ABSTRACT The Kampar River, which flows through Rumbio Village, Kampar Regency, Riau Province, plays a vital role in the hydrological cycle and the sustainability of the surrounding ecosystem. However, the river is prone to flooding, especially during the rainy season, which necessitates technical interventions such as the construction of bank protection structures. This study aims to analyze t…
ABSTRACT Pasar Pagi Arengka is one of the important areas and serves as an access route to the city center. Due to the conversion of green land, water inundation has occurred on several road segments in Pekanbaru City, particularly on one section of the Pasar Pagi Arengka road, as the runoff discharge can no longer be accommodated by the capacity of the existing drainage channel. This study ai…
ABSTRACT Flooding and waterlogging are still common problems in the Dwi Beringin Indah V Housing Complex in Pekanbaru City, caused by inappropriate drainage channel dimensions and a poor rainwater management system. This study aims to evaluate the existing condition of the drainage channels and determine their adequacy in accommodating surface runoff. Empirical methods were used, utilizing max…
ABSTRACT Jalan Ahmad Dahlan in Sukajadi District, Pekanbaru City, is one of the areas that often experience waterlogging during the rainy season. This is caused by various factors, such as changes in land use, garbage buildup, and sedimentation in drainage channels that hinder the flow of water. This study aims to evaluate the drainage performance on Jalan Ahmad Dahlan, Sukajadi District, Peka…
ABSTRACT Roads are a vital infrastructure that supports the smoothness of social, economic, educational, and mobility activities of the community. This research aims to inventory the buildings and road facilities within and outside the city, focusing on Pasir Putih Road. The method used is a field survey with a quantitative approach to calculate the percentage of component availability. The an…
ABSTRACT Aloe vera is known for its various health benefits; however, its high water content requires proper post-harvest processing to preserve nutritional quality. One effective method is vacuum freeze drying, which maintains product quality but suffers from low energy efficiency. This study investigates the use of Thermal Energy Storage (TES) to recover and reuse waste heat from the condens…
ABSTRACT This study aims to analyze the performance of an internal combustion engine using hydrogen gas produced through electrolysis as a supplementary fuel. Hydrogen was generated using an alkaline electrolyzer with NaOH electrolyte at various concentrations and current intensities. The experiment was conducted on a 97 cc four-stroke gasoline engine, with performance parameters including eff…
ABSTRACT Riau Province is the fourth-largest emitter of greenhouse gases in Indonesia (Ministry of Environment, 2023). To address this issue, fossil fuels are being replaced with hydrogen as an alternative energy source. Naturally occurring hydrogen can be derived from water, fossil fuels, and biomass. One method of hydrogen production is water electrolysis, which separates hydrogen and oxygen…
ABSTRACT Maintenance and care of machine components in the oil and gas industry is one of the main factors. One of the problems faced in maintenance is the difficulty of lifting and moving the atomizing air precooler heat exchanger on the gas turbine generator because of its position in a narrow space and its weight reaches 600 kg. Therefore, this study aims to design a Portable Gantry Crane t…
ABSTRACT Food waste is a global issue caused by the decline in food quality due to improper storage. This study aims to evaluate the power consumption and calculate the Coefficient of Performance (COP) of a Smart Food Container using a Thermoelectric Cooler (TEC) and Heat Pipe based on the Internet of Things (IoT). The system is designed to maintain food temperature under both cold and warm co…
ABSTRACT Unmanned aerial vehicles (UAVs), commonly known as drones, have rapidly evolved and are widely utilized in various sectors, including mapping, surveillance, irrigation, and cargo transportation. One of the key components that significantly affects a drone's performance is the propeller, which is responsible for generating lift and torque to maintain stability and maneuverability in th…
ABSTRACT The development of sustainable energy needs demands innovation in the electricity generation system that is not only efficient, but also environmentally friendly and economical. Generator sets (gensets), although commonly used as backup power sources, still rely on fossil fuels that have a number of limitations such as high operational costs, emission pollution, and dependence on …
ABSTRACT The activity of moving goods or materials from one place to another is one of the important aspects that affect the overall efficiency and productivity in a factory. The designed mobile belt conveyor has a capacity that functions to move palm shell material to the screening machine. Therefore, a mobile belt conveyor design that has high flexibility and mobility is needed. And the …
ABSTRACT The Gardapati Prototype vehicle is a specially designed car aimed at achieving high energy efficiency. This study aims to analyze the steering and braking systems of the Gardapati Prototype vehicle using the Design for Assembly (DFA) approach. DFA is a method used to evaluate and simplify product designs to improve manufacturing and assembly efficiency. The analysis in this study foc…
ABSTRACT Indonesia is one of the largest coconut producers in the world, with coconut milk being one of its high-value derivatives. However, coconut milk is highly perishable and prone to degradation. To improve shelf life and product stability, the spray drying method is employed to convert liquid coconut milk into powder. Nevertheless, this process often encounters challenges such as wall de…
ABSTRACT Spray drying is an effective method to convert liquid coconut milk into powder; however, conventional cyclone separators still face challenges in particle separation efficiency due to re-entrainment phenomena. This study aims to design and analyze the performance of a cyclone separator modified with a Circumfluent Cyclone (CFC) configuration and the addition of a Convergent Vortex Fin…
ABSTRACT Spray drying is a widely used drying method to convert liquid feed into powder, especially for heat-sensitive materials such as coconut milk. However, this process often encounters the issue of wall deposition, where particles adhere to the drying chamber walls, reducing drying efficiency and product quality. This study aims to analyze the temperature and airflow velocity distribution…
ABSTRACT Implementation of development on a project scale has great potential for environmental damage to occur. The building and construction sector contributed approximately 32% of global energy consumption and 34% of energy-related carbon dioxide (CO2) emissions in 2023. There has been an increase in the average daily temperature of at least 0.74ºC per year over the past two decades with t…
ABSTRACT Oyster mushroom baglog waste can produce 1 to 2 tons of waste in one harvest cycle. This waste has a fairly high lignocellulose content so that it has the potential to be used as a basic material for making activated carbon. This study aims to determine the effect of variations in NaOH activation concentration on the adsorption capacity of activated carbon from baglog waste in rem…
ABSTRACT Home cleaning service is a cleaning service that can be ordered online through a mobile application. This service offers a variety of options at different price levels, depending on the type and scope of service requested. The main purpose is to assist families or individuals with busy routines who lack the time to clean or regularly maintain their homes, especially vacant houses, to …