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    General information

    How does a Thermal Battery work?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.


    Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized.


    The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).

    What makes EnergyNest different to electrochemical batteries?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized. The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).

    What kind of temperatures can your Thermal Battery handle?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.
     
     
    Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized.

     

    The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).

    What are the heat losses over time?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized. The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).

    What maintenance does the Thermal Battery require?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized. The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).

    Key differences between Oil ThermalBattery-System and Steam ThermalBattery-System?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized. The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).

    How does a Thermal Battery work?

    Energy in form of heat is transferred to the Thermal Battery using a heat transfer fluid (HTF). The HTF can in principle be any fluid with adequate heat transfer properties. In most cases this is either thermal oil or water/steam.Heat from the HTF is transferred to the solid-state storage material HEATCRETE® via cast in “U-shaped” carbon steel heat exchanger tubes. There is no direct contact between the heat transfer fluid and HEATCRETE®; the heat transfer occurs through the heat exchanger steel tubes only. The thermal storage element design using U-tubes ensures that thermal stresses in the axial direction are minimized. The thermal elements also include a steel casing which has three functions; being a permanent casting form, an external reinforcement reducing the risk of spalling or cracking, and HTF containment (in the very unlikely case of HTF leakage inside the element).
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