Article Per Year (5 Year)
p-Index From 2020 - 2025
2.177
P-Index
This Author published in this journals
All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Jurnal Abdi Insani DWIJENAGRO: JURNAL ILMIAH Jurnal Karya Pengabdian Teknik Mesin Energy, Materials and Product design JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Made Wijana, Made
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Social Sciences

Published : 21 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search
Journal : Energy, Materials and Product design

 1 
ANALISA KELAYAKAN BEJANA BERTEKANAN TIPE VERTIKAL DENGAN MENGGUNAKAN SIMULASI AUTODESK INVENTOR Yudhyadi, I G.N.K.; Rachmanto, Tri; Suartika, I Made; Wijana, Made; Fahrurrozi
Energy, Materials and Product Design Vol. 1 No. 1 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The minimum thickness of vertical type pressure vessel of column type distillation, must be planned in accordance with the recommended code of ASME (The American Society of Mechanical Engineering) VIII Div 1. Based on this code, the study aims to determine the feasibility of a pressure vessel that used by PT Pertamina (Persero). For this reason, and to be able to use this ASME code, various data was needed, especially the data sheets and some required data from the field. Based on the data that has been collected, it is then processed and was made a 3D modeling and was simulated using Autodesk Inventor software to test its feasibility. Based on the results of the study, the minimum thickness was obtained, namely head 13.66 mm, shell 13.69 mm, and skirt 3.47 mm, respectively. Taking into account the availability of materials on the market, namely SA-516 Grade 70, the recommended thickness of the head and shell sections was 14 and 5 mm, respectively. From the results of the safety analysis, it was found that at the stress of 0.217, 0.197, 0.196, and 0.195 MPa, the Von Mises stress that occurred ware 0.249; 0.226, 0.225 and 0.224 MPa. From these data, based on the distortion energy failure theory, the head and shell materials which have yield strength of 260 MPa can be categorized as very safe because it does not exceed the yield strength of the material used.
EVALUATION OF WASTE FACILITY NEEDS BASED ON THE EXISTING POSITION AND THE AMOUNT OF WASTE VOLUME IN JEMPONG BARU-MATARAM VILLAGE Wijana, Made; Suartika, I Made; Joniarta, I Wayan
Energy, Materials and Product Design Vol. 1 No. 2 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

An increase in the volume of waste if it is not accompanied by good management, will certainly have a bad impact on reducing the quality of the environment. In Jempong Baru village which has a population of 17,172 people, but currently only has 1 TPS located in the east Jempong neighborhood which has an area of 36 m3 with a capacity of 72 m3 and 1 damtruck with a capacity of 7 m3, which should be insufficient facilities, but in fact there is no garbage overflowing out of the TPS. For this reason, it is necessary to further study the current real condition (existing position) compared to the condition if all villages dispose of waste at the TPS in the environment of the research site (alternative position), in terms of the size of the volume of waste and the number of minimal waste facilities needed. The result of this study is that a dumptruck with a capacity of 7 m3 is able to transport waste from the TPS to the landfill, which is as much as 3 times / day (3 irritations). The total amount of waste generated in Jempong Baru Village in the existing position is 28.97 m3 / day and in the alternative position of 121.47 m3 / day. In the existing position, 1 TPS with a capacity of 72 m3 and 1 dumptruck with a capacity of 21m3 / day are sufficient. Meanwhile, in the alternative position, the facilities needed to handle the volume of waste as much as 121.47 m3 / day are at least 1 TPS and 6 dumptrucks
ANALISIS PENERAPAN KONSEP ERGONOMI UNTUK MENDESAIN MESIN POTONG KULIT KERANG MUTIARA Joniarta, I Wayan; Wijana, Made; Chatur Adi W.A., I G.A.K.; Bawa Susana , I Gede; Suartika , I Made
Energy, Materials and Product Design Vol. 1 No. 2 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The application of the concept of ergonomics is carried out on seashell craft work facilities because the work facilities used are not in accordance with the principles and norms of ergonomics feasibility. The research objective is the redesign of cutting machines and work chairs based on various kinds of information related to human factors which include designing tools and work facilities that are more effective, safe, comfortable, healthy, and efficient (ENASE). Some of the ergonomic parameters that are used as references include aspects of anthropometry, human physical performance, effectiveness-efficiency, work productivity, and the subjectivity of complaints of body pain as a result of inappropriate positions and workloads. In this study, 1 unit of circular model of shell cutting machine was designed and 1 unit of chair / seat. With anthropometric measurements of employees and through ergonomic calculations using the 5th percentile, the dimensions of the work table (cutting table) were obtained, the size of the table height was 87, 9 cm long table 110 cm and table width 64.3 cm. Then the dimensions of the chair are also obtained as follows: seat base height 32.7 cm Chair base length 70.6 cm Chair base width 32.1 cm chair back height 56.8 cm cm, seat back width 44.5 cm After applying the principles of ergonomics, based on the results of the Nordic Body Map questionnaire, it was found that the application of ergonomic principles to work tools for clam shell workers resulted in a 128% decrease in musculoskeletal complaints. In addition to this, it also resulted in a decrease in fatigue levels of 103%. . This shows that the application of ergonomic principles has a positive impact on employees
ANALISA USAHA LAUNDRY (HOOP LAUNDRY) DI KOTA MATARAM DENGAN METODE BREAK EVEN POINT (BEP) Wijana, Made; Wirya A., I.G.A.K. Chatur Adhi; Boli, B.V.S.
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Laundry is a business in the field of clothes washing services where dirty clothes are processed until clean and ready to distributed, this business is very promising because of the high level of demand for this service. Therefore, business actors in this field, namely Hoop Laundry, to continue to develop, must be supported by maximum profits by doing profit planning to find out whether this business is profitable or not.To plan profit, a tool is needed, one of which is the determination of the break- even point. In profit planning, break even point analysis is a profit planning approach that is based on the relationship between costs and income.The results of this study, it is known that the average number of kg of laundry per month produced is 1,702.52 kg with a Fixed Cost (FC) of Rp. 25,510,500 and Variable Cost (VC) of Rp. 61,828,852.5. From the laundry price per kg (p) which is IDR 6,000 the number of kg of laundry produced to reach the Break Even Point (BEP) condition is12,984 kg of laundry with a time of 7.6 months where the total expenses (TC) are equal to the total income (TR) which is IDR 77,902,498
ANALISA PERFORMA HEAT EXCHANGER TIPE SHELL AND TUBE PADA PROSES PENDINGINAN PELUMAS SAG MILL DI AREA GRINDING CONCENTRATOR AREA 130 PT. AMMAN MINERAL NUSA TENGGARA Joniarta, I Wayan; Santosa, Wahyudi; Wijana, Made
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In the industrial world, the use of heat exchanger has an important role in helping the production process, especially in PT. Amman Mineral Nusa Tengggara. Heat exchanger which is used in various production process installations is basically a place to exchange energy in the from of heat from one fluid source to another. In the operation of a heat exchanger on a Semi Autogenous (SAG) mill this process is called oil conditioning, namely oil conditioning involving cooling and filtration in oil to coll the lubricant on the bearing SAG mill. This shell and tube type heat exchanger greatly influences the entire set of processes, because the operation caused by mechanical or operational failure can stop the operation of the unit. In this study do a comparison between the design specifications with the results of observations in the field in the morning and evening. Observations for 5 times were then analyzed using heat transfer to determine thermal load, heat transfer rate, heat transfer coefficient, LMTD, TDC. The results of these calculations can show that the heat exchanger in the morning has better performance. This is evident from its high effectiveness in the morning. However, the heat exchanger damages the leakage of the tube resulting in the mixing of oil with water and impurities from the cooling water quality from poor water flow can cause a decrease in performance on the heat exchanger.
ANALISIS EFISIENSI POMPA SENTRIFUGAL PADA DESALINASI DENGAN PROSES REVERSE OSMOSIS: ANALYSIS OF CENTRIFUGAL PUMP EFFICIENCY IN DESALINATION WITH THE REVERSE OSMOSIS PROCESS Joniarta, I Wayan; Aprilian Dika, Ade; Wijana, Made
Energy, Materials and Product Design Vol. 3 No. 2 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study provides information for the desalination industry in an effort to improve the performance and efficiency of desalination systems using the reverse osmosis method. By paying attention to the factors that influence the efficiency of centrifugal pumps, the provision of clean water in areas experiencing a water crisis will be better. Reverse Osmosis (RO) is a system in desalination technology that is often used to replenish fresh water supplies. RO performance depends on the quality of sea water as the raw water source. RO works by utilizing osmotic pressure. Hydrostatic pressure which is greater than osmotic pressure is used to reverse the flow, thereby producing fresh water. RO utilizes a high-pressure pump process to flow seawater through a membrane polymer structure. In RO there is a main membrane module configuration which has two functions, namely supporting the performance of the RO membrane and providing efficient fluid management. The desalination system used at PT Perusahaan Air Indonesia America (PAIA) still uses centrifugal pumps and can produce a production capacity of 600-700 m3/day, and is still in the system upgrade stage. From the calculations that have been carried out, the pump efficiency value is 59.16%.
PENGARUH VARIASI BENTUK BRIKET ARANG BIOMASSA BERBAHAN LIMBAH KAYU TERHADAP NILAI KALOR DAN BOILING TIME : THE EFFECT OF VARIATIONS IN THE SHAPE OF BIOMASS CHARCOAL BRIQUETTES MADE FROM WOOD WASTE ON CALORIFIC VALUE AND BOILING TIME Usman, Zohimundin; Joniarta, I Wayan; Wijana, Made; Wiratama, I Kade
Energy, Materials and Product Design Vol. 4 No. 1 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v4i1.6805

Abstract

Most Indonesian people currently use energy derived from fossil fuels, such as fuel oil, gas and coal. The impact of using fossil fuels is that it can damage the environment. Several alternative energy sources that are commonly developed are biomass energy. This biomass is usually processed into biochar which is a fuel with a high calorific value and can be used in everyday life. Briquettes are an energy source derived from biomass which can be used as alternative energy. In this study, briquettes were made from teak, acacia and mahogany wood waste. The method used is an experiment with the carbonization process using a modified composing drum. The independent variables used were briquette materials from teak, acacia and mahogany wood waste, variations in the shape of cube, cylindrical and hexagonal jerry cans. Tests include analysis of water content, calorific value, and changes in temperature. The results of this study showed that the best moisture content was obtained from cylindrical teak wood waste briquettes with an average value of 3.57%. Then for the calorific value, the best results were obtained from cylindrical teak wood waste briquettes with a value of 3457.0 Kkal/kg. and for temperature changes the best results were obtained on the cube-shaped mahogany wood waste briquette specimens with an average value of 10 minutes 46 seconds.
Co-Authors A.A. Alit Triadi, A.A. Alit AA Alit Triadi, AA Alit Agus Dwi Catur Aprilian Dika, Ade Bawa Susana , I Gede Boli, B.V.S. Chatur Adi W.A., I G.A.K. Emmy Dyah Sulistyowati, Emmy Dyah Fahrurrozi Firza Febriandi, Firza Gawahi, Fransiskus Risky I G.N.K. Yudhyadi, I G.N.K. I Kade Wiratama, I Kade I Made Nuarsa, I Made I Made Suartika I Nyoman Nugraha Ardana Putra I Wayan Darmadi I Wayan Joniarta Julidio, Alief Kaliwantoro, Nur Kurnia, Fikrihadi Made Nuarsa, Made Made Suartika Marungkil Pasaribu Muhamad Sudrajadinata, Muhamad Muhammad Khoiliq, Muhammad N. Nurchayati, N. Nurchayati Nurchayati Pradityatama, Maharsa Putra, Ardi Wijaya Ramadhan, Galang Baruna Rohil, Lalu M. Santosa, Wahyudi Suartika , I Made Tri Rachmanto, Tri Triadi, Anak Agung Alit Usman, Zohimundin Wirya A., I.G.A.K. Chatur Adhi