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All Journal Jurnal Teknik Industri Wacana Akademika : Majalah Ilmiah Kependidikan Scientific Contributions Oil and Gas
M Mulyono
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Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Industrial & Manufacturing Engineering

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Kurikulum Pendidikan Matematika di Indonesia dan Perancis Setiyani Setiyani; Iwan Junedi; M Mulyono
WACANA AKADEMIKA: Majalah Ilmiah Kependidikan Vol 5 No 2 (2021)
Publisher : Universitas Sarjanawiyata Tamansiswa

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Abstract

The education curriculum of a country always changes periodically as a form of changing times, external and internal challenges. The curriculum is a set of rules that contain guidelines in achieving learning objectives. The quality of a nation's education is determined by the effectiveness of the curriculum that has been prepared and implemented. The purpose of this article is to find out how the curriculum trends in developed countries are represented by France and the curriculum in developing countries, namely Indonesia. The aspect that is the focus of this article is the learning of mathematics in these two countries. Based on the results of the literature review, information is obtained that there are some similarities between the two countries, such as the level of education and mathematics textbooks that focus on student activities. Some of the differences can be seen from the competency standards of graduates, the National Examination, and the objectives of learning mathematics.
Optimasi Rongga Terhadap Variasi Derajat Kevakuman Sebagai Isolator M Mulyono
Jurnal Teknik Industri Vol. 11 No. 1 (2010): Februari
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (566.87 KB) | DOI: 10.22219/JTIUMM.Vol11.No1.63-67

Abstract

In the world of industry, insulation materials are often utilized to maintain the temperature, either low or high. However, since the insulation materials often need to be thick, thus, costly, they are frequently deemed impractical. Therefore, in the attempt to replace the insulation materials, a cavity with low vacuum pressure is opted for. Yet, to attain a total (100%) airfree cavity is not an easy task. Such, the cavity usually still bears some amount of air pressure which results in natural heat convection through the two surfaces making up the cavity. The transfer coefficient of natural heat convection (h) is influenced by some factors, such as, the temperature difference, geometry of the cavity, cavity orientation, and characteristics of the fluid, for instance, its pressure, temperature, conductivity, specific gravity (density), and viscosity. The purpose of the study is to find answers to the following question: “How do vacuum pressure variation and cavity ratio affect the rate of natural heat convection through the a cavity?” Pertinent to the question, the study was aimed to find the appropriate value of the vacuum pressurewhich can function well as an insulator. This study is significant in the attempt to lower down the rate of heat transfer taking place in a system vis-à-vis the surrounding media. The study found out that the degree of emptiness of -60 cm Hg and =5.96, results in a lower rate of heat transfer compared with -20 cm Hg and -40 cm Hg. This means that the vacuum pressure of -60cm Hg bears a bigger thermal resistance than the -20 cm Hg and -40 cm Hg do.
STUDY ON FLARING SYSTEM FOR SOUR GASES IN OIL FIELDS IN INDONESIA R. Desrina; Supriyadi Supriyadi; Aziz M Lubad; M Mulyono
Scientific Contributions Oil and Gas Vol 30 No 2 (2007)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/SCOG.30.2.981

Abstract

Many of the oil fields in East Java, Indonesia, are known to contain sulfur in amountssufficiently high that the crude oil or the associated gases are considered sour. The sourgases have to be handled accordingly in order to prevent the workers and the surroundingcommunities suffering from the toxic gas.The flaring system for disposing of the sour gases normally applied in oil fields inIndonesia has been evaluated in this study. Flare Stacks typically attempt to convert hydrogensulfide (H2S) in sour gas streams into sulfur dioxide (SO2) and water. The amount ofSO2 emitted does not solely depend on the H2S content of the gas, but also on the internalphysical factors, such as flare gas flow rate, flare gas heat content, flare gas exit velocity,and external factors such as cross wind velocity.This study focuses on the evaluation of the influence of the physical factors, especiallyflare gas flow rate and wind velocity, on SO2 emission. In order to comply with the regulationthe study also attempts to search the Government of Indonesia Regulations which aresuitable for this purpose.
Co-Authors Aziz M Lubad Iwan Junedi R. Desrina Setiyani Supriyadi Supriyadi