A study on the comparison of kinetic energies calculated with some formulas using Fulljet nozzle

Gokcen Yonter; Houndonougbo Marius Houndonougbo

doi:10.20289/zfdergi.950402

EN TR

A study on the comparison of kinetic energies calculated with some formulas using Fulljet nozzle

Abstract

Objective: The objective of this study was to compare kinetic energies calculated by different formulas with Rose’s (reference) formula, using Fulljet type nozzle (½ HH-50 WSQ) at different pressures. Material and Methods: A platform in the dimension of 1x1 m was used to place 17 cups (250 cm3) and inclined at a slope of 9%. Then, artificial rainfalls (at pressures of 30, 40, 50, 60 and 70 kPa) was applied with a ½ HH-50 WSQ nozzle for 5 minutes and each experiment was triplicated. Drop diameter, rainfall intensities, terminal velocities were determined and kinetic energies were calculated with different equations. Results: In this study, it was found that rain intensities varied between 85- and 109 mm h-1, Christiansen coefficients (CU) (%) were 83-87 %, drop diameter (D50) were 1.77-2.05 mm, and terminal velocities were 6.08-6.67 m s-1. Average kinetic energies were also calculated between 9.94-46.59 J m-2 mm-1, respectively. Conclusions: The results obtained from this study (±5 %) were found to be in good agreement with the Rose (1960) formula and some kinetic energy formulas.

Keywords

Christiansen coefficients , kinetic energy. , mean drop diameter , Rain intensity , terminal velocity

Fulljet başlık kullanılarak bazı formüllerle hesaplanan kinetik enerjilerin karşılaştırılması üzerine bir çalışma

Öz

Amaç: Farklı basınçlarda Fulljet tipi başlık (½ HH-50 WSQ) kullanılarak Rose (referans) formülü ile farklı formüllerle hesaplanan kinetik enerjilerin karşılaştırılması amaçlanmıştır. Materyal ve Yöntem: %9 eğimli 1x1 m boyutunda platform üzerine 17 adet kap (250 cm3) yerleştirilmiştir. Daha sonra bu kaplara 5 dakika sürede yapay yağışlar (30, 40, 50, 60 ve 70 kPa basınçlarda), ½ HH-50 WSQ başlık ile 3 tekrarlı olarak uygulanmıştır. Damla çapı, yağış şiddetleri, terminal hızlar belirlenmiş ve kinetik enerjiler farklı eşitliklerle hesaplanmıştır. Araştırma Bulguları: Bu çalışmada yağış şiddetleri, 85-109 mm h-1, Christiansen katsayıları (CU) (%) %83-87, damla çapları (D50) 1.77-2.05 mm ve terminal hızlar 6.08-6.67 m s-1 belirlenmiştir. Ortalama kinetik enerjiler de sırasıyla 9.94-46.59 J m-2 mm-1 arasında hesaplanmıştır. Sonuç: Bu çalışmada, Rose (1960) formülü ile bazı kinetik enerji formülleri arasında çok yakın (%±5) ilişkiler bulunmuştur.

Anahtar Kelimeler

Christiansen katsayısı , kinetik enerji. , ortalama damla çapı , Yağış şiddeti , terminal hız

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Details

Primary Language

English

Subjects

Agricultural Engineering

Journal Section

Research Article

Authors

Gokcen Yonter ^*
0000-0003-0823-1893
Türkiye

Houndonougbo Marius Houndonougbo
0000-0003-3293-6885
Türkiye

Publication Date

September 30, 2022

Submission Date

June 10, 2021

Acceptance Date

March 5, 2022

Published in Issue

Year 2022 Volume: 59 Number: 3

DOI

https://doi.org/10.20289/zfdergi.950402

IZ

https://izlik.org/JA68RT42YK

APA

Yonter, G., & Houndonougbo, H. M. (2022). A study on the comparison of kinetic energies calculated with some formulas using Fulljet nozzle. Journal of Agriculture Faculty of Ege University, 59(3), 397-408. https://doi.org/10.20289/zfdergi.950402

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