Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ
The objective of this investigation is to present a novel concept for the optimum exploitation of volatile electricity from renewable energy sources. The idea of the Carnot battery is extended to a general concept for trigeneration which can be called “power to XYZ”. This idea is applied for the bui...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/12/3/970 |
| _version_ | 1797489501893820416 |
|---|---|
| author | Evangelos Bellos Panagiotis Lykas Christos Tzivanidis |
| author_facet | Evangelos Bellos Panagiotis Lykas Christos Tzivanidis |
| author_sort | Evangelos Bellos |
| collection | DOAJ |
| description | The objective of this investigation is to present a novel concept for the optimum exploitation of volatile electricity from renewable energy sources. The idea of the Carnot battery is extended to a general concept for trigeneration which can be called “power to XYZ”. This idea is applied for the building sector where there are needs for cooling production, space-heating production/domestic hot water production and electricity. More specifically, volatile electricity feeds a multi-stage heat pump that produces cold storage at 0 °C for cooling, medium heating storage at 50 °C for space heating and high thermal storage at around 115 °C for future utilization in an organic Rankine cycle for electricity production. The storage is performed in three different temperature levels, with latent storage proposed for proper long-term and efficient storage. The use of ice is suggested especially for cold storage in order to make the design a cost-effective one. This work is a theoretical preliminary thermodynamic analysis performed with a model created in Engineering Equation Solver. The results indicate the system’s maximum exergy efficiency is found at 45.28%, while the respective energy efficiency is found at 322.16%. Moreover, this work includes parametric studies and calculations about the operating margins of the suggested system. |
| first_indexed | 2024-03-10T00:17:30Z |
| format | Article |
| id | doaj.art-fa7f53d23d9648a383eefc87ea104a74 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:17:30Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-fa7f53d23d9648a383eefc87ea104a742023-11-23T15:49:44ZengMDPI AGApplied Sciences2076-34172022-01-0112397010.3390/app12030970Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZEvangelos Bellos0Panagiotis Lykas1Christos Tzivanidis2Thermal Department, School of Mechanical Engineering, National Technical University of Athens, Zografou, Heroon Polytechniou 9, 15780 Athens, GreeceThermal Department, School of Mechanical Engineering, National Technical University of Athens, Zografou, Heroon Polytechniou 9, 15780 Athens, GreeceThermal Department, School of Mechanical Engineering, National Technical University of Athens, Zografou, Heroon Polytechniou 9, 15780 Athens, GreeceThe objective of this investigation is to present a novel concept for the optimum exploitation of volatile electricity from renewable energy sources. The idea of the Carnot battery is extended to a general concept for trigeneration which can be called “power to XYZ”. This idea is applied for the building sector where there are needs for cooling production, space-heating production/domestic hot water production and electricity. More specifically, volatile electricity feeds a multi-stage heat pump that produces cold storage at 0 °C for cooling, medium heating storage at 50 °C for space heating and high thermal storage at around 115 °C for future utilization in an organic Rankine cycle for electricity production. The storage is performed in three different temperature levels, with latent storage proposed for proper long-term and efficient storage. The use of ice is suggested especially for cold storage in order to make the design a cost-effective one. This work is a theoretical preliminary thermodynamic analysis performed with a model created in Engineering Equation Solver. The results indicate the system’s maximum exergy efficiency is found at 45.28%, while the respective energy efficiency is found at 322.16%. Moreover, this work includes parametric studies and calculations about the operating margins of the suggested system.https://www.mdpi.com/2076-3417/12/3/970Carnot batterytrigenerationphase change materialsstoragesustainability |
| spellingShingle | Evangelos Bellos Panagiotis Lykas Christos Tzivanidis Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ Applied Sciences Carnot battery trigeneration phase change materials storage sustainability |
| title | Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ |
| title_full | Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ |
| title_fullStr | Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ |
| title_full_unstemmed | Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ |
| title_short | Pumped Thermal Energy Storage System for Trigeneration: The Concept of Power to XYZ |
| title_sort | pumped thermal energy storage system for trigeneration the concept of power to xyz |
| topic | Carnot battery trigeneration phase change materials storage sustainability |
| url | https://www.mdpi.com/2076-3417/12/3/970 |
| work_keys_str_mv | AT evangelosbellos pumpedthermalenergystoragesystemfortrigenerationtheconceptofpowertoxyz AT panagiotislykas pumpedthermalenergystoragesystemfortrigenerationtheconceptofpowertoxyz AT christostzivanidis pumpedthermalenergystoragesystemfortrigenerationtheconceptofpowertoxyz |