著者

Hajime Eguchi Tomomi Aoyama Kohei Seki Ichiro Koshijima

出版者

The Society of Chemical Engineers, Japan

雑誌

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (ISSN:00219592)

巻号頁・発行日

vol.49, no.7, pp.673-679, 2016-07-20 (Released:2016-07-20)

参考文献数

20

被引用文献数

1

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In the chemical industry, the components of the production process are 1) production plant personnel, 2) the production unit, and 3) the production support system (PSS). These elements are the sources of process resilience. Resilience refers to the capability to restrain the disruptive signals that occur inside and outside the production process. The resilience always changes and its deterioration invites various influences that disturb the production activities. Therefore, it is necessary to observe, maintain, and improve the resilience to maintain productivity. However, quantitative estimation of resilience has not been attempted yet, because estimating the resilience can be difficult. The reasons are 1) the sources of resilience are not clear, 2) the scale of estimation is not specific, and 3) the object to be restrained is not apparent. In this paper, a metric, criterion of measurement, and method for quantitative estimation of resilience in a PSS in the production process are proposed. The procedure to estimate the resilience is as follows. First, the skills of the production plant personnel are classified into three categories: operational, memory, and communication skills. Next, the work hours of production plant personnel in the daily routine are measured, and based on these data, the work hours devoted to each skill (WHDS) are estimated to obtain the value of the skills (VOS). The value of the skills is the criterion used to estimate the skill of the production plant personnel, and this value includes the level of the skills and the knowledge of the production plant personnel. As each function of the PSS is implemented instead of the skills of the production plant personnel, it is possible to obtain replaceable work hours devoted to the skills by PSS. Therefore, based on the level of the skills and knowledge replaced by the PSS in the daily routine of the production plant personnel, the resilience produced by the PSS can be estimated.

著者

Hajime Eguchi Tomomi Aoyama Kohei Seki Donal O'Donovan Ichiro Koshijima

出版者

The Society of Chemical Engineers, Japan

雑誌

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (ISSN:00219592)

巻号頁・発行日

vol.49, no.1, pp.35-41, 2016-01-20 (Released:2016-01-20)

参考文献数

19

被引用文献数

1 2

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The products and the capacity of production in the production process in the chemical industry depend on the design specification of the units. And many disruptions exist on the production process. Therefore, a company that aims to maximize the profit from the operation of a production process needs to restrain the influence of disruptive signals, and the capacity of the production process to restrain their negative effects is called the resilience. To maintain productivity, the company must improve the resilience. In this paper, the authors propose a metric for the quantitative estimation of resilience based on the skills and knowledge of production plant personnel on the production process in the chemical industry using the value of skills estimated quantitatively by the real measured value of skills of production plant personnel working at the production process. The value of skills is composed of the proficiency (level of skills and knowledge) and the labor efficiency (work hours devoted to skills), and it is possible 1) to estimate the averaged resilience of a work team by the potential capability of production plant personnel to compare the resilience of several production process, and 2) to know the change or trend of resilience in a single production process. It is possible to evaluate the metric of resilience commonly no matter what kind of process or number of the production plant personnel.