thermal energy storage - mechanical engineeringmammoli/me562_stuff/slides/thermal_store.pdf ·...
TRANSCRIPT
![Page 1: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/1.jpg)
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
ME 462/562: Sustainable Energy – an Exergy Analysis Spring 2014
Thermal Energy Storage
![Page 2: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/2.jpg)
Thermal storage 2/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Why thermal storage?● Supply and demand for heat / cool not coincident● Increase in capacity without bigger equipment● Better operation of co-gen plants● Dispatchability of solar thermal electric plants● Shift energy purchase to low-cost period● Increase system reliability● Integration with other functions
![Page 3: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/3.jpg)
Thermal storage 3/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
High-temperature, utility-scale
![Page 4: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/4.jpg)
Thermal storage 4/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Low-temperature, utility-scale
![Page 5: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/5.jpg)
Thermal storage 5/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Low-temperature, residential scale
![Page 6: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/6.jpg)
Thermal storage 6/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Cold storage, commercial
![Page 7: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/7.jpg)
Thermal storage 7/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Residential peak power by end-use
thermal storage can addresspart or all of the cooling load
![Page 8: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/8.jpg)
Thermal storage 8/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
System benefits of thermal storage
peak load
unused baseload
![Page 9: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/9.jpg)
Thermal storage 9/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Thermal storage for trough CSP
![Page 10: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/10.jpg)
Thermal storage 10/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Solana CSP plant (Gila Bend, AZ)● Solar field
● Abengoa solar – Rioglass mirrors – Schott receivers; thermal oil heat medium
● Power block
● 280 MW Rankine-cycle steam turbine with wet cooling and natural gas backup
● Thermal storage
● 2-tank indirect; 6 hours capacity; molten salt
![Page 11: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/11.jpg)
Thermal storage 11/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Storage for power tower CSP
![Page 12: Thermal Energy Storage - Mechanical Engineeringmammoli/ME562_stuff/slides/thermal_store.pdf · Thermal storage 10/12 Mechanical Engineering ME462/562 Sustainable Energy: an Exergy](https://reader033.vdocuments.mx/reader033/viewer/2022042915/5f53aa8b3586b8480a02c7c0/html5/thumbnails/12.jpg)
Thermal storage 12/12
Mechanical EngineeringME462/562 Sustainable Energy:
an Exergy Analysis
Gemasolar plant (Seville, Spain)● Solar field
● 2650 x 120 m2 heliostats, 140 m tower, molten salt heat medium 290C to 565C
● Power block
● 19.9 MW Rankine-cycle steam turbine with wet cooling and natural gas backup
● Thermal storage
● 2-tank direct; 15 hours capacity; molten salt