Heat Exchanger Thermal Cycle Test Bench for HVAC Radiator Coolant Hot and Cold Cycling

The liquid thermal shock test bench for heat exchangers is designed for testing automotive radiators and other compatible heat exchanger components through repeated cycles of hot and cold fluid circulation.

During normal operation, a radiator is subjected to fluctuations in coolant temperature, circulation conditions, and internal pressure. Repeated thermal expansion and contraction exert stress on joints, pipes, headers, seals, and other structural interfaces. Appropriate thermal cycling tests enable engineers to identify potential weaknesses before a product enters mass production or proceeds to the next stage of validation.

This radiator coolant thermal cycling test system integrates temperature-controlled fluid circulation with adjustable test pressure and flow conditions. Parameters such as temperature range, pressure range, flow rate, cycle frequency, and test duration can be configured to meet the requirements of customer-approved test protocols and the specific test specimen.

By employing repeated test cycles, we can observe how a component evolves over time—rather than relying on a single, isolated inspection—and determine whether further design improvements or additional evaluations are necessary.

Product Features

• Configurable Temperature Range
• Adjustable Pressure and Flow
• Controlled Hot-and-Cold Cycling
• Flexible Test Medium Selection
• Application-Specific Engineering
• Manufacturer-Direct Technical Support

International and Industry Reference Standards

QC/T 468-2010 — Automobile Radiator

This automotive industry standard covers general technical requirements, performance requirements, test methods, inspection rules, marking, packaging, transportation, and storage for automobile radiators.

GMW 14193 — Radiator Product and Test Procedure Specification

This automotive engineering specification addresses radiator design validation, production validation, post-validation audit, measurement conditions, performance requirements, and durability requirements.

JBT 7356 and JB/T 10408

These standards are also listed in the supplied technical reference information. Their exact titles, applicable editions, and relevance to the intended radiator thermal cycling procedure should be verified before publication or contractual use. They should not be presented as independently verified compliance claims until the standard details have been checked.

Technical Specifications

Main Functions

Liquid thermal cycling: Circulates the selected test medium through the specimen during programmed hot-and-cold testing.

Temperature condition control: Establishes the required medium temperature conditions within the configured operating range.

Pressure adjustment: Provides a configurable test pressure range of 0.1–0.6 MPa.

Flow-rate configuration: Supports a configurable flow range of 10–100 L/min.

Cycle-frequency setting: Supports a cycling frequency of 3–15 cycles per hour.

Repeated durability evaluation: Allows engineers to conduct repeated thermal cycles according to the selected test procedure.

Test-profile customization: Supports application-specific temperature stages, cycle counts, and other test conditions when included in the agreed configuration.

The exact availability of automated data logging, alarm functions, remote monitoring, report generation, and automatic leak detection should be confirmed against the final equipment configuration.

FAQ

Q1: What is a heat exchanger thermal cycle test bench used for?

It is used to circulate a test liquid through compatible heat exchangers while applying repeated temperature changes. The test helps evaluate durability and identify potential problems that may require further inspection.

Q2: What temperature range does this coolant thermal cycling tester support?

The supplied specification lists a configurable medium temperature range from -40°C to 130°C. The achievable profile and transition time should be confirmed for the required test conditions.

Q3: What is the pressure range of the equipment?

The specified pressure range is 0.1–0.6 MPa, configurable according to the application. The intended test pressure must remain compatible with the specimen and approved test procedure.

Q4: What flow rate can the test bench provide?

The supplied specification lists 10–100 L/min, configurable. The required operating flow depends on the specimen, medium, and test method.

Q5: Which liquids can be used?

The listed options include coolant and ethylene glycol aqueous solutions. Other media may be considered after checking material compatibility, viscosity, temperature limits, and equipment configuration.

About HONGCE

HONGCE develops and manufactures testing equipment for industrial product evaluation and quality control. With in-house engineering design and manufacturing capabilities, the company works with customers to understand their test requirements and translate them into practical equipment configurations.

For radiator and heat exchanger testing, the process starts with the actual specimen, operating conditions, and applicable test procedure. HONGCE can support technical discussions before ordering, equipment configuration, production coordination, and after-sales communication according to the agreed project scope.

Our aim is to help customers establish a repeatable testing process, obtain useful evaluation results, and make more informed decisions about product design and quality.

Looking for a thermal cycling test solution for your radiator or heat exchanger?

Contact HONGCE with your specimen drawings, target temperature range, pressure, flow rate, and test standard. Our team can review the requirements and discuss a suitable equipment configuration.

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