Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete
This article investigates the introduction of hybrid power plants for thermal energy production for the indoor space heating loads coverage. The plant consists of flat plate solar collectors with selective coating, water tanks as thermal energy storage and a biomass heater. A new operation algorithm...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-01-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/12/1/177 |
| _version_ | 1798006639415001088 |
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| author | Dimitris Al. Katsaprakakis Georgios Zidianakis |
| author_facet | Dimitris Al. Katsaprakakis Georgios Zidianakis |
| author_sort | Dimitris Al. Katsaprakakis |
| collection | DOAJ |
| description | This article investigates the introduction of hybrid power plants for thermal energy production for the indoor space heating loads coverage. The plant consists of flat plate solar collectors with selective coating, water tanks as thermal energy storage and a biomass heater. A new operation algorithm is applied, maximizing the exploitation of the available thermal energy storage capacity and, eventually, the thermal power production from the solar collectors. An automation system is also designed and proposed for the realization of the newly introduced algorithm. The solar-combi system is computationally simulated, using annual time series of average hourly steps. A dimensioning optimization process is proposed, using as criterion the minimization of the thermal energy production levelized cost. The overall approach is validated on a school building with 1000 m2 of covered area, located in the hinterland of the island of Crete. It is seen that, given the high available solar radiation in the specific area, the proposed solar-combi system can guarantee the 100% annual heating load coverage of the examined building, with an annual contribution from the solar collectors higher than 45%. The annually average thermal power production levelized cost is calculated at 0.15 €/kWhth. |
| first_indexed | 2024-04-11T12:57:49Z |
| format | Article |
| id | doaj.art-f65b8ea62e504246b0f74e2f48e62da1 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T12:57:49Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f65b8ea62e504246b0f74e2f48e62da12022-12-22T04:23:02ZengMDPI AGEnergies1996-10732019-01-0112117710.3390/en12010177en12010177Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in CreteDimitris Al. Katsaprakakis0Georgios Zidianakis1Wind Energy and Power Plants Synthesis Laboratory, Department of Mechanical Engineering, Technological Educational Institute of Crete, Estavromenos, 714 10 Heraklion Crete, GreeceWind Energy and Power Plants Synthesis Laboratory, Department of Mechanical Engineering, Technological Educational Institute of Crete, Estavromenos, 714 10 Heraklion Crete, GreeceThis article investigates the introduction of hybrid power plants for thermal energy production for the indoor space heating loads coverage. The plant consists of flat plate solar collectors with selective coating, water tanks as thermal energy storage and a biomass heater. A new operation algorithm is applied, maximizing the exploitation of the available thermal energy storage capacity and, eventually, the thermal power production from the solar collectors. An automation system is also designed and proposed for the realization of the newly introduced algorithm. The solar-combi system is computationally simulated, using annual time series of average hourly steps. A dimensioning optimization process is proposed, using as criterion the minimization of the thermal energy production levelized cost. The overall approach is validated on a school building with 1000 m2 of covered area, located in the hinterland of the island of Crete. It is seen that, given the high available solar radiation in the specific area, the proposed solar-combi system can guarantee the 100% annual heating load coverage of the examined building, with an annual contribution from the solar collectors higher than 45%. The annually average thermal power production levelized cost is calculated at 0.15 €/kWhth.http://www.mdpi.com/1996-1073/12/1/177heating and cooling loadsbiomass-solar combi systemsbuildings energy performance upgradesolar collectors’ simulationthermal energy storage |
| spellingShingle | Dimitris Al. Katsaprakakis Georgios Zidianakis Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete Energies heating and cooling loads biomass-solar combi systems buildings energy performance upgrade solar collectors’ simulation thermal energy storage |
| title | Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete |
| title_full | Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete |
| title_fullStr | Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete |
| title_full_unstemmed | Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete |
| title_short | Optimized Dimensioning and Operation Automation for a Solar-Combi System for Indoor Space Heating. A Case Study for a School Building in Crete |
| title_sort | optimized dimensioning and operation automation for a solar combi system for indoor space heating a case study for a school building in crete |
| topic | heating and cooling loads biomass-solar combi systems buildings energy performance upgrade solar collectors’ simulation thermal energy storage |
| url | http://www.mdpi.com/1996-1073/12/1/177 |
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