Öz
In the over filling systems used in the locomotive diesel engines used in rail systems, which is a
branch of the rapidly developing transportation sector, heatex changers called inter coolers are used. It is
important to selector design the optimum intercooler in an over fill system.
In this study, it was planned to increase the engine volumetric efficiency by designing an intercooler in a
16 cylinder diesel locomotive engine. This engine has
beentriedtodeterminetheoptimumdesignbymakingdifferentdesignswiththecomputationalfluiddynamics
(HAD) analysis on the inter cooler. The prototypes of the designed inter coolers were tested and tested on
the motor. According to the experimental results obtained; It has been found that the efficiency value of
the designed inter cooler is 96% and the temperature of the fill air is 16% lower than the inter cooler
present.
Anahtar Kelimeler
Kaynakça
- BALCI, M., 1985., Dizel Motorlarında Süper şarj ve Turbo şarj, Teknik Eğitim Vakfı Yayınları, Ankara,
- BALCI, M.,1994, İçten Yanmalı Motorlarda Aşırı Doldurma, Teknik Eğitim Vakfı Yayınları, Ankara,
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- F. Schulemberg, Finned elliptical tubes and their applications in air-cooled heat exchangers, J. Eng. Ind. 88 (1966)179–190.
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating, Piping Air Cond. 28 (1956) 137–144.
- Patankar, S.V. (1980). Numerical Heat Transfer and Fluid Flow. NY: McGraw-Hill. R.L. Webb, Air-side heat transfer in finned tube heat exchangers, Heat Transfer Eng. 1 (3) (1980) 33–49.
- Aytunc¸ Erek, Barıs Ozerdem, Levent Bilir , Zafer Ilken , Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers, Applied Thermal Engineering 25 (2005) 2421–2431
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- Rocha, F.E.M. Saboya, J.V.C. Vargas, A comparative study of elliptical and circular sections in one andtwo row tubes and plate fin heat exchangers, Int. J. Heat Fluid Flow 18 (1997) 247–252.
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- B. Kundu, P.K. Das, Optimum dimensions of plate fins for fin-tube heat exchangers, Int. J. Heat Fluid Flow 18(1997) 530–537
- Kim, M.H. ve Bullard, C.W., , "Air-side thermal hydraulic performance of multi-louvered fin aluminum heat exchangers", International Journal of Refrigeration, (2002)25: 390–400.
- Miura, R.Y., Galeazzo F.C.C., Tadini, C.C., Gut, J.A.W., The effect of flow arrangement on the pressure drop of plate heat exchangers, Chemical Engineering Science, (2008)63, 5386-5393,.
- Aslam Bhutta, M. M., Hayat, N., Bashir, M. H., Khan, A. R., Ahmad, K. N., & Khan, S., CFD applications in various heat exchangers design: A review, Applied Thermal Engineering, 32, (2012) 1-12
Öz
Günümüzde hızla gelişen ulaşım sektörünün bir kolu olan raylı sistemler de kullanılan lokomotif
dizel motorlarda kullanılan aşırı doldurma sistemlerinde ara soğutucu olarak adlandırılan ısı
değiştiriciler kullanılmaktadır. Bir aşırı doldurma sisteminde optimum ara soğutucunun seçilmesi veya
tasarlanması önem arz etmektedir.
Bu çalışmada, 16 silindirli bir dizel lokomotif motorunda ara soğutucu tasarımı yapılarak motor
volumetrik veriminin artırılması planlanmıştır. Bu motorun ara soğutucu üzerinde hesaplamalı
akışkanlar dinamiği (HAD) analizleri ile farklı tasarımlar yapılarak optimum tasarım belirlenmeye
çalışılmıştır. Tasarlanan ara soğutucuların prototipleri yapılarak motor üzerinde testleri
gerçekleştirilmiştir. Elde edilen deneysel sonuçlara göre; tasarlanan ara soğutucunun etkenlik değerinin
%96 olduğu, dolgu havası sıcaklığında mevcut ara soğutucuya göre %16 daha düşük sıcaklık değerini
sağladığı tespit edilmiştir.
Anahtar Kelimeler
Kaynakça
- BALCI, M., 1985., Dizel Motorlarında Süper şarj ve Turbo şarj, Teknik Eğitim Vakfı Yayınları, Ankara,
- BALCI, M.,1994, İçten Yanmalı Motorlarda Aşırı Doldurma, Teknik Eğitim Vakfı Yayınları, Ankara,
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- F. Schulemberg, Finned elliptical tubes and their applications in air-cooled heat exchangers, J. Eng. Ind. 88 (1966)179–190.
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating, Piping Air Cond. 28 (1956) 137–144.
- Patankar, S.V. (1980). Numerical Heat Transfer and Fluid Flow. NY: McGraw-Hill. R.L. Webb, Air-side heat transfer in finned tube heat exchangers, Heat Transfer Eng. 1 (3) (1980) 33–49.
- Aytunc¸ Erek, Barıs Ozerdem, Levent Bilir , Zafer Ilken , Effect of geometrical parameters on heat transfer and pressure drop characteristics of plate fin and tube heat exchangers, Applied Thermal Engineering 25 (2005) 2421–2431
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- Rocha, F.E.M. Saboya, J.V.C. Vargas, A comparative study of elliptical and circular sections in one andtwo row tubes and plate fin heat exchangers, Int. J. Heat Fluid Flow 18 (1997) 247–252.
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- D.G. Shepherd, Performance of one-row tube coils with thin-plate fins, low velocity forced convection, Heating,
- Piping Air Cond. 28 (1956) 137–144
- B. Kundu, P.K. Das, Optimum dimensions of plate fins for fin-tube heat exchangers, Int. J. Heat Fluid Flow 18(1997) 530–537
- Kim, M.H. ve Bullard, C.W., , "Air-side thermal hydraulic performance of multi-louvered fin aluminum heat exchangers", International Journal of Refrigeration, (2002)25: 390–400.
- Miura, R.Y., Galeazzo F.C.C., Tadini, C.C., Gut, J.A.W., The effect of flow arrangement on the pressure drop of plate heat exchangers, Chemical Engineering Science, (2008)63, 5386-5393,.
- Aslam Bhutta, M. M., Hayat, N., Bashir, M. H., Khan, A. R., Ahmad, K. N., & Khan, S., CFD applications in various heat exchangers design: A review, Applied Thermal Engineering, 32, (2012) 1-12
Ayrıntılar
| Bölüm | Makaleler |
|---|---|
| Yazarlar | |
| Yayımlanma Tarihi | 28 Haziran 2017 |
| Gönderilme Tarihi | 20 Kasım 2017 |
| Yayımlandığı Sayı | Yıl 2017 Cilt: 4 Sayı: 1 |