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Journal of Mechanical and Manufacture
Published by Universitas Majalengka
ISSN : -     EISSN : 28294424     DOI : -
Core Subject : Engineering,
Aerospace Engineering Automotive Engineering Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Journal Of Mechanical And Manufacture (JMM) published 2 (two) times a year . Since 2022, the JMM published in March and September . Contents of the journal discusses the results of research in the field of manufacture engineering, industrial engineering and mechanical engineering
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 14 Documents
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Search results for , issue "Vol 2 No 1 (2022)" : 14 Documents clear
COMMISIONING AND FAT HVAC FOR OFFSHORE ON THE KLA FLOW STATION Firdaus, Yusup; Koswara, Engkos
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

HVAC stands for Heating Ventilation Air Conditioning, in the industrial world it is very necessary to condition a room according to its needs, it can be used to regulate a room or freeze a product, the selection of HVAC materials for Offshore is very important so that the unit lasts a long time and does not rust easily. The importance of selecting materials that are in accordance with the provisions in terms of safety, function and quality, materials that are easy to obtain, sizes according to calculations, aesthetics, and materials that are not easy to rust. commissioning is done because to determine the quality and function of the HVAC unit whether it is in accordance with the design, function or calculation
ANALYSIS OF CUSTOMER SATISFACTION ON THE QUALITY OF PURPLE PATTOM CRUISER USING IMPORTANCE PERFORMANCE ANALYSIS (IPA) METHOD Whydiantoro, Whydiantoro; Budiman, Budiman; Koswara, Engkos; Kusumadewi, Intan
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

Following up on PKM on purple sweet potato crackers in Padahanten village and seeing the current very rapid development of the service business, with the growth of the service business in Indonesia this has resulted in higher competition, consumers are more selective in buying and choosing the products they need. Therefore, purple sweet potato chips must be able to meet consumer needs. Products that are able to win the competition with competitors need a strategy that can improve services and be able to compete effectively in this increasingly competitive market. Win the competition and keep the business alive, growing and getting as many customers as possible. This can be said to be successful if consumers are satisfied with the performance of a product or service provided by the entrepreneur. According to Lewis & Booms, in Service Management by Fandy Tjiptono (2016) Service quality is defined as a measure of how large the level of service that can be provided in accordance with the level of consumer expectations. In other words, the factors that affect the quality of service are the services expected by consumers, if the service exceeds what is expected by consumers, the quality of service can be said to be good (positive), and vice versa if the service is not in accordance with what is expected by consumers, it can be said that the quality of service is bad. (negative value) Quadrant analysis or Importance Performance Analysis (IPA) is a descriptive analysis technique introduced by John A. Martilla and John C. James (1977) cited by Tjiptono and Chandra (2016: 222-223). Importance Performance Analysis (IPA) is an analytical technique used to identify what important performance factors must be demonstrated by an organization in meeting the satisfaction of their service users (consumers). Therefore, it is necessary to conduct research on the analysis of consumer satisfaction on the quality of service in the marketing of purple sweet potato crackers by using the Importance Performance Analysis (IPA) method. and promotions. Through these (4P's) attributes, it will be known what influences consumers' desire to visit Padahanten purple sweet potato. The variables that are traced or researched are aspects of reliability (reliability), responsiveness (response), tangible (tangible), assurances (certainty), and empathy (empathy).
ANALYSIS OF STEAM POWER PLANT RANKINE CYCLE EFFICIENCY ANALYSIS AT PT. PG RAJAWALI II JATITUJUH UNIT Zauhari, Azi; Koswara, Engkos; Rachmat, Asep
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

Rankine cycle efficiency and rankine cycle work process at PT. PG Rajawali II Jati Tujuh Unit Adding knowledge to students about Rankine cycle in steam power generation system. To determine efficiency based on operational data. To know and understand the process of the Rankine cycle. It can be a reference and input for PT, PG Rajawali II Unit Jati Tujuh to see its efficiency. Before going into the field, we must prepare our theory according to the title such as boiler, turbine, condenser, pump example. This is a direct observation of the conditions at PT. PG Rajawali II Unit Jati Tujuh. This step is carried out to find out information about the conditions in the field and the situation where the practical work is carried out. Fractional pressure will not occur in the boiler and condenser, if the working fluid flows through the various components of a simple steam power cycle without irreversibility, and the working fluid will flow through the components at constant pressure. Dry water vapor from the boiler enters the turbine and undergoes a process isentropic expansion of the energy stored in the water vapor is converted into motion energy in the turbine. The water vapor is converted into liquid again so that it can be reused in the cycle process, PT. PG Rajawali II Unit Jati Tujuh on October 11, 2020 had the highest efficiency of 25.20%. October 22, 2020 has the lowest efficiency, which is 22.99%. Before going to the work process of the Rankine cycle, we must really understand the components related to the Rankine cycle, starting from the boiler, turbine, condenser, and pump so that we can understand and understand what the Rankine cycle is. In processing data using a help system, namely with Microsoft Excel with engineering applications, we have to ask those who know better so that in processing data with Microsoft Excel it can be actually clear in calculating it to get the values of pressure and temperature and their efficiency.
PROCESS FOR MAKING TURBINE PROPELLER SHAFT USING ST.37 LOW CARBON STEEL MATERIALS AT THE INDONESIAN INSTITUTE OF KNOWLEDGE (LIPI) Fajri Hamdani, Mohamad; Dewi Jannati, Eidelweis
Jurnal Mekanika dan Manufaktur Vol 2 No 1 (2022)
Publisher : Universitas Majalengka

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Abstract

The shaft is a rotating stationary member, usually spherical in cross section, the shaft may receive bending loads, tensile loads, compressive loads or torsional loads acting alone or in combination with one another. The propeller turbine shaft is made using a conventional lathe from the Indonesian Institute of Sciences (LIPI). The shafts made have stratified diameters with diameters of 8 mm, 10 mm, 15 mm and 24 mm with an overall length of 595 mm and has a thread in one part of the shaft. The axle uses ST.37 material, dural rod material and for the outside of the shaft (casing) using aluminum. Dural is a high strength aluminum based alloy with the addition of copper, magnesium and manganese.

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