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All Journal Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi
Muhrom Khudhori, Muhrom
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Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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PEMANFAATAN KOLEKTOR SURYA SEBAGAI ENERGI ALTERNATIF DESALINASI AIR LAUT UNTUK MENGATASI KRISIS AIR BERSIH Setiabudi, Dedet Hermawan; Khudhori, Muhrom
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 (111.131 KB)

Abstract

This research examined the effect of air velocity and the efficiency of double-pass flat plate solar air heater with two glass covers on the performance of solar desalination unit based on heat pump with using humidification and dehumidification processes. This unit consists of a heat pump, humidifier, dehumidifier, and double-pass flat plate solar air heater with two glass covers. The research was conducted in an indoor experiment. Solar energy generated from solar simulator using halogen lamps. In this research the air flow rate was varied at 3 metres per second, 4 metres per second, 5 metres per second, and 6 metres per second, while the intensity of solar radiation at 828 Watts per meter squared. At each variation in air velocity, sea water temperature was conditioned at a constant temperature of 45 degrees celcius, the compressor was operated at a constant rotation of 900 rpm, volumetric flow rate of sea water inlet 300 liters per hour into humidifier and sea water in this system was re-circulated. The research result showed that the volume of fresh water production increases with increasing air velocity inlet into humidifier. This solar desalination unit could produce fresh water maximum 2470 milliliters per hour in air velocity 6 metres per second.
MODIFIKASI GENSET BERBAHAN BAKAR HYBRID DI PILOT PLANT DME BERBAH Khudhori, Muhrom
SENATIK STT Adisutjipto Vol 1 (2013): Kreativitas Anak Bangsa untuk Kemajuan Teknologi dan Informasi
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.75 KB) | DOI: 10.28989/senatik.v1i0.52

Abstract

Genset modified with biogas, when biogas empty genset can’t used gasoline. Beside that, when genset operated with biogas are corrosion at fuel system, because in the biogas are water steam. So to solution this problems must to research modifications genset with hybrid fuel (biogas-gasoline). A research with modified on carburetor to assembly venturi mixer. Step a research are engineering design, manufacturing design, and performances test  genset modified. Performance parameters are power (watt), voltage (volt), frequency (Hz) and current (ampere).  The conclusion of the research are the genset can operate with carburetor modified, and optimum performances at throttle open 25%. On load 0 the result are voltage 212 Volt, frequency 50,9 Hz, current 0,01 A, power 0 watt, with 800 result voltage 196 Volt, frequency 31,5 Hz, current 2,89 A, power 594 watt. Optimum 700 watt with result voltage 217 volt, frequency 44,3 Hz, current 3,09 A, power 694 watt.
OPTIMALISASI LETAK NOZZLE VENTURI MIXER PADA GENSET BERBAHAN BAKAR BIOGAS Khudhori, Muhrom
SENATIK STT Adisutjipto Vol 1 (2013): Kreativitas Anak Bangsa untuk Kemajuan Teknologi dan Informasi
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (569.481 KB) | DOI: 10.28989/senatik.v1i0.53

Abstract

Carburetor modification to the venturi mixer to put a hole in the center of the venturi (end of hole venturi type nozzle on the outlet end venturi section) can turn the engine generator using biogas fuel. Airflow velocity carburetor venturi section will begin upon entering the venturi section and will be maximal at the time in the middle of the venturi section. So of course the location of the placement of venturi carburetor venturi mixer on the right cross section will be obtained velocity airflow + optimum biogas. It is necessary for optimizing the placement location of the modification of the carburetor venturi mixer, air flow + in order to obtain optimum biogas which will have implications for the performance of the generator engine. In this research, manufacture three prototypes nozzle venturi mixer that will be placed at different places in the venturi duct, then the performance test was done to determine the type and location of the venturi nozzle prototype mixer is optimal. From the results of this study that : 1) Prototype nozzle venturi mixer with the tip of the nozzle in the middle (shape elbow) has the most complicated construction than the second type (type 1 and 2) the other. Manufacturing and assembly to form the elbow (type 3) is also more complicated and more difficult , this is because the space available / remaining biogas is limited to hole channel, and 2) Using a prototype generator machine type 3 is more stable when compared with other types, despite the decline, but not very significant in comparison with the other 2 types, so the prototype mixer venturi nozzle is the most optimal type 3 (square shape).
Co-Authors Dedet Hermawan Setiabudi, Dedet Hermawan