Peningkatan Kinerja Mesin Pengering Hybrid Melalui Modifikasi Tungku Biomassa Untuk Pengeringan Ikan Tongkol (Euthynus affinis)

2018 ◽  
Vol 3 (3) ◽  
Author(s):  
Makmur Munandarsyah ◽  
Raida Agustina ◽  
Kiman Siregar
Keyword(s):  
Energy Use ◽  
Engine Performance ◽  
Total Efficiency ◽  
The Sun ◽  
Oven Method ◽  
Drying Time ◽  
Tuna Fish ◽  
Solar Dryer ◽  
Hybrid Test ◽  
Time Of Harvest

Abstrak. Pada saat musim panen ikan, para nelayan banyak mendapatkan ikan tongkol sebagai hasil tangkapan dengan jumlah yang sangat besar. Karena jumlah yang sangat banyak, terkadang ikan tongkol tidak habis terjual. Hal tersebut mengakibatkan ikan tongkol cepat membusuk jika tidak ada pengolahan yang baik. Salah satu cara yang dilakukan nelayan adalah dengan mengeringkan ikan tongkol tersebut secara alami (penjemuran dibawah sinar matahari). Alat pengering surya tipe rak adalah alat pengering berbentuk kotak yang memanfaatkan matahari sebagai energi termalnya. Adapun kendala dari alat pengering ini adalah hanya memanfaatkan panas dari energi matahari sehingga ketika cuaca dalam keadaan mendung atau saat malam tiba alat ini tidak bisa difungsikan. Tujuan penelitian ini adalah untuk meningkatkan kinerja dan nilai efisiensi pada tungku biomassa serta alat yang digunakan lebih efektif dan efisien. Metode yang digunakan dalam penelitian ini adalah metode oven. Hasil penelitian diperoleh total efisiensi penggunaan energi selama pengeringan yaitu, untuk pengeringan uji kosong hybrid adalah 0,11%, untuk pengeringan uji hybrid sebesar 5,60% dan untuk pengeringan uji surya sebesar 28,13%. Sementara untuk lamanya waktu pengeringan, uji hybrid ulangan selama 14 jam, uji hybrid ulangan 2 selama 14 jam, uji surya ulangan 1 selama 15 jam dan uji surya 2 ulangan selama 16 jam. Untuk total energi tersedia, pengeringan hybrid sebesar 265,63 MJ dan pengeringan surya sebesar 9,61 MJ. Improved Hybrid Dry Engine Performance through Modification of Biomass Furnaces for Drying Mackarel Tuna (Euthynus affinis)Abstract. At the time of harvest fish, fishermen get a lot of catches of tuna with very large amount. Due to the very large number of these, sometimes the tuna is not sold out. This resulted in the tuna quickly decompose if there is no good processing. One way in which the fisherman is by drying the tuna fish naturally (the drying in the sun). A tool rack type solar dryer is a box-shaped dryer that utilize the sun as thermal energy. The constraints of this tool is only utilizing the heat from solar energy, so when the weather is cloudy or at nightfall these tools can not function. The research aims to modify the tool rack type solar dryer to be a hybrid dryer for drying anchovy. The method used in this research is oven method. The results were obtained that total efficiency of energy use during drying is for drying empty test hybrid is 0,11%, for drying hybrid test at 5,60%, and for drying solar test of 28,13%. As for the length of drying time, hybrid test replicates 1 for 14 hours, hybrid test replicates 2 for 14 hours, solar test replicates 1 for 15 hours, and solar test repliatesc 2 for 16 hours. For the total energy available, hybrid drying of 265,63 MJ and solar drying of 9,61 MJ.

scholarly journals Modifikasi dan Uji Kinerja Alat Pengering Energi Surya-Hybrid Tipe Rak untuk Pengeringan Ikan Teri

2017 ◽  
Vol 10 (1) ◽  
pp. 10-20
Author(s):  
Risman Hanafi ◽  
Kiman Siregar ◽  
Diswandi Nurba
Keyword(s):  
Energy Use ◽  
Performance Test ◽  
Total Efficiency ◽  
The Sun ◽  
Drying Time ◽  
Cool Storage ◽  
Solar Dryer ◽  
Hybrid Test ◽  
And Performance ◽  
Time Of Harvest

Abstrak. Pada saat musim panen ikan, para nelayan banyak mendapatkan ikan teri sebagai hasil tangkapan dengan jumlah yang sangat besar. Karena jumlah yang sangat banyak, terkadang ikan teri tidak habis terjual. Hal tersebut mengakibatkan ikan teri membusuk jika tidak ada tempat pengawetan (cool storage). Salah satu cara yang dilakukan nelayan adalah dengan mengeringkan ikan teri tersebut secara alami (penjemuran dibawah sinar matahari). Alat pengering surya tipe rak adalah alat pengering berbentuk kotak yang memanfaatkan matahari sebagai energi termalnya. Adapun kendala dari alat pengering ini adalah hanya memanfaatkan panas dari energi matahari sehingga ketika cuaca dalam keadaan mendung atau saat malam tiba alat ini tidak bisa difungsikan. Tujuan penelitian ini adalah memodifikasi alat pengering surya tipe rak, menjadi alat pengering hybrid untuk pengeringan ikan teri. Hasil penelitian diperoleh total efisiensi penggunaan energi selama pengeringan yaitu, untuk pengeringan uji kosong hybrid adalah 0,010%, untuk pengeringan uji hybrid sebesar 0,695% dan untuk pengeringan uji surya sebesar 20,319%. Sementara untuk lamanya waktu pengeringan, uji hybrid ulangan 1 selama 7 jam, uji hybrid ulangan 2 selama 8 jam, uji surya ulangan 1 selama 10 jam dan uji surya ulangan 2 selama 11 jam. Untuk total energi tersedia, pengeringan hybrid sebesar 305,838 MJ dan pengeringan surya sebesar 9,896 MJ. Modifications and Performance Test Instrument Solar-Hybrid Dryer Type Rack for Drying AnchovyAbstract. At the time of harvest fish, fishermen get a lot of anchovy as catches with very large amount. Due to the very large number of these, sometimes anchovy is not sold out. This resulted in an anchovy rot if not done preservation (cool storage). One way in which the fisherman is by drying anchovy naturally (the drying in the sun). A tool rack type solar dryer is a box-shaped dryer that utilize the sun as thermal energy. The constraints of this tool is only utilizing the heat from solar energy, so when the weather is cloudy or at nightfall these tools can not function. The research aims to modify the tool rack type solar dryer to be a hybrid dryer for drying anchovy. The results were obtained that total efficiency of energy use during drying is for drying empty test hybrid is 0,010%, for drying hybrid test at 0,695%, and for drying solar test of 20,319%. As for the length of drying time, hybrid test replicates 1 for 7 hours, hybrid test replicates 2 for 8 hours, solar test replicates 1 for 10 hours, and solar test replicates 2 for 11 hours. For the total energy available, hybrid drying of 305,838 MJ and solar drying of 9,896 MJ.

scholarly journals Solar drying of jack fruit almonds

2011 ◽  
Vol 31 (6) ◽  
pp. 1150-1161 ◽  
Author(s):  
Alexandre J. de M Queiroz ◽  
Hermeval J Dantas ◽  
Rossana M. F. de Figueirêdo ◽  
Karla dos S Melo
Keyword(s):  
Solar Energy ◽  
Heat Source ◽  
The Sun ◽  
Solar Drying ◽  
Drying Time ◽  
Solar Dryer

Dryers heated by solar energy have been constructed and used in drying whole and half jack fruit almonds. The samples were dried during the day in direct sun and in the conventional solar dryer prepared for this purpose. Another piece of equipment was built for reception and accumulation of sun energy in a body of water, which was used as a heat source for night drying. The drying with the sun energy was compared with artificial drying. The jack fruit almonds were dried whole, half, with pellicle and without it. The storage of solar energy in water was technically viable for use in night drying. The drying by combining solar dryers in the day and night periods were completed in approximately 35 hours, and were equivalent to artificial drying between 40ºC and 70ºC. Almond cut in half and the pellicle removed reduced the drying time.

CATFISH DRYING (Clarias Batraclus) USING ‘TEKO BERSAYAP’ SOLAR DRYER

2012 ◽  
Vol 2 (1) ◽  
pp. 14-20
Author(s):  
Yuwana Yuwana
Keyword(s):  
Relative Humidity ◽  
Moisture Content ◽  
Ambient Temperature ◽  
Drying Rate ◽  
Drying Process ◽  
Drying Time ◽  
Ambient Relative Humidity ◽  
Solar Dryer

Experiment on catfish drying employing ‘Teko Bersayap’ solar dryer was conducted. The result of the experiment indicated that the dryer was able to increase ambient temperature up to 44% and decrease ambient relative humidity up to 103%. Fish drying process followed equations : KAu = 74,94 e-0,03t for unsplitted fish and KAb = 79,25 e-0,09t for splitted fish, where KAu = moisture content of unsplitted fish (%), KAb = moisture content of splitted fish (%), t = drying time. Drying of unsplitted fish finished in 43.995 hours while drying of split fish completed in 15.29 hours. Splitting the fish increased 2,877 times drying rate.

Moisture Analysis of Freeze-Dehydrated Cottage Cheese

1967 ◽  
Vol 50 (6) ◽  
pp. 1279-1283
Author(s):  
James L Fowler ◽  
Charles H Coleman
Keyword(s):  
High Capacity ◽  
Cottage Cheese ◽  
Oven Method ◽  
Vacuum Oven ◽  
Drying Time ◽  
Alternative Method ◽  
Moisture Analysis ◽  
Government Laboratories

Abstract A large number of samples of dehydrated cottage cheese are received by government laboratories for moisture analysis, and the apparatus for performing the test by the prescribed method lacks adequate capacity to handle them. Therefore, an experiment was designed to test whether analysis by an alternative method making use of high capacity apparatus would give comparable results. It was concluded that the mechanical convection air oven, 100—102°C, 16—18 hr drying time, did not give results comparable to the specified vacuum oven method

scholarly journals Effects of Blanching and Natural Convection Solar Drying on Quality Characteristics of Red Pepper (Capsicum annuum L.)

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
James Owusu-Kwarteng ◽  
Francis K. K. Kori ◽  
Fortune Akabanda
Keyword(s):  
Natural Convection ◽  
Quality Characteristics ◽  
Red Pepper ◽  
Plain Water ◽  
Drying Methods ◽  
Solar Drying ◽  
Drying Time ◽  
Sun Drying ◽  
Overall Acceptability ◽  
Solar Dryer

The objective of this work was to determine the effects of blanching and two drying methods, open-sun drying and natural convection solar drying, on the quality characteristics of red pepper. A 2 × 3 factorial design with experimental factors as 2 drying methods (open-sun drying and use of solar dryer) and 3 levels of pepper blanching (unblanched, blanched in plain water, and blanched in 2% NaCl) was conducted. Dried pepper samples were analysed for chemical composition, microbial load, and consumer sensory acceptability. Blanching of pepper in 2% NaCl solution followed by drying in a natural convection solar dryer reduced drying time by 15 hours. Similarly, a combination of blanching and drying in the solar dryer improved microbial quality of dried pepper. However, blanching and drying processes resulted in reduction in nutrients such as vitamin C and minerals content of pepper. Blanching followed by drying in natural convection solar dryer had the highest consumer acceptability scores for colour and overall acceptability, while texture and aroma were not significantly (p>0.05) affected by the different treatments. Therefore, natural convection solar dryer can be used to dry pepper with acceptable microbial and sensory qualities, as an alternative to open-sun drying.

scholarly journals Effect of Solar Radiation on the Drying Parameters of Mint (Mentha Spicata L.) Dried in Natural Convective Solar Dryer

2020 ◽  
Author(s):  
SEBIHA REHMAN ◽  
SEEMIN RUBAB
Keyword(s):  
Weather Conditions ◽  
Quality Parameter ◽  
Drying Process ◽  
Kashmir Valley ◽  
Rehydration Ratio ◽  
Drying Time ◽  
Mentha Spicata ◽  
Solar Dryer ◽  
Pre Treatment ◽  
Kinetics Of

Abstract The paper presents a kinetic study of solar dried mint (Mentha spicata L.) without any pre-treatment. Mint grows effortlessly in Kashmir valley but is not obtainable throughout the year because of inconsiderate weather conditions. The genus belongs to the Labiatae family and includes large varieties with different properties. A significant quality parameter is its colour. The drying kinetics of mint leaves dried in Domestic Solar Dryer in terms of colour attributes, moisture content, drying time, non enzymatic browning, water activity, rehydration ratio was studied. This study is very useful for household scale drying of mint leaves to optimize drying process and to achieve superior quality dried product at home maintaining its colour and aroma.

Effectiveness of Modified 1-Hour Air-Oven Moisture Methods for Determining Popcorn Moisture

2018 ◽  
Vol 34 (3) ◽  
pp. 617-621
Author(s):  
Daniel Brabec ◽  
Mayra Perez-Fajardo ◽  
Hulya Dogan ◽  
Kathleen Yeater ◽  
Elizabeth Maghirang
Keyword(s):  
Reference Method ◽  
Heating Time ◽  
Whole Grain ◽  
Oven Method ◽  
Drying Time ◽  
Ground Sample ◽  
Moisture Measurement ◽  
Mesh Screen ◽  
Grain Moisture ◽  
Short Heating Time

Abstract. Two of the most commonly used approved grain moisture air-oven reference methods for corn are the air oven method ASAE S352.2, which requires long heating time (72 h) at 103 ± 1°C for unground samples, and the AACC 44-15.02 air-oven method, which dries a ground sample for 1 h at 130 ± 1°C, but there is specific moisture measurement method for popcorn. The AACC 44-15.02 recommends a two-stage drying method for grain over 13%. But this involves more handling and drying time. The objective of this study was to develop an air-oven procedure for popcorn that requires short heating time (1h or less) based on existing reference method for ground corn (AACC 44-15.02). In the process of procedure development, two laboratory mills (Wiley Mini-Mill and Perten 3303 Mill) were optimized for mesh screen size and mill gap settings. The approved AACC method recommends using a 20-mesh screen fitted to the Wiley Mill, which failed, with wires breaking during the grinding process, possibly due to the hard nature of popcorn and/or clogging. It was replaced with the 10-mesh screen which produced larger particle size distribution with ~73% greater than 840 µm. The Perten Mill 3303 was set to gap No. 3 which produced ~68% particles that were greater than 840 µm. Additionally, this study evaluated the effectiveness of single-stage moisture measurement with the 14.5% and 16% moisture popcorn samples. Using the proposed procedure, four varieties of popcorn were tested at three different moisture contents (13%, 14.5%, and 16%). The method using the Wiley grinder and 60 min. heating time yielded oven moisture values which were statistically (p<0.05) similar to the approved ASAE S352.2 and AACC 44-15.02 (72-h, whole grain method). The moisture content of ground samples obtained from the Perten 3303 Mill had elevated moisture measurements and bias across the moisture levels when dried for 60 min. A reduction in heating time to 50 min. resulted in Perten mill samples yielding statistically (p<0.05) similar moisture measurements with the reference 72-h, whole grain method. Keywords: Air-oven, Drying, Popcorn.

Numerical analysis on thermal energy storage device to improve the drying time of indirect type solar dryer

2018 ◽  
Vol 54 (12) ◽  
pp. 3631-3646 ◽  
Author(s):  
Satyapal Yadav ◽  
Abhay Bhanudas Lingayat ◽  
V.P. Chandramohan ◽  
V. R. K. Raju
Keyword(s):  
Energy Storage ◽  
Numerical Analysis ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Storage Device ◽  
Energy Storage Device ◽  
Drying Time ◽  
Solar Dryer

Design, Analysis and Experimental Evaluation of Photovoltaic Forced Convection Solar Dryer for the Tropics

2010 ◽  
Vol 3 ◽  
pp. 49-61 ◽  
Author(s):  
A.O. Adelaja ◽  
S.J. Ojolo
Keyword(s):  
Forced Convection ◽  
Solar Irradiation ◽  
Maximum Temperature ◽  
Experimental Investigations ◽  
Drying Time ◽  
Solar Dryer ◽  
Sunshine Hours ◽  
Useful Power ◽  
Collector Efficiency ◽  
The Tropics

The photovoltaic (pv) forced convection solar dryer comprises the solar collector, dryer and pv assemblies. It is designed for a continuous operation throughout the day. The direct solar irradiation is utilized during sunshine hours and it automatically switches power supply to the battery during cloud covers and non-insolation periods. The inclusion of a heat reservoir enables heat transfer to continue during this period. In this study, thermal and dryer analyses were done. Experimental investigations were carried out to evaluate the performance of the system by drying plantain chips. The useful power collected was found to be, 391.50W, collector efficiency, 65.6%, dryer efficiency, 39.6%, average drying rate during insolation, 0.0169kg/hr and total drying time was 23 hours. The maximum temperature attained was 55oC. The average drying non insolation period was 0.0112kg/hr. The capital cost is less than $350.

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