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Ahmad Akromul Huda
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protech.ummat@gmail.com
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Jl. KH. Ahmad Dahlan No.1, Pagesangan, Kec. Mataram, Kota Mataram, Nusa Tenggara Bar. 83115
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INDONESIA
Protech Biosystems Journal
Published by Universitas Muhammadiyah Mataram
ISSN : 28094425     EISSN : 28094425     DOI : ttps://doi.org/10.31764
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Energy Engineering
Protech Biosystems Journal is a peer-refereed open-access journal which has been established for the dissemination of state-of-the-art knowledge in the field of Agricultural Enginering (Agricultural Mechanization, waters and land resources Engineering, Energy, Bioprocess and Postharvest Technology) and related subjects in this field.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 5 Documents
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Search results for , issue "Vol 2, No 1 (2022): Protech Biosystems Journal" : 5 Documents clear
Design of a Biomass Gasification Stove for Corn Cob Waste Teguh Permadi; Budy Wiryono; Karyanik Karyanik; Asmawati Asmawati
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.9518

Abstract

Stoves are one of the technologies that play an important role in energy utilisation at the household scale. The utilisation of biomass waste as a fuel source is because the waste has a significant energy content. Based on BPS statistics for corn production in 2016, NTB province reached 1,278,271 tonnes and increased in 2017 to reach 2,127,324 tonnes, based on these data it is possible that corn will produce corn cobs that have the potential to be developed into bioethanol and bioenergy. The purpose of this study was to design and build a household scale corn cob waste biomass gasification stove, determine the effect of variations in air flow velocity on room temperature in the combustion process of corn cob waste, determine the comparison of water boiling temperatures at variations in air flow velocity of 5.0 m/s, 10.0 m/s, and 15.0 m/s. The research method used is experimental method by conducting experiments and performance tests in the Agricultural Workshop Laboratory. The research was conducted by varying the speed of air entering the reactor with speed variations of 5.0 m/s, 10.0 m/s and 15.0 m/s. The parameters observed include combustion chamber temperature, water boiling temperature, and initial ignition time. The results showed that the air velocity variation of 15.0 m/s affected the highest combustion temperature with 359.13 with 100 grams of ash, then the highest water boiling temperature was 60℃, and the initial ignition was recorded at 2:20:31 minutes. From the results of this study, it can be said that using the highest speed variation can produce perfect combustion.
Ergonomic Analysis of Noise Level and Mechanical Vibration on Rice Grinding Machine in Sangia Village, Sape Districts, Bima Regency Isnaini Isnaini; Nazaruddin Nazaruddin; Budy Wiryono
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.9428

Abstract

Rice milling equipment will really help farmers to process their produce continuously, but this tool has a weakness, namely mechanical vibrations and noise that arise when these tools operate. This study aims to determine the noise level of the rice milling machine and analyze the noise level of the rice milling machine. The method used in this research is an experimental method by conducting direct tests in the field. This study was designed using a Randomized Block Design (RAK). Parameters in this research include vibration value, noise level, work capacity, tool efficiency, and yield. Observational data were analyzed by analysis of variance at a significance level of 5%. If there is a treatment that has a significant effect, then it is further tested using the Honestly Significant Difference (BNJ) test at the same significant level. The results showed that the noise level of the rice milling machine at 600 Rpm (72.9 db) was lower than the rice milling machine in the first treatment, namely 1000 Rpm (74.5 db) and in the second treatment, 800 Rpm (73.5 db). db). The mechanical vibration of the rice milling machine at 600 Rpm (10.3 Hz) was lower than the rotation of the rice grinding machine at 1000 Rpm (12.5 Hz) and in the second treatment 800 Rpm (11.3 Hz).
Effect of Hydrogel Additional Composition on Tablet Compose Based on Bio-Slurry Muhammad Marzuki; Suwati Suwati; Muanah Muanah
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.9426

Abstract

Compost can be defined as the result of the decomposition of organic matter, while composting is a process in which organic matter is decomposed biologically, especially by microbes that utilize organic matter as an energy source. The effect of adding hydrogel to compost is a soil conditioner that focuses on water and nutrient retention so that it can reduce the use of irrigation water and increase the ability of plants to grow. The application of hydrogel and compost can improve physical properties such as bulk density, porosity, number of pores, water content of field capacity, water content of harvesting wilting point, available water, chemical properties, and soil biology. This study aims to determine the composition of the addition of hydrogel to tablet compost made from bio-slurry which is most appropriate for the moisture content and hardness of tablet compost. The method used in this research is experimental with direct testing in the laboratory. The results of the study The higher the addition of hydrogel, the higher the water content because there is still bound water trapped in the hydrogel and the best tablet compost or the highest water content was obtained in the P5 treatment, which was 18.35%, and the addition of hydrogel caused the tablet compost to become soft and elastic. so hardness is easier to destroy. The results of the analysis show that the best tablet compost hardness value is found at P0 of 97.0000 Newton
Physical Quality of Kitchen Lemongrass Powder (Cymbopogon citratus L.) Result of Convection Oven Drying Dian Purbasari; Anisa Dimas Anggraini
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.8948

Abstract

Lemongrass is one of the grass plants that can be cultivated inIndonesia. lemongrass has benefits as a food fragrance by processing it directlyinto the dish. The parts of lemongrass that are used as food fragrances are thestems and leaves. The use of lemongrass can be developed if it is processedproperly. One way of processing it is to make lemongrass powder in the so that ithas a longer and practical shelf life. The process used to make lemongrass powderis the drying process using a convection oven. The purpose of this study was todetermine the drying process of lemongrass using a convection oven with the effectof temperature differences and drying duration and to determine the physicalquality of lemongrass powder. The result of this research is that the water contentin lemongrass powder is <12% with the physical quality of the color brightness (L)at a temperature of 60℃ and a drying duration of 22 hours getting the highestvalue of 76.05. The highest value of reddish color (a) is 5.88 at a temperature of80℃ and a duration of 20 hours. The highest value of yellowish color (b) is 16.23at a temperature of 60℃ and a duration of 22 hours. The highest bulk density is0.54 g/cm3 at 70℃ and a duration of 22 hours. The highest water absorptioncapacity is 5.44 ml/g at 60℃ and 18 hours duration. The highest stack angle is40.69˚ at a temperature of 60℃ and a duration of 18 hours.
Phisycal Quality Analysis of Red Guava (Psidium guajava L.) Using Edible Coating of Carrageenan and Glycerol Dian Karuniasari; Dian Purbasari
Protech Biosystems Journal Vol 2, No 1 (2022): Protech Biosystems Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v2i1.9476

Abstract

Red guava (Psidium guajava L.) is one of the crop commodities inIndonesia. Red guava (Psidium guajava L.) belongs to the climataryric fruit groupthat has high respiration and ripens through an increase in CO2 and ethylene.Climateric fruits have a fairly short shelf life that can accelerate the fruit to bedamaged or decayed. Decay in the red guava fruit (Psidium guajava L.) occurs dueto the rapid respiration process due to poor postharvest handling. Decay on the fruitcan be reduced by applying post-harvest technology, one of which is by coating thesurface skin of the fruit using the edible coating method. Edible coating can bedone using the base material of carrageenan and glycerol. The purpose of this studyis to determine the physical quality of red guava fruit and the effect of ediblecoating from carrageenan and glycerol on red guava fruit. The physical qualities ofthe red guava fruit analyzed were color, shrinkage weight and texture. The resultsshowed the smallest brightness level (L) value of 52.18, the smallest reddish level(a) value of -15.91, the smallest yellowish level (b) value of 35.14, the smallestweight shrinkage value of 28.45% and the smallest texture value of 0.00180 mm /gram.second on the 10th day, namely guava with 1.5% carrageenan treatment and2% glycerol.

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