Performance Comparison of Propylene Glycol-Water and Ethylene Glycol-Water Mixtures as Engine Coolants in a Flat-Tube Automobile Radiator

Ahmet GÜNDEM; Murat HOŞÖZ; Erkan KEKLİK

doi:https://doi.org/10.30939/ijastech..914901

Makale detayları

Performance Comparison of Propylene Glycol-Water and Ethylene Glycol-Water Mixtures as Engine Coolants in a Flat-Tube Automobile Radiator

Yazarlar:

Ahmet GÜNDEM | Murat HOŞÖZ | Erkan KEKLİK

Yayıncı:

Otomotiv Mühendisleri Derneği

Ana Başlıklar:

Diğer mühendislik dalları

Dergi:

International Journal of Automotive Science And Technology 2021 Vol.5 Issue 2, pp.147-156

Belge Tipi:

Makale

Yayın Tarihi:

6/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000718852

Sıklık:

Üç Aylık

eISSN:

2587-0963

DOI:

https://doi.org/10.30939/ijastech..914901

Özet:

 


This study aims at evaluating and comparing the thermal performance of five different engine coolants employed in an experimental engine cooling system with a flat-tube louvered-fin automobile radiator. For this purpose, a PLC-controlled test system was set up. The system could maintain the temperatures of the air and coolant at the radiator inlet, the speed of the air and flow rate of the coolant at the required values during the tests. The tested coolants were pure wa-ter, 30/70 ethylene glycol (EG)/water, 30/70 propylene glycol (PG)/water, 50/50 EG/water and 50/50 PG/water mixtures. In all tests, the coolant temperature at the radiator inlet was kept at 90°C, while the coolant flow rate was varied between 0.10–0.25 l/s with 0.05 l/s increments. Furthermore, the air temperature at the ra-diator inlet was kept at 25, 30 and 35°C, and the air speed passing over the radia-tor was varied between 1–4 m/s with 1 m/s increments. The thermal performance of the radiator was evaluated by locating the measured coolant flow rate and coolant inlet/outlet temperatures into the conservation of energy equation. It was found that water yielded the highest radiator heat rejection rates. Compared with water, 30/70 EG/water, 50/50 EG/water, 30/70 PG/water, 50/50 PG/water mix-tures yielded on average 3.50%, 7.89%, 8.28%, 11.46% lower radiator heat rejec-tion rates, respectively. Since PG has some advantages over EG such as lower cost and toxicity, PG mixtures can be employed as antifreeze instead of EG mix-tures in expense of a slight decrease in the thermal performance.    

.

Makale detayları

Performance Comparison of Propylene Glycol-Water and Ethylene Glycol-Water Mixtures as Engine Coolants in a Flat-Tube Automobile Radiator

Yazarlar: Ahmet GÜNDEM | Murat HOŞÖZ | Erkan KEKLİK

Yayıncı: Otomotiv Mühendisleri Derneği

Ana Başlıklar: Diğer mühendislik dalları

Dergi: International Journal of Automotive Science And Technology 2021 Vol.5 Issue 2, pp.147-156

Belge Tipi: Makale

Yayın Tarihi: 6/2021

Belge Dili: İngilizce

Document ID (Org No.): 2000718852

Sıklık: Üç Aylık

eISSN: 2587-0963

DOI: https://doi.org/10.30939/ijastech..914901

Sayı

Yazarlar:

Ahmet GÜNDEM | Murat HOŞÖZ | Erkan KEKLİK

Yayıncı:

Otomotiv Mühendisleri Derneği

Ana Başlıklar:

Diğer mühendislik dalları

Dergi:

International Journal of Automotive Science And Technology 2021 Vol.5 Issue 2, pp.147-156

Belge Tipi:

Makale

Yayın Tarihi:

6/2021

Belge Dili:

İngilizce

Document ID (Org No.):

2000718852

Sıklık:

Üç Aylık

eISSN:

2587-0963

DOI:

https://doi.org/10.30939/ijastech..914901