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EVALUASI EMERGENCY RESPONS PLAN PADA KAPAL 42M CREW BOAT BERDASARKAN IMO INTERIM GUIDILINES Ashari, Mochamad Luqman; Wiediartini, Wiediartini; Dermawan, Denny
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 10, No 3 (2013): Oktober
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.739 KB) | DOI: 10.14710/kpl.v10i3.5600

Abstract

Emergency situations that have tendency or potential harm can be happened any time and any where and carry some big damaging impacts to property damages, mental disturbances, injured and died victims. In shipping, emergencies can be happened in both at anchor or while doing loading and unloading activities at the port. The type of equipments used in emergency situations set out in SOLAS Chapter III (Life Saving Appliance) and the guidelines for evacuation analysis on passenger ships refer to the IMO Guidelines Interm MSC/Circ.909. This study aimed to determine the muster station and evacuation time on the ship 42 M crewboats with a capacity of 101passengers. This ship consists of three parts of decks, these are lower part, main deck and bridge deck. The results showed that the placement of muster station is on the bridge deck with required wide 35.35 m2. Evacuation time need by the all passengers to reach the muster station on the bridge deck is 51.59 minutes, and this is in accordance with standard evacuation time (not more than 60 minutes).
Biosorpsi Logam Berat Cu(II) Menggunakan Limbah Saccharomyces Cereviseae Setiawan, Adhi; Basyiruddin, Fariz; Dermawan, Denny
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 1 (2019): Maret 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (765.095 KB) | DOI: 10.14710/presipitasi.v16i1.29-35

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Biosorpsi merupakan salah satu jenis bentuk pengolahan limbah logam berat dengan menggunakan mikroorganisme, seperti bakteri, alga dan ragi (yeast). Penelitian ini  menggunakan ragi (yeast) dari industri bir. Proses preparasi biosorben meliputi pengendapkan, pengeringan, dan pengayakan untuk memperoleh ukuran homogen. Biosorben yang terbentuk kemudian dikontakkan dengan larutan Cu (II) dengan konsentrasi 25 mg/L dan diteliti pengaruh pH (3, 4, 5), waktu kontak (1, 2, 3 jam) dan berat biosorben (0,25, 0,5, 0,75 gr) terhadap kemampuan biosorben dalam menurunkan konsentrasi logam Cu. Selanjutnya pada persen removal tertinggi dilakukan regenerasi menggunakan HNO3. Konsentrasi Cu yang setelah biosorpsi diuji menggunakan spektrofotometer Uv-Vis. Hasil penelitian menunjukkan bahwa pada pH 5, waktu kontak 1 jam dan berat biosorben 0,75 gr memiliki persen removal yang tertinggi yaitu sebesar 55,36%. Biosorben yang telah diregenerasi mengalami penurunan persen removal logam Cu (II) dari 55,36% menjadi 48,2%.
Studi Pemanfaatan Limbah Padat Industri Pengolahan Minyak Kelapa Sawit Spent Bleaching Earth sebagai Pengganti Agregat pada Campuran Beton Dermawan, Denny; Ashari, Mochammad Luqman
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 15, No 1 (2018): Maret 2018
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (802.236 KB) | DOI: 10.14710/presipitasi.v15i1.7-10

Abstract

Palm oil refinery factory has solid waste by product  called Spent Bleaching Earth (SBE). SBE consists of some chemical compounds and one of them  is SiO2 up to 83,05%. SiO2 or silica fume can cause silicosis if it is exposed to the atmosphere and frequently inhaled by the workers.  On the other hand,  SiO2  is one of the material  composition of Portland cement. Thus, it is necessary to conduct a research about the utilization of SBE. as a concrete mixture. SBE is utilized as fine aggregate substitution by the composition of 0%, 10%, 20%, 30%, and 40% of the total amount of fine aggregate. The conducted tests are fineness modulus calculation, compressive strength, setting time, and TCLP. The method used for mix  design is SNI 03-2834-2000 with f’c 28,5 MPa and slump 12 ± 2 cm. This research  shows  that concretes with SBE substitution which achieve the planned compressive strength are 10% SBE with 34,16 MPa and 20% SBE with 29,06 MPa. Based on the TCLP test, the concentration of heavy metal substances in 10% SBE are below the standard. Thus, it is  scientifically proven to conclude that concrete with 10% SBE is technically proper and safe for the environment.
PENGOLAHAN CITRA DIGITAL BERBASIS WIRELESS 2.4 GHz DENGAN MEMANFAATKAN ARDUINO UNO REV 3 Firmansyah, Andika Agung; Dermawan, Denny
Compiler Vol 4, No 1 (2015): Mei
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.796 KB)

Abstract

Digital image processing of a system capable of generating digital image data and software as a medium to display the digital image data that uses radio waves to send data in HEX and convert in the form of images. Linksprite camera which enable to produce the digital image data and utilize the arduino UNO as a controller to send commands to the camera image capture and send the digital image data to the PC. The process of digital image based data transmission by radio waves utilizing the XBee Pro Series 1 . Results of testing the system implemented in the outdoor can take a longer distance when compared with the application of the system in the room . At a distance of 10-250 meters complete the full HEX data transmission and produces good images , with time ranging 2m.29s.39ms-2m.36s.56ms. Distance of 260-450 meters with a time of 2m.05s.02ms - 06ms 2m 01s but the picture quality is not good. At a distance of 500-530 meters with a time of 1m.10s.23ms-0m.50s.59ms produce images that are very less. While the distance of > 550 meters is the limit HEX data transmission capability to the receiver. The ability of the system mileage in the process of data transfer shorter if applied indoors. Distance of 1-60 meters with a time of 2m.29s.39ms - 60ms.2m.34s produce good quality images. At a distance of 80 meters with a time of 1m.25s.59ms produce poor images, and with a distance of 90 meters with a time 0m.35s.49ms produce images that are very less . While the distance of > 100 system not able to perform HEX data transmission
PENGARUH KEBISINGAN DAN IKLIM KERJA TERHADAP STRES KERJA DI PABRIK PRODUKSI MAKANAN HEWAN Wiediartini, Wiediartini; Dermawan, Denny
Journal of Research and Technology Vol 5, No 1 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.65 KB)

Abstract

Noise and heat has become a problem for worker in animal food processing company.  The aim of this study was to investigate the influence of noise and heat to stres. Noise and heat data were collected as primary data and stres was collected by questionnaire and analyzed by multiple regression. The result showed relationship between noise, heat and stres (sig 0,003<0.05). A moderate correlation between noise, heat and stres was also observed (r=0,561). No differences between two groups of age, gender and status were found with t test. Reducing noise and heat by engineering and administrative control were necessary execute. There is no need for different treatment to reduce stres between group of gender, age and status.
Studi Komparasi Kelayakan Teknis dan Lingkungan Pemanfaatan Limbah B3 Sandblasting terhadap Limbah B3 Sandblasting dan Fly Ash sebagai Campuran Beton Dermawan, Denny; Ashari, Mochammad Luqman
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 15, No 1 (2018): Maret 2018
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (824.43 KB) | DOI: 10.14710/presipitasi.v15i1.25-30

Abstract

Fly ash and sandblasting slag widely used as concrete’s builder because it contains quite high silica (SiO2) approximately 58,20% and 98,97%. Fly ash and sandblasting slag can increase concrete power pressure and contains characteristic like cement. Method of concrete making and technical feasibility test on this research use SNI standar (SNI 03-2834-2000). Environmental feasibility test use Toxicity Characteristic Leaching Procedur (TCLP) according PP No. 101 tahun 2014. The results of this research show that the use of  sandblasting slag can increase concrete power pressure at age of immersion 28 days. Concrete power pressure with 5%; 10%; 15%; and 20% sandblasting slag are 16,32 MPa; 17,81 MPa; 18,89 MPa; and 15,24 MPa. The use of sandblasting slag and fly ash can increase concrete power pressure at age of immersion 28 days. Concrete power pressure with 5% sandblasting slag and 30% fly ash; 10% sandblasting and 25% fly ash, 15% sandblasting and 20% fly ash, and  20% sandblasting and 15% fly ash are 18,53 Mpa, 16,08 MPa, 17,20 Mpa, and 15,91 MPa.  Based on the TCLP test, the concentration of heavy metal substances in 10% SBE are below the standard. Thus, it is  scientifically proven to conclude that concrete with 10% and 15% sandblasting slag and 5% sandblasting slag and 30% fly ash; 15% sandblasting and 20% fly ash are technically proper and safe for the environment.
PERANCANGAN APLIKASI VIDEO STREAMING UNTUK PEMANTAUAN AIR LAUT KETIKA TERJADI GEMPA Irawan, Wahyu; Dermawan, Denny; Retnowati, Nurcahyani Dewi
Compiler Vol 2, No 2 (2013): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.103 KB)

Abstract

The geographical position of Indonesia is located in an earthquake-prone area that is potentially most earthquake-tsunami, it takes a transmission medium to connect the cameramonitoring results between the sender and receiver of information or data that may provide information to the natural disasters. The transmission media can be a media streaming seawater and alarm monitoring that is connected with vibration sensor that functions as a medium for early warning of natural disasters. From the test results it can be concluded that the alarm system warning of earthquakes, able to work well as vibration sensor detects vibration. As well as video streaming process can run well on a LAN network using HTTP protocol 8080. Society as a client can access the video streaming server via the address specified by the application server.
PERANCANGAN TAMPILAN VISUAL DOCKING GUIDANCE SYSTEM (VDGS) PADA SISTEM PARKIR PESAWAT TERBANG Dermawan, Denny; Purnomo, Muhammad Jalu
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.65 KB)

Abstract

Visual Docking Guidance System (VDGS), is a device provided by the airport service to assist a pilot parked the plane on the righr place. On Aircraft parking control activities in the airport, the pilot is assisted by a marshaller that aims to be steering the movement of aircraft to the correct parking spot. The more density of the movement of aircraft on the apron activity requires the use of alternative technology to substitute marshaller, this technology is called Visual Docking Guidance Syatem (VDGS). VDGS display design uses three pieces o f board o f dot matrix display that is made into one to form a combination in accordance with the appearance on the VDGS on the market. Display used is a superbright LED dot matrix. The controller is a three pieces of. PIC 16F84A microcontroller and a series o f shift registers to display the movement of the aircraft to the right, to the left, straight and stops and also display the aircraft identity.
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)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.575 KB) | DOI: 10.5281/zenodo.2581773

Abstract

Increasing the need for pure hydrogen in the industry is growing. One of its roles is in purification of petroleum industry. High purity hydrogen (99.99%) was obtained from methane using the steam methane reforming method in the hydrogen plant unit. Hydrogen is a very dangerous chemical element with its flammable properties. This research is conducted especially on purification system. Quantitative analysis is used to determine the frequency of hydrogen leakage, consequence modeling, and risk estimation that will be generated. The results of the analysis show that the highest frequency occurs in unignited release events. The jet fire scenario produces the longest fire length in the HPU about 27 meters. The jet fire scenario impact produces the farthest secure distance in the case of a leak in the HPU section of 60 meters. The flash fire produces the farthest distance loss in a leakage case in the HPU of 80 meters, and explosion at a radius of 200 meters will have a blast overpressure 7.62 psig with 22% fatality estimation of the population.
PENGARUH JARAK TERHADAP KUALITAS GAMBAR DALAM PENGIRIMAN CITRA DIGITAL MELALUI JARINGAN WIRELESS PADA KAMERA LS Y201 Hidayat, Zhulfa Arif; Dermawan, Denny; Retnowati, Nurcahyani Dewi
Compiler Vol 2, No 2 (2013): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.092 KB)

Abstract

Digital image was needed us a medium of information that can be transmitted by cable or wireless media. To obtain digital images must use a tool such as a camera. Users can use the camera to get a digital image with the remote sensing method on an object in a particular place. In the daily activities, users can take advantages of the digital image (pictures or video) that are useful for media documentation, monitoring system in somewhere and others. The design of this tool using LS_Y201camera to capture a digital image and wireless as a data transmission media. In this case a wireless media use Ultra High Frequency transmitter and receiver that support for remote sensing. Users run the tool through an application that is connected with a wireless media. This application is designed byDelphi7. Applications and wireless camera was made for simulation media of remote sensing and monitoring system in the blank spot area. The test result of applications and tools that use the Ultra High Frequency (wireless), can be viewed from a computer interface. In this case, the signal strength ofthe transmitter greatly affect the maximum distance that can be taken to make capture process. The test results are as follows: the best results at a distance of 10 meters = 011110102 (12210); distance of 20 meters = 011100112 (11510); distance of 30 meters = 011110102 (12210); distance of 40 meters =011011112 (11110); distance of 50 meters = 011100102 (11410). So the best distance to digital images transmission through a wireless networks are at a distance of 40 meters.