Shenshi Technology Co-drafts Two Standards for Microchannel Diffusion-Bonded Heat Exchangers (PCHE) and Deepens R&D & Application of Advanced Heat Exchange Technologies
Shenshi Technology Co-Drafts Two National Standards for Microchannel Diffusion-Bonded PCHE Printed Circuit Heat Exchangers
This year brings a landmark milestone to the global precision heat exchange and thermal equipment industry: two authoritative national standards for heat exchangers have entered formal implementation phases in China.
1. NB/T 11917-2025 Diffusion-Bonded Heat Exchangers
Issued by National Energy Administration of China, this standard is officially effective now.
2. GB/T 47194-2026 Microchannel Heat Exchangers
Released by SAC Standardization Administration of China, this regulation will officially take effect on September 1, 2026.
We are extremely proud to announce that Shenshi Energy Saving Technology is one of the core primary drafting organizations of both national standards, participating fully in the whole cycle of technical research, draft compilation, performance verification and final standard ratification.
Why standardized PCHE heat exchanger specifications are vital for global low-carbon heavy industry
Aerospace engineering, new renewable energy, green hydrogen production & hydrogen storage, grid-scale energy storage system, solid oxide fuel cell SOFC power generation, supercritical carbon dioxide sCO₂ power cycle, nuclear power plant, liquefied natural gas LNG marine transport, carbon capture utilization and storage CCUS, offshore floating production unit FPSO, subsea oil & gas platform, marine LNG gas supply vessel, floating wind power, waste heat recovery, high-temperature high-pressure chemical synthesis, petrochemical processing…
Countless high-end heavy equipment, zero-carbon energy facilities and offshore marine projects are raising drastically higher thresholds for industrial heat exchange equipment: ultra-high heat transfer efficiency, ultra-compact lightweight footprint, compact heat exchanger structure, anti-corrosion resistance, pressure resistance, thermal shock resistance, and stable long-cycle continuous operation under extreme harsh working conditions including high temperature, ultra-high pressure, salt fog corrosion, acidic & alkaline medium erosion.
Diffusion-bonded Printed Circuit Heat Exchanger (PCHE), Plate-Fin Heat Exchanger (PFHE), and hybrid compact heat exchanger have become the core mainstream thermal equipment to solve these tough industrial heat transfer challenges.
With rapid global market penetration of microchannel PCHE devices across cross-industry applications, unified global standards covering product design, precision manufacturing, diffusion bonding process inspection, hydraulic thermal performance testing, fatigue evaluation, material selection and safety certification have turned into an urgent shared demand for thermal equipment manufacturers, EPC contractors, energy operators and engineering institutes worldwide.
Although these two national standards focus on different technical scopes, they share the same core industry mission: to realize standardized, safe, stable and reliable global application of advanced microchannel heat transfer equipment in diversified extreme industrial working conditions.
All standards translate over a decade of on-site industrial engineering experience, mass performance test data, long-term operation verification records and material failure analysis results into replicable, referable, universal global technical benchmarks for compact heat exchangers.
Every standard clause originates from our real industrial engineering practice
Industry standards are never formulated based on theoretical simulation only. Each technical indicator, test requirement and material specification is fully supported by long-term mass production and on-site industrial validation projects.
Shenshi Technology has deeply focused on full thermal management system solutions, compact heat exchanger R&D and diffusion bonding manufacturing for over 15 years. We own complete full-chain independent capabilities covering PCHE fluid channel simulation design, metal diffusion welding processing, precision CNC machining, material compatibility testing, thermal hydraulic performance bench inspection and after-sales industrial site technical service.
Our standard-setting industry layout started back in 2010, when we initiated independent R&D and commercial mass production of diffusion bonded microchannel PCHEs — at that time, the domestic compact heat exchanger industry lacked any unified technical specifications.
1. We developed China’s first exclusive enterprise standard specially customized for PCHE printed circuit heat exchangers, fully reviewed and certified by SAC Standardization Administration of China.
2. In 2023, relying on abundant cross-industry field verification projects, we took the lead in drafting China’s first official industrial association standard for PCHE heat exchangers, converting our proprietary manufacturing and application experience into shared universal industry technical consensus.
3. Mass verified industrial test data, material matching reports and offshore project operation records developed by our team were fully cited and absorbed during the compilation of industrial sector standards and national-level standards.
Our self-developed diffusion bonded PCHE heat exchangers have passed strict long-cycle operation verification on multiple authoritative industrial and laboratory projects:
✅ Supercritical CO₂ sCO₂ cooling circulation test loop at Institute of Plasma Physics, Chinese Academy of Sciences
✅ Long-term uninterrupted stable operation on multiple offshore oil & gas FPSO platforms under severe marine salt fog, heavy dynamic load and corrosive seawater environment.
Mass first-hand field operation data and real industrial working condition feedback continuously drive iterative upgrading of our PCHE product structure, diffusion bonding craft and anti-corrosion material matching, meanwhile greatly enhancing the practicability, safety authority and universality of the two newly released national heat exchanger standards.
Future Outlook for Global Thermal Energy Industry
Global high-end heavy equipment, renewable zero-carbon energy industry, offshore marine engineering and petrochemical chemical manufacturing sectors are continuously evolving and upgrading, which will continuously expand and enrich the global compact heat exchanger standard system.
Moving forward, Shenshi Technology will keep integrating real on-site industrial engineering practice experience into unified international and national technical standards, and feed standardized design & testing specifications back into product development and customer project customization.
We aim to cooperate hand in hand with global EPC contractors, energy operators, thermal equipment distributors, research institutes and industrial manufacturers, jointly promoting the innovation and large-scale commercialization of advanced microchannel diffusion bonded heat exchanger technology for worldwide energy transition and carbon neutrality goals.