framework of the keenness of financial and administrative control of Oman to keep up with development in the professional work and the adoption of global best practices in audit work so as achieve efficiency and effectiveness in business and goals accomplished device, the study results from the questionnaire concluded that the subsequent discovery of the error, fraud and illegal acts after the issuance of the report shows the negligence of the references in the performance of his professional duties of professional auditing in Sultanate of Oman, the associated application with a review of the professional rules and standards of behavior affect change in the external auditor and also the quality associated with checking the extent of the auditor’s commitment to auditing standards process of professional auditing in Sultanate of Oman.

scholarly journals Program Coordinators Disposition Toward Educational Leadership Best Practices

2011 ◽  
Vol 1 (4) ◽  
pp. 35
Author(s):  
J. Eric Tubbs
Keyword(s):  
Data Analysis ◽  
Educational Leadership ◽  
Best Practices ◽  
Field Experiences ◽  
The Other ◽  
Leadership Programs ◽  
Program Coordinators ◽  
Educational Leadership Programs ◽  
Efficiency And Effectiveness ◽  
Master Of Education

The importance of field experiences in educational leadership was well documented in literature. However, scholars and practitioners disagreed on how field experiences should be provided to achieve the greatest effect. On the other hand, practicum efficiency and effectiveness were not assessed in the last ten years. Therefore, this study was designed to explore how field experiences are offered in the educational leadership programs (Master of Education and Add-On Program) in Georgia. Through data analysis, the researchers shared their observation of how field experiences in educational leadership could be enhanced in Georgia. Although the study was conducted in Georgia, the findings have nationwide implications.

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