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Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Udayana, Badung Bali
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Kinerja Kotak Pendingin (Cooler Box) Berpendingin TEC1-12715 Pada Beberapa Beban Pendinginan Ivan Alexander Sormin; Ida Bagus Putu Gunadnya; I Gusti Ngurah Apriadi Aviantara
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p04

Abstract

A cooler box is a device used to store and keep ingredients cool and fresh. One of the efforts to develop a cooling source for made cooler boxes is to use a thermoelectric module TEC1-12715 that utilizes the Peltier effect. This study aims to determine the temperature reached in the cooler using TEC1- 12715 as a cooling device. The cooler box load without and with a cooling load (bottles filled with water with a volume of 600 ml each). The cooling load data and the coefficient of performance (COP) are displayed in a graph of observations every 6 minutes. All the analyzed data showed in the pictures and tables. The results showed that the cooler box temperature without load decreased by the increasing cooling time. The average temperature achieved was 17.08°C. The average water temperature in the cooler containing 2, 4, and 6 bottles of aqua was 21.56°C, 23.08°C, and 24.74°C, respectively. An increase in cooling load will increase the input power into the cooler box and lower the COP value of the cooling system
Rancang Bangun Alat Penanam dan Pemupuk Jagung (Zea Mays) Tipe Tugal Semi Mekanis yang Ergonomis I Wayan Sugiana; Ida Bagus Putu Gunadnya; Yohanes Setiyo
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 5 No 1 (2017): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2017.v05.i01.p11

Abstract

The purpose of this research was to get a prototype of a maize planters and fertilizer that can simplify work of farmers in the cultivation of maize, especially planting and fertilizing in one work process. The method used in this research is to create a prototype of a planter and corn fertilizer semi-mechanical that tested on 100 m2 of land no-tillage with flooded conditions 2-3 days before planting at a spacing of 25 cm in a row and 75 cm between rows. The results of the test show that the average output of corn was 2 seed to each hole and 31-40 grams fertilizer with a success rate of 86,88 % and 95 %, effective field capacity 0,0122 ha/hour, theoretical field capacity 0,0135 ha/hour and the speed of planting was 12 hole/minute.
Karakteristik Briket Biomassa dengan Variasi Geometri dan Jenis Bahan Baku yang Berbeda I Putu Dharma Putra Ritzada; Ni Luh Yulianti; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 2 (2021): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i02.p06

Abstract

This study aims to analyze the characteristics of biomass briquettes with different geometry variations and types of biomass briquette raw materials and determine which treatment produces the best quality briquettes. This research uses block design (RAK) using 2 factorials and 3 replications. The first factor is the type of raw material (A) which consists of three levels, namely tabah bamboo (A1), rice husk (A2) and a mixture of tabah bamboo and rice husk (A3). The second factor is the geometric shape of the briquette (B) which consists of two levels, namely beams (B1) and cylinders (B2). All treatments were repeated 3 times in order to obtain 18 observational data. The data obtained were analyzed by means of variance and if there was a significant treatment effect, then it was followed by the BNT test on the average treatment. The results showed that the interaction between treatments. Types of raw materials and geometric shapes had a significant effect on the quality parameters of the resulting briquettes. The treatment of briquettes made from rice husks in a cylindrical shape (A2B2) is a treatment that produces the best quality briquettes with a moisture content value of 2.64% bb.ash content was 6.60%, combustion rate was 73.16 (gr / minute) and volatile matter was 13.86%.
Modifikasi Kotak Polistiren Untuk Penyimpanan Dingin Sayur Kubis Dengan Menggunakan Es Kering Sebagai Media Pendingin Bagus Made Brahmanda Diputra; Ida Bagus Putu Gunadnya; I Putu Gede Budisanjaya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 9 No 2 (2021): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2021.v09.i02.p08

Abstract

Research had been carried out to modify polystyrene box as fresh cabbage delivery box using dry ice as a cooling medium. The research aims were to find out the most suitable model box to maintain the freshness of the vegetables. Modified polystyrene box was made by separating the box into two compartments, one compartment for placing dry ice, and another compartment for storing the fresh cabbage. The box was modified into five types which consisted of two types of the box where the cooling medium was placed below the fresh vegetable, while for the rest, the cooling medium was placed above the vegetable. The tests were performed for 7 hours with the hourly observation that consisted of the temperature surrounding the model box, temperature inside the box, and temperature of the center of the fresh cabbage. Other conducted measurements were the weight of dry ice used during cold storage, weight loss of fresh cabbage, visual observation on the deterioration of the fresh cabbage, and energy equilibrium calculation. Placing dry ice below the fresh cabbage caused the center temperature of the fresh cabbage to far above the recommended storing temperature, 0oC, while placing the cooling medium above the vegetable gave a negative impact on the vegetable where the center temperature of the fresh cabbage was below 0oC for the two types of model boxes, except for the fifth type box where dry ice was placed in a basin made of zink plate. Based on energy calculation it was revealed that almost more than 75% of cooling energy was used to overcome the surrounding cooling load. It was found that the most suitable model box for storing the fresh cabbage was the fifth type.
Modifikasi Keranjang Biokomposter Sederhana Untuk Sampah Organik Rumah Tangga I Komang Gede Habi Wijaya; Ida Ayu Gede Bintang Madrini; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p14

Abstract

Modification of a simple biocomposter basket was carried out because there were still shortcomings i.e. the support poles were not strong enough to support the net, the net used was not sturdy, the net hole was too large and there was no seat base. The purpose of this study was to modify the previously designed biocomposter basket, to test the performance of a simple household-scale biocomposter basket. The research was carried out in two stages, namely the stage of modifying the frame with the addition of support poles, the base of the seat at the bottom, then replacing the net. The second stage is a performance test with composting carried out for 60 days. Household organic waste and rice hull as raw materials were treated with: A1 (1: 0), A2 (1: 1), and 3 (1: 2). The frame construction is declared safe because it can support a compost load of 32 kg with tensile stress (σ) of the frame, which is 0.275 N/mm2 which is smaller than the allowable stress (σ) of the material, which is 48.1 N/mm2. The result of the modification is to strengthen the frame by adding 4 support poles, replacing the net with a size of 0.5 mm, and adding a seat base measuring 10 cm from the ground. Based on the results of the performance of the modified biocomposter basket, it shows that the 6 baskets have the same performance, for the best compost composition is produced at a ratio of A1 (household waste without mixture) because the raw materials for household waste have met the requirements of the C/N ratio from the beginning to the end of composting
Pengaruh Suhu dan Waktu Pengeringan Terhadap Karakteristik Biji Kakao (Theobroma Cacao L.) Kering Dewa Ayu Tari; Pande Ketut Diah Kencana; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 1 (2023): April
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i01.p24

Abstract

This research aims to determine the effect of temperature and drying time on the characteristics of dry cocoabeans and to obtain the best combination of temperature and drying time. This study used a completelyrandomized design (CRD) with two factors, there is temperature (50oC, 60oC, and 70oC) and time (15 and20 hours). Cocoa beans were collected and fermented using an albesia wooden box measuring 26cm x 25cmx 23cm with a thickness of 2 mm until five days. After finished fermentation, the seeds are soaked and cleaned using running water. The drying stage begins by inserting the seeds into a dehydrator dryer modelST-02. The results showed that temperature and drying time had a significant effect (P<0.05) on theparameters (moisture content, skin content, split test after drying, fat content, and organoleptic tests color,taste of nibs, texture, aroma, and overall acceptance). Temperature and drying time did not affect the number of seeds per 100 g. The best treatment combination was 600C temperature (S2) and 20 hours of drying time (T2) with 7.56% moisture content, 10.75% skin content, 3% unfermented beans, 7% semi-fermented beans, 90% completely fermented beans, 48.83% fat content, 4.66 colors hedonic test, 4.13 chip taste, 4.13 texture, 4.33 aroma, and 4.60 total acceptance.  
Analisis Rasio Prestasi Manajemen (RPM) Distribusi Air Irigasi pada Subak di DAS Ho Kori Ardy Rahayu; I Wayan Tika; Ida Bagus Putu Gunadnya
Jurnal BETA (Biosistem dan Teknik Pertanian) Vol 11 No 2 (2023): September
Publisher : Program Studi Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian, Universitas Udayana, Badung, Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBETA.2023.v11.i02.p20

Abstract

Irrigation is defined as a means of utilizing water resources. In Bali, irrigation management in agriculture is carried out by forming an organization called Subak. One of the characteristics of subak is that its members have the same water source and receive a fair distribution of water from that source. Regulation is very necessary for dividing and distributing irrigation water so that the amount of water given to the land is in accordance with the needs needed by the plant. However, the level provision of water irrigation is still not appropriate for each subak. Thus, it is necessary to evaluate the performance of irrigation networks using MPR analysis. MPR analysis was carried out by measuring the available debit, using a qualitative data analysis approach, and by calculating irrigation water needed, using the average climatological data for the last ten years, from 2012 - 2021, obtain from BMKG Region III Denpasar and data from interview pekaseh. The results of the analysis show that irrigation performance with the good category is dominated by subak in DI Aya, with a distribution of MPR values of 0,77 – 1,19. Meanwhile, the very less category is dominated by subak in DI Gadungan Lambuk, with a distribution MPR values of 0,00 – 0,36. During the dry season, further downstream, the performance irrigation network is getting less and less. In order for irrigation performance to always be in a good category, the irrigation water distribution strategy for subtasks in DAS Ho can be carried out by rotating the distribution of irrigation water. If it doesn’t work, it is necessary to repair the problematic irrigation networks.
Co-Authors A.H. Tambunan Agnesia Arista Wijaya AK Ali Muhamad Prabowo Anggi Setiawan Armansyah Halomoan Tambunan Aviantara, I Gusti Ngurah Apriadi Bagus Made Brahmanda Diputra Bintang Madrini Ida Ayu Gede Bob Evan Tampubolon Budana, I Putu Yosan Dewa Ayu Tari Dewa Ayu Tari Dewa Bagus Putu Prabha Diptaya Dian Dwi Cahyo Pangestu Gede Arda Gede Arda Hertiyana Nur Annisa I Gede Berliyantha Tikawa I Gst Ngr Apriadi Aviantara I Gusti Ngurah Apriadi Aviantara I Gusti Putu Eka Permana I Ketut Agus Sandi Andika I Ketut Suter I Komang Gede Habi Wijaya I Made Anom S. Wiajaya I Made Anom Sutrisna Wijaya I Made Prasetia Candra Andika I MADE SUPARTHA UTAMA I Made Surya Adnyana Putra I Made Yogi Supardika I Nyoman Sucipta I Putu Dharma Putra Ritzada I Putu Gede Budisanjaya I Putu Mas Pradnyana Wibawa I Putu Wiradarma Putra I Wayan Adi Saputra I Wayan Aris Santika Putra I Wayan Sugiana I Wayan Sugiana I Wayan Tika I Wayan Tika I Wayan Widia I Wayan Widia I. A. G. Bintang Madrini Ice Hera Widia Ida Ayu Agung Putri Trisiana Dewi Ida Ayu Mas Oceanic Ida Ayu Mas Oceanic Ida Ayu Rina Ida Ayu Rina Pratiwi Pratiwi Ida Ayu Rina Pratiwi Pudja Immanuel Damanik Irnando Ferdinand Fransiscus Silaban Ivan Alexander Sormin Ivan Alexander Sormin K. Abdullah Kadek Dyah Swasni Prambandita Kadek Mila Adiani Kamaruddin Abdullah Kevin Imanto K. Resman Komang Agus Suara Kori Ardy Rahayu Kori Ardy Rahayu Lestari, Kadek Irma Dwi Linda Puji Ayu Lestari Luh Putu Wrasiati M. Sudiana Mahendra M.A.M. Oktaufik Made S Utama Merisa - Aritonang Mubarok, Rizky Muhammad Azizi Rido Setiawan Ni Luh Yulianti Ni Luh Yulianti Ni Made Darmayanti Ni Made Juli Adiasih Ni Nyoman Ayu Tirta Diani Ni Nyoman Sulastri Ni Putu Budisetiari Ni Putu Intan Oktavia Fitriani Ni Putu Murtini Ni Putu Murtini Pande Ketut Diah Kencana Pande Ketut Diah Kencana Putra, I Nyoman Galih Oki Putu Ayu Purnamayanti Putu Darmayanti Putu Wahyu Nirmala Sari Putu Wahyu Nirmala Sari Ramendra Wiro Ginting Rina Pratiwi Pudja I. A Riski Nirmala Sidabutar roy zulkarnaen Sigit aris mahendra putra Sihombing, Alwin Siti Muizzun Nisak Stefani Sitanggang Sumiyati Sumiyati Utama, Made S Wayan Tika Y.A. Purwanto Yesinta Kristin Tamba Yogi Anggayana Yohanes Setiyo