scholarly journals Thermal energy storage for building heating and cooling applications. Quarterly progress report, April--June 1976

1976 ◽  
Author(s):  
H.W. Hoffman ◽  
R.J. Kedl
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Progress Report ◽  
Heating And Cooling

scholarly journals Occupant comfort in Nearly Zero Energy Buildings (nZEB) by using the building structure for demand side management (DMS)

2020 ◽  
Vol 172 ◽  
pp. 06011
Author(s):  
Ferdinand Sigg ◽  
Harald Krause
Keyword(s):  
Energy Storage ◽  
Surface Temperature ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Time Shift ◽  
Optimal Time ◽  
Building Structure ◽  
Storage Element ◽  
Application Range ◽  
Heating And Cooling

This research project aims to increase the application range of Thermally Activated Building Systems (TABS). Usually TABS are used for heating and cooling purpose of buildings. The application range of the usage as energy storage element is limited by the surface temperature of the element to avoid overheating. Via a thermal decoupling of the thermal activated part with insulation from the building structure, it is possible to use TABS as an thermal energy storage. The results show a significant opportunity to time-shift the purchase of energy. The results show that it is possible to use TABS as a thermal energy storage element. It’s shown that the purchase of electrician energy for heating purpose can be shifted to economical or ecological optimal time points, for example if renewable energy is abundant in the electrical grid. The heating demand, covered by thermally charged TABS elements can be supplied by a fraction of 95%. Common TABS with a limited surface temperature can reach a coverage rate of 64 %. Nevertheless, the mean air temperature increases for this task by 1.1 K and the heat demand by 15.0 %.

scholarly journals Low carbon heating and cooling by combining various technologies with Aquifer Thermal Energy Storage

2019 ◽  
Vol 665 ◽  
pp. 1-10 ◽  
Author(s):  
M. Pellegrini ◽  
M. Bloemendal ◽  
N. Hoekstra ◽  
G. Spaak ◽  
A. Andreu Gallego ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Low Carbon ◽  
Heating And Cooling ◽  
Aquifer Thermal Energy Storage

Mechanical Performance of Concrete Thermal Energy Storage Subject to Operating Thermal Demands

2020 ◽  
Author(s):  
Shuoyu Wang ◽  
Ahmed Abdulridha ◽  
Spencer Quiel ◽  
Clay Naito ◽  
Muhannad Sulieman ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Power Plants ◽  
Thermal Loading ◽  
Mechanical Performance ◽  
High Strength ◽  
Concrete Block ◽  
Principal Stresses ◽  
Heating And Cooling

Abstract This paper presents a lab-scale investigation of the use of structural concrete for sensible heat storage in power plants. Transient thermal and mechanical analyses are simulated via coupled finite element models to study the thermo-mechanical performance of a cylindrical concrete block with 4-in diameter and 8-in length under thermal loading. The model is validated by performing experiments on high strength concrete (HSC) cylinders with this geometry in an oven, which heats the specimens from the outside. The models are then modified to simulate thermal energy storage (TES) application with thermal loading applied at the interior surface of a hole running through the longitudinal center of the cylinder. Thermal cycles have a varying heating rate (5, 10, or 24 hours) followed by consistent durations of soaking (2 hours) and cooling (13 hours). In the TES simulations, a steel jacket is also applied to the external surface of the concrete cylinder to provide confinement. The resulting thermal distribution and maximum principal stresses during heating and cooling are observed as a function of time. This study provides insight into the mechanical requirements and impact on material integrity for concrete modules subjected to representative TES heating regimes.

On the performance of ground coupled seasonal thermal energy storage for heating and cooling: A Canadian context

2019 ◽  
Vol 250 ◽  
pp. 593-604 ◽  
Author(s):  
Matthew Fong ◽  
Mahmoud A. Alzoubi ◽  
Jundika C. Kurnia ◽  
Agus P. Sasmito
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Heating And Cooling ◽  
Canadian Context

scholarly journals Fifth-Generation District Heating and Cooling Substations: Demand Response with Artificial Neural Network-Based Model Predictive Control

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4339 ◽  
Author(s):  
Simone Buffa ◽  
Anton Soppelsa ◽  
Mauro Pipiciello ◽  
Gregor Henze ◽  
Roberto Fedrizzi
Keyword(s):  
Energy Transfer ◽  
Energy Storage ◽  
Model Predictive Control ◽  
Predictive Control ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
District Heating ◽  
Heating And Cooling ◽  
Fifth Generation ◽  
Artificial Neural

District heating and cooling (DHC) is considered one of the most sustainable technologies to meet the heating and cooling demands of buildings in urban areas. The fifth-generation district heating and cooling (5GDHC) concept, often referred to as ambient loops, is a novel solution emerging in Europe and has become a widely discussed topic in current energy system research. 5GDHC systems operate at a temperature close to the ground and include electrically driven heat pumps and associated thermal energy storage in a building-sited energy transfer station (ETS) to satisfy user comfort. This work presents new strategies for improving the operation of these energy transfer stations by means of a model predictive control (MPC) method based on recurrent artificial neural networks. The results show that, under simple time-of-use utility rates, the advanced controller outperforms a rule-based controller for smart charging of the domestic hot water (DHW) thermal energy storage under specific boundary conditions. By exploiting the available thermal energy storage capacity, the MPC controller is capable of shifting up to 14% of the electricity consumption of the ETS from on-peak to off-peak hours. Therefore, the advanced control implemented in 5GDHC networks promotes coupling between the thermal and the electric sector, producing flexibility on the electric grid.

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