Enerji Verimliliği İçin Tren Direnci Formüllerinin Karşılaştırılması

Yıl 2017, Cilt: 8 Sayı: Özel (Special) 1, 112 - 126, 02.07.2017

Ömür Akbayır , Fatih Hayati Çakır

Öz

Trenler bölgeler arasında ulaşımı sağlarken farklı koşullar ile
karşılaşırlar. Seyir, rampa, kurp ve hızlanma durumları belirli ölçülerde
dirençlere yol açar. Hareketin devamlılığının sağlanması meydana gelen dirençlerin
üstesinden gelmeye bağlıdır. Bu dirençlerin üstesinden gelebilmek için uygun
şekilde uygulanabilecek kuvvetlere gereksinim vardır. Kuvvetin temini enerji
tüketilerek meydana getirilir. Ortaya çıkan dirençlerin doğru hesaplanması ve önlemler
alınarak azaltılması ile enerji tüketimi azaltılabilir. Trenlerde enerji
verimliliğine yönelik çalışmalar öncelikle tren direncinin farklı koşullar için
doğru olarak hesaplanması ile mümkündür. Bu çalışmada literatürde bulunan,
pratikte kullanılan, geçmişten günümüze geliştirilen tren direnci formülleri verilmiştir.
Her bir tren direnci formülü ile hesaplama yapılmıştır. Elde edilen değerler
karşılaştırılmıştır. Enerji verimliliği ve tren çekeri hesaplamaları için
mevcut formüllerden bazılarının kullanımı önerilmiştir. 

Anahtar Kelimeler

Enerji, Tren Direnci, Seyir Direnci, Kurp Direnci, Rampa Direnci

Comparison of Train Resistance Formulas for Energy Efficiency

Öz

Trains encounter different
conditions while they provide transportation between regions. Running, grade,
curve and acceleration situations lead to certain degrees of resistance. Ensuring
the continuity of the train movement depend on overcoming the resistances.
Force is required to encounter these resistances. Force is generated with
energy consumption. Energy consumption can be reduced by correct calculation of
resistances and precautions. Studies on energy efficiency of trains are primarily
possible with correctly calculation train resistance for different conditions. In this study, train resistance formulas in the literature,
used in practice and developed from the past to present are reviewed. Each
train resistance formula is evaluated. The values obtained are compared. The
use of some of the available formulas for energy efficiency and train draw
calculations has been proposed.

Anahtar Kelimeler

Energy, train resistance, running resistance, curve resistance, grade resistance

Kaynakça

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