scholarly journals Bahaya Kesehatan dan Keselamatan Kerja Penggunaan Kompor Gas Dua Tungku Pada Industri Berskala Kecil Menggunakan Metode FMEA (Failure Modes and Effects Analysis)

2020 ◽  
pp. 354-361
Author(s):  
Kurnia Ardiansyah Akbar
Keyword(s):  
Failure Modes

Penggunaan bahan kompor gas bermanfaat dari sisi ekonomi dan efisiensi, namun di sisi yang lain meninggalkan permasalahan terutama pada aspek Ksehatan dan Keselamatan Kerja. Kasus kegagalan pada pemanfaatan kompor gas yang menyebabkan ledakan dan kebakaran disebabkan oleh berbagai faktor. Usaha telaah kritis terkait risiko dalam pemanfaatan dapat dilakukan dengan menggunakan penilaian risiko yang sistematis terkait kegagalan sistem pemanfaatan suatu alat yaitu FMEA (Failure Modes and Effects Analysis). Tujuan penelitian ini adalah untuk lakukan analisis risiko bahaya kesehatan dan keselamatan kerja penggunaan kompor gas dua tungku sehingga mendapatkan prioritas masalah yang perlu diwaspadai. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif. Penelitian dilakukan di Industri berskala kecil di Kabupaten Jember, Provinsi Jawa Timur di bulan Maret-Mei 2020. Analisis dan pengolahan data serta penentuan prioritas risiko dilakukan dengan pedoman FMEA. Hasil penelitian menunjukkan bahwa kompor gas dua tungku terdiri dari empat sistem yaitu sistem rangka kompor, sistem penyalaan burner dan pengaturan api. Sistem bahan bakar dan sistem pengaturan udara, dengan 12 subsistem dalam empat sistem tersebut. Penelitian ini menyimpulkan bahwa terdapat tiga risiko bahaya kesehatan dan keselamatan kerja pada penggunaan kompor gas dua tungku pada industri berskala kecil yaitu pertama bahaya pada sistem bahan bakar tepatnya subsistem regulator kompor, kedua bahaya kesehatan dan keselamatan kerja pada sistem bahan bakar tepatnya subsistem katup tabung gas dan ketiga bahaya kesehatan dan keselamatan kerja pada sistem kerangka kompor tepatnya pada sub sistem pan support. Saran yang diberikan kepada industri berskala kecil dan masyarakat pengguna kompor gas dua tungku adalah berperilaku aman dan selalu menjaga kondisi kompor agar tetap aman dengan memperhatikan hasil analisis bahaya yang telah dilakukan.

Scanning Electron Microscopy in Hybrid Microelectronics

1976 ◽  
Vol 34 ◽  
pp. 456-457
Author(s):  
S. Khadpe ◽  
R. Faryniak
Keyword(s):  
Integrated Circuits ◽  
Thick Film ◽  
Integrated Circuit ◽  
Failure Modes ◽  
Three Dimensional ◽  
Circuit Components ◽  
Hybrid Microcircuit ◽  
Electrical Connections ◽  
Scanning Electron

The Scanning Electron Microscope (SEM) is an important tool in Thick Film Hybrid Microcircuits Manufacturing because of its large depth of focus and three dimensional capability. This paper discusses some of the important areas in which the SEM is used to monitor process control and component failure modes during the various stages of manufacture of a typical hybrid microcircuit.Figure 1 shows a thick film hybrid microcircuit used in a Motorola Paging Receiver. The circuit consists of thick film resistors and conductors screened and fired on a ceramic (aluminum oxide) substrate. Two integrated circuit dice are bonded to the conductors by means of conductive epoxy and electrical connections from each integrated circuit to the substrate are made by ultrasonically bonding 1 mil aluminum wires from the die pads to appropriate conductor pads on the substrate. In addition to the integrated circuits and the resistors, the circuit includes seven chip capacitors soldered onto the substrate. Some of the important considerations involved in the selection and reliability aspects of the hybrid circuit components are: (a) the quality of the substrate; (b) the surface structure of the thick film conductors; (c) the metallization characteristics of the integrated circuit; and (d) the quality of the wire bond interconnections.

Human reliability in non-destructive inspections of nuclear power plant components: modeling and analysis

2019 ◽  
Vol 7 (2B) ◽  
Author(s):  
Vanderley Vasconcelos ◽  
Wellington Antonio Soares ◽  
Raissa Oliveira Marques ◽  
Silvério Ferreira Silva Jr ◽  
Amanda Laureano Raso
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Human Factors ◽  
Nuclear Power ◽  
Power Plants ◽  
Failure Modes ◽  
Cooling System ◽  
Human Reliability ◽  
Non Destructive ◽  
Plant Components

Non-destructive inspection (NDI) is one of the key elements in ensuring quality of engineering systems and their safe use. This inspection is a very complex task, during which the inspectors have to rely on their sensory, perceptual, cognitive, and motor skills. It requires high vigilance once it is often carried out on large components, over a long period of time, and in hostile environments and restriction of workplace. A successful NDI requires careful planning, choice of appropriate NDI methods and inspection procedures, as well as qualified and trained inspection personnel. A failure of NDI to detect critical defects in safety-related components of nuclear power plants, for instance, may lead to catastrophic consequences for workers, public and environment. Therefore, ensuring that NDI is reliable and capable of detecting all critical defects is of utmost importance. Despite increased use of automation in NDI, human inspectors, and thus human factors, still play an important role in NDI reliability. Human reliability is the probability of humans conducting specific tasks with satisfactory performance. Many techniques are suitable for modeling and analyzing human reliability in NDI of nuclear power plant components, such as FMEA (Failure Modes and Effects Analysis) and THERP (Technique for Human Error Rate Prediction). An example by using qualitative and quantitative assessesments with these two techniques to improve typical NDI of pipe segments of a core cooling system of a nuclear power plant, through acting on human factors issues, is presented.

Corrosion of Electronic and Magnetic Devices and Materials

1996 ◽  
Vol 451 ◽  
Author(s):  
Gerald S. Frankel
Keyword(s):  
Thin Film ◽  
Failure Modes ◽  
Galvanic Corrosion ◽  
Potential Drop ◽  
Magnetic Devices ◽  
Disk Structure ◽  
Magnetic Layers ◽  
Ohmic Potential Drop ◽  
Corrosion Problem ◽  
Corrosion Susceptibility

ABSTRACTCorrosion of thin film structures commonly used in electronic and magnetic devices is discussed. Typical failure modes are presented, and galvanic corrosion is discussed in some detail since it is one common problem with such devices. A graphical explanation for the determination of the ohmic potential drop during galvanic corrosion is presented. The corrosion problem of thin film disks is shown to have changed during the past ten years owing to changes in disk structure. The corrosion susceptibility of two antiferromagnetic alloys used for exchange coupling to soft magnetic layers is discussed.

Mechanics of Hybrid NanoComposites: The Carbon Nanotube/Graphene Effect into Failure Modes

2017 ◽  
Author(s):  
Suchilla Garcia Leão ◽  
Fernanda Luiza Rinco de Mendonça Lima ◽  
Marina Georgia Melo Martins ◽  
Nathalia Caroline Ferreira Menezes ◽  
Matheus Norton Mello ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Failure Modes ◽  
Hybrid Nanocomposites

Failure Analysis Case Study of a 1.5 Meter Space Flex Harness

2017 ◽  
Author(s):  
Erick Kim ◽  
Kamjou Mansour ◽  
Gil Garteiz ◽  
Javeck Verdugo ◽  
Ryan Ross ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Failure Modes ◽  
Field Of View ◽  
Area Of Interest ◽  
Air Stream ◽  
Novel Method ◽  
Temperature Controlled ◽  
Non Destructive ◽  
Failure Site

Abstract This paper presents the failure analysis on a 1.5m flex harness for a space flight instrument that exhibited two failure modes: global isolation resistances between all adjacent traces measured tens of milliohm and lower resistance on the order of 1 kiloohm was observed on several pins. It shows a novel method using a temperature controlled air stream while monitoring isolation resistance to identify a general area of interest of a low isolation resistance failure. The paper explains how isolation resistance measurements were taken and details the steps taken in both destructive and non-destructive analyses. In theory, infrared hotspot could have been completed along the length of the flex harness to locate the failure site. However, with a field of view of approximately 5 x 5 cm, this technique would have been time prohibitive.

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