ABSTRACT Voltage drop in distribution networks can reduce power supply quality and system efficiency. One solution to address this issue is the placement of Distributed Generation (DG) within the distribution network to improve voltage profiles and reduce power losses. This study aims to determine the optimal DG placement using the Particle Swarm Optimization (PSO) method to minimize voltage d…
ABSTRACT Microhydro Power Plant (MHP) is an efficient renewable energy source for remote areas. However, fluctuations in load and water discharge can cause frequency changes that affect system stability. To overcome this problem, this research designs and viiinalyses an Electronic Load Controller (ELC) based on Fuzzy PI Controller to maintain frequency stability in MHP. The Fuzzy PI controller…
ABSTRACT The reliability of the electrical system is crucial for the operation of a building and must comply with PUIL 2011 and the Building Function Feasibility Standard (SLF). Building C of the Faculty of Engineering at Universitas Riau has been in operation for over 20 years without a comprehensive evaluation of its electrical system. This study aims to assess the feasibility of the electri…
ABSTRACT Accidents are one of the problems that often occur on the highway, which can cause huge losses to society. Due to the large losses caused by accidents, special studies are needed in determining accident-prone locations and handling accidents in the future. In this study, a case was taken on the Kuok - Rantau Berangin road section. Secondary data in the form of completed reports obtain…
ABSTRACT This study aims to evaluate the condition of pedestrian pathways in the Educational and Office Area of Gobah, Pekanbaru, using the Global Walkability Index (GWI) method. This method assesses walkability levels based on nine parameters, including conflicts with other modes of transportation, availability of pedestrian facilities, crossing safety, and supporting infrastructure. The …
ABSTRACT This study aims to evaluate the effectiveness of Weather Modification Technology (WMT) in influencing rainfall, hotspots, burned area, and drought index in Ketapang Regency, West Kalimantan, over the period 2019–2023. The data utilized in this study include rainfall data from CHIRPS, hotspot data from NASA’s FIRMS system, burned area assessed using the Differenced Normalized B…
ABSTRACT Waste arising can be sourced from residential and non-residential areas. One of the non-residential areas that has the potential to generate high levels of waste is the Education (University) area. Waste management at Riau University is currently carried out using the collect, transport and dispose method. Until now, there has been no further waste processing implemented at Riau Unive…
ABSTRACT Melamine is a chemical that has the formula C3H6N6 with another name 2-4-6 triamino 1-3-5 triazine. The need for melamine in Indonesia in the last five years was 133,803,190,000 tons. The main raw material in melamine synthesis is urea, which can be obtained domestically thanks to Indonesia's significant urea production. Establishment of a melamine factory to reduce the need for impor…
ABSTRACT Cumene is considered a basic chemical product because it is used as a raw material in the production of various other important chemical products. For one, cumene is used to produce acetone, which is the base material for various products such as solvents. Cumene is sold to subsequent chemical industries to produce plastics, resins, solvents, paints or other chemical products and …
ABSTRACT Microhydro Power Plant (PLTMH) is an efficient renewable energy solution for areas with low water flow rates. One of the most commonly used turbines in this system is the screw turbine (Archimedes Screw), which operates optimally at low inclination angle differences (Head). This study aims to analyze the effect of varying screw turbine inclination angles on system performance, includi…
ABSTRACT This study discusses the effect of water discharge variations on the performance of Microhydro Power Plants (PLTMH) using screw turbines (Archimedes Screw Turbine). Testing was carried out by varying the water discharge at turbine inclination angles of 40°, 50°, and 60°. The water discharges used in this test were 0.008 m³/s, 0.014 m³/s and 0.016 m³/s. The parameters analyzed in…
ABSTRACT Tidal floods are floods caused by rising sea water, where the rise is higher than the shoreline or land. The tidal floods that occurred in Dumai City caused considerable losses. Tidal floods not only inundate residential areas but also inundate roads, causing disruption to residents' activities in industrial movements. This study aims to simulate the drainage network using EPA SWM…
ABSTRACT Ammonia is a compound formed from the bonding of hydrogen and nitrogen atoms which is a gaseous compound at ambient temperature that has a sharp odor and is stored in liquid form. The main use of ammonia compounds is as a raw material in making chemical fertilizers such as UREA and NPK. Apart from that, ammonia is also commonly used as a cooling agent and in the pharmaceutical field i…
ABSTRACT Paraxylene is an aromatic hydrocarbon compound with molecular formula C8H10. Paraxylene is used as a raw material for several end products such as pure terephthalic acid (PTA) or dimethyl terephthalate (DMT). Terephthalic acid (PTA) and dimethyl terephthalate (DMT) can be processed as materials for the plastic and textile industries. In addition, paraxylene is used as a resin mate…
ABSTRACT Polyvinyl Alcohol (PVOH) is one of the compounds classified in the group of acetylene derivative compounds. Polyvinyl Alcohol is made from polyvinyl acetate and methanol raw materials. The factory is planned to be built in Dumai City, Riau, Indonesia. Dumai City was chosen to facilitate access to raw material fulfillment. The PVOH factory was built with a capacity of 50,000 tons/year.…
ABSTRACT Ammonia is a raw material in fertilizer production. Ammonia is produced by reacting synthesis gas containing H2 and N2 with a ratio of 3: 1. Synthesis gas contains inert gases that do not react such as Argon, in addition to H2 and N2. H2 gas comes from hydrocarbons found in natural gas and N2 gas from free air. Natural gas used as raw material for production before being processed int…
ABSTRACT Linear Alkylbenzene (LAB) is an isomer of long-chain alkylbenzene. Its general chemical formula is represented as C6H5CxH2x+1, where x ranges from 10 to 16. LAB has been used as a key ingredient in detergents to produce environmentally friendly and biodegradable products. The demand for LAB is expected to grow due to increased public awareness of cleaning and hygiene products. The ris…
ABSTRACT Sulfuric acid is the most widely used chemical product that has earned the nickname the life blood of industry. Sulfuric acid is much needed by the chemical industries, including the fertilizer industry (used for the manufacture of super phosphate and ammonium sulfate), petroleum processing, pharmaceuticals, paper and pulp, plastics, batteries, explosives, paints and pigments, and oth…
ABSTRACT Paraxylene is an aromatic hydrocarbon compound with the molecular formula C8H10. It is used as a raw material for various end products such as purified terephthalic acid (PTA) and dimethyl terephthalate (DMT). PTA and DMT can be further processed for use in the plastics and textile industries. Additionally, paraxylene is utilized in the production of resins, synthetic fibers, plasti…
ABSTRACT 1,3 Butadiene is widely used in the chemical industry, particularly in synthetic rubber, plastic and polymer, and resin production. The market size for 1,3 Butadiene has been steadily increasing, reaching a value of USD 12 billion by 2022. The market is expected to grow at a Compound Annual Growth Rate (CAGR) of 3–6% during the 2022–2029 period. Currently, Indonesia has only one 1…