Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings
Heat supply for residential buildings is still mainly based on fossil fuels and is thus a significant contributor to CO2 emissions. Renewable heating remains a technological challenge, often for the reason that during cold weather periods heat demand increases drastically whereas renewable productio...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2025-06-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1617554/full |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849417786950942720 |
|---|---|
| author | Matthias Schmidt Venizelos Sourmelis Viktor Kühl Marc Linder |
| author_facet | Matthias Schmidt Venizelos Sourmelis Viktor Kühl Marc Linder |
| author_sort | Matthias Schmidt |
| collection | DOAJ |
| description | Heat supply for residential buildings is still mainly based on fossil fuels and is thus a significant contributor to CO2 emissions. Renewable heating remains a technological challenge, often for the reason that during cold weather periods heat demand increases drastically whereas renewable production minimizes. Reactive solids produced by renewable energy can be an energy storage and carrier to flexibly leverage the often extreme seasonal discrepancy of residential heat demand. This work demonstrates a fully integrated thermochemical heating system based on calcium oxide and water operational for the first time in a real building environment. With the extraction of the thermochemically stored energy at a temperature level of 60°C we proved that the technology can be integrated into existing heating infrastructures of buildings, by replacing fossil fuel-based burners. This work advances the technology readiness level of thermochemical energy storage to validation in relevant environment. |
| format | Article |
| id | doaj-art-a609d464703c4d24a905fb16cf5be956 |
| institution | Kabale University |
| issn | 2296-598X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj-art-a609d464703c4d24a905fb16cf5be9562025-08-20T03:32:37ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2025-06-011310.3389/fenrg.2025.16175541617554Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildingsMatthias SchmidtVenizelos SourmelisViktor KühlMarc LinderHeat supply for residential buildings is still mainly based on fossil fuels and is thus a significant contributor to CO2 emissions. Renewable heating remains a technological challenge, often for the reason that during cold weather periods heat demand increases drastically whereas renewable production minimizes. Reactive solids produced by renewable energy can be an energy storage and carrier to flexibly leverage the often extreme seasonal discrepancy of residential heat demand. This work demonstrates a fully integrated thermochemical heating system based on calcium oxide and water operational for the first time in a real building environment. With the extraction of the thermochemically stored energy at a temperature level of 60°C we proved that the technology can be integrated into existing heating infrastructures of buildings, by replacing fossil fuel-based burners. This work advances the technology readiness level of thermochemical energy storage to validation in relevant environment.https://www.frontiersin.org/articles/10.3389/fenrg.2025.1617554/fullthermochemcial energy storageseasonal energy storagecalcium hydroxide (Ca(OH)2)calcium oxide (CaO)thermal energy storage (TES) systems |
| spellingShingle | Matthias Schmidt Venizelos Sourmelis Viktor Kühl Marc Linder Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings Frontiers in Energy Research thermochemcial energy storage seasonal energy storage calcium hydroxide (Ca(OH)2) calcium oxide (CaO) thermal energy storage (TES) systems |
| title | Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings |
| title_full | Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings |
| title_fullStr | Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings |
| title_full_unstemmed | Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings |
| title_short | Zero emission heating with calcium oxide and water: development and demonstration of first pilot scale thermochemical heating system for buildings |
| title_sort | zero emission heating with calcium oxide and water development and demonstration of first pilot scale thermochemical heating system for buildings |
| topic | thermochemcial energy storage seasonal energy storage calcium hydroxide (Ca(OH)2) calcium oxide (CaO) thermal energy storage (TES) systems |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1617554/full |
| work_keys_str_mv | AT matthiasschmidt zeroemissionheatingwithcalciumoxideandwaterdevelopmentanddemonstrationoffirstpilotscalethermochemicalheatingsystemforbuildings AT venizelossourmelis zeroemissionheatingwithcalciumoxideandwaterdevelopmentanddemonstrationoffirstpilotscalethermochemicalheatingsystemforbuildings AT viktorkuhl zeroemissionheatingwithcalciumoxideandwaterdevelopmentanddemonstrationoffirstpilotscalethermochemicalheatingsystemforbuildings AT marclinder zeroemissionheatingwithcalciumoxideandwaterdevelopmentanddemonstrationoffirstpilotscalethermochemicalheatingsystemforbuildings |