ar is a byproduct formed in the biomass gasification process due to the pyrolysis reaction of hydrocarbon compounds. The presence of tar in the gasification gas is a serious problem because it can clog the gas flow channel, reduce system efficiency, and disrupt the performance of advanced equipment. Therefore, efforts are needed to reduce the tar content to improve the quality of the gas produc…
This study investigates the tar content in an updraft gasifier modified with three gas outlet channels, namely the upper channel, the reduction channel, and the combustion channel, using coconut shell biomass as the feedstock. The research is motivated by the large potential of biomass resources in Indonesia and the main drawback of updraft gasifiers, namely the high tar content, which can disr…
The increasing emission of carbon dioxide has driven the need for the development of low-emission energy sources, one of which is Generation IV nuclear reactors. The Gas-Cooled Fast Reactor (GFR) is a fast reactor concept that offers high efficiency and improved potential for radioactive waste management. This study analyzes the core performance of a GFR based on the CANDLE burn-up concept usin…
A smart irrigation system was developed using dual telecommunication methods, namely radio wave and fiber optic communication, and integrated with the Alternate Wetting and Drying (AWD) method. A WNK8010 hydrostatic pressure sensor was employed to measure water level, achieving an average measurement error of 0.735%. The system was designed to assist farmers in monitoring paddy field irrigation…
Water availability throughout the growing season and limited fertile agricultural land remain major constraints in vegetable crop production, including kailan (Brassica oleraceae L. var. alboglabra), which has high nutritional and economic value. Therefore, innovations in irrigation systems and growing media are required to improve water use efficiency and crop yield. This study aimed to evalua…
This study evaluates the performance of a perforated pipe sprinkler irrigation system driven by a hand tractor with variations in tractor forward speed (1.5 km/h and 2 km/h) and vertical water spray direction (up and down), through measurements of discharge, theoretical and effective sprinkler irrigation capacity, system efficiency, infiltration, sprinkler intensity, soil elevation changes, tra…
This study aims to analyze the stability of coconut-shell biomass gasification in a modified updraft gasifier equipped with two gas outlets: a reduction zone outlet and a combustion zone outlet. The modification was implemented to evaluate operational characteristics, combustible gas stability, flame behavior, and performance differences between the two outlets. The reduction zone produced CO, …
Increasing electricity demand requires efficient and environmentally friendly power generation systems. Combined Cycle Power Plant (CCPP) have high efficiency levels because they combine the Brayton cycle in gas turbines and the Rankine cycle in steam turbines. The performance of Combined Cycle Power Plant is greatly influenced by gas turbine operating conditions, particularly ambient temperatu…
The increasing dependence on fossil fuels poses challenges to energy security, highlighting the need for renewable energy alternatives such as biomass. Coconut shell, a carbon-rich biomass waste, has significant potential to be converted into combustible gas through gasification. Although updraft gasifiers offer high efficiency, they are prone to excessive tar production, which can be mitigated…
This study aims to assess the stability of the coconut shell biomass gasification process using a modified updraft gasification reactor with three gas outlets: an upper outlet, a reduction outlet, and a combustion outlet. This modification was carried out to reduce tar formation, determine operational characteristics and flame stability, and compare the performance of the three outlets. The gas…
This research aims to understand the forms of mitigation and adaptation by women in climate change, as well as the process of women's awareness of efforts to mitigate and adapt to climate change in Pulau Semambu Village. The theories used in this study are W. Nick Carter's nonstructural mitigation theory and John William Bennett's adaptation theory. The method used in this research is qualitati…
This study is motivated by the underutilization of employment opportunities in the oil and gas sector by local workers due to limited competencies, restricted access to labor market information, and insufficiently integrated placement mechanisms. The study aims to analyze and model policy-based synergies between workforce empowerment and job placement policies as a strategy to reduce unemployme…
Peningkatan kebutuhan energi global serta meningkatnya polusi udara akibat penggunaan bahan bakar fosil mendorong penelitian intensif terhadap alternatif energi yang lebih ramah lingkungan. Di Indonesia, sepeda motor mendominasi hingga 85% kendaraan bermotor dan menjadi penyumbang terbesar emisi gas buang, terutama CO, HC, dan CO₂. Penggunaan teknologi mesin konvensional seperti karburator, d…
This research describes a bilateral cooperative relationship carried out by the government of Indonesia and REDD+ member countries in overcoming a phenomenon of greenhouse gas emissions caused by deforestation and forest degradation. REDD+ itself is an international initiative that aims to mitigate climate change by affecting the substantial contribution of deforestation and forest degradation …
Oil is one of the most important energy sources for human life. One of the common causes of the decline in oil production is the decrease in pressure in reservoirs, because the primary energy used to lift oil to the surface will be reduced over time. TheHall Plot method is most often used to analyze the performance of an injection well bymaking a curve, between pressures multiplied by a certain…
Background: Gastric malignant tumors are the sixth most common malignancy in the world and the fourth leading cause of cancer death in the world. Approximately 90% of gastric malignant tumor cases originate from the epithelium, namely adenocarcinoma. The etiology and main risk factors for gastric malignant tumors are caused by Helicobacter pylori infection. Symptoms of gastric malignant tumors …
This research is entitled Implementation of the Sexual Violence Prevention and Handling Task Force (PPKS) Program in Handling Sexual Harassment at Sriwijaya University. This research aims to find out, study and analyze the Implementation of the PPKS Task Force Program in Handling Sexual Harassment at Sriwijaya University. This type of research is Qualitative Descriptive using Policy Implementat…
This research focuses on landslide disaster mitigation measures in Siaga Durian Village and the obstacles faced by the village government in mitigating landslides. Natural disasters that often occur in Indonesia, especially in Durian Village, require actions to minimize or deal with disasters to prevent bad things from happening in the future. The aim of this research is to analyze and understa…
Ayam broiler adalah jenis unggas pedaging yang sering dibudidayakan karena masa panen yang cepat sehingga dalam waktu singkat dapat dipasarkan. probiotik adalah mikroba hidup yang digunakan sebagai pakan imbuhan dan dapat menguntungkan inangnya. Acidifier adalah bahan tambahan pakan yang digunakan untuk menurunkan pH untuk membantu metabolisme pencernaan hewan. Penelitian ini dilaksanakan pada …
Sprinkler irrigation is water that is sprayed into the air, so that when it falls it is like rainwater. Sprinkler irrigation can reduce surface runoff and the risk of soil salting, such as surface irrigation and drip irrigation. Based on the magnitude of the influence of irrigation on plant growth and overall production, research was conducted to apply the design of a bulk irrigation system wit…
This paper presents a coffee aroma detection system based on the Internet of Things (IoT) using gas sensors (MQ-3, MQ-4, MQ-5, MQ-135) and a DHT-11 humidity sensor. Data collection was conducted at the Robotics, Control, and Embedded Systems Laboratory, Faculty of Computer Science, Sriwijaya University, involving coffee aroma, temperature, and humidity readings. The gas sensors provided reading…
Feed additive are essential components in broiler chicken ration formulations, serving to improve growth performance, feed utilization efficiency, and gut health. The use of Antibiotic Growth Promoters (AGPs) has long been practiced due to their effectiveness in enhancing livestock productivity. However, concerns over antibiotic residues and antimicrobial resistance have prompted the search for…
This study aims to analyze the effect of coupon, maturity, bond rating, and SBI interest rate on bond prices in BUMN companies listed on the Indonesia Stock Exchange. The population in this study were all bonds of BUMN companies listed on the Indonesia Stock Exchange for the 2018-2019 period. The sampling technique used purposive sampling, so that from 7 BUMN companies obtained, as many as 32 s…
Methane gas is one of the main contributors to global warming and is difficult to detect directly because it is colorless, identification often relies on a distinctive odor, and exposure to high concentrations can be dangerous to health. Therefore, in this research, the design of a methane gas (CH4) detection device was developed. based on IoT ESP 32 which includes hardware and software to meas…