cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Iwan Ridwan
Contact Email
iwan.ridwan@polban.ac.id
Phone
-
Journal Mail Official
fluida@polban.ac.id
Editorial Address
Jl. Gegerkalong Hilir, Ds. Ciwaruga Kecamatan Parongpong Kabupaten Bandung Barat Kotak Pos Bandung 1234 Kode Pos 40559 Gedung Jurusan Teknik Kimia
Location
Kota bandung,
Jawa barat
INDONESIA
FLUIDA
Published by Politeknik Negeri Bandung
ISSN : 14128543     EISSN : 27237680     DOI : https://doi.org/10.35313/fluida
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science Materials Science & Nanotechnology
FLUIDA (FLD, ISSN: 1412-8543, e-ISSN: 2723-7680) is a science and technology journal that contains articles taken from laboratory research results, simulation results of problems, conceptual analysis (the study of problem-solving in writing) about the production process, troubleshooting, and maintenance as well as results of studies/evaluations of the performance of a system process, especially in the fields of Chemical Engineering, Sustainable and Renewable Energy, Bioprocess Technology, and Food Technology.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 122 Documents
 8   9   10   11   12 
Utilization of Agricultural Waste from Brebeg Cilacap Village Become Biogas Using Cow Manure Sipayung, Rosmawati; Raharjo, Sonya H.; Sugondo, Ebeng; Aprilia, Anisa
Fluida Vol. 16 No. 1 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i1.4697

Abstract

Straw is one of the most prevalent agricultural wastes in Indonesia, particularly in Cilacap Regency. One hectare of rice fields can yield 7–10 tons of dried straw every growing season. In addition, cow dung in Brebeg Village has not been utilized optimally. Cow dung and straw can be utilized as an alternative energy, one of which is biogas. Biogas is produced through anaerobic fermentation in a biodigester. Methanogenic bacteria first convert straw and cow manure in the biodigester into gas, which is subsequently produced as a high concentration of methane. This technology can be easily applied especially for farmers and ranchers. These experiments were carried out by varying the ratio of cow dung, straw, distilled water, and the percentage of EM-4 bacteria with fermentation for 30 days in each variation. Based on the result, it is known that factors affecting biogas production are ratio of substrate, temperature, pH, and microorganisms. The best biogas is produced with a cow dung, straw, and distilled water ratio of 8:1:2 and 10% EM-4 bacteria with a flash time of 71-seconds and a blue flame. Although a particular sort of plastic is used in this laboratory-scale investigation to make it more efficient, it is prone to leaking. It is advised to use a fixed dome style of storage while scaling up the digester
Effect of Piping Configuration on Determining Alarm Response Time in HP Scrubber Using Dynamic Simulation In Jumanda Kasdadi; Fahmi Nur Listiani; Gianistri Maulani; Yanis Fitrianti
Fluida Vol 16 No 1 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i1.4703

Abstract

The HP scrubber is an equipment used to separate liquid from gas in the oil and gas industry. The low liquid level in the vessel is one of the abnormal conditions in the HP scrubber, a blowby gas event will happen because of a low level. So, the controller level indicator is required to prevent system damage and workplace accidents. The alarm response time is calculated in order to avoid an accident. To determine the alarm response time for a HP scrubber, a dynamic process simulation method can be used using Aspen HYSYS version 12. In a process simulation modeling also requires a process description that can describe real-world conditions, one of which is the condition of the existing piping in the system. Failure scenarios caused a process to have abnormal conditions, allowing the alarm response time to be calculated, and it can be modelled by using the event scheduler facility In Aspen HYSYS. The HP scrubber's maximum alarm response time without pipe segments and with the addition of 16 m pipe segments are 2.42 minutes and 2.56 minutes. Meanwhile, the time from alarm to failure on the HP Scrubber without and with the addition of 16 m pipe are 13.60 minutes and 28.70 minutes, respectively. So, the length of segment pipes added to the pipe configuration does not really affect the alarm response time. However, it can affect the time until a process failure occurs.
Cover Vol.16 No.1 May 2023 Keryanti Keryanti
Fluida Vol 16 No 1 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i1.4959

Abstract

The Effect of Plasma Electrolysis for Biodiesel Synthesis Using Waste Cooking Oil as a Raw Material and KOH Catalyst Shoelarta, Shoerya; Saripudin; Fedianto, Rahmat Dani Dwi; Darojat , Moch Adli; Abdulloh, Sudrajat Harris; Hidayatulloh, Irwan; elizabeth, lidya
Fluida Vol. 16 No. 2 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i2.3987

Abstract

The high consumption of cooking oil in Indonesia is directly proportional to the production of used cooking oil waste that can pollute the environment. To overcome this problem, used cooking oil is used as a biodiesel feedstock using the plasma electrolysis method. Plasma electrolysis is a synthesis process by applying a high voltage to the process. This study aims to determine the effect of the plasma electrolysis method with variations in voltage (400 - 500 volts) and the type of reagent (methanol and ethanol) on % yield and characteristics of biodiesel. The process is carried out by reacting used cooking oil with a reagent that is given a voltage until an electric discharge occurs and two layers are formed and the calculation of the specific energy requirements for the synthesis process is carried out. The results show that at a voltage of 500 volts with methanol reagent produces a yield of 85.73% with characteristics according to the SNI 7128:2015 standard such as density 888.36 Kg/m3, viscosity 5.79 Cst, acid number 0.39 mg - KOH/g, content ester 97.56% and flash point 117oC with the exception of water content 0.373%, with a specific energy requirement of 1758,031 J/mL.
The Effect of Antimicrobial Extract on The Characteristics of Tomatoes Coated by Edible Coating based on Tapioca Flour Yulistiani, Fitria; Nurarofah, Adela Putri; Azzahra, Fadila Isra; Rispiandi
Fluida Vol. 16 No. 2 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i2.4405

Abstract

The edible coating is a food coating material inhibitor of transpiration and respiration. Layer is not fully effective in preventing food spoilage. The spoilage process can occur more quickly if fruit with high moisture content has infected. The research aimed to determine optimum concentration of antimicrobial extract in maintaining shelf life and shrinkage of tomatoes, dominant bacteria in fruit spoilage, between Escherichia coli or staphylococcus. Figure out antimicrobial extracts that are effective in preventing microbial growth. Research begins with the extraction process, testing the active compounds in the extract, combining edible coatings and white turmeric and bitter melon extract with concentrations of 0%, 2.5%, 5%, 10%, 20%, 30%, and 100 respectively), tomato fruit coating. The tests included shelf life, weight loss, best antimicrobial extract, and inhibition diameter. The results more concentration of the extract made the shelf life longer to 14 days and reduced shrinkage by 3.53%. Secondary metabolite compounds in the form of saponins, steroids, and triterpenoids. The minimum concentration of 30% bitter melon and white turmeric extract to prevent bacterial activity and the diameter of the inhibition zone in the range of 10-12 mm showed the extract had the moderate ability. The more dominant bacteria in tomato fruit rot is Staphylococcus aureus.
Effect of Phosphate Concentration on Anodizing Process Efficiency and Aluminium Surface Hardness in 16% Sulfuric Acid Solution Sudarman, Robby; Indarti, Retno; Nurcahyo, Nurcahyo; Fauzan, Ahmad; Ngatin, Agustinus; Sihombing, Rony Pasonang
Fluida Vol. 17 No. 1 (2024): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i2.4461

Abstract

One of the problems the aircraft industry faces is equipment that has decreased performance in the period before planning. The solution to this condition is that a material that has hard properties and is corrosion-resistant is needed. Aluminium is a metal that is applied as equipment in the industry because it has the characteristics of being light, strong, corrosion resistant and easy to shape, but has properties that are easy to deform, have low hardness and wear resistance. Anodizing process has the characteristics to improve the surface properties of aluminium metal in physical and mechanical properties. The anodizing process of aluminium metal using sulfuric acid solution produces a thicker oxide layer than in other solutions, such as phosphoric acid solution. This research studied the effect of phosphoric acid concentration on process efficiency, oxide layer thickness, and the hardness of the anodized oxide layer in 16% sulfuric acid solution. Phosphoric acid solution concentration varied from 0; 0.5; 1;2;4; and 8% in 16% sulfuric acid solution at 5 Volts voltage or 1.12 A/dm2 current density with 25 minutes processing time. The results showed that the anodizing process in 16% sulfuric acid solution had the lowest efficiency of 19.3% after adding variations in the concentration of phosphoric acid. These conditions reached the optimum in 16% sulfuric acid solution with the addition of 1% phosphoric acid; 26.6 mg oxide mass; 50.33% efficiency; 90.48 mg/dm2 oxide layer thickness and 86.57 HV metal surface hardness
Potential of Gypsum Waste as a Substitution and Filler Material in Concrete Manufacturing Rambe, Muhammad Rahman; Pohan, Rizky Febriani; Fithriyah Patriotika; Sahrul Harahap; Alvi Sahrin Nasution
Fluida Vol. 16 No. 2 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i2.4471

Abstract

Gypsum is a dental and construction material that used only at certain times. Gypsum waste can be mixed with food waste so that it endangers the environment. The gypsum waste needs to be separated and recycled. This study examines the potential use of gypsum waste as substitute and filler material in concrete manufacture, including: gypsum characteristic based on XRF, concrete maximum load, concrete compressive strength, concrete water absorption and heavy metal concentration analysis. Gypsum compositions used is 0%, 10%, 20%, 30%, 40% and 50%. The gypsum characterization results showed that there was 98.92% oxide, gypsum was included in type III gypsum, heavy metals such as: Fe = 10 ppm and Al = 16500 ppm, metallic elements such as: Si = 1950 ppm, Ca = 182900 ppm, Mg = 4560 ppm, K = 2200 ppm, and non-metallic elements namely: P = 580 ppm. The highest and lowest of maximum load and concrete compressive strength in the gypsum use as substitute and filler material are produced at the addition of 50% and 10% gypsum, respectively. The gypsum addition as substitute or filler material reduces the concrete water percentage. The heavy metals concentrations resulting from the 28-day-old concrete immersion were: Fe = <0.084 ppm and Al = <0.156 ppm.
Penambahan Etanol sebagai Ekstraktor Lignin dalam Mengurangi Konsumsi NaOH Dan Degradasi Fiber Pada MCOâ‚‚ Stage Suryadi, Gilang Garnadi; Kesuma, Yella Veliana; Susilo, Nurul Ajeng; Ramdhani, Rizal Pauzan
Fluida Vol. 17 No. 1 (2024): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v17i1.4472

Abstract

One of the stages in the pulp industry that needs a lot of NaOH is MCO₂ (Medium Consistency Oxygen). However, the production process is impeded by the highly restricted availability of NaOH. Additionally, the significant fiber degradation that frequently takes place at the MCO2 stage may lessen the pulp's viscosity and strength. The study's components included pulp, ethanol, and NaOH. The goal of the research was to use less NaOH and to slow down fiber degradation by adding ethanol. The process involves adjusting the dose to obtain the optimum proportion of ethanol and NaOH, after which the temperature and reaction time are varied to produce pulp with higher quality. The results showed that at various doses, 50%:50% was the most optimum proportion of ethanol and NaOH with a kappa number 18, viscosity 1068.11 cP, and brightness 32.15%ISO. The best temperature that occurred in the optimum proportion of ethanol and NaOH was 85°C with a kappa number of 17.3, a viscosity of 1056.78 cP, and a brightness of 32.56%ISO. Meanwhile, the best reaction time for the optimum proportion of ethanol and NaOH occurred at 90 minutes with a kappa number of 15.6 viscosity of 1023,04 cP, and brightness 32.69%ISO
Biogasoline Production from Shallot Skin Waste with KOH-Clay Catalyst to Create Clean Energy Keryanti, Keryanti; Amalia, Dhea Nurul; Indrita Putri, Anindya; Marhani, Della Agustia; Amalia, Putri Vina; Rizki, Anwar Muhamad
Fluida Vol. 16 No. 2 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i2.4591

Abstract

Finding alternative fuels to replace fossil fuels has been made easier by the rise in the consumption of fuels like petrol and the fall in the production of national petroleum exploration activities. This research has been prompted using biomass as an alternative fuel. The primary raw material is shallot skin waste because it has enough lignocellulosic content to be used, one of which is to manufacture biogasoline by using the characteristics of petrol E10. A KOH-Clay catalyst is employed in a thermal and catalytic reaction to influence the reaction's pace. Starting with raw material preparation, conversion procedure, purification, and investigation of the physical properties of biogasoline at specific temperature fluctuations for an hour, the KOH-Clay catalyst is pretreated and characterised. It was discovered through this research that the montmorillonite KOH-Clay content was 5.73, indicating that the catalyst is hygroscopic and absorbs non-polar molecules, making it suitable for use as a catalyst with a pH of 6. As a result, at 60°C temperature circumstances, the best%yield results were attained of 35.025%. While the density value (0.950 gr/cm3) and colour (specific gravity, brownish yellow, and clear/bright) of the experimental results do not meet predetermined standards, they do when viewed from the viewpoint of physical parameters such as specific gravity (0.8358), oAPI biogasoline (37.794), and calorific value (18807.65 Btu/Ib). However, leftover shallot peels generally have the potential to be utilised as clean renewable energy.
Effect of Hydrolysis and Amount of Yeast on Banana Peel Fermentation into Bioethanol Dewi, Luthfi Kurnia; Cahyani, Chandrawati; Rahmadhina, Adriatic Fitri; Prasetya, Alexander Tyopannus; Triyastuti, Meilya Suzan
Fluida Vol. 16 No. 2 (2023): FLUIDA
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16i2.4615

Abstract

Recently, renewable energy sources are needed to meet human energy needs, one of which is bioethanol. Bioethanol can be made from banana peels. Banana peel contains starch which has the potential to be converted into bioethanol through fermentation. There are factors that affect fermentation including the number of microorganisms and glucose levels. One method to increase glucose levels is hydrolysis. The purpose of this study was to determine the effect of hydrolysis and the amount of yeast on bioethanol levels in banana peel fermentation. The research variables used were hydrolyzed and non-hydrolyzed banana peel substrates, as well as variations in the amount of yeast as much as 3 grams; 4.5 grams; and 6 grams. From this research, it was found that hydrolysis causes an increase in glucose levels in the substrate due to the conversion of starch to glucose. Increased glucose levels can affect the yield of bioethanol. The bioethanol content of the hydrolyzed substrate fermentation is 9%-9.5% greater than the bioethanol content of the non-hydrolyzed substrate fermentation of 3%-3.5%. The difference in the amount of yeast used in banana peel fermentation has an effect on the bioethanol content but not significantly enough because the amount of yeast will depend on the glucose content in the substrate.

Page 10 of 13 | Total Record : 122

 8   9   10   11   12 

Filter by Year

2015 2025


Reset
Filter By Issues
All Issue Vol. 18 No. 1 (2025): FLUIDA Vol. 17 No. 2 (2024): FLUIDA Vol. 17 No. 1 (2024): FLUIDA Vol. 16 No. 2 (2023): FLUIDA Vol. 16 No. sp1 (2023): FLUIDA x IRWNS Special Edition Vol 16 No 1 (2023): FLUIDA Vol. 16 No. 1 (2023): FLUIDA Vol 15 No 2 (2022): FLUIDA Vol 15 No 1 (2022): FLUIDA Vol 14 No 2 (2021): FLUIDA Vol 14 No 1 (2021): FLUIDA Vol 13 No 2 (2020): FLUIDA Vol 13 No 1 (2020): FLUIDA Vol 12 No 2 (2019): FLUIDA Vol 12 No 1 (2019): FLUIDA Vol 11 No 2 (2015): FLUIDA Vol 11 No 1 (2015): FLUIDA More Issue