ISO 15831 ASTM F2370 Male Warm Body Dummy EN 13537 342 Thermal Human Model System

Introduction

In addition to dissipating heat through conduction, convection and radiation, the human body also loses heat through the evaporation of sweat on the skin surface. If the water vapor can promptly diffuse into the surrounding environment through the clothing system, people will feel comfortable. However, if the clothing hinders the passage of water vapor, increasing the humidity in the microclimate between the human skin and the clothing, the water vapor will accumulate to a certain extent and condense into water, causing discomfort. When the human body is engaged in vigorous activities or is in a hot environment, the evaporation of sweat becomes an important way for the body to dissipate heat. At this time, it is even more necessary for the clothing to have sufficient water vapor transfer capacity. Therefore, it is necessary to accurately test the evaporation resistance of the clothing in order to make a comprehensive evaluation of the clothing's thermal and moisture transfer performance.

This dummy can test a detailed data system. The dummy itself does not have fingers or a face. The dummy is of higher strength. Pure nickel wires of approximately 700mm are placed from the fingers to the nasal cavity inside the dummy. Independent intelligent circuits ensure the accuracy of the measurement process. The internal circuits in each part ensure the accuracy of the measurement, and the built-in heat-conducting system ensures excellent uniformity. At the same time, this dummy can be divided into two parts, making it easy to transport.

The warm body dummy system device is applied to

1. Building thermal energy ventilation and air conditioning.

2. Comfort in aircraft and vehicles.

3. Thermal resistance tests of various clothing.

4. Research on wet clothing and sportswear.

5. Analysis of the impact of cold and warm rooms on the human body.

6. In high and low temperature environments, such as special fire experiment environments.

Key features of the warm body dummy

1. The human body model of the warm body dummy is divided into 17 anatomical segments including the head, trunk, and limbs. Each segment is equipped with insulation and micro-adjustable heaters. The constant power control enables surface heating and constant temperature control.

2. In the control software section, the internal heat of the human body model, the temperature insulation performance of the clothing, as well as the surface temperature assessment, heat dissipation heat value calculation, etc., can handle various measurement data and record and statistical processing.

3. When making the human body model of the warm body dummy, resin with low heat capacity is used, which enables rapid processing of the thermal response and heat exchange process of the human body model.

4. The thermal sensation nickel wire sensor is connected to the entire system and can measure the average temperature in each segment with good sensitivity.

5. Joints, shoulders, and knees can be bent and can be changed into standing or sitting postures, making it easy to remove the clothes.

6. The warm body dummy system is equipped with a lifting frame for the human body model, which can easily move the human body model.

Product Function

The thermal human model system (heated sweating dummy) is used to evaluate the overall thermal and moisture comfort of clothing, providing precise and effective experimental data for the research on mine heat hazard prevention technologies and the analysis and identification of heat hazard accidents in metal and non-metal mines.

Compliant with standards

ISO 15831, ASTM F2370-05, ASTM F2371-05, EN 13537, EN 342, etc.

The body shape and size conform to the physiological and anatomical characteristics of the human body;

1. # Model size: The model is based on the average height of an Asian male.

2. # Standard measurement area: 22 independent controlled thermal energy areas

3. Section area: Head - 1391 cm², Chest - 1880 cm², Back - 1780 cm², Abdomen and buttocks - 1808 cm², Thighs - 1696 cm² × 2, Lower legs - 1203 cm², Feet - 572 cm² × 2, Arms - 1234 cm² × 2

Connection: There are seams at the shoulders, hips, knees, elbows and ankle joints

5. Weight approximately 30 kilograms

6. # Standard clothing size M

7. Center temperature variation range: 37 ± 0.1℃.

8. Heating wires and wired temperature and humidity sensors throughout the body (including 18 temperature sensors and 18 humidity sensors) can precisely control and measure skin temperature. The temperature sensor accuracy is ± 0.1℃, and the humidity sensor accuracy is ± 3%

9. Under normal circumstances, the maximum heating power is 1200W/㎡ (dry and wet states)

10. It can also be used in wet skin conditions

11. Operating environment requirements: Temperature -50 to 150℃, Humidity 0 to 100%

Monitoring System

1. Comprising 1 computer, software control system, and monitoring system.

2. The computer control analysis software can control and monitor the normal operation of the above components, collect data, perform further calculations, and display real-time test results (such as clothing thermal resistance value, clothing moisture resistance value, clothing permeability rate, clothing clo value, etc.), providing data analysis, data storage, and print output functions; the analysis software provides results such as thermal resistance value, moisture resistance value, clo value, and permeability rate; the entire system can test indicators including: dynamic (static) thermal resistance value and moisture resistance value, and realize dynamic storage and reproduction of process parameters such as temperature, humidity, power, water circulation, and sweat volume.

Technical specifications

Temperature System

Sweating System