ABSTRACT This study demonstrates that the Artificial Neural Network (ANN) algorithm can effectively adapt to varying operating conditions, both under Standard Test Condition (STC) and under dynamic irradiation and temperature scenarios. The simulation was conducted using MATLAB/Simulink, modeling a PV power system comprising a Trina Solar TSM-250PA05A.08 solar panel, a boost converter, and a l…
ABSTRACT Regional development in a region will cause the need for air to continue to increase along with population growth. Understanding future clean water needs is crucial, including the availability of raw water sources and clean water service facilities to ensure the community's clean water needs are met. This study analyzes and predicts the future demand for and availability of clean wate…
ABSTRACT Environmental conditions such as temperature and humidity significantly affect the growth and health of broiler chicks. Inappropriate environmental parameters can lead to stress and higher mortality rates. Therefore, a system that can monitor the poultry house conditions in real time is essential. This study aims to design and develop a temperature and humidity monitoring system for b…
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 Fatty alcohol is a high alcohol compound (aliphatic class) that has a chain length between C8 and C32 that can be produced from animal fat or vegetable oil. Fatty alcohol is generally used in emulsion and micro-emulsion products, for example in cosmetic products, detergents, and personal care products. Indonesia has continued to import fatty alcohol for the past five years with an ave…
ABSTRACT Benzoic acid, also known as benzenecarboxylic acid with the molecular formula C6H5COOH, is a chemical compound commonly used as a preservative in food, pharmaceuticals, and cosmetic products. The uses of benzoic acid are not only limited to preservatives but also include being a raw material in the production of alkyd resins, plastic materials, and various other organic compounds. Glo…
ABSTRCT Polyvinyl acetate (PVAc) is a thermoplastic polymer used as a raw material in the adhesive industry. PVAc whether modified or not, in solution or emulsion form, as a homopolymer or copolymer, shows a diversity that makes this adhesive suitable as a binder for various materials, especially wood products and their derivatives. PVAc is obtained from the polymerization of vinyl acetate mon…
SUMMARY MHD. RAJA ALFADH, NIM. 2210248026, Self-Healing Mortar Contained Nanosilica under Wet-Dry Conditions in NaCl Solution, Supervised and proctoring by Monita Olivia and Gunawan Wibisono In the marine environment, mortar as a construction material is susceptible to exposure to aggressive substances that can reduce its resistance and durability. This study aims to assess the characteristic…
ABSTRACT The chemical industry in Indonesia is experiencing rapid growth, increasing the need for supporting materials such as cumene, which is currently still imported from other countries. Cumene (C9H12) is an aromatic compound resulting from the reaction of propylene and benzene, has a colorless liquid form and is an important material in the petrochemical industry. By using the PBE-1 z…
ABSTRACT Propionic acid is a chemical that is widely used as an animal feed preservative, herbicide and food preservative. Propionic acid is also used in the manufacture of calcium and sodium propionate as an additive for preservatives. Propionic acid products have a fairly wide market so demand will definitely increase from year to year, but availability in Indonesia is still not there. In 20…
ABSTRACT Ammonia is a chemical compound with the molecular formula NH₃, consisting of one nitrogen atom and three hydrogen atoms. It is produced using hydrogen obtained from the cracking of light naphtha and nitrogen gas extracted from the air. With rising global demand, the development of an ammonia plant holds strong potential to create job opportunities and boost the country’s foreign e…
ABSTRACT Surfactant production in Indonesia reaches 70,000 tons/year, which is still insufficient to meet national demand, so Indonesia remains dependent on imports. Surfactant imports in Indonesia have increased by 8.15% per year, indicating a significant increase in surfactant demand. According to BPS data from 2020, surfactant imports in Indonesia reached 20,000 tons per year. Hydrogenated …
ABSTRACT This thesis analyzes security vulnerabilities on the Riau University website, unri.ac.id, which is generally exposed to backdoor attacks, resulting in changes in content to online gambling sites. The research used the Google Dorking method to identify infected domains, such as psil.postgraduate.unri.ac.id and feb.unri.ac.id, which showed modification of index files by the attacker. Th…
ABSTRACT Rapid population growth in Karimun Regency has led to an increased demand for clean water. The Regional Water Company (PDAM), as the primary water provider, faces challenges in meeting this demand, particularly with limited water resources. This study aims to analyze the projected domestic water demand in 2025, calculate water availability based on reservoir volume using water level (…
ABSTRACT The development of the outdoor café concept presents its own challenges in dealing with unpredictable weather changes, such as scorching heat and sudden rain, which can disrupt customer comfort. Therefore, this study aims to design and build an automatic garden umbrella system based on an Arduino microcontroller with a hydraulic drive, which can open and close the umbrella automatica…
ABSTRACT Oil palm plants require consistent irrigation to maintain optimal soil moisture and ambient temperature for healthy growth. However, manual irrigation methods commonly used in small-scale plantations are often inefficient in terms of time, labor, and water usage. This project aims to design and develop an automatic irrigation system using an Arduino Uno microcontroller, applied to a 2…
ABSTRACT As a growth center in Riau, the city of Pekanbaru faces numerous challenges with transportation infrastructure, particularly concerning pedestrian pathways. Jalan Hangtuah, which serves as a major route connecting various essential facilities, including schools, mosques, and hospitals, experiences significant pedestrian traffic during peak hours. However, the condition of the road in …
ABSTRACT During the project implementation, several challenges often arise that can lead to delays or cost overruns. Therefore, an effective control system, such as Earned Value Management (EVM), is needed to integrate time, cost, and progress to monitor the overall project performance. The objective of this research is to evaluate the cost and time of the Physical Development of Package C…
ABSTRACT Coastal areas are typically characterized by non-uniform soil properties, often featuring soft, water-saturated soils with high plasticity, which frequently results in low soil bearing capacity. This study aims to investigate the relationship between California Bearing Ratio (CBR) values and Mackintosh Probe (MP) test results by utilizing a mixture of clay soil comprising bentonit…
ABSTRACT Benzoic acid is an intermediate material needed in Indonesia. The benzoic acid plant is designed with a production capacity of 18,000 tons per year. The raw materials used are toluene and oxygen, with the assistance of cobalt acetate catalyst through the toluene oxidation reaction. The average import of benzoic acid in Indonesia is 8,339 tons per year (BPS, 2023). It is expected that …