Difference between revisions of "Buffer Store Control"

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* Uncontrolled heat sources, such as solar thermal, have a priority of 0. Heat much be taken if available.
* Uncontrolled heat sources, such as solar thermal, have a priority of 0. Heat much be taken if available.
* Heat sources with the same priority will be run in duty/standby and rotated.
* Heat sources with the same priority will be run in duty/standby and rotated.
* Beat sources are fired up according to store depletion, both on volume remaining and rate of depletion.
* Heat sources are fired up according to store depletion, both on volume remaining and rate of depletion.
* Heat sources of lower priority will be exercised.
* Heat sources of lower priority will be exercised.
* Modulation will be applied to heat sources where possible to match loads and minimise cycling.
* Modulation will be applied to heat sources where possible to match loads and minimise cycling.

Revision as of 12:36, 24 May 2022

Functionality

  • Heat sources are assigned a priority, representing the preferred order in which they fire, with 1 being the lead.
  • Uncontrolled heat sources, such as solar thermal, have a priority of 0. Heat much be taken if available.
  • Heat sources with the same priority will be run in duty/standby and rotated.
  • Heat sources are fired up according to store depletion, both on volume remaining and rate of depletion.
  • Heat sources of lower priority will be exercised.
  • Modulation will be applied to heat sources where possible to match loads and minimise cycling.
  • Timing functions can be applied.
  • Includes functions for override of non-critical loads, such as central heating, when store close to empty.
  • Includes functions for activation of heat dump circuits for solar thermal and biomass.
  • Includes functions for boiler loading valve and pump control (with DP switch or sensor).
  • Includes alarm functions for low/high temperature, low/high pressure, low storage, failure of heat sources.

Schematics

The following schematic was generated using our open-source Heat Network Designer software.

Hnbrschem1.svg