Seat Comfort Thermal Manikin

Whats/App: +86 156 1874 6768

Web: standard-groups.com

Standards

GB/T 18830-2009: Test methods for automotive seat and backrest thermal comfort

SAE J826: Human engineering H-point measurement standard

ISO 14505-2: Seat thermal comfort testing — Thermal manikin method

ISO 12894: Anthropometry and application of human models

ISO 9920: Clothing, personal protective equipment, and seat thermal comfort assessment

ASTM F1291: Standard method for evaluating thermal comfort using thermal manikins

ASTM F2370: Measurement of seat heat/cooling energy and humidity transfer

EN 12127: Automotive seat heat flux and pressure distribution measurement

Note: Some standards apply to overall seat thermal comfort evaluation, while others relate specifically to heat flux, humidity, or heated/ventilated seat energy transfer.

Product Specifications

Category	Parameter	Technical Specification
Manikin Type	50th percentile adult male, Back + Buttocks/Thighs	Based on SAE J826 HPM-II
Thermal Zones	8 independently controlled zones	Each zone with temperature control protection
Shell Material	Heat-conductive carbon fiber	Embedded heating wires and sensors
Temperature Control Range	10–40°C	±0.1°C accuracy
Max Power Output	—	1500 W/m²
Sweat Output Range	—	0–1000 ml/hr/m²
Continuous Heat Dissipation	—	350 W/m²
Power Accuracy	—	±1%
Humidity Measurement Accuracy	—	±3% RH
Power Supply	—	208–265 VAC, 50/60Hz, Single Phase
Cooling Water	—	Temp-controlled chiller, 30°C, 500 W, 2 L/min, 15 PSI
Weight	—	Approx. 120 kg (without water cooling system)
Dimensions	—	1189 × 575 × 856 mm

Features

Eight independent thermal zones with protected temperature control for precise heat distribution

Active cooling simulating human blood flow prevents local overheating during heated seat tests

Dynamic Heat Flow Sensors (DHS) measure instantaneous energy exchange between seat and skin

Computer-controlled liquid delivery system distributes sweat per zone

Highly stable resistive heating ensures uniform heat flux

Software-controlled real-time monitoring, automatic testing, and flexible data recording

Pre-set thermal differential tests allow quick evaluation

Comprehensive evaluation for passive, heated, and ventilated seats

High-accuracy measurement of humidity and heat flux suitable for R&D and quality control

Accessories

Item	Quantity	Description
Thermal Manikin	1 set	Includes heating wires and sensors
Control Electronics	1 set	Control board and interface
Environmental Temperature Sensors	2	For seat and ambient monitoring
Humidity Sensor	1	Measures ambient and seat humidity
Power & Control Cables	Multiple	Connect manikin to control system
Software	1 set	Control, record, and analysis
Cooling Water System	1 set	Temp-controlled chiller, 2 L/min, 15 PSI
Spare Heating Wires & Sensors	Multiple	Recommended for instrument maintenance

Testing Principle

The Seat Thermal Manikin simulates human heat and sweat secretion through eight independent thermal zones and skin analog systems. DHS sensors directly measure instantaneous energy exchange between the seat surface and the manikin skin. For heated or ventilated seats, active cooling prevents local overheating, ensuring reliable and accurate measurements. Software calculates thermal comfort indices and energy transfer efficiency using combined heat flux, temperature, and humidity data.

Test Procedure

Place the thermal manikin on the test seat, ensuring correct H-point positioning.

Set target temperatures and sweat distribution for each thermal zone according to standards or test requirements.

Start the control software and select the testing mode:

Passive seat: Constant temperature heat flux measurement

Heated seat: Heat flux and sweat measurement simultaneously

Ventilated seat: Heat flux, humidity, and airflow measurement simultaneously

The system automatically records heat flux, temperature, and humidity, generating time-history curves.

Analyze data and generate a thermal comfort report (including heat balance, local comfort, and humidity distribution).

Perform system self-check after completion, disconnect power and cooling, and clean the equipment.

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