Claim Missing Document
Check
Articles

Found 21 Documents
Search

ANALISIS MANIFESTASI PANASBUMI MENGGUNAKAN METODE MAGNETIK DI PARANGWEDANG, KABUPATEN BANTUL Rena Juwita Sari; Listriyanto Listriyanto Listriyanto; Syamsul Ma'arif; Wira Widyawidura
KURVATEK Vol 3 No 2 (2018): November 2018
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v3i2.888

Abstract

Parangwedang, Parangtritis Kabupaten Bantul berpotensi untuk pemanfaatan energi panasbumi. Terlihat ditemukannya manifestasi panasbumi yaitu mata air panas. Penelitian  ini bertujuan untuk memperkirakan potensi energi panasbumi Parangwedang, serta membuat skema pemanfaatan potensi panasbumi sebagai rekomendasi untuk digunakan di daerah tersebut. Analisis yang digunakan dalam penelitian ini yaitu Analisis geologi dan analisis geofisika. Hasil analisis menggunakan metode Magnetik menunjukkan pola intensitas rendah berwarna biru dibagian selatan dengan dimensi klosur sekitar 100 meter dengan nilai berkisar antara 160 – 0 nT dan  diduga sebagai pola heat source yang dimungkinkan menjadi sumber air panas pada daerah ini dan diduga disebabkan oleh sesar bearah timurlaut-baratdaya. Klosur yang diduga sebagai sumber panas memiliki dimensi yang cukup kecil dan posisinya cukup dangkal dengan perkiraan keberadaan anomali berada pada kedalaman 200 – 300 meter. Berdasarkan kajian yang telah dilakukan disimpulkan bahwa daerah Parangwedang merupakan daerah prospek panasbumi. Dilihat manifestasi berupa mata air panas sebagai daya tarik pariwisata, tetapi untuk dimanfaatkan sebagai pembangkit listrik tenaga panas bumi (PLTP) skala kecil perlu dilakukan studi lebih lanjut.Kata kunci : Parangwedang, Panasbumi, Metode Magnetik, PLTP
Pengaruh Suhu terhadap Rendemen dan Nilai Kalor Minyak Hasil Pirolisis Sampah Plastik Wirawan Widya Mandala; M Sigit Cahyono; Syamsul Ma`arif; H B Sukarjo; Wardoyo Wardoyo
Jurnal Mekanika dan Sistem Termal Vol 1, No 2: Agustus 2016
Publisher : Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (770.345 KB)

Abstract

Plastic waste is one type of waste that would disturb the environment if it is not handled properly. Alternative treatment to solve this problem is by using pyrolysis technology that enable to convert plastic waste into fuel oil, charcoal, and non-condensable gas. The success of pyrolysis technology is influenced by several factors, including the type of reactor, the particle size, the processing time, and the temperature of the pyrolysis process. The purpose of this study was to determine the effect of temperature on the yield and the calorific value of plastic pyrolysis oil. Based on the experiments, increasing the temperature, the yield of the oil produced and calorific value will be higher. The yield and the highest calorific value generated for the pyrolysis process at a temperature of 400 0C, are 44% and 10,292 cal/ g respectively.
Studi Kelayakan Ekonomi Pembangunan PLTD Sistem Dual Fuel dengan Gasifikasi Sekam Padi Kapasitas 50 kVA Syamsul Ma`arif; Rena Juwita Sari; Mochamad Syamsiro
Jurnal Mekanika dan Sistem Termal Vol 1, No 1: APRIL 2016
Publisher : Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1202.375 KB)

Abstract

Electrification ratio in Special Distric of Yogyakarta in 2015 still under 100%, but 100% villages has been electrified. It shows that several houses which far from village which has not been electrified. The alternative solution is to build a small power plant by utilizing rice husks which are quite abundant in Yogyakarta. Diesel Power Plant (PLTD) by dual fuel system studied had a capacity of 50 kVA. Dual fuel system is combination of diesel fuel and synthetic gas from gasification of rice husks. This study is discussed about potential of rice husks, gasification equipment design, electrical distribution, and economic feasibility studies. The results showed that 0.2% of rice husks in Yogyakarta is enough to fulfill fuel requirements of PLTD by dual fuel system. Comparison of fuel requirements in PLTD by dual fuel system is 40% or about 4.72 liters/hour of diesel fuel and 60% synthetic gas from gasification of rice husk as much as 33.19 kgs/hour. Reactor is designed to fulfill gasification process for 2 hours every batch. The system produced 31.68 kWh distributed to 2 home industries, 48 households with each capacity is 450 VA, and street lighting. Investment to build PLTD by dual fuel system is Rp. 700,310,500.00 and operational & maintenance costs is Rp. 458,196,000.00 per year. The economic feasibility study to build PLTD by dual fuel system is claimed feasible if minimum price of electricity is Rp. 2,417.00 which gain NPV and IRR of Rp. 568,819.00 and 12.03%,respectively and payback period of 4 years.
Turbin Air Arus Sungai Model Sudu Propeller Menggunakan Nozzel-Diffuser Rendi Rendi; Sobar Ihsan; Syamsul Ma'arif
Jurnal Engine: Energi, Manufaktur, dan Material Vol 4, No 1 (2020)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v4i1.649

Abstract

The application of river flow water turbines as energy sources often experiences obstacles such as the changing speed of river water flow and low turbine efficiency. This obstacle can be overcome by creating an effective and efficient river flow turbine. One way to overcome these obstacles is to add a propeller and diffuser on the turbine. This study aims to determine the value of turbine efficiency from the results of field experiments using a prototype of a river flow water turbine with a propeller blade model and to use a nozzle-diffuser. The method used is to design a river flow water turbine with propeller and diffuser, then prototype testing is carried out in the Amandit River. Data generated from field testing were analyzed to determine the value of turbine efficiency. The test results show that the prototype of a river current water turbine using a nozzle-diffuser can work well at water speeds of 0.5 m/s to 1.1 m/s. The higher the speed of the water, the higher the turbine rotation speed, the higher the torque value, and the higher the turbine power. At a water velocity of 0.5 m/s, a turbine rotation speed of 58 rpm with a torque of 0.875 N.m, while at a water speed of 1.1 m/s, a turbine rotational speed of 115 rpm with a torque of 1.250 N.m. At all water speeds and turbine speed, the turbine efficiency is fixed at 44%.
Statistical Process Control (SPC) and Fuzzy-Failure Mode and Effect Analysis (F-FMEA) Approaches to Reduce Reject Products in Wine Bottle Rack Production Process at PT Alis Jaya Ciptatama Nikma Wahyu Nurdaningsih; Elly Wuryaningtyas Yunitasari; Syamsul Ma'arif
OPSI Vol 15, No 2 (2022): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v15i2.7567

Abstract

PT Alis Jaya Ciptatama (AJC) is a company engaged in the furniture industry, where the products are exported. One of the products from PT AJC is a wine bottle rack. In the production of wine bottle racks at PT AJC, many product defects were found. Therefore, it is necessary to conduct further research to determine the quality of the product, so that the correct product quality improvement is obtained. The purpose of this study was to determine the limits of statistical control and the factors causing defects in wine bottle racks so that the quality improvement provided was right on target. The methods used in this research are Statistical Process Control (SPC) and Fuzzy Failure Mode and Effect Analysis (F-FMEA). SPC method is used to determine statistical control limits and factors causing product defects. The F-FMEA method is used to determine the priority of improvement in improving the quality of wine bottle racks. The results of the research related to the statistical control limits of the SPC method were obtained that the defective data were outside the statistical control limits. While the results of research related to the causes of product failure using the SPC method are human, machine, material, environmental, method, and measurement factors. Factors causing product failure were analyzed using the F-FMEA method so that improvement priorities were obtained, namely the lack of experience of workers with an FRPN value of 269.33. Improvements that need to be made by PT AJC include providing training to mill 1 workers and splitting the logs.
Perancangan Desain Kemasan Gudeg Jogja dengan Menggunakan Metode Quality Function Deployment (QFD) Dyah Ari Susanti; Syamsul Ma'arif; Emmy Nurhayati; Dinda Zulmarihana; Atala Rohman Dharu
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 2 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i2.1359

Abstract

This research was conducted to design packaging for typical Yogyakarta food products, Gudeg Jogja. Gudeg is known as a special food from the Special Region of Yogyakarta which is made from jackfruit cooked in coconut milk. As a typical food, Gudeg is often used as gift. Along with the need for Gudeg for souvenirs, various kinds of Gudeg packaging appeared on the market. The Quality Function Deployment (QFD) method is used to bring together what consumers want and then what producers can do to fulfill consumer desires. This method is used to design Gudeg packaging according to the needs of consumers. This product design development research uses a questionnaire as a data collection tool. The data is obtained from consumers and then processed. After knowing the results of data processing from the data that has been collected then a House of Quality is created. The result of this research is the design of Gudeg Jogja packaging that suits consumer needs.
A Review of Strategies for Managing Uncertainty in Crude Oil Prices by Indonesian Oil and Gas Companies and the Government Syamsul Ma'arif; Dyah Ari Susanti; Dian Tiara Rezalti; Aisyah Indah Irmaya; Lia Yunita; Dila Damayanti; Yunita Fitri Wahyuningtyas
Jurnal Offshore: Oil, Production Facilities and Renewable Energy Vol 6, No 2 (2022): Jurnal Offshore: Oil, Production Facilities and Renewable Energy
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jo.v6i2.1449

Abstract

The world oil and gas market has experienced uncertainty since 2014 until now. Fluctuating supply and demand, geopolitical tensions, and shifts in energy policies cause this. In addition, at the beginning of 2020, there was a prolonged pandemic, which made oil and gas conditions even more erratic. This uncertainty significantly impacts the Indonesian state, especially the Indonesian government and oil and gas companies operating in Indonesia. Various methods have been taken to mitigate the impact of this uncertainty, both by the government and oil and gas companies. Therefore, this study aims to conduct a literature review regarding the strategies undertaken by the Indonesian government and oil and gas companies in Indonesia to address the uncertainty in world oil prices since 2018. This research was conducted using the literature method. A review of scientific articles that have been published from 2018 to 2022. The selected articles follow the research objectives and comply with the inclusion and exclusion criteria set at the outset. Results of the literature process the review obtained as many as 67 articles that discussed various strategies carried out by the government and oil and gas companies. The discussion results show three strategies carried out by oil and gas companies in Indonesia: cutting costs, implementing digitalization, and diversifying into renewable energy projects. Meanwhile, the strategy undertaken by the Indonesian government includes providing fiscal incentives, investing in infrastructure that supports the oil and gas sector, deregulating the oil and gas sector, and encouraging the use of renewable energy as an alternative energy source. These various strategies aim to increase efficiency, reduce costs, diversify energy sources, and increase competitiveness in Indonesia's oil and gas sector to deal with the uncertainty of world oil prices.
Diseminasi Penggunaan Kompor Biomassa dan Pelet Biomassa pada Kelompok Pelaku Usaha Minuman Serbuk Herbal Syamsul Ma'arif; Elly Wuryaningtyas Yunitasari; Kusmendar Kusmendar; Shanta Rezkita; Nikma Wahyu Nurdaningsih; Paulina Retno Anjani Sugito; Ricky Novan Pradhana
Randang Tana - Jurnal Pengabdian Masyarakat Vol 6 No 1 (2023): Randang Tana - Jurnal Pengabdian Masyarakat
Publisher : Unika Santu Paulus Ruteng

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36928/jrt.v6i1.1469

Abstract

Rumpoen business group has a business making herbal powder drinks. The business is growing during the pandemic because herbal drinks can increase endurance. However, making herbal powder drinks requires much energy in the crystallization process. High energy needs affect the determination of product prices. As such, alternative technologies are needed to overcome them. The technology is a biomass stove with the principle of gasification technology that can produce higher heat energy than ordinary stoves. The purpose of this community service activity is to introduce biomass stoves as an alternative technology and biomass pellets made from production dregs waste. Activities were carried out through technology dissemination and presentations and ended with discussions, questions, and answers. Then all participants were asked to fill out a questionnaire to evaluate this community service activity. The evaluation results, related to the service activity's purpose, showed a level of 100%, from which the participants knew and understood the use of biomass stoves and the utilization of dregs waste into biomass pellets. However, the participants' interest in implementing the activity results only reached 60%. Overall, the participants stated that the level of satisfaction with community service activities was 4.8 out of a scale of 5. The participants hoped for more intensive service activities, additional training, and additional equipment assistance.
Quality Control on Bogo Helmet Coating Process Using the Six Sigma Method, Fault Tree Analysis (FTA) and Failure Mode and Effect Analysis (FMEA) Paulina Retno Anjani Sugito; Elly Wuryaningtyas Yunitasari; Syamsul Ma’arif
Jurnal Engine: Energi, Manufaktur, dan Material Vol 7, No 1 (2023)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v7i1.1416

Abstract

Hanesda Assembling Helmet is a private company engaged in the assembly of bogo helmets. One of the serious problems faced by this company is that the defective products produced in the production process reach 4% of the tolerance limit set by the company, which is 1.5%. The purpose of this research is to control the quality of the coating process which has a lot of product defects. The method used in this study is the Six Sigma method with the stages of DMAIC. The method used to analyze the causes of failure is the FTA method and the method used to determine the weighting in prioritizing the repair design is the FMEA method. The results of the research using the Six Sigma method are obtained DPMO values of 19,931 with a Sigma level of 3.57. Types of defects that have the highest RPN are streak defects, flex defects, uneven paint defects and paint runs defects with an RPN value of 112. High RPN value will be prioritized for improvement plans.
Peran Perilaku Berkelanjutan dalam Manajemen Lingkungan untuk Pengembangan Desa Wisata Berbasis Energi Terbarukan Syamsul Ma'arif; Rini Eka Sari; Nurul Myristica Indraswari
Seminar Nasional Penelitian dan Abdimas Vol 1 No 1 (2023): Juni
Publisher : Lembaga Penelitian dan Pengabdian pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/senapas.v1i1.7388

Abstract

This study examines the crucial role of sustainable behavior in environmental management for the development of renewable energy-based tourism villages. Sustainable behavior is of utmost importance in creating economically, socially, and environmentally sustainable tourism villages. The aim of this research is to integrate the concepts of sustainable behavior, environmental management, and renewable energy-based tourism village development. The research method employed is a literature review, focusing on relevant scholarly articles published in English or Indonesian after 2018. The findings indicate that sustainable behavior plays a significant role in environmental management within tourism villages, through the sustainable management of natural resources and the implementation of practices that support sustainability. The utilization of renewable energy sources in tourism village development also has positive impacts on the environment. By adopting sustainable behavior, renewable energy-based tourism villages have the potential to serve as inspiring examples in sustainable tourism development that prioritizes environmental preservation and the well-being of local communities. Furthermore, further actions are needed, including educational programs, stakeholder partnerships, the use of sustainable infrastructure, and the empowerment of local communities within the context of renewable energy-based tourism village development.