Walk-In Thermal Cycling Chamber for AI Servers

• •Active Heat Load Neutralization: Utilizes electronic expansion valve forecasting mated to heavy-duty refrigeration engines, actively absorbing 20 kW to 60 kW of continuous thermal surge during peak processing cycles.
• •Laminar Cross-Flow Wind-Wall: Integrates customized variable-frequency centrifugal blower walls forcing high-velocity airflow horizontally through ultra-dense 4U/8U server chassis, eliminating localized thermal pockets.

• •Anti-Fatigue Expansion Liner: Deploys a heavy-gauge 304 stainless steel interior skin engineered with sliding expansion joints, eliminating metal buckling across non-stop 15°C/min ramp profiles.

• •Predictive Isothermal Control: Links a high-density matrix of thermocouple grids to real-time feed-forward PID controllers, dynamic-trimming localized heating/cooling loops to ensure synchronous thermal tracking.

• •Generative AI Compute Clusters & GPU Full-Rack Deployments: Subjects full-scale AI data center compute nodes and smart PDU grids to aggressive thermal cycles to expose marginal inter-module signaling dropouts and copper busbar fractures.

• •Liquid-Cooling Manifolds & CDU Infrastructure: Validates the structural hermeticity and dynamic seal elasticities of Quick-Disconnect (QD) couplings and Coolant Distribution Units (CDUs) under rapid thermal expansion fatigue.

• •Automotive ADAS Domain Controllers: Runs highly efficient parallel thermal stress profiling on automotive central computers to eliminate interface solder delamination and runtime firmware anomalies before line rollout.

• •Telecom Macro Base Stations: Tests heavy-duty 5G/6G active antenna units (AAUs) against abrupt natural temperature jumps to secure continuous zero-dropout linkage.

• •Aerospace Avionics Sub-Systems:Subjects mission-critical flight control computers and satellite bus processors to rigorous thermal cycles to ensure structural safety and linkage retention in unpressurized bays.

• •IEC 62506: Environmental Stress Screening (ESS) Methods (Benchmarks the defect precipitation thresholds using high-rate thermal change curves within the environmental test chamber enclosure).
• •MIL-STD-810H Method 503.7: Temperature Shock and High Acceleration Slope (Drives rigorous high-acceleration multi-zone temperature airflow transitions inside the climatic test chamber workspace).

• •IPC-9592B Class II: Requirements for Power Conversion Devices (Governs explicit thermal trajectories for server power sub-systems inside the environmental test chamber to surface components potting flaws).

• •RTCA DO-160G Section 5.0: Temperature Variation for Airborne Equipment (Outlines severe high-rate ramp profiles inside the specialized climatic test chamber to precipitate latent micro-cracks).

The control system of the Sanwood test chamber adopts the world's leading software and hardware system to ensure that the test chamber operates under preset conditions, provide accurate and reliable experimental data, and help users achieve precise control and data collection of various experimental conditions.

• •Controller: It adopts the controller imported from South Korea Sanwon and the self-developed control system, which can be equipped with Siemens control system and equipped with RS232, RS485 and Ethernet communication ports.
• •Programmable control: It supports setting experimental programs, such as heating, cooling, constant temperature time, etc., and can execute multiple program settings, and supports advance reservation startup function.
• •Multiple languages optional: English, Korean, Russian and Japanese.
• •Remote monitoring: Using network remote technology to achieve remote control, the test chamber can be monitored at any time, and the current data can be viewed through the user's PC and mobile phone, which improves the convenience of testing.

The specific control system of the test chamber will vary depending on the model. Please read the "Sanwood Environmental Test Chamber Manual" carefully before use and comply with the safety operating procedures.

The refrigeration system of the test chamber is a complex and important system. The stability of the refrigeration system is crucial to the accuracy and reliability of the test results.

• •Sanwood Technology has developed a refrigerant hot gas defrosting technology, which effectively melts the frost on the evaporator by injecting high-temperature and high-pressure refrigerant steam into the heat exchanger in the test chamber. This not only ensures that the evaporator does not frost, but also greatly reduces the energy consumption of the equipment.
• •The refrigeration unit adopts an internationally renowned brand.
• •Optimize the layout of the refrigeration system, and adopt VRF (refrigerant flow control) technology based on the PID cold end output principle to achieve low-temperature energy-saving operation, which can reduce energy consumption by 30% under low-temperature conditions.
• •The refrigeration system adopts a modular design, with low failure rate, few welding points, high refrigeration efficiency, good reliability, simple maintenance, and low maintenance cost.