Journal of Vocational Studies on Applied Research最新文献_第4页

Reliability Analysis of Diesel Engine at LNG Plant using Counting Process 用计数法分析LNG厂柴油机可靠性

Journal of Vocational Studies on Applied Research Pub Date : 2019-11-25 DOI: 10.14710/jvsar.v1i2.4368

S. Darmanto, I. S. Atmanto, Bagus Hendra Permana

{"title":"Reliability Analysis of Diesel Engine at LNG Plant using Counting Process","authors":"S. Darmanto, I. S. Atmanto, Bagus Hendra Permana","doi":"10.14710/jvsar.v1i2.4368","DOIUrl":"https://doi.org/10.14710/jvsar.v1i2.4368","url":null,"abstract":"The purpose of this research is to analyze the reliability of diesel engine as driver for fire water pump. To determine the reliability level of the diesel engine, this research will apply counting process so that the rate of failure of the diesel engine can be known. The data used as basis for calculation is failure data gained from maintenance work order databases from 2012 to 2017. The data obtained will be processed using counting process method to produce mathematical modeling to predict the amount of failure to diesel engines in the future. From 4 diesel engines, only 3 parametric failure rate (l) that could be generated, for 33-GE-5A, for 33-GE-5B, and for 33-GE-5C, since 33-GE-5D was severely damaged in September 2015. The mathematical modeling will be verified using the Pearson's Chi-squared Test method to ensure the validity of the mathematical model can be guaranteed. The result of the goodness of fit test shows that only parametric failure rate (l) for 33-GE-5B and 33-GE-5C that could be accepted. The outcome mathematical model will be used to predict future behavior and failure of the unit so effective and efficient maintenance strategy for 33-GE-5B and 33-GE-5C could be applied","PeriodicalId":170738,"journal":{"name":"Journal of Vocational Studies on Applied Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129911584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Design of Blowdown Line LNG Filling Station ISO Tank 排污线LNG加气站ISO罐设计

Journal of Vocational Studies on Applied Research Pub Date : 2019-11-25 DOI: 10.14710/jvsar.v1i2.4805

Wahyuddin Wahyuddin

{"title":"Design of Blowdown Line LNG Filling Station ISO Tank","authors":"Wahyuddin Wahyuddin","doi":"10.14710/jvsar.v1i2.4805","DOIUrl":"https://doi.org/10.14710/jvsar.v1i2.4805","url":null,"abstract":"LNG (Liquid Natural Gas) is a liquefied natural gas, with composition of 87% - 96% methane, 1,8-5,1% ethan, 0,1-5,1% propane and other compounds. The composition of natural gas (LNG formation) varies depending on the source and the process of its formation. Methane gas in LNG has odorless, non-corrosive and non-toxic properties (Air Products, 1999). LNG is basically an alternative method to deliver gas from producer to consumer. When cooled to -162˚C at 1 atm pressure, natural gas becomes liquid and its volume decreases up to 600 times (Handbook of Liquefied Natural Gas, 2014). With such a large volume reduction, liquefied natural gas (LNG) can be transported through the Tanker Ship and the ISO Tank Truck. PT Badak NGL has 3 (Three) T.U.K.S (Terminal For Ownership) As Tanker Ship Facilities and 1 (One) LNG Filling Station as a means of filling LNG to ISO Tank. Development of business process of PT. Badak NGL leads to an increase in LNG filling Station capacity. Along with the plan to increase the filling station capacity, the problem of BOG (Blow of Gas) wastage along with some LNG to ground flare becomes a serious concern. When the number of fillling stations is only 1 (one) station, the BOG wasted condition is not significant. However, with plans to increase the number of filling stations, BOG wasted need to be considered to be fully utilized. Therefore, there is a thought to utilize BOG to become more economic value, through the design of blowdown line on LNG ISO Tank filling station. In the Design of this line Blowdown, Using Pipe Ø2 \"(PIPE BE 40S SS A312-TP305 SMLS) interconnecting with Pipe Ø6\" (PIPE BE 40S SS A312-TP305 SMLS) BOG Header of new Filling Station under construction (Beginning January 2018 ).","PeriodicalId":170738,"journal":{"name":"Journal of Vocational Studies on Applied Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131075777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Economic Factor on the In Situ Vanillin Enzymatic Formation from the Green Pods Vanilla 绿荚香草原位酶法合成香兰素的经济因素

Journal of Vocational Studies on Applied Research Pub Date : 2019-01-28 DOI: 10.14710/jvsar.v1i1.4294

I. Hartati, P. R. Ardi, Muhammad Milzam, V. Paramita

引用次数: 1

Credit Transfer System (CTS) Design in Academic Information System of Diponegoro University 迪波内戈罗大学学术信息系统中的学分转换系统设计

Journal of Vocational Studies on Applied Research Pub Date : 2019-01-28 DOI: 10.14710/jvsar.v1i1.4293

A. Subari, Adnan Fauzi

引用次数: 0