Asset Details
Do you wish to reserve the book?
Simulation study of thermal comfort of passenger compartment based on mean age of air and relative humidity
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Simulation study of thermal comfort of passenger compartment based on mean age of air and relative humidity
Do you wish to request the book?
Simulation study of thermal comfort of passenger compartment based on mean age of air and relative humidity
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Simulation study of thermal comfort of passenger compartment based on mean age of air and relative humidity
2025
Overview
This paper proposes a coupling analysis method combining self-defined mean air age and relative humidity field functions to study passenger compartment air conditioning cooling in summer environments with solar radiation. The impact of air supply velocity on cabin air distribution and thermal comfort is analyzed. A 3D cabin model including driver, seats, and dashboard was developed using CATIA. STAR-CCM + performed CFD simulations, coupled with TAITherm’s Berkeley human thermal regulation model incorporating physiological parameters. Simulations under 12 °C supply and 35 °C ambient show that increasing air velocity from 4 m/s to 10 m/s reduces driver nose-tip air age from 63.038 s to 27.318 s, showing a trend of high in the front row and low in the back row. Cabin relative humidity rises proportionally with air speed, with driver chest humidity increasing from 27.5% to 52.69%. The PMV thermal comfort index first increases and then decreases with the increase of airflow speed, reaching 0.35 at 8 m/s, which is within the comfortable range of −0.5 to 0.5. The research results indicate that appropriately increasing the air supply speed can enhance air exchange efficiency and thermal comfort. The main findings reveal that 8 m/s is the optimal speed threshold, shortening the time for fresh air to reach the driver’s nostrils by 46.1% compared to 4 m/s, while achieving compliant PMV values with humidity trade-offs managed. This method combines numerical simulations with human physiological response analysis, providing technical support for the development of HVAC systems.
