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Journal : TEKNIK

KAJIAN PELEPAH KELAPA SEBAGAI SERAT KOMPOSIT (STUDY OF COCONUT BRANCH AS COMPOSITE FIBER) Darmanto, Seno; Sediono, Windu; Setyoko, Bambang; Murni, Murni
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.107 KB) | DOI: 10.14710/teknik.v28i1.2075

Abstract

Research is done to analyze coconut branch fiber as car body composite. Analyzing is based onmaterial, composition, and strength of material. Research was done in laboratory. Coconut branchfiber is obtained by natural drying process and cutting to become fiber with ±0,5 mm of length.Reinforcement and binder is determined polyester resin. Coir (coconut fiber) have 1.15 kg/m3 ofdensity, 1.15 MPa of strength dan modulus elastisitas 4 – 6 GPa. And based on specimen and studyof literatures can show that increase of cellulose of natural fiber will increase modulus of elasticity.The Increasing of modulus of elasticity will be maximal with cellulose more than 60%. Color ofspecimen is transparent yellow.
PENUKAR KALOR CANGKANG DAN TABUNG EFEKTIF UNTUK MENDINGINKAN MINYAK PELUMAS MESIN DIESEL DENGAN PENYARINGAN SISTEM CABANG Murni, Murni
TEKNIK Volume 28, Nomor 2, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (831.59 KB) | DOI: 10.14710/teknik.v28i2.2118

Abstract

Lubrication is important parameter in whole operation in diesel engine, bad lubrication will affect trouble inoperation lubrication have double function decrease friction and cooling. So lubrication has to be treatmentto increase quality by cooling method. Cooling method is done with bat exchanger of shell and tube type. .
MESIN PENGERING KAYU SEDERHANA UNTUK HOME INDUSTRI Murni, Murni
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.354 KB) | DOI: 10.14710/teknik.v28i1.2072

Abstract

Dryer machine of wood is made to fulfill need of wood in order to produce raw of drying wood is notdepended weather. Making of dryer of wood usually requiree investment cost more expensive . it is heavyfor home industry .Inovation of simple dryer machine is done with flowing steam naturally and base onanalyzing it shows that drying can achieve moistur content 12 persen
PENUKAR KALOR CANGKANG DAN TABUNG EFEKTIF UNTUK MENDINGINKAN MINYAK PELUMAS MESIN DIESEL DENGAN PENYARINGAN SISTEM CABANG Murni, Murni
TEKNIK Volume 28, Nomor 2, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (831.59 KB) | DOI: 10.14710/teknik.v28i2.2128

Abstract

Lubrication is important parameter in whole operation in diesel engine, bad lubrication will affect trouble inoperation lubrication have double function decrease friction and cooling. So lubrication has to be treatmentto increase quality by cooling method. Cooling method is done with bat exchanger of shell and tube type. .
PENGARUH TEMPERATUR SOLAR TERHADAP PERFORMA MESIN DIESEL DIRECK INJECTION PUTARAN KONSTAN Murni, Murni
TEKNIK Volume 33, Nomor 1, Tahun 2012
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.846 KB) | DOI: 10.14710/teknik.v33i1.3790

Abstract

The imperfect combustion process will be a problem in the development effort of diesel engine’s performance.Nonhomogen air–fuel mixing process is one of the factors which cause the imperfect combustion.By heating upthe diesel solar up to a certain temperature before it goes through the high pressure injection pump will lowerits density and viscosity. Therefore, when injected in the combustion chamber, it will formed smaller droplets offuel spray which result in a more homogenious air–fuel mixture. Also by using higher temperature will make thediesel fuel easier to ignite in order to compensate the limited time which is available in high speed operatingconditions. Diesel engine Dong Feng 1 cylinder direct injection at constant speed was used in this research. Thefuel used are solar with temperature variations in the range from 30oC to 70oC . The best thermal efficiency forsolar fuel is 30 % at 60oC with 28 % BSFC. In this condition, the fuel consumption was decreased 4 % bycomparing with that at 30oC.
Co-Authors ., Nurwahyudi A Zaenurrosyid A. Rahman, Rian Hidayat A.A. Ketut Agung Cahyawan W Abd Rahman Abdul Haris Abdul Malik Abdul Samad Abdul Syukur Abqa, Rizkan Abu, Nur Abubakar, Endang Ade Irfan Adiyono AF, Nuru Agus Syahrani Agusanty, Harnita Ahmad Ahmad Ahmad Farhan, Ahmad Ahmad Madaul, Rahful Akbar Prayudi, Lalu Akib, Faisal Aklima, Siti Akmaluddin Akmaluddin Alam, Risma Alfian Ma’arif Alfurqan, Alfurqan Alimudin Laapo Alting, Saoda AMALIA, TIARA Amrazi Zakso Anantanur, Devi Andayaningsih, Sri Andi Rahmaniar Anggawan, Ghiraldy Patrick Toshka Anggita Salsabila, Afra Anggraini, Rizka Dwi Anindya Ardiansari Antono Suryoputro Anwar, Asni Aprisal Aprisal, Aprisal Arifin, Teguh Aryani, Irne Ashar Ashar Ashari, Herlina Bambang Irawan Bambang Setyoko Bambang Subali Barlian, Barlian Berkah Fajar Tamtomo kiono Berliana, Walda Dewi Bien, Nguyen Van Boni, Abdul Salam Khuzaifah Burhanuddin Burhanuddin Dahlan Susilo Daniel Happy Putra Daniswari, Karima Darman Manda Manda Darmawati Darmawati Desembardi, Faried Didik Ariwibowo Diyono Ikhsan Djulaeka, Djulaeka Dwi Handayani Ellianawati, Ellianawati Ellya Roza Elmawati, Elmawati Esthi, Franata Suriana Eva Ayuzar, Eva Fadillah Putra Fahmi Arifan Faizi, Besse Nur Fajarudin, Fauji Fatimah Zuhra Fatmawati, Fatmawati Ferdiyanto, Riky Firdauz, Firdauz Firdhaus Hari Saputro Al Haris Fitra Mayenti Fitri Ningsih, Fitri Fui Fui, Ching Furizal, Furizal Gusti Budjang Gustin, Mardhilla Haidah, Nur Haikal, Fikri Haikal HAMSAH ., HAMSAH Hamsah, Hamsah Hardyanto, Arief Prakoso Hasanah Hasanah Hasni Hasni Hidayat Hidayat Hilmi Hilmansyah Ibal, La Ihsan, Andi Ihsan, M Ali Ilham Ilham Imam Syauqi, Bariq Indra Indra Indraswari, Ni Luh Astri Indrayani, Ninik Irawati, R Ira Irma Aryani Ismaniar Ismaniar Ismunandar Jamil Jamil Jamiludin, Jamiludin Jarista, Linda Jarjani Usman Jayed, A K M juherah, juherah Kada, Marselino Sambo Kamaruddin Kamaruddin Khaeriyah, Andi Kidunga, Lyra La Ibal Lubis, Junita Lugendo, Dorine M., M. Ghalib Mahfudz, Muhsin Makruf Makruf Manovri Yeni Mansur, Mardiansyah Mapatoba, Marhawati Mardiah Astuti Mardiaton, Mardiaton Maskur Maskur Mirza Mirza Monica, Sindy Muhammad Furqan, Muhammad Muhammad Isa Muhammad Jundullah Muhammad Noor Muhammad Rusdi Musriandi, Riki Mustofa, Ahmad Badrul Ali Mustofa, Winanda Nahampun, Rajin Najmi Najmi, Najmi Nakib, Arman Mohammad Nazira, Cut Na’imamah, Na’imamah Nife, Kristina NINGSIH, NINGSIH Nisa, Mega Naurin Novianti, Ameliani Nisa Novitasari, Eni Nugroho, Novrian Cahyo Nur Azizah Nur Elisyah Nurhadi, A. R. Nurhidayah Nurhidayah Nurwijayanti Nusantara Habibi, Ahmad Rizky Pama, Sindi Ayudia Pama, Violeta Inayah Parman, Imelda Aulia Penggalih Mahardika Herlambang Putri, Nabila rahayu, arum putri Rahful A. Madaul Rahmat Rahmat Rahmi Rahmi Rajab, Vira Ardianti Ramadhan, Fazril Rani Tiyas Budiyanti Rasyadi, Andy Rasyid Ridha Ratna Ratna Ratna Wardani Rian Histiariani, Aprisa Riana Anggraeny Ridwan Rimal Mahdani Rosmini , Heriyanita Rully Charitas Indra Prahmana Rusmawar, Rusmawar Saiful Saiful Saleh, Muhammad Syaiful Saleh, Syaiful Salman Salman Sambu, Abdul Haris sanusi, Anwar Sari, Dwi Alpita Sembiring, Rinawati Senen Senen Seno Darmanto Setiawati, F S Nugraheni Siagian, Alfan Dani Siti Maisaroh Slamet Widodo Soedibya, Petrus Hary Tjahja Sri Utami Handayani Sriwana, Insan St. Masithah Suci, Syahra Deviena Khien Sufiyandi, Ilham Sugira, Dini Tri Suharto Linuwih Sujatmiko Sujatmiko Sukma Erni Supriyadi Supriyadi Suriadiman, Noprieka Sustiawan, Awan Sutomo Sutomo Sutrisna, Saleh Sutrisno, Sutrisno Suwarno, Iswanto Suzanni, Suzanni Syafaat, Idham Wandi Syafruddin syahriani, endang Syamsuddin, Syaiful Syawaluddin Soadiq, Syawaluddin Syawaluddin Syawaluddin, Syawaluddin Tajuddin, Tamrin Tang, Beddu Tanggasari, Devi Taukhid, Imam Tella, Fitriyani Tony Suryo Utomo Tri Setiawan Putra, Ricky Ula, Nurul Umar, Bowasis Ummi Hanifah Marshush Usman, Auliah Usman, Musliadi Bin USWATUN HASANAH Wahyuddin Wahyuddin Wijaya, Setiawan Ardi Wiji Mangestiyono Windu Sediono Wulandari Wulandari Yundari, Yundari Yusuf, Farida Yusuf, Kurnia Zahirah, Zahirah Zainuddin Iba Zamzami Zainuddin, Zamzami