A heat storage device
Magazyn ciepła
The generation of energy from periodically accessible renewable resources, such as wind or solar energy, is fraught with a major disadvantage, such as the unpredictable unavailability of energy from these resources. A solution may consist in the implementation of systems for storing energy over time to be released when needed, even when its source cannot supply it. In practice, there are electrical, thermal and mechanical energy storage systems.
A thermal energy storage system achieved higher efficiency when its active medium is characterised by higher capacity. Thus, the design of such an appliance should allow the use of materials that change the physical state in the range of temperatures in the system. Another functional aspect relates to the possibility of supplying heat from the outside of the storage system by connecting the device to an external heat and/or electricity source circuit.
The designed device can be coupled with any source of thermal or electric power, which is converted to heat via electric heaters placed in the storage tank. Thus, the electricity needed to be supplied to the device can be a power grid, am electric current generator driven by a wind turbine, a water turbine, or being an element of a cogeneration system.
Technical parameters:
Range of operating temperatures– 10 - 95°C
Power of the heaters – 0.5 + 0.85 + 1.0 kW (maximum total power 2.35 kW)
Capacity of the tank – 1.1 m3
The process of charging and discharging the storage tank is monitored and controlled remotely on the operator’s desktop (also accessible online), where the current operating parameters are displayed.
Storage of energy with the use of change phase agents requires adjustment of the operating temperature to the melting and solidifying temperatures of the agent. The choice of an agent depends on the use of the installation in which the storage tank is located (e.g. the melting temperature of paraffins varied from 45 to 65oC, which will be suitable in a utility water installation). The heat capacity of such an energy storage tank when using water alone is about 4.5 MJ at a temperature increment of 1oC.
Such parameters as the capacity of a storage tank, range of temperatures, number of elements serving to receive and to transmit the energy into the storage tank are selected in dependence on the intended use of the installation and available energy resources.
The generation of energy from periodically accessible renewable resources, such as wind or solar energy, is fraught with a major disadvantage, such as the unpredictable unavailability of energy from these resources. A solution may consist in the implementation of systems for storing energy over time to be released when needed, even when its source cannot supply it. In practice, there are electrical, thermal and mechanical energy storage systems.
A thermal energy storage system achieved higher efficiency when its active medium is characterised by higher capacity. Thus, the design of such an appliance should allow the use of materials that change the physical state in the range of temperatures in the system. Another functional aspect relates to the possibility of supplying heat from the outside of the storage system by connecting the device to an external heat and/or electricity source circuit.
The designed device can be coupled with any source of thermal or electric power, which is converted to heat via electric heaters placed in the storage tank. Thus, the electricity needed to be supplied to the device can be a power grid, am electric current generator driven by a wind turbine, a water turbine, or being an element of a cogeneration system.
Technical parameters:
Range of operating temperatures– 10 - 95°C
Power of the heaters – 0.5 + 0.85 + 1.0 kW (maximum total power 2.35 kW)
Capacity of the tank – 1.1 m3
The process of charging and discharging the storage tank is monitored and controlled remotely on the operator’s desktop (also accessible online), where the current operating parameters are displayed.
Storage of energy with the use of change phase agents requires adjustment of the operating temperature to the melting and solidifying temperatures of the agent. The choice of an agent depends on the use of the installation in which the storage tank is located (e.g. the melting temperature of paraffins varied from 45 to 65oC, which will be suitable in a utility water installation). The heat capacity of such an energy storage tank when using water alone is about 4.5 MJ at a temperature increment of 1oC.
Such parameters as the capacity of a storage tank, range of temperatures, number of elements serving to receive and to transmit the energy into the storage tank are selected in dependence on the intended use of the installation and available energy resources.
Boosting RurAl Bioeconomy Networks following multi-actor approaCHES - BRANCHES
Ongoing | 2021-2023
- Main funding source
- Horizon 2020 (EU Research and Innovation Programme)
- Geographical location
- Finland