We engineer from physics, not from a catalog.
A 50+ engineer R&D team. An in-house testing lab built specifically to characterize heat-exchanger geometries. A three-layer validation process — in-house calculation, HTRI cross-check, and physical test — that runs on every custom design. Below is what that looks like in practice.
Testing Lab
Dongrun's independently developed heat exchanger testing platform — rare in the industry — characterizes air-air, air-water, air-oil, and air-steam heat transfer with full instrumentation.
- — Air-air heat transfer characterization
- — Air-water (and air-oil, air-steam) test loops
- — Air-side and tube-side resistance measurement
- — Vibration and natural-frequency analysis
- — Fan performance and acoustic testing
- — Strain-gauge stress measurement
CFD Simulation
Numerical simulation of velocity fields, temperature fields, and structural response — used both to predict performance and to investigate test results.
HTRI + In-House Software
A three-layer validation process: in-house thermal design software → HTRI cross-check → physical prototype test.
Dongrun is a Heat Transfer Research, Inc. (HTRI) member, and our in-house thermal design software is calibrated against decades of laboratory data from our own testing platform. Every custom cooler runs the chain: in-house calculation produces the candidate geometry, HTRI validates against industry-standard correlations, and a physical prototype test confirms the design before manufacturing release.
R&D Team
50+ engineers — including 5 senior engineers — across mechanical, electrical, and heat-transfer disciplines. Led by founder Mao Wenzhuo (19 years at AVIC's 614 Aero Engine Research Institute).
Certifications
The credential set that lets Dongrun ship into US, EU, EAC, marine, and Asian regulatory environments.
Want to see the test data behind a design?
We'll share testing platform output and CFD analysis for relevant projects under NDA. A thermal engineer will reply within 48 hours.
Talk to a thermal engineer →