Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic
For efficient application of solar energy, a pebble bed energy storage heating system in a solar attic is optimally designed and operated. To study the characteristics of the heating system, a numerical model for the system is presented and is validated with the experiment data in the literature. Ba...
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doaj-eb9c9ef026ab48689a1e7d772bc18ce62020-11-24T22:50:35ZengMDPI AGEnergies1996-10732017-03-0110332810.3390/en10030328en10030328Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar AtticHao Cheng0Xinke Wang1Min Zhou2Department of Building Environment and Energy, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Building Environment and Energy, Xi’an Jiaotong University, Xi’an 710049, ChinaChina Northwest Architecture Design and Research Institute Co. Ltd., Xi’an, 710003, ChinaFor efficient application of solar energy, a pebble bed energy storage heating system in a solar attic is optimally designed and operated. To study the characteristics of the heating system, a numerical model for the system is presented and is validated with the experiment data in the literature. Based on the model, the influence of the envelopes of the solar house and the meteorological condition on the system performance is investigated. The results show that the envelopes, except those on the north face, with more glazed exterior surfaces can be beneficial to raise the temperature of the solar house. It is also found that outdoor temperature may have less impact on the energy storage in the system compared with solar radiation. Furthermore, through optimizing the system design and operation, solar energy can account for 56% of the energy requirement in the heating season in Xi’an (about 34° N, 108° E), which has an average altitude of 397.5 m and moderate solar irradiation. Also, the suitability of the system in northwest China is investigated, and the outcome demonstrates that the external comprehensive temperature should be more than 269 K if a 50% energy saving rate is expected.http://www.mdpi.com/1996-1073/10/3/328heating systemsolar housepebble bedsuitabilityenergy saving |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hao Cheng Xinke Wang Min Zhou |
spellingShingle |
Hao Cheng Xinke Wang Min Zhou Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic Energies heating system solar house pebble bed suitability energy saving |
author_facet |
Hao Cheng Xinke Wang Min Zhou |
author_sort |
Hao Cheng |
title |
Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic |
title_short |
Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic |
title_full |
Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic |
title_fullStr |
Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic |
title_full_unstemmed |
Optimized Design and Feasibility of a Heating System with Energy Storage by Pebble Bed in a Solar Attic |
title_sort |
optimized design and feasibility of a heating system with energy storage by pebble bed in a solar attic |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2017-03-01 |
description |
For efficient application of solar energy, a pebble bed energy storage heating system in a solar attic is optimally designed and operated. To study the characteristics of the heating system, a numerical model for the system is presented and is validated with the experiment data in the literature. Based on the model, the influence of the envelopes of the solar house and the meteorological condition on the system performance is investigated. The results show that the envelopes, except those on the north face, with more glazed exterior surfaces can be beneficial to raise the temperature of the solar house. It is also found that outdoor temperature may have less impact on the energy storage in the system compared with solar radiation. Furthermore, through optimizing the system design and operation, solar energy can account for 56% of the energy requirement in the heating season in Xi’an (about 34° N, 108° E), which has an average altitude of 397.5 m and moderate solar irradiation. Also, the suitability of the system in northwest China is investigated, and the outcome demonstrates that the external comprehensive temperature should be more than 269 K if a 50% energy saving rate is expected. |
topic |
heating system solar house pebble bed suitability energy saving |
url |
http://www.mdpi.com/1996-1073/10/3/328 |
work_keys_str_mv |
AT haocheng optimizeddesignandfeasibilityofaheatingsystemwithenergystoragebypebblebedinasolarattic AT xinkewang optimizeddesignandfeasibilityofaheatingsystemwithenergystoragebypebblebedinasolarattic AT minzhou optimizeddesignandfeasibilityofaheatingsystemwithenergystoragebypebblebedinasolarattic |
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1725672014680686592 |