Nuclear Engineering International
Summary
Holtec International has announced the HI-HEAT District Heater System that would end reliance on burning gas to heat homes and businesses around the world, “especially the East European democracies desperately dependent on it during the winter months”.
The system comprises two modules called the Preservator and the Steam Chest. The Preservator preserves stored heat, while the Steam Chest, a smaller insulated vessel, serves to maintain maintains an inventory of steam to stabilise the supply system. With no moving parts or "life-limiting constituents", Holtec said.
The largest factory-manufactured system envisaged is the HI-HEAT 100, a 29.3 MWh system that can deliver cycle steam at the desired rate of flow to a district heating grid. "If adequately replenished with intermittent surplus electric power from the grid, the HI-HEAT systems can be sized to deliver heating steam continuously and indefinitely. Because there is no limit on the number of systems that can be deployed in parallel at any site, there is no limit on the supply of steam available for district heating or any other application."
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