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All Journal Jurnal Elemen Folium : Jurnal Ilmu Pertanian
Setyo Budi Santoso
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Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering

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Dampak pemberian Pupuk Organik Cair Kotoran Ternak terhadap Ketersediaan P dan Zn dan Serapannya oleh Tanaman Tomat (Solanum Lycopersicon L.) Wachida Ayu Annisa; Setyo Budi Santoso; Wanti Midarti
Folium : Jurnal Ilmu Pertanian Vol 6, No 2 (2022): Folium : Jurnal Ilmu Pertanian
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/folium.v6i2.15698

Abstract

The use of liquid organic fertilizer made from livestock manure is an attempt to provide tomato plants with P and Zn nutrients. This research aimed to assess the availability of P and Zn, the best growth, and yield of tomato plants using liquid organic fertilizer based on animal manure. A completely randomized design with a two-factor treatment was used to set up this study. The first aspect is the three different kinds of organic livestock-based fertilizers—chicken, goat, and cow dung. The second factor is the three different fertilizer concentrations, which are 5 ml/g (1), 10 ml/g (2), and 15 ml/g (3). A control was added as a point of comparison, and each treatment was performed three times overall for a total of 30 experimental units. After 7 days have elapsed after planting, liquid organic fertilizer is applied. The following parameters were measured: plant height, number of fruits, fruit weight, fruit sugar content, soil pH, soil accessible P, and total soil Zn. According to the findings, goat dung liquid fertilizer at a rate of 15 ml/g produced the greatest yield on tomato plant height. The treatment of 10 ml/g liquid organic fertilizer goat dung resulted in the highest Zn absorption in soil and tomato plants. The highest increase was seen with the 10 ml/g application of liquid organic fertilizer made from cow manure. In plant root P uptake (0.17 ppm).
ANALISIS ALIRAN PANAS DI KONDENSOR DAN EVAPORATOR PADA SISTEM PENDINGIN WATER CHILLER MENGGUNAKAN VARIASI SUHU DENGAN METODE LMTD Setyo Budi Santoso; Effendi Mohammad
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 2 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i2.258

Abstract

As a producer of cold water in large quantities used by PT. XYZ Pasuruan to cool the room and production machines, one of the most important elements is to use a water chiller system. Success in producing cold water is supported by optimal parameter settings in the system. Less than optimal settings result in a decrease in the COP value of the water chiller system.This research was conducted to analyze the heat flow in the condenser and evaporator using temperature variations in the water chiller system. Data processing was carried out using the Logarithmic Mean Temperature Difference (LMTD) method From the results of research using temperature variations, the optimal settings for the water chiller system were obtained, namely at a temperature variation of 5⁰C with a COP of 6.1 and an LMTD value of 3.97 for the condenser and 1.49 for the evaporator.
ANALISIS ALIRAN PANAS DI KONDENSOR DAN EVAPORATOR PADA SISTEM PENDINGIN WATER CHILLER MENGGUNAKAN VARIASI SUHU DENGAN METODE LMTD Setyo Budi Santoso; Effendi Mohammad
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 2 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i2.258

Abstract

As a producer of cold water in large quantities used by PT. XYZ Pasuruan to cool the room and production machines, one of the most important elements is to use a water chiller system. Success in producing cold water is supported by optimal parameter settings in the system. Less than optimal settings result in a decrease in the COP value of the water chiller system.This research was conducted to analyze the heat flow in the condenser and evaporator using temperature variations in the water chiller system. Data processing was carried out using the Logarithmic Mean Temperature Difference (LMTD) method From the results of research using temperature variations, the optimal settings for the water chiller system were obtained, namely at a temperature variation of 5⁰C with a COP of 6.1 and an LMTD value of 3.97 for the condenser and 1.49 for the evaporator.
Co-Authors Effendi Mohammad Wachida Ayu Annisa Wanti Midarti