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I. Project Background: Addressing the extreme environment verification needs of large-scale equipment.
With the rapid development of aerospace, rail transportation, new energy vehicles and large-scale scientific research equipment, traditional standard environmental test chambers can no longer meet the overall environmental simulation needs of ultra-large volume samples.
A Chinese research institute, in a high-end equipment reliability verification project, proposed the need for an ultra-large-scale test system capable of simulating the overall environment at the vehicle and machine levels , requiring the following:
• Extra-large usable space (≥1600m³ level)
• Wide temperature range environment simulation (-65℃ ~ +120℃)
• High-precision temperature and humidity control capability
• Long-term stable operation capability
• Multi-region uniformity control
TestEQ, drawing on its experience in large-scale environmental simulation systems engineering, ultimately completed the design, manufacturing, and delivery of this project.
II. Solution: Design of a 1600m³ Ultra-Large Environmental Test Chamber System
This project adopts a modular, modular walk-in structure design to construct an industry-leading ultra-large-scale environmental simulation space syste
m , which mainly includes the following core systems:
1. Ultra-large space structure system
• Total effective volume: 1600m³
• Multi-module splicing cabin structure
• High-strength thermal insulation composite panels
• Anti-cold bridge structure design reduces heat loss
2. Wide temperature range environmental control system
• Temperature range: -65℃ ~ +120℃
• Rapid temperature change capability (customizable)
• Multi-zone independent circulation air duct design
• Temperature uniformity optimization (multi-point feedback control)
3. Precise temperature and humidity control system
• Humidity range: 20% ~ 98% RH (expandable)
• High-precision steam humidification and dehumidification system
• Anti-frost and anti-condensation control algorithms
• Long-term stable operation capability
4. Intelligent Control and Data Systems
• PLC + Industrial-grade Touch Control System
• Multi-channel data acquisition (temperature/humidity/pressure)
• Remote monitoring and data export functions
• Automatic recording and tracing of test curves
III. Core Technology Highlights
✔ 1. Large-volume environmental uniformity control technology
For a space of 1600m³, a zoned airflow organization design is adopted to ensure that the temperature and humidity gradient is minimized and the consistency of the test is improved.
✔ 2. Stable operation at ultra-low temperatures
The system maintains continuous operation even at temperatures as low as -70℃, making it suitable for extreme cold environment simulation and material performance verification.
✔ 3. Designed for continuous operation under high load
For long-cycle testing of complete vehicles and large equipment, the system supports continuous operation 24/7 and features industrial-grade reliability redundancy design.
✔ 4. Energy Consumption Optimization System
By employing staged refrigeration control and heat recovery technology, overall operating energy consumption is reduced while ensuring performance.
IV. Typical Application Areas：
This 1600m³ ultra-large environmental test chamber is widely used in:
• Overall verification test of new energy vehicles
• Environmental adaptability verification of aerospace equipment
• Rail Transit Vehicle and System Testing
• Testing of Energy Storage Systems and Large Battery Containers
• Reliability Study of National-Level Laboratory
• Environmental adaptability assessment of large industrial equipment
V. Project Delivery and Verification Results：
During the project acceptance phase, the system successfully passed the following key verifications:
• Full-space temperature uniformity test meets standards
• Passed the -65℃ low-temperature stable operation test.
• Continuous operation at +120℃ has been verified.
• Temperature and humidity cycle control stability test passed
• Multi-point data synchronization consistency verification passed
The research institute highly recognized the system's stability, spatial uniformity, and control precision , and officially put it into use in scientific research projects.
VI. Summary of TestEQ Engineering Capabilities：
The successful delivery of this project demonstrates TestEQ's core capabilities in the field of large-scale environmental simulation systems:
• Design capability of ultra-large environmental testing systems
• Wide temperature range (-65℃ to +120℃) control technology
• Multi-system integration engineering capabilities (refrigeration/humidification/control/structure)
• National-level laboratory delivery experience
• Non-standard customized environment testing solution capabilities
VII. Conclusion：
With the continuous upgrading of testing requirements for high-end equipment, ultra-large-scale environmental simulation systems are becoming a key infrastructure for scientific research and industrial verification.
TestEQ will continue to provide global customers with:
from standard environmental test chambers to ultra-large customized environmental systems to full-scenario reliability testing solutions.
Due to confidentiality agreements, specific client names are not disclosed. However, parts of these projects can be verified through publicly available tender and procurement records.
Step inside our 1600m³ walk-in environmental chamber in VR—experience real full-scale testing capabilities before you invest.
