Department of Mechanical Engineering: Recent submissions
Now showing items 61-80 of 816
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INVESTIGASI GRADIEN TEKANAN DUA FASE UDARA AIR DAN GLISERIN (40-70%) PADA PIPA KAPILER DENGAN KEMIRINGAN 45° TERHADAP POSISI HORIZONTAL
(FT UMY, 2020-01-22)Aliran dua fase adalah aliran aliran multifase yang paling sederhana. Aliran dua fase terdiri dari 3 keadaan yaitu liquid-solid, gas-liquid dan gas-solid. Karakteristik dasar dari aliran dua fase meliputi pola aliran dan ... -
PENGARUH PENGGUNAAN BIODIESEL CAMPURAN MINYAK JARAK DAN MINYAK SAWIT DENGAN KOMPOSISI 1:1 TERHADAP UNJUK KERJA MESIN DIESEL
(FT UMY, 2020-01-23)Seiring dengan meningkatnya populasi manusia dan berkembangnya teknologi maka kebutuhan bahan bakar juga semakin meningkat, akan tetapi cadangan sumber daya minyak bumi yang berasal dari fosil semakin hari semakin menipis ... -
SIMULASI COMPUTATIONAL FLUID DYNAMIC PADA TANGKI SOLAR WATER HEATER BERISI AIR DENGAN VARIASI DEBIT AIR PADA PROSES DISCHARGING SECARA KONTINYU
(FT UMY, 2019-09-25)Solar Water Heater (SWH) memiliki kekurangan yaitu ketersediaan sumber energi panas matahari sangat terbatas oleh waktu dan keadaan cuaca. Thermal Energy Storage (TES) adalah metode yang tepat untuk mengatasi kekurangan ... -
KARAKTERISASI SIFAT MEKANIS DAN FISIS KOMPOSIT KENAF/SiO2/EPOXY DENGAN VARIASI PENAMBAHAN SILIKA
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-06-23)The development of technology related to renewable materials continues to be developed. Composite is one of the new materials that is developed sustainably. Its use begins to be combined with natural fibers which can be ... -
PENGARUH PENAMBAHAN KONSENTRASI KITOSAN TERHADAP SIFAT TARIK MEMBRAN PVA/KITOSAN DAN EFEKTIFITAS PENYEMBUHAN PADA LUKA ULKUS DIABETIKUM
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-05)Chitosan (Cs) and polyvinyl alcohol (PVA) are the natural and synthetic polymers, respectively, that have biocompatible, biodegradable, and non-toxic properties. Thus, they have been widely developed for wound dressing ... -
PENGUKURAN LAJU PELEPASAN KALOR SECARA KONTINYU PADA TANGKI SOLAR WATER HEATER BERISI AIR DENGAN VARIASI DEBIT AIR 1; 1,5; 2; 2,5 LPM
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-13)Solar Water Heater (SWH) merupakan pemanas air tenaga surya dengan energi surya sebagai sumber energi. Penggunaan air memiliki kelebihan yaitu konduktivitas termal tinggi, murah, dan mudah ditemukan, serta kekurangannya ... -
PENGARUH KEPUTUSAN INVESTASI, KEPUTUSAN PENDANAAN, KEBIJAKAN DEVIDEN DAN PROFITABILITAS TERHADAP NILAI PERUSAHAAN
(FAKULTAS EKONOMI DAN BISNIS UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-11-22)This study aims to examine the effect of investment decisions, financial decisions, dividend policy and profitability, on firm value. The object of this research is manufacturing companies listed on the Indonesia Stock ... -
PENGARUH JENIS MATRIKS TERHADAP SIFAT MEKANIS DAN FISIS KOMPOSIT HIBRID BERPENGUAT KENAF/SiO2
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-20)The composite fiber-reinforced kenaf (Hibiscus Cannabinus) has been developed mainly in the automotive industry. Kenaf fiber has better mechanical properties than most other natural fibers such as sisal, cotton, jute, and ... -
KARAKTERISASI SIFAT MEKANIS KOMPOSIT HIBRID ABAKA/KARBON/PMMA DENGAN VARIASI WAKTU ALKALISASI SERAT ABAKA
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-10)Natural fiber have been developed as composite reinforcing materials, because they are relatively inexpensive and have high strength. The development of natural fiber composites increases every year. Research on natural ... -
PENGARUH PANJANG SERAT CARBON TERHADAP SIFAT FISIS DAN MEKANIS KOMPOSIT HIBRID SISAL/CARBON/HIGH DENSITY POLYETHYLENE (HDPE)
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-03)The rapid technological development made the industries compete to create newer innovations, to improve product quality, competitiveness, and environmentally friendly. One of the innovative materials is the material for ... -
PENGARUH FRAKSI VOLUME SERAT TERHADAP SIFAT MEKANIS DAN FISIS KOMPOSIT HIBRID KENAF/ SILICA FUME /EPOXY
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-19)Composite reinforced with kenaf fiber (Hibiscus Cannabinus) has been developed in the automotive industry specifically for interior and exterior cars. However, for the automotive application, the mechanical properties ... -
ANALISIS TEGANGAN PIPA, DEFLEKSI, DAN PEMERIKSAAN KEBOCORAN FLANGE PADA JALUR 170-ACF0001-A2A3R-18”-ST RFCC DI PT. PERTAMINA (PERSERO) REFINERY UNIT IV CILACAP
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-05-27)Piping system is used to move fluid from one place to another desired. Piping system has the potential to occur in a critical pipeline. Critical pipeline is a path that is suspected of experiencing excessive stress and is ... -
SIMULASI COMPUTATIONAL FLUID DYNAMICS (CFD) ALIRAN FLUIDA PADA POMPA HIDRAM
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-20)Hydraulic pump utilizes continuous impact energy from water. The energy from the collision is used to pump water, so the hydram pump does not require external energy. The fluid flow at the hydraulic pump needs to be ... -
INVESTIGASI POLA ALIRAN DUA FASE UDARA AIR DAN GLISERIN (40 – 70 %) PADA PIPA KAPILER DENGAN KEMIRINGAN 45o TERHADAP POSISI HORIZONTAL
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-20)Two-phase flow is the flow that flows in a channel at one time simultaneously consisting of two phases / forms of fluid (liquid-gas, liquid-solid, gas-solid). In the two-phase flow of distribution, each phase is very ... -
INVESTIGASI GRADIEN TEKANAN DUA FASA UDARA AIR DAN GLISERIN (40-70%) PADA PIPA KAPILER DENGAN KEMIRINGAN 30° TERHADAP POSISI HORIZONTAL
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-07-20)Two-phase flow is the flow that flows in a pipe at one time and area simultaneously with more than one phase or form of a fluid. Two-phase flow is the science that examines basic parameters with the simplest multi-phase ... -
PENGARUH KONSENTRASI NANOEMULSI KITOSAN (NeCS) TERHADAP STRUKTUR SERAT DAN SIFAT TARIK MEMBRAN NANOFIBER PVA/NeCS
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-08-28)Kitosan dan polyvinyl alcohol (PVA) merupakan bahan polimer yang paling sering dikembangkan untuk aplikasi biomedis dalam beberapa tahun belakang ini, karena memiliki sifat diantaranya tidak beracun, biokompatibel, fleksibel. ... -
PENGUKURAN LAJU PELEPASAN KALOR SECARA KONTINYU PADA TANGKI SOLAR WATER HEATER DENGAN KAPSUL BERISI PARAFFIN WAX DENGAN VARIASI DEBIT AIR 1; 1,5; 2; 2,5 LPM
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-08-19)Solar Water Heater (SWH) is a technology that can be used as a water heater by harnessing the sun’s energy. SWH used water as a storage device normally. Water use has a shortage of them low energy density, requiring ... -
STUDI EKSPERIMENTAL PENYIMPANAN ENERGI TERMAL PADA TANGKI PEMANAS AIR TENAGA SURYA BERBASIS PCM : METODE EKSPERIMEN INDOOR
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-09-23)Solar water heater (SWH) is one of the applications of solar energy thermal technology that serves to produce hot air to fulfill household and industrial. The fluctuation of solar radiation intensity leads to research ... -
PERANCANGAN DAN PEMBUATAN TANGKI THERMAL ENERGY STORAGE PADA ALAT UJI SIMULASI PEMANAS AIR ENERGI SURYA
(FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH YOGYAKARTA, 2019-09-25)Solar Water Heater (SWH) is a solar water heater utilizing solar energy. Solar Water Heater (SWH) has a storage medium in the form of water that has a low energy density that happens in the need for a large volume of TES ... -
UNJUK KERJA MESIN DIESEL BERBAHAN BAKAR BIODIESEL CAMPURAN MINYAK JARAK DAN MINYAK SAWIT DENGAN KOMPOSISI 3:7
(FT UMY, 2020-01-14)Consumption of fuel will continue to increasing the needs development of community in all sectors. Petroleum fuel that is often used is diesel fuel, but its use is massive so that scarcity occurs. Therefore, it is necessary ...