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JOURNAL OF SCIENCE AND APPLIED ENGINEERING
Published by Universitas Widyagama
ISSN : 26213753     EISSN : 26213745     DOI : -
Core Subject : Science, Education, Social, Engineering,
Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Social Sciences Other
ournal of Science and Applied Engineering (JSAE) is an open access peer-review journal, and is aimed to disseminate original research in all fields of Electrical Engineering, Mechanical Engineering, Civil Engineering, Industrial Engineering and Informatics Engineering and presents the latest development and achievements in scientific research in Indonesia and overseas to the world’s community. Only original, innovative and novel papers will be considered for publication in the JSAE. The authors are required to confirm that their paper has not been submitted to any other journal in English or any other language. The JSAE welcome contributions from all who wishes to report on new developments and latest findings in science and applied engineering.
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Articles 5 Documents
 1 
Search results for , issue "Vol 2, No 2 (2019): JSAE" : 5 Documents clear
Leakage Detection In Pipeline Using Wavelength M.F Ghazali Ghazali; A K Samta
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 2, No 2 (2019): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1319.172 KB) | DOI: 10.31328/jsae.v2i2.1182

Abstract

Nowadays natural gas transport and distribution is a complex and currently growing and increasing. Natural gas produced from well need to transport in a great distance before reaching it point of use. The pipeline is designed to quickly and efficiently transport the gas from its origin to the high demand area. Either pipelines transportation for water supply or natural gas, leakage is unacceptable problem. Small leak along the pipeline is hard to detect. The objective of this study is to build the test rig galvanized iron and MDPE pipelines. Besides that, the main objective is to determine the leak detection in gas pipeline using wavelet-based filtering. . Main point of each journal is compared in order to determine the problems arise from the previous research. It is then follow by the methodology which will discuss further in this chapter. From methodology, it is known that the data taken can be analysing through Daisy Lab and Math lab software  Wavelet and cross correlation is used to analyse the signal in Matlab. From the result, it show that the leak can be identified based on the peak of amplitude of the signal. The result for galvanized iron pipe is not acceptable due to short pipeline length. Thus it can be concluded that leak can be determined using wavelet-based filtering. As the conclusions, the propose technique can be used to determine the leak in pipelines
Effect of Temperature, Time and Amount of Alkaline Treated Cotton Seaweed (ATS) Products Dried in a Dryer Oven on Product Quality Mochammad Masud; Mohammad Effendi; Miftachul Huda
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 2, No 2 (2019): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.846 KB) | DOI: 10.31328/jsae.v2i2.1185

Abstract

Eucheuma cottonii seaweed contains carrageenan, which is used as an ingredient for the food and beverage industry. This must be processed first by an alkaline process and then dried to become chips known as alkaline treated cotton chips (ATC) products. The process of drying seaweed was done using an oven dryer using heat energy that can be adjusted to the drying time, temperature and number of products so that the quality of the dried products of seaweed products that have been processed into Alkaline Treated Cotton Seaweed (ATS) to be used as an advanced product becomes ATC (Alkali Treated Cotton Chips). The results of this study aim to find out the optimal value of temperature, drying time and the amount of ATS to get output from ATC in accordance with SNI 8170: 2015 standard and received by the customer. Based on the results of the study, it was found that the minimum significant drying process for moisture content was 12.10% at level 2, 1 kg weight, level 2 temperature 70 oC with level 3 drying time 400 minutes. Whereas the maximum gel strength is 910 gram / cm2 at level 1, weight 0.5 kg, level 2 temperature 70 oC with level 2 drying time 320 minutes.
Caffeine as A Natural Corrosion Inhibitor for Mild Steel in Nacl Solution L.P. Xuan; M.A. Anwar; T. Kurniawan; H. M. Ayu; R. Daud; Y. P. Asmara
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 2, No 2 (2019): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (957.059 KB) | DOI: 10.31328/jsae.v2i2.1186

Abstract

Corrosion inhibitors are substances that added to the environment in small concentration and can effectively reduce the corrosion rate that of a metal surface. Natural inhibitors are one types of inhibitor being researched as it brings less environmental impact on the environment. This research was focused on the application of caffeine as inhibitor for corrosion of mild steel in seawater condition. The objective of this project was to develop the relationship between caffeine concentration on the corrosion of mild carbon steel in both static and moving solution contained 3.5-wt% NaCl. Three types of solution were prepared, which are NaCl without addition of caffeine, NaCl with 1-wt% of caffeine and NaCl with 2-wt% of caffeine. Corrosion testing was carried out by weight loss measurement. The microstructures of corroded mild steel specimens were observed under optical microscope. The experimental results indicated that by adding caffeine into the environment medium, weight loss of mild steel specimen was reduced. The corrosion rate of specimens was decreased when more caffeine was added to the environment. From optical microscopic observation, caffeine performed its inhibition effect likely by forming a protective layer which acts as barrier to prevent further corrosion of mild steel in NaCl solution.
Design of Low Flow Undershot Type Water Turbine E. Y. Setyawan; S. Djiwo; D. H. Praswanto; P Suwandono; P. Siagian
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 2, No 2 (2019): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (592.043 KB) | DOI: 10.31328/jsae.v2i2.1184

Abstract

Many water sources around us which have kinetic energy to run waterwheels are not optimally utilized. This energy can be converted into an energy source that can produce electricity. Therefore this study produced a design of a waterwheel that could be used in low-flow rivers to produce electricity by adding generators. Waterwheel modeling using Ansys is calculated based on flow assumptions. Modeling using this system provides advantages in the form of computational power efficiency, the stability of numerical calculations and the accuracy of the resulting solutions. Numerical analysis of the waterwheel is assumed that the waterwheel is half floating on the surface of the water. As stated in the limitation of the problem that the incoming water flowing at a speed of 5 m/s from the flow moves the wheel. The flow rate of water that hit the blade on the waterwheel causes the waterwheel to rotate which is pressured by the flow of water with a number of 12 blades. With a relatively simple design, the waterwheel produces a wheel rotation I of 91 Rpm and II of 78 Rpm, with a torque of 39.2 N by using some analysis of this design can be applied to river flow with low flow velocity. The relatively simple design makes it easy to be produced and maintenance. River flow used is in the Malang District with a flow velocity of 1 m/s gets a power of 1128 W on waterwheel I while on waterwheel II gets a power of 967 W.
Design Lighting Quality Based on DIALux Evo 8.1 R. Febriyursandi; A.Z. Azriyenni; A. Hamzah
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 2, No 2 (2019): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (589.483 KB) | DOI: 10.31328/jsae.v2i2.1183

Abstract

This research develops and implements methods for calculating lighting systems for classrooms in the Khairul Ummah Boarding School. The lumen is used to determine the number of luminaires needed to improve lighting quality following SNI 6197:2011. The number of luminaires obtained from this study was entered into the DIALux Evo 8.1 software. The results obtained of this study indicate that the lighting in the classroom at Khairul Ummah Boarding School didn’t reach the recommended standard, the direct measurement results of the average lighting level of class A was 10.79 lux, while the class X-IPA-3 was 11.66 lux. To improve this condition, class A requires 15 luminaires, and X-IPA-3 requires 12 luminaires. The difference in the results obtained from the two calculations for class A is 0.6%, and X-IPA-3 is 3.4%. Investment costs are needed to improve the lighting system in these classes worth Rp.2,700,000.00 to provide 27 lamps.

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