Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Polymeric hollow fibre heat exchanger for reducing vehicle CO2 pollution
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
<a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
APPLIED THERMAL ENGINEERING
ISSN
1359-4311
e-ISSN
1873-5606
Volume of the periodical
270
Issue of the periodical within the volume
126180
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
1-12
UT code for WoS article
001450264000001
EID of the result in the Scopus database
2-s2.0-105000022269