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All Journal Jurnal Energi Dan Manufaktur BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Jurnal Ilmiah Teknik Mesin Poros Teknologika Mestro Prosiding SNTTM SEMINAR TEKNOLOGI MAJALENGKA (STIMA)
Hery Sonawan
Universitas Pasundan Bandung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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Journal : Mestro

 1 
Decreasing In Freshwater Production Due To Vacuum Pressure Decreasing On Multi Effect Distillation Installation Hery Sonawan; Muhamad Deary; Auliansyah Afrianthoni
Mestro Vol 3 No 02 (2021): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v3i02.368

Abstract

A case study in a steam power plant has been conducted and reported. There was a case of decrease in the freshwater production rate in multi effect distillation installations that may disrupt the operation of the power plant. The cause was suspected by the drop in vacuum pressure in the evaporation chamber. The study was conducted by studying the MED installation process diagram and performing the theoretical calculations of energy and mass equilibrium in each chamber. To make it easier to find the properties of water in the energy calculation then add ins water_97 in Microsoft Excel is added.Calculations were undertaken in two modes, commissioning period and 2016 operation mode. The difference of the two modes was vacuum pressure level in each chamber. Vacuum pressure level in 2016 operation mode was lower than commissioning mode. The calculation at commissioning mode resulted in a production rate of 133.56 ton/h, while the actual condition at that time was 127 ton/h. Calculations in 2016 operation mode produced a theoretical fresh water production rate of 101.37 ton/h.
Performance Testing of Cross Wind Turbine Model with Capacity of 10 W Achdi, Endang; Sonawan, Hery; Setiadi, Yudi
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.527

Abstract

Wind is a significant potential renewable energy source for electricity generation. Currently, there are two commonly used types of wind turbines: horizontal-axis and vertical-axis wind turbines. Both types are designed to harness the energy from horizontally moving wind. However, in reality, wind often moves erratically, especially in urban areas with tall buildings. To address this, a cross-axis wind turbine model has been developed to capture energy from randomly moving wind. This turbine model has 10 horizontal blades and 5 vertical blades. Previously, performance testing of this wind turbine model used a 60 W capacity dynamometer generator, but the wind turbine's output power didn't reach the required high torque and rotational speed. In this research, a 40 W capacity generator was used to resolve the previous issues. The parameters measured in this testing include wind speed, turbine rotational speed, voltage, and current. The testing was conducted at wind speeds of 5.3 m/s, 5.8 m/s, 6.3 m/s, and 6.8 m/s, with variations in the blade pitch angles set at 20°, 25°, and 30°. The results of the testing and analysis showed that the maximum performance coefficient of this wind turbine was 7.54%, achieved at a wind speed of 6.3 m/s with a blade pitch angle of 25° and a tip speed ratio of 1,08. The higher the wind speed, the shorter the time required to reach a constant rotational speed. At a wind speed of 6.3 m/s with a blade pitch angle of 25°, it took 30 seconds to reach a constant rotational speed.
Performance Test of Commercial Air Coolers with Cooling Pads Made from Banana Midrib Fiber and Honeycomb Sonawan, Hery; Sofia, R Evi
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.530

Abstract

The use of air conditioning equipment in dry season is very necessary. Several users have used Air Conditioner (AC) as air conditioning, although there are users who apply air coolers which are considered more environmentally friendly air conditioning. An air cooler is a tool that cool the air while increasing the humidity. This tool uses the principle of the water evaporation process to cool the air or is called an evaporative cooler. In this paper, the performance of a commercial air cooler that uses a built-in cooling pad in the form of honeycomb is reported and its performance is compared with a cooling pad made from banana midrib fiber material.By implementing experiments on commercial air coolers, experiments were carried out by measuring the airflow in the air cooler using Arduino-based data acquisition. From the experiments, the built-in cooling pad has better performance than banana midrib fiber. The decrease in airflow temperature when using a honeycomb cooling pad reaches 0.8 ℃, slightly higher than banana midrib fiber which reaches 0.6 ℃. Honeycomb saturation efficiency is also higher, reaching 50 – 85% compared to 40 – 70% for banana midrib fiber. Likewise, the EER value of honeycomb is higher than banana midrib fiber. However, banana midrib fiber has great potential if it is used as a cooling pad material, it can be used as an alternative material for evaporative coolers.
Co-Authors Agus Siswanto Alqurin, Wais Auliansyah Afrianthoni Endang Achdi Endang Prihastuty, Endang Erfan Subiyanta, Erfan Evi Sofia Gusti Fachrezy, Alrestu Hermawan, M. Reza Ir. Gatot Santoso Junial Heri Kasim, M. S. Kwintarini, Widiyanti Muhamad Deary mulyono, darajat Novahardi, Mi’raj Nur Rohman, Deni Omar, Ghazali rohadin, rohadin Sidik, Fachrul Sumartono, M. R. Tamaldin, Noreffendy Tohasan, Achmad Toto Supriyono, Toto W. Djoko Yudisworo Wasiran, Wasiran Wawan Yudi Setiadi