As artificial intelligence surges across the digital infrastructure landscape, its impacts are increasingly physical. Higher densities, hotter chips, and exponentially rising energy demands are pressuring data center operators to rethink the fundamentals, and especially cooling.

That’s where Shumate Engineering steps in, with a patent-pending system called Hybrid Dry Adiabatic Cooling (HDAC) that reimagines how chilled water loops are deployed in high-density environments.

In this episode of The Data Center Frontier Show, Shumate founder Daren Shumate and Director of Mission Critical Services Stephen Spinazzola detailed the journey behind HDAC, from conceptual spark to real-world validation, and laid out why this system could become a cornerstone for sustainable AI infrastructure.

“Shumate Engineering is really my project to design the kind of firm I always wanted to work for: where engineers take responsibility early and are empowered to innovate,” said Shumate. “HDAC was born from that mindset.”

The challenge HDAC aims to solve is deceptively simple: how do you cool legacy air-cooled equipment and next-gen liquid-cooled racks, simultaneously and efficiently?

Shumate’s answer is a closed-loop system with two distinct temperature taps:

• 68°F water for traditional air-cooled systems.
• 90°F water for direct-to-chip liquid cooling.

Both flows draw from a single loop fed by a hybrid adiabatic cooler, a dry cooler with “trim” evaporative functionality when conditions demand it. During cooler months or off-peak hours, the system economizes fully; during warmer conditions, it modulates to maintain optimal output.

“This isn’t magic; it’s just applying known products in a smarter sequence,” said Spinazzola. “One loop, two outputs, no waste.”

The system is fully modular, relies on conventional chillers and pumps, and is compatible with heat exchangers for immersion or CDU-style deployment. And according to Spinazzola, “we can make 90°F water just about anywhere” as long as the local wet bulb temperature stays below 83°F, a threshold met in most of North America.

The future of AI isn’t coming; it’s already here. With NVIDIA’s recent announcement of forthcoming 600kW+ racks, alongside the skyrocketing power costs of inference-based AI workloads, now’s the time to assess whether your data center is equipped to meet these demands.

Fortunately, two-phase direct-to-chip liquid cooling is prepared to empower today’s AI boom—and accommodate the next few generations of high-powered CPUs and GPUs. Join Accelsius CEO Josh Claman and CTO Dr. Richard Bonner as they walk through the ways in which their NeuCool™ 2P D2C technology can safely and sustainably cool your data center.

During the webinar, Accelsius leadership will illustrate how NeuCool can reduce energy savings by up to 50% vs. traditional air cooling, drastically slash operational overhead vs. single-phase direct-to-chip, and protect your critical infrastructure from any leak-related risks. While other popular liquid cooling methods carry require constant oversight or designer fluids to maintain peak performance, two-phase direct-to-chip technologies require less maintenance and lower flow rates to achieve better results.

Beyond a thorough overview of NeuCool, viewers will take away these critical insights:

• The deployment of Accelsius’ Co-Innovation Labs—global hubs enabling data center leaders to witness NeuCool’s thermal performance capabilities in real-world settings
• Our recent testing at 4500W of heat capture—the industry record for direct-to-chip liquid cooling
• How Accelsius has prioritized resilience and stability in the midst of global supply chain uncertainty
• Our upcoming launch of a multi-rack solution able to cool 250kW across up to four racks

Be sure to join us to discover how two-phase direct-to-chip cooling is enabling the next era of AI.

During the 14-minute interview, Walsh discusses MOOG’s legacy in designing and manufacturing high-performance motion control products and how the company’s experience with mission critical solutions translates into the data center space. He outlines how intelligent cooling controls and maintenance services contribute to overall data center sustainability and explains what sets MOOG’s purpose-built data center products apart from the competition.

Walsh also discusses recent advancements in motion control and cooling systems for data centers, including a new ultrasonic sensor that measures cavitation in liquid cooling fluids.

During the interview, Walsh shares his thoughts on the rise of liquid cooling across the data center industry and the role MOOG plans to play in this transformation.