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All Journal Jurnal Bahan Alam Terbarukan Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Mechanical Jurnal Ilmiah Teknik Mesin Jurnal Informatika dan Teknik Elektro Terapan Journal of Science and Applicative Technology Journal Of Chemical Process Engineering (JCPE) Turbo : Jurnal Program Studi Teknik Mesin Prosiding Seminar Nasional Darmajaya Jurnal Teknik Mesin Indonesia Journal of Engineering and Scientific Research (JESR) Scientific Journal of Mechanical Engineering Kinematika Jurnal Profesi Insinyur Universitas Lampung Journal of Applied Science, Engineering and Technology (J. ASET) Jurnal Rekayasa Lampung (JRL) Seminar Nasional Insinyur Profesional (SNIP) Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung Jurnal Masyarakat Madani Indonesia Journal Of Chemical Process Engineering JURNAL REKAYASA KIMIA & LINGKUNGAN Jurnal Bahan Alam Terbarukan Nemui Nyimah

Herry Wardono

Jurusan Teknik Mesin, Fakultas Teknik, Universitas Lampung

Author-ID : 280872

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Activation of Natural Zeolite Mixture and Coal Flyash Using Microwave as Air Filter for the Improvement of Gasoline Four-Stroke Motorcycle Engine Acceleration Risano, A Yudi Eka; Wardono, Herry; Renardy, B Niko; Susila, M Dyan; Sugiri, Agus; Haviz, Muhammad
Journal of Applied Science, Engineering and Technology Vol. 4 No. 1 (2024): June 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i1.70

Combustion is a chemical process between fuel and oxygen utilizing heat. Ambient air contains a variety of gases such as nitrogen, oxygen, and other gases, causing incomplete combustion in the combustion chamber of a 4-stroke petrol engine. The use of artificial air filters with zeolite-flyash composition activated by microwave can adsorb the air that enters the combustion chamber. So that it can improve the quality of combustion. Zeolite is a mineral that is found in limestone mountainous areas, while coal flyash is material from coal combustion at PLTU. Both of these materials have the ability to adsorb molecular sized particles such as nitrogen, CO and water vapor in the air, so the use of both materials is able to produce air with rich oxygen. The performance of the 4-stroke petrol engine is influenced by a decrease in fuel consumption, able to increase acceleration, and reduce exhaust emissions containing CO and HC. To find out the effect of the use of activated zeolite-flyash filters on engine performance, an acceleration test of 0-60 kph was performed. Filter being activated by Microwave with 80% power, 6 minutes activation time, and density (variation in the number of pellets in the filter) 50%, 75%, 100%, and use the Z0: F100, Z25: F75, Z50: F50, Z75: F25, Z100: F0. The best filter is the composition of Z100:F0 with a compactness of 50% able to increase acceleration by 7.17%, followed by filter with composition of Z25:F75 with a compactness of 50% able to increase acceleration by 4,04%.

Inovasi dan Kota Cerdas: menuju Ibu Kota Negara (IKN) yang berkelanjutan Yunita , Diana; Purba, Aleksander; Wardono, Herry
Jurnal Profesi Insinyur Universitas Lampung Vol. 5 No. 2 (2024)
Publisher : Fakultas Teknik Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpi.v5n2.134

Dalam rangka mewijudkan smart city, Indonesia memiliki salah satu visi mewujudkan Ibu Kota Negara (IKN) menjadi Kota Kelas Dunia untuk semua, bertempat di Provinsi Kalimantan Timur yang mulai dibangun secara serius oleh Pemerintah Republik Indonesia pada tahun 2019. Keputusan pemindahan Ibu Kota Negara keluar Pulau Jawa ini dicantumkan dalam Rencana Nasional Jangka Menengah Nasional (RPJMN) 2020-2024. IKN diproyeksikan akan mendorong pertumbuhan ekonomi dan pemerataan pembangunan yang sampai saat ini masih tersentralisasi di Pulau Jawa. Tulisan ini menggunakan pendekatan 8 layer smart city mulai dari identitas, sejarah dan budaya, karakteristik ruang, basis ekonomi, ekosistem kecerdasan, tingkat kesiapan teknologi, dampak kehadiran teknologi dan juga sistem tata kelola yang diterapkan pada 3 Kota di Indonesia yang masuk kedalam ranking Smart City Index 2023 oleh IMD untuk kemudian diambil kesimpulan proyeksi penerapan smart city yang berkelanjutan untuk Ibu Kota Negara (IKN). Dalam pendekatan yang sudah dideskripsikan secara singkat, 3 Kota di Indonesia yang masuk kedalam ranking Smart City Index 2023 oleh IMD memiliki identitas sebagai kota yang kuat sedari dulu. Sehingga pembangunan IKN yang baru harus menguatkan citra kota serta penyiapan teknologi yang baik untuk menjadi Kota Cerdas yang berkelanjutan.

KAJIAN KETERSEDIAAN DAN KEBUTUHAN AIR BAKU KABUPATEN MESUJI Fiandra, Firda; Wardono, Herry
Jurnal Rekayasa Lampung Vol. 1 No. 1 (2022)
Publisher : Fakultas Teknik Universitas Lampung

Kabupaten Mesuji memiliki kondisi hidrogelogi dengan sebagian besar merupakan daerah rawa. Masyarakat Kabupaten Mesuji menggunakan air tanah dan menampung air hujan untuk memenuhi kebutuhan sehari-hari. Pemenuhan kebutuhan air baku bagi Kabupaten Mesuji menjadi tantangan tersendiri mengingat ketersediaan air yang masih belum mencukupi. Sungai-sungai yang ada di Kabupaten Mesuji merupakan potensi air baku yang besar diharapkan dapat memenuhi kebutuhan air baku masyarakat sekitar, maka perlu direncanakan dengan baik agar sistem yang dibangun dapat beroperasi secara efektif dan efisien. Untuk dapat merencanakan penyediaan air baku yang efektif dan efisien dibutuhkan kajian ketersediaan dan kebutuhan air baku di Kabupaten Mesuji. Berdasarkan analisis yang dilakukan didapatkan ketersediaan air baku dengan sumber air Sungai Jari, Sungai Harapan Jaya, Sungai Serdang dan Sungai Cisarua dapat memenuhi kebutuhan air baku. Debit Andalan Sungai Jari Kecamatan Way Serdang sebesar 885,59 lt/dt dengan debit kebutuhan sebesar 51,26 lt/dt. Debit Andalan Sungai Harapan Jaya Kecamatan Simpang Pematang sebesar 1.119,71 lt/dt dengan debit kebutuhan sebesar 36,08 lt/dt. Debit Andalan Sungai Serdang Kecamatan Way Serdang sebesar 35.651,76 lt/dt yang akan digunakan untuk daerah layanan Kecamatan Panca Jaya dengan debit kebutuhan sebesar 20,4 lt/dt. Debit Andalan Sungai Cisarua Kecamatan Tanjung Raya sebesar 478,01 lt/dt dengan debit kebutuhan sebesar 52,49 lt/dt. Neraca Air berdasarkan kebutuhan dan ketersediaan air menunjukkan surplus untuk setiap sumber air sungai yang direncanakan.

IDENTIFIKASI ARSITEKTUR TROPIS PADA BANGUNAN ARSITEKTUR NEO VERNAKULAR DI TULANG BAWANG BARAT Azmi, Nurul; Wardono, Herry; Sarkowi, M
Jurnal Rekayasa Lampung Vol. 1 No. 2 (2022)
Publisher : Fakultas Teknik Universitas Lampung

Penelitian ini dilatar belakangi kondisi pembangunan infrastruktur di Kabupaten Tulang Bawang Barat khusunya bangunan gedung yang menjadi percontohan di Provinsi Lampung sebagai pembangunan atau kawasan yang iconic dan arsitektural, konsep – konsep desain arsitektur Neo vernakular yang di wujudkan terlihat unik dan baru. Salah satu tokoh pelopor pembangunan Tulang Bawang Barat ialah Ir. Umar Ahmad mengatakan bahwa filsafah-filsafah berasal dari budaya Lampung dan Baduy serta nilai-nilai baru yang akan mendasari pembangunan kabupaten Tulang Bawang Barat sehingga para arsitektur tertarik untuk mendisain pembangunan Kabupaten Tulang Bawang Barat sehingga dapat dikatakan menjadi brandimage pembangunan bergaya arsitektural Neo Vernakular di Provinsi Lampung. disain gedung di Tulang Bawang Barat sangat iconic menjadi salah satu alasan kenapa topik ini diangkat menjadi topik penelitian. Tujuan penelitian ini adalah untuk mengidentifikasi bangunan arsitektur Neo Vernakular yang berpengaruh pada arsitektur tropis, studi kasus bangunan gedung di Tulang Bawang Barat. Metoda Penelitian yang dipakai dalam penelitian ini adalah dengan metoda kualitatif diskriptif yang dalam pelaksanaannya diawali dengan kegiatan survei lapangan atau pengamatan/observasi dan didukung dengan studi literatur. Sedangkan obyek penelitian adalah pembangunan gedung di Tulang Bawang Barat dengan menjabarkan desain bangunan secara umum, dan dan desain bangunan secara khusus dengan mengambil satu unit gedung dengan kriteria tertentu sebagai sample penelitian.

PENGARUH TEMPERATUR DAN WAKTU PEMANASAN ZEOLIT PELET TEKAN PADA AKTIVASI BASA-FISIK NaOH DAN KOH TERHADAP PRESTASI MOTOR DIESEL 4-LANGKAH Korin A, Novian; Wardono, Herry
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 1 (2013)
Publisher : FT UNILA

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Natural Zeolite is one of alternative adsorbents. Zeolite should be firstly activated to get zeolite with high adsorption capacity. The ability of chemical-physical activated zeolite in saving fuel consumption of a diesel engine proven by Herry Wardono using NaOH and KOH with normality of 0,75N. The mass of pressed pelletized zeolite used was 100 grams and with thermal activation at 200°C for 2 hour. In this research, zeolites were activated by using thermal activation at 150°C for 1 hour and 2 hours, and 200°C for 1 hour, these pellets were packed in a frame of 50 grams, 100 grams and 150 grams, and put them in the air filter of a diesel engine for each mass, so combustion air was firstly contacted with zeolites before entering to combustion chamber. The experiments were operated at engine speeds of 1500, 2000, 2500, 3000 rpm. The results showed that used of these thermal-Alkali activated zeolites could in increas the diesel engine performance. Use of 150 grams of KOH 0,75N activated zeolite that was thermally treated at 150oC for 2 hours could reduce the highest fuel consumption that was 0,0225 kg/kWh (11,211%), and as big as 0,0218 kg/kWh (10,87%) for use of 150 grams of NaOH 0,75N activated zeolite that was thermally treated at same condition. Meanwhile, the highest increase of brake power occurred for use of 100 grams of NaOH 0.75N activated zeolite that was 0,054 kW (7,667%), and as big as 0,0477 kW (6,849%) for use of 100 grams of KOH 0.75N activated zeolite. The results occurred at the engine speed of 1500 rpm.Keywords: thermal activation of Zeolite, Combustion air Treatment, Diesel Engine Performance

Pengaruh Variasi Temperatur dan Derajat Keasaman (pH) Air Pencucian Pada Aktivasi Zeolit Pelet Terhadap Prestasi Mesin Diesel 4-Langkah Pandapotan, Chandra Winata; Wardono, Herry
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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One of efforts to save fuel consumption can be done by using thermal-acid activated zeolite as adsorbent for water vapor and nitrogen. Herry Wardono has proved that the value of concentration of 0.3 N and 0.5 N in the chemical activation can save specific fuel consumption. The best result occurred in the use of thermal-chemical activated zeolite. In this research, thermal activation temperatures used were 150 0C and 200 0C respectively for 1 hour. Variations of washing water pH were also performed on the 4.5, 5.5 and 7. The results showed this thermal activation of 200 0C on activator HSO24 0.3 N and HCl 0.3 N can save fuel by 5.350% and 7.811% respectively. Then the pH value of 7 gave the best fuel consumption savings those were of 5.964 % and 7.175% for use of HSO 0.5N24 and HCl 0.5N. This result occured at low speed (1500 rpm).Keywords : adhesive pelletize zeolite, thermal activation, effect of washing water pH

Pengaruh Penggunaan Tabung Induksi Terhadap Konsumsi Bahan Bakar Sepeda Motor Bensin 4 Langkah Supratman, Junaidi; Wardono, Herry; Susila, M.Dyan
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 3 (2013)
Publisher : FT UNILA

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YEIS tube (Yamaha Energy Induction System) has been able to enhance the performance of the motorcycle. Therefore, the use of induction tube on a 4-stroke motorcycle is expected to be able to increase the volumetric efficiency of the suction stroke, so that the power (acceleration) of the engine can increase at low speed. Tests of using induction tubein a 4-stroke motorcycle is required to observe the effect of the induction tube position on its performance and emission.the engine performance tests were carried out in road tests at an average speed of 40 kph. It was conducted before and after using the induction tube, and the induction tube mountings on intake manifold were varied at positions of JS150 (15 mm from intake manifold), JS 375 (37,5 mm), and JS600 (600 mm). Each type of test was performed 3 times to get it’s average.From the results, it was found that the fuel consumption of the motorcycle could maximally reduce by 27.8% in mounting JS150 and the lowest engine consumption by 0.98% in mounting the intake manifold JS 600. The best result occurred in mounting of JS150 for all tests. JS150 is the optimal position. This due to JS150 is the closest position from intake manifold and the most farthest position from carburettor. Therefore, at mounting of JS150, residual air and fuel mixture can be fully drawn into both the line and tube of the induction tube. In contrast,JS600 is the farthest position from intake manifold, so that the residual air and fuel mixture cannot fully be drawn into the line and tube of the induction tube, the mixture is partially drawn into carburettor and induction tube, as in branched pipe system.Keywords : induction tube, petrol engine performance, YEIS.

PENGARUH VARIASI JENIS AIR DAN TEMPERATUR AKTIVASI DALAM CAMPURAN FLY ASH BENTUK PELET TERHADAP PRESTASI MESIN DAN EMISI GAS BUANG SEPEDA MOTOR BENSIN 4 LANGKAH Akbar, Bagus Rachmad; Wardono, Herry; Susila, M.Dyan
Jurnal Ilmiah Teknik Mesin FEMA Vol. 2 No. 1 (2014)
Publisher : FT UNILA

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Meningkatnya jumlah kendaraan bermotor yang masih menggunakan bahan bakar fosil sebagai bahan bakar utama, menyebabkan cadangan bahan bakar fosil semakin menipis. Dengan kondisi seperti ini pemerintah telah mengurangi subsidi bahan bakar dan berencana menerapkan pembatasan pemakaian bahan bakar pada kendaraan bermotor. Fly ash batu bara dapat dimanfaatkan untuk menagtasi hal di atas. Pengujian fly ash ini dilakukan dengan beberapa variasi yaitu pengujian konsumsi bahan bakar, akselerasi, dan emisi gas buang. Konsumsi bahan bakar dilakukan dengan road test (pada kecepatan rata-rata 50 km/jam menempuh jarak 5 km) dan stasioner (pada putaran mesin 8500). Pengujian akselerasi dilakukan pada0-120 km/jam, serta pengujian emisi gas buang pada putaran 1500 dan 8500 rpm. Pelet fly ash yang dibentuk menjadi pelet berdiameter 10 mm dan tebal 3 mm dengan beragam variasi air(air mineral, aquadesh, dan air sumur bor), juga variasi temperatur dan waktu aktivasi fisik (2000 C, 1500 C selama 1 jam dan 2000 C, 1500 C selama 2 jam).Pelet fly ashtersebut dikemas dalam suatu frame dan diletakkan di dalam saringan udara kendaraan uji sepeda motor yamaha vixion 150 cc. Sehingga sebelum udara masuk ke dalam ruang pembakaran, udara terlebih dahulu terhambat dengan pellet fly ash.Dalam penelitian ini, terbukti pelet fly ash mampu menghemat konsumsi bahan bakar hingga 28,8% pada road test, dan sebesar 25,5% pada pengujian stasioner. Akselerasi meningkat sebesar 7,3%.Disamping itu, filter pelet fly ashbatubara mampu mengurangi kadar CO hingga sebesar 26,7% pada putaran 1500 rpm dan 45,5% pada putaran 8500 rpm, mengurangi kadar HC hingga sebesar 34,8% pada putaran 1500 rpm dan 30,4% pada putaran 8500 rpm. Kata kunci : Prestasi motor bensin 4 langkah, fly ash batubara, adsorben pelet fly ash.

PENGARUH VARIASI JENIS AIR DAN KONDISI AKTIVASI DARI ADSORBEN ARANG SEKAM TERHADAP PRESTASI MESIN DAN KANDUNGAN EMISI GAS BUANG SEPEDA MOTOR KARBURATOR 4-LANGKAH Pratama, Dian Eka; Wardono, Herry
Jurnal Ilmiah Teknik Mesin FEMA Vol. 2 No. 1 (2014)
Publisher : FT UNILA

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The fuel crisis is one of the problems that faced by the world and Indonesia today. To reduce the vehicle fuel consumption, it can be done by using charcoal from rice husk pellet. This research is done with some testing that is the runs test (road test and acceleration),stationary and emission testing. Charcoal pellets are packed in a frame and placed in the air filter on the absolute revo 110 cc motorcycle.In this study, the efficient use of water in the mixture of pellet making charcoal is the best zeolite water immersion results (H12Z20),the best activation conditions at a temperature of 150 C and the activation time of 2 hours. The charcoal pellets can save fuel by 15.72% on road test, and making the accelerate for 7.02% and save fuel consumption until 18.55% on a stationary test. Rice husk pellets are also proven to reduce vehicle exhaust emissions. it can reduce levels of CO and HC by 85,71% at 37,45% as well as increasing levels of CO by 6,70%.Keywords : performance, rice hulk charcoal pellets, charcoal adsorbent pellets, exhaust emissions.

PENGARUH VARIASI JENIS AIR DAN KONDISI AKTIVASI DARI ADSORBEN FLY ASH BATU BARA TERHADAP PRESTASI MESIN DAN KANDUNGAN EMISI GAS BUANG SEPEDA MOTOR KARBURATOR 4-LANGKAH Efendri, Denfi; Wardono, Herry
Jurnal Ilmiah Teknik Mesin FEMA Vol. 2 No. 1 (2014)
Publisher : FT UNILA

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The activated fly ash of coal as adsorbent pellets can be used to save fuel consumption. This research is done with some testing that is the runs test (road test and acceleration), stationary and emission testing. Fly Ash pellets packed in a frame and put on the air filter absolute revo 110 cc motorcycle. So before the air filter into the vehicle, it wil be contact with the pellets Fly Ash first. In this study, the most efficient types of water used is H12 Z20 and the best conditions was on the temperature 150o C and activation time of 1 hour with fuel savings in road test reached 12.69%, and fuel economy at a stationary test up to 22.65% and the reduction of travel time ( 0-80 km/h ) of 6.86%. Fly Ash pellets are able to reduce the levels of CO by 76,92 %, 19,57 % for HC levels and raise their levels of CO by 4,36 %.Keywords : Fly ash adsorbent pellets, engine performance, exhaust gas emissions

Co-Authors A.Yudi Eka Risano A.Yudi Eka Risano, A.Yudi Eka Abdul Aziz Abdul Kadir Fajarudin Abdullah Achmad Tarmizi Adi Ernadi afrisol putra Agus Sugiri, Agus Agustina Iryani, Dewi Ahmad Suudi Akhmad Riszal Aleksander Purba Amrizal Danur Sasongko Amrul Amrul Amrul Amrul Anandati, Ghea Maulidaco Andi Fiardi Andika Wiwaha Angelia Eka Salsabillah Anwar, Syaipudin Ari Andrew Pane Ari Andrew Pane, Ari Andrew Arief Andriansyah Armijon Armijon Arya Perdana, Guntur Aviati S., Yuniar Aziz, Sholhan Badaruddin, M. Bagus Rachmad Akbar Bagus Rachmad Akbar, Bagus Rachmad Bambang Supriyadi Basuki, Muji br Ginting, Simparmin Budiman Budiman Chandra Winata Pandapotan Chandra Winata Pandapotan, Chandra Winata Cheria Ayu Aditya Darmansyah DARMANSYAH . Darmansyah . Darmansyah . Darmansyah Darmansyah Darmansyah Darmansyah Denfi Efendri Denfi Efendri, Denfi Devi Permata Sari Devi Permata Sari Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Dhesta Ari Andut Dian Eka Pratama Dian Eka Pratama, Dian Eka Dikpride Despa Edy Hamid Eko Pujiyulianto Eko Putra Eko Wahid Apriansyah Erisha Putri Erlangga, Sona Febri Antonia Fiandra, Firda Ghea Maulidaco Anandati Gigih Forda Nama Ginting, Simparmin Boru Guntur Arya Perdana Hadi Prayitno Hadi Prayitno, Hadi Hariani, Pepi Harmen Hassanah, Mareta Heri Rustamaji Herti Utami Herti Utami Hidayat Suryanegara Huda, Zulmiftah Hutama, Saka Mahidaya Ika Kustiani Irza Sukmana Irza Sukmana Irza Sukmana, Irza Ishak Islamia, Ulfa Junaidi Supratman Junaidi Supratman, Junaidi Juwanda Alsya Kadek Edi Artana Kustiani, I. M. Dyan Susila M. Dyan Susila ES M. Haviz Mareli Telaumbanua Martinus Martinus Martinus, Martinus Medriansyah Meizano Ardi Muhammad Miranda, Thalya Muh Sarkowi Muhammad Abdillah Sjaheru Muhammad Budi Setiawan Muhammad Hanif Muhammad Hanif Muhammad Sarkowi Mundir Nikolaus Derry Chandra Nikolaus Derry Chandra Novian Korin A Novian Korin A, Novian Noviansah, Try Nurul Azmi, Nurul Oki Endrata Wijaya Panji Kurniawan Paundra, Fajar Praja, Rozak Putra , Ferly Indra Putri, Erisha Rahmadi, Ahmad Rahmansyah, Arif Rama Kapitan Ratna Widiyawati Ratna Widyawati Renardy, B Niko Risano, Yudi Eka A Risuli Utama Riszal, Akhmad Rizal Adi Saputra Rozak Indra Praja Sandy Dwi Hardin Santoso, Arief Adkha Sari, Putri Fitria Sarkowi, M Sepyanto, Weldy Sihombing, Gunawan Poniton R.P. Simparmin br Ginting simparmin ginting Siti Fatimah Solly Aryza Sri Ismiyati Damayanti Sri Waluyo Sri Waluyo Sugiyanto - Suharno Suharno Suharno Suharno Syamsul Arifin Tarkono Tarkono Tebu, Yohanes Yonathan Thalya Miranda Thohirin, Muh Tohari Tohari Toni Hidayat Trisya Septiana Ulfa Islamia Wijaya, Muhammad Niki Winata, B. F. Yesi Yandriani Yuli Darni Yunita , Diana Yusniati Eka Saputri

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