Morden Hall
https://www.nationaltrust.org.uk/morden-hall-park
The ‘Livinggreen Project’ was an HLF and EU funded initiative to show how heritage assets can be updated to be highly sustainable. It was implemented in five European cities. Morden Hall Park in South London, with over 750,000 visitors a year, was chosen as the sole UK project.
The site achieved a BREEAM ‘Excellent’ award, however the true potential of the installation has never been fully realised and is in need of some TLC.
At Thermal Integration we were responsible for the original hydraulic design of the system, based on the use of thermal stores and unvented storage to pull all heat sources and loads together as efficiently as possible.
Following ten years of declining performance, the National Trust has agreed to allow us to revisit the installation with a view to realising its original potential, to understand where things went wrong, and to learn from their experiences so that future renewables projects are guaranteed to work as intended.
The mix of renewable technologies on the site makes it unique, and a perfect case study for demonstrating how open source control and monitoring can make all the difference in outcomes. The site is also open to the public as a demonstration of renewables, so ensuring the system works properly is paramount to establishing confidence in the various technologies.
The Design
Case_Study_Morden_Hall
Schematic_and_Wiring
291162-M-103_Htg_&_Plant_Schematic_(A1)
The Plan
- Install an open control system to provide remote access and allow monitoring to proceed
- Install heat meters and temperature sensors to understand how heat generators are performing
- Review the plumbing and recorded operational data to work out a full list of problems
- Fix the problems
- Monitor performance
- Create a simplified client interface allowing them to more easily control the system and see problems as they occur
- Setup alarm routing so that any future problems are trapped and reported
- Generate operational data that shows how the various renewables operate under different weather and load conditions
(1) Install an open control system
Parts List 1
| Description | Quantity | Cost | Notes |
|---|---|---|---|
| Open Source Control Panel | 1 | ||
| NTC Pipe Temperature Sensors | 8 | ||
| NTC Probe Temperature Sensors | 4 | For cylinders (inc. hex bushes) | |
| Heat Meters | 2 | Solar thermal & Heat Pump | |
| 2 Core 0.75mm Silicone Cable | 50m |