
Signals and Threads The Thermodynamics of Trading with Daniel Pontecorvo
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Jul 25, 2025 Daniel Pontecorvo leads the physical engineering team at Jane Street, fusing architecture and engineering to create functional spaces. He dives into the challenges of cooling densely packed data centers and how it parallels keeping traders comfortable. They explore innovative cooling technologies, including immersion cooling, and the implications of machine learning on infrastructure. Pontecorvo also emphasizes the importance of robust monitoring systems and discusses the benefits of a modular workspace design for collaboration in trading environments.
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Airflow Distance Matters Big
- Longer travel distance for hot air increases energy use by fans cubically with velocity.
- Avoiding hot air mixing back into server inlets improves cooling efficiency and reduces energy.
Delta T Controls Cooling Efficiency
- Delta T (temperature difference) between inlet and outlet air is directly proportional to heat rejection capacity.
- Optimizing delta T and airflow balances cooling efficiency and mechanical energy consumption.
Chilled Water Incident
- An accidental draining of chilled water during maintenance caused a major data center incident.
- Early temperature alerts helped uncover the issue before provider notification.
