Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F26%3A0197475" target="_blank" >RIV/00216305:26210/26:0197475 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1359431125007720" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1359431125007720</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.applthermaleng.2025.126180" target="_blank" >10.1016/j.applthermaleng.2025.126180</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution

Popis výsledku v původním jazyce

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 Skoda 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.

Název v anglickém jazyce

Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution

Popis výsledku anglicky

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 Skoda 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Centrum výzkumu nízkouhlíkových energetických technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

APPLIED THERMAL ENGINEERING

ISSN

1359-4311

e-ISSN

1873-5606

Svazek periodika

270

Číslo periodika v rámci svazku

126180

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

001450264000001

EID výsledku v databázi Scopus

2-s2.0-105000022269