Detail publikačního výsledku

Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution

VANČURA, J.; KROULÍKOVÁ, T.; BARTULI, E.; KŮDELOVÁ, T.; VONDRUŠ, J.

Originální název

Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution

Anglický název

Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution

Druh

Článek WoS

Originální abstrakt

Polymeric hollow fibre heat exchangers have proven to be suitable for use in passenger car cooling systems. Chassis dynamometer tests and on-road pre-tests were successfully conducted on a third-generation Škoda Octavia equipped with a 1.4 TSI gasoline engine, front-wheel drive, and a six-speed manual transmission. Additionally, the polymeric heat exchanger was evaluated in a calorimetric circuit. All tests confirmed that a polymeric hollow fibre heat exchanger can sufficiently cool the engine, despite exhibiting an air pressure drop six times higher than that of a conventional metal heat exchanger. This resulted in reduced airflow through the heat exchanger; however, its overall efficiency remained high. The study demonstrates that using a polymeric heat exchanger in a passenger car can reduce CO2 emissions by up to 2 g per kilometre, which has significant economic implications in light of European Parliament and Council Regulation 2019/631. The polymeric heat exchanger achieved a maximum thermal performance of 70 kW at a liquid flow rate of 60 L/min and an air velocity of 4 m/s, which is 1.4 times higher than that of a metal heat exchanger. Another advantage is the dependency of the internal heat exchanger flow on liquid temperature. Due to the small internal diameter of the hollow fibres, laminar flow develops, making it sensitive to changes in liquid viscosity as a function of temperature. This results in lower energy demand for the water pump drive at a constant engine RPM.

Anglický abstrakt

Polymeric hollow fibre heat exchangers have proven to be suitable for use in passenger car cooling systems. Chassis dynamometer tests and on-road pre-tests were successfully conducted on a third-generation Škoda Octavia equipped with a 1.4 TSI gasoline engine, front-wheel drive, and a six-speed manual transmission. Additionally, the polymeric heat exchanger was evaluated in a calorimetric circuit. All tests confirmed that a polymeric hollow fibre heat exchanger can sufficiently cool the engine, despite exhibiting an air pressure drop six times higher than that of a conventional metal heat exchanger. This resulted in reduced airflow through the heat exchanger; however, its overall efficiency remained high. The study demonstrates that using a polymeric heat exchanger in a passenger car can reduce CO2 emissions by up to 2 g per kilometre, which has significant economic implications in light of European Parliament and Council Regulation 2019/631. The polymeric heat exchanger achieved a maximum thermal performance of 70 kW at a liquid flow rate of 60 L/min and an air velocity of 4 m/s, which is 1.4 times higher than that of a metal heat exchanger. Another advantage is the dependency of the internal heat exchanger flow on liquid temperature. Due to the small internal diameter of the hollow fibres, laminar flow develops, making it sensitive to changes in liquid viscosity as a function of temperature. This results in lower energy demand for the water pump drive at a constant engine RPM.

Klíčová slova

Automotive cooling; Polymeric hollow fibre heat exchanger; CO2 pollution; Pressure loss coefficient; Aerodynamic drag

Klíčová slova v angličtině

Automotive cooling; Polymeric hollow fibre heat exchanger; CO2 pollution; Pressure loss coefficient; Aerodynamic drag

Autoři

VANČURA, J.; KROULÍKOVÁ, T.; BARTULI, E.; KŮDELOVÁ, T.; VONDRUŠ, J.

Vydáno

13.03.2025

Nakladatel

Elsevier

ISSN

1359-4311

Periodikum

APPLIED THERMAL ENGINEERING

Svazek

270

Číslo

126180

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

12

Strany počet

12

URL

https://www.sciencedirect.com/science/article/pii/S1359431125007720

BibTex

@article{BUT197475,
  author="Jan {Vančura} and Tereza {Kroulíková} and Erik {Bartuli} and Tereza {Kůdelová} and Jan {Vondruš}",
  title="Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution",
  journal="APPLIED THERMAL ENGINEERING",
  year="2025",
  volume="270",
  number="126180",
  pages="1--12",
  doi="10.1016/j.applthermaleng.2025.126180",
  issn="1359-4311",
  url="https://www.sciencedirect.com/science/article/pii/S1359431125007720"
}