This paper presents SySTEMA, an innovative approach to perform Safety Analyses on complex systems, based on the modelling of their functionalities, behaviors and architecture. System safety analysis techniques are well known and are extensively used during the design of safety-critical systems. Since these analyses are highly subjective and dependent on the skill of the practitioner, it is unli...

The paper analyzes the various factors that cause failure of refrigerator evaporator. The refrigerator evaporator failure spectrum is constructed through qualitative analysis of the fault tree system after building a corresponding fault tree system. There is an analysis procedure of fault tree system based on computer aided fault tree analysis system (CAFTA).

Since the 1985 release of methyl isocyanate in Bhopal, India, which killed thousands, the chemical industry has begun to use process hazard analysis techniques more widely to protect the public from catastrophic chemical releases. These techniques can provide a systematic method for evaluating a system design to ensure that it operates as intended, help identify process areas that may result in...

Dependability analyses in the design phase are common IEC 60300 standards to assess reliability, risk, maintainability, and maintenance supportability of specific physical assets. Reliability risk assessment uses well-known methods such as failure modes, effects, criticality analysis (FMECA), fault tree (FTA), event (ETA)to identify critical components modes based on rate, severity, detectabili...

Chemical Process Plant as a complex system requires good scientific knowledge on different issues including Process Safety Analysis (PSA). Fuzzy logic is the collective name for “Fuzzy set analysis” and “Possibility theory”, able to use random or approximate data in the Process Safety Analysis. This paper explains the impact of fuzzy set theory for basic tools used in Process Safety Analysis. I...

Mental workload assessment is essential for the optimal interaction of human system in manufacturing industry. Manufacturing industry engaged construction, maintenance, and fabrication service. Performance worker will be lower if higher workload. In are two type workers that mainly involved process such as operator welder. This was found several defects finished good which caused company to suf...

The coastal area as a densely populated with high socioeconomic activity is currently experiencing impacts in various sectors due to the COVID-19 virus outbreak. However, efforts minimize impact of pandemic are still general and have not taken consider conditions communities areas. This analysis aims determine factors that cause community Kenjeran experience decline decrease trade economic iden...

The reliability analysis of critical systems can be performed using fault tree analysis. One of the common approaches used for fault tree analysis is Monte Carlo simulation. The purpose of this paper is therefore to show an algorithm to speed up Monte Carlo simulation for analyzing fault tree with parallel computing in GPU. To this end, we use time-to-failure tree to model fault tree with Compu...