TEMAK 25℃/min Rapid Temperature Change Test Chamber | Custom Case Study

In reliability testing, the rate of temperature change in a rapid temperature cycling test chamber is a key performance indicator. However, beyond pursuing a single numerical specification, the long-term operational stability, repeatability, and energy efficiency of the equipment are of greater importance.

Client Case

The custom-built thermal storage type Rapid Temperature Change Test Chamber supplied by TEMAK to an APPLE supplier, featuring an adjustable rate capability of 25℃/min, represents our practical engineering approach to meeting high-standard testing requirements.

This capability is equally applicable across various industries. In automotive electronics, it validates the thermal cycle reliability of ECUs, sensors, and other components under harsh conditions. Within aerospace, it meets the demanding environmental stress screening requirements for airborne equipment and satellite components. For high-power devices (e.g., IGBT, SiC modules) and energy storage systems, this rate effectively simulates extreme operational scenarios involving rapid heating and cooling. In industrial and medical equipment sectors, it ensures the tolerance and functional integrity of critical instruments when facing sudden environmental changes.

1. Defining the Test Scenario: How Rate Capability Serves Standards and Efficiency

The widely adjustable rate range (5 to 25℃/min) of the TEMAK Thermal Storage Rapid Temperature Change Test Chamber is designed to precisely match the needs of different testing phases:

• Meeting High-Standard Screening Requirements: For tests with stringent demands such as HALT or ESS, the equipment must possess performance headroom far exceeding conventional levels. The 25℃/min capability ensures the chamber can accomplish rapid temperature transitions effortlessly and stably when required, effectively reducing overall test cycle duration.

• Ensuring Test Severity: For military standard tests like GJB 150, the TEMAK chamber not only fully complies with standard requirements but, more importantly, consistently maintains a temperature change rate fluctuation of ≤ ±3℃. This guarantees the accuracy and repeatability of the applied stress.

2. The Stability and Energy Efficiency Advantages of the Thermal Storage Pathway

Compared to traditional technical approaches, TEMAK's "Thermal Storage" solution focuses not only on achieving high rates but, more significantly, on enhancing the overall performance of the system.

• Energy Management: From "On-Demand Cooling" to "Intelligent Energy Storage"
  The TEMAK system utilizes a thermal storage unit to accumulate cooling capacity during periods of low system load, releasing it intensively when rapid cooling is required. This "peak shaving and valley filling" operational mode offers distinct advantages:

• Smoother Operation: Avoids drastic power fluctuations in the compressor during rapid temperature changes.

• Significantly Reduced Energy Consumption: Overall energy usage can be optimized by over 30% compared to traditional solutions.

• Extended System Lifespan: The compressor operates under milder conditions, contributing to enhanced long-term reliability.

  
  

• Control Core: Precision Regulation via Adaptive PID Algorithm
  Achieving high-speed and linear temperature changes relies on precise control. The TEMAK independently developed controller features an adaptive PID algorithm.
  This algorithm dynamically adjusts control parameters based on real-time thermal load changes within the chamber, effectively suppressing temperature overshoot or undershoot across the entire rate range. This ensures the measured curve closely follows the set curve and is key to achieving a temperature fluctuation of ≤ ±0.2℃.

  
  

• Foundation of Reliability: Quality Assurance of Core Components

  
  

  
  The stable operation of the entire system is built upon high-reliability core components such as the German-made Bitzer compressor. Robust fundamental refrigeration capability is the prerequisite for realizing all optimized functionalities.

TEMAK is committed to providing stable, reliable, and economical testing solutions. Our Thermal Storage Rapid Temperature Change Test Chamber, through its unique technical pathway, aims to help clients tackle high-standard testing challenges while achieving lower long-term operating costs and higher testing efficiency.