Unlock Advanced Engineering Solutions
Explore our cutting-edge simulation and thermal management technologies designed for nuclear energy, AI datacenters, and more. Discover how we can enhance your projects with innovative energy solutions.
What We Build
Nanexa LLC builds physics simulation software and thermal management hardware. The simulation platform — DAUNTLESS — produces the validated engineering analysis
that regulators, investors, and developers require before committing to construction. The hardware — the NanexaTech Direct-to-Chip Cooling System — is the
physical product that eliminates water consumption from datacenters and, by extension, from nuclear campuses.
Engineering Tools That Produce Answers
DAUNTLESS does not generate approximations for further manual analysis. It produces mesh-converged, uncertainty-quantified,
independently verifiable results — eigenvalues within 50 pcm of published benchmarks, temperature fields validated against experimental
thermocouple data, and safety margins documented to Wilks 95/95 confidence. The platform runs on high-performance cloud computing
and delivers results that can be reviewed by your team whether it is for safety analysis, investor materials, or fabrication drawings.
Advanced Nuclear. AI Datacenters. Space Power. One Platform.
Nanexa LLC is an engineering and technology company that designs, simulates, and deploys advanced thermal management systems across six computational domains: nuclear reactor thermal-hydraulics, datacenter cooling, quantum computing cryogenics, battery thermal management, biological life support, and secondary cooling and radiator systems. We build the simulation platform that models these domains as one coupled system.
Our engineering platform — DAUNTLESS — is the first tool capable of analyzing how a nuclear reactor transient propagates across every connected load simultaneously: the datacenter, the cryogenics, the battery storage, the habitat, and the heat rejection system all respond together in a single 3D coupled simulation. This matters because advanced reactors are no longer powering just a grid. They are powering AI campuses, lunar outposts, orbital stations, Mars surface bases, and industrial facilities where every load has unique thermal constraints and failure modes.
Six Domains, Fully Coupled
Reactor thermal-hydraulics, datacenter cooling, quantum cryogenics, battery storage, biological life support, and secondary cooling — solving together under one physics engine, not stitched together with manual boundary conditions.
Thirteen Reactor Types
From pressurized water reactors and sodium-cooled fast reactors to molten salt, lead-cooled, high-temperature gas, and small modular reactors — every advanced reactor concept under active development in the United States.
Five Deployment Environments
Terrestrial power plants, lunar surface, deep space transit, Mars surface, and Earth orbit — each with its own gravity, atmosphere, radiation environment, and heat rejection constraints.
Datacenter Design and Deployment
We don’t just simulate datacenter cooling — we design and deploy it. The NanexaTech Direct-to-Chip Cooling System eliminates cooling towers and secondary loops entirely, and is designed to handle GPU power up to 5,000 watts per chip.
Water-Independent Energy Infrastructure
The same dry air cooling engineering that eliminates external cooling water from our datacenter deployments applies to nuclear reactor heat rejection — enabling campuses that can be sited anywhere based on land and workforce, not water access.
