Hardware Videos

Low-Temperature Waste Heat to Cooling: High-Power-Density Adsorption Chillers for De-Electrified Coo

The presentation introduced Thermal Transformer’s low‑temperature adsorption chiller, a system that captures waste heat from GPU clusters and converts it into usable cooling for data‑center environments. By leveraging a rapid thermal‑swing absorption cycle, the prototype can provide 100 kW of cooling while consuming roughly 200 kW of heat and only 1.5 kW of auxiliary electricity for pumps. Key technical points include operation between 45 °C and 75 °C, with performance improving as the temperature differential widens. The chiller uses a proprietary combination of high‑conductivity materials and enhanced heat‑transfer media, though the underlying physics remains conventional lithium‑bromide absorption. The company projects a two‑to‑three‑year payback based on reduced power‑to‑cooling ratios, assuming site‑specific engineering validates the model. During the Q&A, Eric emphasized that the system’s efficiency scales with higher inlet temperatures—up to 70‑75 °C—allowing data‑center operators to reuse waste heat for other processes. He also noted a modest maintenance window of a few hours annually, representing 3‑5 % of capital cost, and highlighted a roadmap to containerized 1.5 MW units within three to four years. If realized, the technology could decouple cooling demand from electrical consumption, offering a greener, cost‑effective alternative for hyperscale facilities and industrial plants alike. Its success hinges on integration with existing HVAC infrastructure and accurate climate‑zone modeling, but the potential ROI and carbon‑reduction benefits position it as a strategic asset for energy‑intensive operators.