Garuda - Garba Rujukan Digital

M. Wijana

Unknown Affiliation

Author-ID : 2460134

Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

Published : 3 Documents Claim Missing Document

Claim Missing Document

Articles

1

Pengaruh variasi campuran bahan bakar tongkol jagung dan tempurung kelapa terhadap unjuk kerja tungku biomassa I.W. Joniarta; M. Wijana; A.A. Alit Triadi; I.B.K.T.H. Iswara; I.G.A.K.C. Adhi
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 8, No 2 (2018): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Agricultural waste such as corn cobs and coconut shell can be used as alternative energy. Biomass as an alternative energy can be used as a fuel in the furnace. Corncob has low calorific value and density, so it is necessary to examine the combination’s effect of corn cobs and coconut shell toward the performances of biomass furnace.The gasification furnace was the development of a furnace design on previous research. Diameter of combustion chamber is 25 cm, diameter of free air duct and secondary air duct is 2 cm, and primary air duct is 1 cm. Combined corncob and coconut shell in sequence are 100%: 0%, 80%: 20%, 60%: 40%, 40%: 60%, 20%: 80%, 0%: 100%. Investigated parameters showing the furnace performance were boiling time, FCR, power input, power output, power loss and efficiency are boiling time, FCR, operating time, power input, power output, power loss and efficiency. Test of operating time were conducted by burning fuel until burned out. Then boiling time test were conducted by heated 1 liters water from ambient temperature to boiling (between 95oC - 97oC) on a 24 cm diameter pan.The results showed that the largest operating time (1317.33 Seconds), smallest FCR (2.249 Kg/hour), smallest power loss (19.532 kW), and the highest efficiency (8.19%) obtained at 0% : 100% combination. The fastest boiling time (157 Seconds) and the largest power output (1.828 kW) was obtained at 40%: 60% combination. While the largest power input (29.286 kW) was obtained at 60%: 40%.

Studi kelayakan proses pembubutan penekan kopling sepeda motor dengan mesin boxford cnc menggunakan pendekatan statistical process control I GNK. Yudhyadi; M. Wijana; I Ketut Sedana Yasa; I Made Adi Sayoga
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 7, No 1 (2017): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Now days, a company has been experiencing and facing a tight competitive siege. To be surviving within this competition, the company must be creative in developing new and robust ideas to improve their business competitiveness which differentiate them from the others. The product quality was the main issues among others. The quality of a product that offered to the consumers must be cheap and have met with consumer satisfaction. Exploring these ideas, current research has conducted with the main goal was investigating the quality of product produced on CNC Turning. The quality was calculated with a Statistical Process Control (SPC) analysis. Meanwhile, ductile iron workpieces size of 130 mm in length and 19 mm in diameter were manufactured for the samples. The data gathered including diameter, length, and thickness of the samples measured with Digital Vernier Caliper and Micrometer. Based on data observed, the result of experiment shows that the quality of sample products produced in single run (12 products) has met with basic standard requirement with which all samples dimension was lay inside the control limit (Upper and Lower Control Limit (UCL and LCL). It can be concluded that each variable still in process control and was ready for the automation.

Pengaruh variasi besar lubang dan tebal plat terhadap boiling time, lama nyala dan laju pembakaran pada desain kompor biomassa tongkol jagung I.W. Joniarta; M. Wijana
Dinamika Teknik Mesin Vol 8, No 1 (2018): Dinamika Teknik Mesin
Publisher : Universitas Mataram

The biomass stove is designed to utilize fuel chunks. The main principle of the stove design is to utilize the outside air coming into the stove through the hole on the underside. The air coming into the stove is divided becoming primary air and secondary air. The primary air enters from under the burning sleeve to the fuel, while the secondary air enters from the top hole of the burning sleeve and burns the combustion gas containing fuel-burning substances. In this study, the fuel used was corncob with a diameter of 3-4 cm, a length of 6-7 cm, and moisture contents ranging from 14%-16%. The stove used consists of 8 variations of the design model. Independent variables in this study were plate thickness, outer air hole diameter, secondary air hole diameter, and primary air hole diameter. While the dependent variables investigated were boiling time and flaming duration. The fastest boiling time was 2.07 minutes achieved from the stove designed no 3. Meanwhile, The longest flaming duration was 13.24 minutes shown by the stove no 6. There for the fastest burning rate was 0,00708 kg/s was sown stove designed no 6, and the latest burning rate was 0,00474 kg/s achieved from the stove no 6. This different result is influenced by the density of the corncobe, the density of the biomass fuel will be quikly burned and very fast oxidation.

Title

Found 3 Documents
Search

Abstract

Abstract

Abstract

Title Search

Found 3 Documents Search

Abstract

Abstract

Abstract

Title

Found 3 Documents
Search