Efficient Thermal Control for Targeted Airflow Systems
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Summary
Problems
Existing climate control systems are inefficient in providing targeted and selective thermal conditioning, particularly in confined spaces like vehicle cabins, as they often fail to optimize heat transfer rates and temperature control for specific locations such as vehicle seats, leading to overheating or undercooling.
Innovation solutions
A thermal conditioning system utilizing a thermoelectric device (TED) with a blower and adjustable flow control valve, where operational parameters like mass flow rate and heat transfer coefficients are calculated to optimize airflow and power distribution between the main and waste sides of the TED, ensuring efficient heat transfer and maintaining temperatures within safe ranges.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If power is provided to the TED to heat or cool the airflow, then the temperature of the airflow is adjusted, but the system may overheat or overcool the airflow to damaging or ineffective levels
Why choose this principle:
The controller continuously monitors the temperature of the airflow and the TED, and adjusts the power provided to the TED in real-time to maintain the airflow temperature within a safe and effective range, preventing both overheating and overcooling
Principle concept:
If power is provided to the TED to heat or cool the airflow, then the temperature of the airflow is adjusted, but the system may overheat or overcool the airflow to damaging or ineffective levels
Why choose this principle:
The system dynamically changes the power parameter provided to the TED based on calculated operational parameters such as heat transfer coefficient and mass flow rate, allowing precise control of the temperature adjustment process while avoiding extreme temperatures
Application Domain
Data Source
AI summary:
A thermal conditioning system utilizing a thermoelectric device (TED) with a blower and adjustable flow control valve, where operational parameters like mass flow rate and heat transfer coefficients are calculated to optimize airflow and power distribution between the main and waste sides of the TED, ensuring efficient heat transfer and maintaining temperatures within safe ranges.
Abstract
A thermal conditioning system for a vehicle seat or other surface includes a thermoelectric Peltier device (TED) with a main side and a waste side. A flap adjusts a proportion of an airflow over the main and waste side airflow paths based on one or more operational parameters of the system. The operational parameters can include a power provided to the TED, the flow rate of the airflow, a thermal efficiency between the TED and the airflow, and/or a setpoint temperature of the airflow.