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Journal of Research and Technology

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Published by Universitas NU Sidoarjo

ISSN : 24605972 EISSN : 24776165 DOI : -

Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering

Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.

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Articles 454 Documents

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PENGARUH WAKTU DAN TEMPERATUR HIDROLISIS DALAM PROSES SINTESIS FURFURAL DARI SEKAM PADI DENGAN MENGGUNAKAN METODE HIDROLISIS DAN DEHIDRASI Cindi Amborowati; Uni Adriani; Indah Lukyta Aditya; Hanifati Feviasari; Tidar Kumala Hastin; Arief Adhiksana
Journal of Research and Technology Vol. 2 No. 2 (2016): JRT Volume 2 No 2 Des 2016
Publisher : 2477 - 6165

Rice fields in East Kalimantan is one of productive land. It looks from many piles of rice husk waste in rice milling. The rice husk waste has not been used much, so this research used the rice husk waste as raw material of furfural manufacturing. This research has three stages, there are raw material preparation, hydrolysis, and product analysis. At the preparation stage, rice husk is diminished to 100 mesh, then dried in oven. Hydrolysis process used sulfuric acid 1% as catalyst with the variation times were 10, 40, 70, 100, 130 (minutes) and temperature are 30, 50, 70, 90, 105 (°C). Then hydrolysis result was filtered and the filtrate was quantitatively analyzed by volumetric method. Highest result of time variation obtained was at 130 minutes with furfural concentration as much 8,182 mol/L, while highest result of temperature variation obtained was at 105 °C with furfural concentration as much 10,741 mol/L. Keywords: Sulfuric Acid, Furfural, Hydrolysis, Rice Husk.

PENGEMBANGAN PRODUK LAMPU MEJA BELAJAR DENGAN METODE KANO DAN QUALITY FUNCTION DEPLOYMENT (QFD) Aji, Edy Rustam; Yuliawati, Evi
Journal of Research and Technology Vol. 2 No. 2 (2016): JRT Volume 2 No 2 Des 2016
Publisher : 2477 - 6165

The demand for students, college students or office workers to do their study and work require them to sit longer in their study or work place. The place of study must be designed in order to be comfortable, ergonomic, and has aesthetics touches. Study lamp is one of important aspects in study place. Study lamp desi gn has improved in its aspects and function. However, along with its improvement, there are demands of additional function to the existing designs. On that account, this research aims to design and produce the desk lamp with additional functions according to users’ requirement. To realize this aim, Kano and Quality Function Deployment (QFD) methods are applied. The calculation result showed 12 attributes (customer requirements ) and 10 technical parameter priorities were implemented in the design of desk lamp product. The additional functions of this desk lamp are alternating automatic power off between the desk lamp and night lamp whenever one of the lamp not in use, flip design, digital clock, fan, night lamp, cellular phone charger, stationary case, and ability tostay on during the electricity black out. Keywords: Desk Lamp, Kano, Quality Function Deployment (QFD).

ANALISA FAKTOR-FAKTOR YANG MEMPENGARUHI KEPUASAN KERJA KARYAWAN DI PT SURYAGITA NUSARAYA DENGAN METODE REGRESI LINIER BERGANDA Musahidin, Fayakun; Suhartini
Journal of Research and Technology Vol. 2 No. 1 (2016): JRT Volume 2 No 1 Jun 2016
Publisher : 2477 - 6165

PT Suryagita Nusaraya is a company engaged in the field of courier services in Surabaya. Since it is a good company that has qualified employees, it continuously makes efforts for the improvement of the welfare and advancement of employees. Judging from the current phenomena, there are number of employees who violate the rules that have been set by the management of PT Suryagita Nusaraya including: not punctual, often being absence, and leaving the company during working hours. The purpose of this study is to analyze the factors that most affect the job satisfaction of employees of PT Suryagita Nusaraya using multiple linear method. The independent variables used are work (X1), status (X2), boss (X3), colleagues (X4), and promotion (X5), while the dependent variable is employee satisfaction (Y). Here, the method used in this research is multiple linear regression. Based on statistical data analysis, the indicators in this study are valid and are reliable variables. In the classic assumption test, the regression of multicolinierity free model, there is no heteroskedastisitas for the data and it has normal distribution. The sequence of the most influential variables individually are as follows: status (X1) with a regression coefficient of 1.095, boss (X2) with a regression coefficient of 0.644, job (X3) with a regression coefficient of 0.084, and colleagues (X4) with a regression coefficient of 0.019, while the lowest influential variable is sale (X5) with a regression coefficient of - 0.066. Keywords: Employee, Multiple Linear Regression, Satisfaction, Service Delivery.

PENGARUH PERLAKUAN AWAL SAMPAH ORGANIK TERHADAP PRODUKSI BIOGAS SECARA ANAEROBIC DIGESTION Dhaniswara, Trisna Kumala; Fitri, Medya Ayunda
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

The biggest problem currently in Indonesia is accumulated and uncontrolled of garbage amount everywhere, especially organic waste. There are also more methods to utilize waste. One of waste utilization is Biogas. Organic content in organic waste can be used as a substart source for anaerobic bacteria. Initial treatment of organic waste in this study used as a variable, namely chopped and blended. This initial treatment was done before it was mixed with other materials, ie cattle dung and water. 200% water was added to the reactor along with other variables. Temperature, pH and biogas volume were observed for 30 days. Initial treatment factor of organic waste as biogas production substrat showed blend treatment with decay, it had higher biogas production than others. Biogas volume was resulted 189.99 cm3 with a composition ratio of 50% cattle dung and 50% organic waste.Keywords: Biogas, Livestock Manure, Organic Waste.

TRANSESTERIFIKASI MINYAK DEDAK PADI SECARA IN-SITU DENGAN BANTUAN GELOMBANG MIKRO Rahkadima, Yulia Tri; A’yuni, Qurrota
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Rice bran as rice milling waste is very promising to be used as raw material of oil producer such as biodiesel oil. The production process by using of microwaves has been studied in this research. The production process was carried out in-situ where the extraction process of rice bran oil and the biodiesel formation reaction occured simultaneously in microwave radiation. Rice bran was obtained from Lamongan area with IR 64 type. The reaction was carried out in modified microwaves with variation of operating conditions on reaction times (10, 30 and 50 min) and weight ratio of rice bran to methanol (1:4, 1:8, 1:12, 1:16 and 1:20). The results obtained were then analyzed by product yield and free fatty acid content. The optimum condition was obtained in the highest yield of the product with the lowest free fatty acid. The results showed that the optimum condition was obtained at reaction time of 30 minutes with the ratio of ricebran:methanol at 1:12. Keywords: Microwave, In-situ, Rice Bran Oil, Transesterification.

PEMANFAATAN KOTORAN SAPI DAN SAMPAH SAYUR PADA PEMBUATAN BIOGAS DENGAN FERMENTASI SAMPAH SAYURAN Fitri, Medya Ayunda; Dhaniswara, Trisna Kumala
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
Publisher : 2477 - 6165

Biogas is one solution to the use organic waste (livestock manure and vegetables). The aim of the research was to find out the effectiveness of livestock manure and fermentation of vegetable waste into biogas. This research was carried out using fermented vegetable waste for 10-12 days, then it was chopped and blended. The vegetable waste is then mixed with cow dung and water according to the determined variables. The mixture was put into a brown glass bottle and the bottle mouth was closed with a balloon and deposited for 8 days. Furthermore, the CO2 gas produced wasreleased and start to deposite again for 20-30 days. Trapped methane gas obtained from in the balloon was then stored to measure the produced volume and pH and also the methane gas. The results obtained from the research that is were the best pH obtained from vegetable waste blender fermentation treatment (% water100 and the percentage ofKS: SO was 75:25) was 7 and the largest volume was obtained from fermented chopped vegetable waste treatment (water% 300 and percentage KS: SO was 100: 0) of 78.73 cm3. Keywords: Biogas, Fermentation of Vegetable Waste, Cow Manure.

ANALISIS PENGENDALIAN KUALITAS PRODUKSI BOGIE BARBER S2HD9C MENGGUNAKAN METODE LEAN SIX SIGMA DI PT BARATA INDONESIA (PERSERO) GRESIK Suparno; Hamim, Moh. Ismail; Prasetiawan, Heru
Journal of Research and Technology Vol. 2 No. 2 (2016): JRT Volume 2 No 2 Des 2016
Publisher : 2477 - 6165

This study aimed to analyze the quality control and waste that occurs in side frame S2HD9C production using lean six sigma method with DMAIC approach in PT Barata Indonesia (Persero) Gresik. Side frame S2HD9C is a part of bogie barber S2HD9C products. This study focused on six sigma phase on defect analysis and sigma performance, while lean six sigma phase focused on the analysis of waste and sigma performance. The data used in this study are two types: primary and secondary data, qualitative and quantitative. Primary data were obtained from field observations, while secondary data obtained from the study of the document. This study conducted with the approach of DMAIC (define, measure, analyze, improve, control). After the analysis at six sigma stage, it is known that there are 5 types of defects that occur in January to April 2016, they are trapped gas defect 58.18%, broken core defect 21.82%, sand dropdefect 12.73%, brake mold defect 5.46% and misplace core defect 1.82%. And sigma value achievement level of each defect are as follows: trapped gas defect 1235.71 DPMO = 4.52σ, broken core defect 463.392 DPMO = 4.81σ, sand drop defect 270.312 DPMO = 4.96σ, brake mold defect 115.848 DPMO = 5.18σ and misplace core defect 38.616 DPMO = 5.45σ. In lean six sigma stage, it is known that there are 4 types of waste, they are: waste defect product, waste waiting time (delay), waste transportation, and waste excess process. Here are achievement values of each waste: waste defect product 6890 DPMO = 3.96σ and value capability process 1.31 = 3.94σ, waste waiting time (delay) value capability process 1 = 3σ, waste transportation value capability process 1.31 = 3.94σ and waste excess process 1499.75 DPMO = 4.47σ.Keywords: DPMO, Defects, Lean six sigma, Waste.

KAJIAN TANAH ENDAPAN PERAIRAN SEBAGAI MEDIA TANAM PERTANIAN KOTA Haryanta, Dwi; Thohiron, Moch.; Gunawan, Bambang
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Siltation of the river, ditches, reservoirs in urban areas is a problem because it causes flooding. The government annually undertakes dredging of the precipitate for the flow of water to flow smoothly. Soil sedimentary water potential to be utilized as a medium of planting in the development of urban agriculture. The research was conducted by survey method in water area of Surabaya. The sample was taken using random method of choosing, that is choosing condition of place environment and soil condition which is possible for planting medium. Soil sediment samples were observed for pH, color,structure, texture, organic matter content, Nitrogen (N-total), K2O and P2O5. The result of research showed that all of the textured sedimentary soil content of clay was about 89,87-92,14%, organic material was about 5,96-7,60%, total N was about 0,09-0,13%, K2O was about 0,88-1,12%, and P2O5 was about 2,08-2,44%. The color of soil was grayish-black. The mud deposits of the housing sewer were the most crumbling and the most consumptive reservoir was sludge. Sewage soil sludge is potentially used as a planting medium in the development of urban agriculture. Keywords: Planting Media, Urban Agriculture, Soil Sedimentary.

ANALISIS POTENSI DAN DAMPAK KEBOCORAN GAS HIDROGEN PADA HYDROGEN PLANT DI INDUSTRI PELUMAS Setiawan, Adhi; Hanifah, Dian Nur; Nugroho, Agung; Dermawan, Denny
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

The increasing need of industrial pure hydrogen is growing. One of its roles is petroleum industry purification. High purity hydrogen (99.99%) was obtained from methane using Steam Methane Reforming Method in hydrogen plant unit. Hydrogen is a very dangerous chemical element with its flammable characteristic. This research was conducted especially on purification system. Quantitative analysis was used to determine hydrogen leakage frequency, consequence modeling, and risk estimation that would be risen. The analysis results showed that the highest frequency occured in unignited release events. Jet fire scenario produced the longest fire length in HPU for about 27 meters. Jet fire scenario impact produced the farthest secure distance in case of a leakage in HPU section of 60 meters. Flash fire produced the farthest distance loss in a leakage case in HPU of 80 meters, and explosion at 200 meters radius would will have a blast overpressure 7.62 psig with 22% fatality estimation of the population. Keywords: Hydrogen Purification Unit, Hydrogen, Consequence Modeling, Risk.

ANALISIS PENINGKATAN KEPUASAN MAHASISWA TERHADAP TEACHING TEAM MATA KULIAH DEPARTEMEN MANAJEMEN TEKNOLOGI ITS Noer, Lissa Rosdiana
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Improving students’ satisfaction to the teaching subjects team of Department of Technology Management ITS Department was assessed using Gap Analysis. The analysis was chosen to find out the expectation and reality that students served to academic service provided by teaching team. Industrial Management, Project Management, and Information Technology Management. Total subjects were 23 pursued by studnt of 2nd, 3rd, and 4th semester. The data processing results show that there were 17 subjects with valid data. Enhancements needed to improve students’ satisfaction are by implementating midterm exam, final exam, and task (presentation) on schedule, giving lecture material according to the expertises, giving clear and understandable lecture material, giving subjects literature, performing objective and transparent assessment, explaining lesson plan, holding lecture on schedule, being able to understand students’ characteristic, being available for discussion outside the class meetings, accepting criticism and suggestion. Keywords: Teaching Team, Student Satisfaction, Analysis Gap.

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Home Page

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Editorial Team

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Reviewer

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Contact Name Muchammad Tamyiz

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Location Kab. sidoarjo, Jawa timur INDONESIA

Abstract

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Abstract

Contact Name
Muchammad Tamyiz

Contact Email
muchammad_tamyiz@yahoo.com

Phone
-

Journal Mail Official
muchammad_tamyiz@yahoo.com

Editorial Address
-

Location
Kab. sidoarjo,

Jawa timur

INDONESIA