Investigation on a building-integrated passive solar energy technology for air ventilation, clean water and power

Sivaram, P.M.; Balu, Mande Amol; Premalatha, M.; Appusamy, Arunagiri

doi:10.1016/j.enconman.2020.112739

Cited by 30 publications

(7 citation statements)

References 46 publications

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“…268.9 Â 10 3 À P w 1=3 (11) Thus, the amount of freshwater production can be calculated by Equation (12), in which h fg is the latent heat of vaporization and A w is the water surface area…”

Section: Model Descriptionmentioning

confidence: 99%

“…However, higher concentration of salt comprises higher storage of thermal energy during the sunny hours. In another research, Sivaram et al [ 11 ] developed a building‐integrated passive solar energy technology for the generation of power and water in addition to the air ventilation for the attached building prototype in 2020. The system consisted of solar PV and solar still, integrated with chimney, where the solar desalination performance was improved in freshwater production up to 11% in the integrated system.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Study on the Integrated Solar Chimney System with Solar Still for Water Desalination

et al. 2023

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The integrated solar chimney and solar still system offers a promising approach for simultaneous water and electricity production. However, there have been only few experimental studies conducted on this combined design. In this regard, a solar chimney with 12 m height and 3.4 m collector diameter is constructed and accompanied with solar stills, installed inside the collector. The maximum velocity at the chimney's inlet for the combined system reaches near 2 m s−1, while it is 0.3 m s−1 smaller than the conventional arrangement. The maximum water production is 861 g h−1 which is attained in the evening hours. In the normal solar chimney without solar stills, air temperature inside the collector reaches its peak at 64 °C when solar radiation is maximum. While in the integrated system, this value is 59 °C which reaches with 2 h delay due to water heat storage. In addition, it is found that the effect of height of vapor space inside the basin can be negligible while the lower water depth in the basin provides higher water production.

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Section: Model Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Integrated Solar Chimney System with Solar Still for Water Desalination

et al. 2023

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“…In the Jimenez-Xaman et al's study [42], they designed a solar chimney that improved summer and winter ventilation rates by 8-45% and 1.16-24.89%, respectively. From an economic lens, Sivaram et al [43] indicated that as 30% of photovoltaic firms are government-owned, the cost of solar panels using solar chimneys could decrease by 18%. Jamali et al's research [44,45] used a solar chimney to cool the translucent PV system (STPV-SC), demonstrating that the average STPV-SC temperature could decrease to 15°C, improving power generation efficiency by approximately 29%.…”

Section: Solar Chimneymentioning

confidence: 99%

Research on the Passive Cooling System of Solar Photovoltaic Panel Based on Hybrid Solar Chimney and Ventilator

Zhang,

Misaran,

Adzrie

et al. 2023

J. Phys.: Conf. Ser.

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The efficiency of solar photovoltaic (PV) power generation is significantly impacted by factors such as ambient temperature, surrounding wind speed, and the temperature of the solar PV panels. The power generation efficiency of these panels diminishes by approximately 0.5% for each incremental rise in their temperature. To mitigate this effect, two primary methods for cooling solar photovoltaic panels are considered: active and passive cooling techniques. This review paper delves into an extensive body of literature on solar passive cooling systems, highlighting the vital role of passive cooling technology in enhancing the efficiency of solar PV power generation. We investigate the structure and cooling effect of diverse passive cooling systems, with a specific focus on the application of solar chimneys and ventilators in cooling systems for solar PV panels. Our study reveals that solar chimneys, using buoyancy, can decrease the temperature of solar PV panels by as much as 15 degrees, thereby augmenting power generation efficiency. Furthermore, the deployment of ventilator technology can boost the efficiency of solar PV power generation to an impressive 46.54%. In conclusion, this paper proposes the synergistic use of solar chimneys and ventilators to improve solar PV panel efficiency, extend their lifespan, and reduce the environmental impact resulting from inefficient solar PV panels. This comprehensive approach should inform future practices.

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“…As decarbonization work has developed in recent years, the conversion from coal to electricity and from coal to gas has achieved remarkable results, and the proportion of clean energy in China has greatly increased. The carbon emission per unit of clean energy consumption is relatively small, so it has a significant effect on building emission reductions [59]. The carbon emission from buildings defined in this study is the carbon emission in the operation stage of residential buildings.…”

Section: Continuously Optimize the Energy Consumption Structure Of Bu...mentioning

confidence: 99%

Carbon Mitigation in the Operation of Chinese Residential Buildings: An Empirical Analysis at the Provincial Scale

et al. 2022

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The rapidly growing carbon emissions of residential building operations have become an obstacle to China’s commitment to achieving its carbon-neutral goals by 2060, but they also demonstrate great carbon mitigation potential. To help buildings reach carbon neutrality targets, this study decomposes the drivers of carbon emissions and evaluates the changes in carbon mitigation of residential buildings across 30 Chinese provinces from 2000 to 2018. The results indicate that (1) the operational carbon intensity increased in most provinces and the average annual growth rate across the 30 provinces was 4.2%; (2) from 2001 to 2018, North China and Northeast China had the highest average annual carbon mitigation intensity, at 602.7 and 376.9 kg of carbon dioxide per household, respectively. However, Northwest China had the highest carbon mitigation efficiency, with a carbon mitigation rate of 23.5%; and (3) in most cases, the total carbon mitigations of the operational residential buildings assessed at the provincial scale higher than those assessed nationwide, with a difference of 14.4 million tons of carbon dioxide on average. In addition, this study reviewed the energy efficiency codes for residential buildings and summarized effective energy efficiency measures. Overall, this study fills a gap in our understanding of carbon mitigation tools and provides a reference for the evaluation of historical carbon mitigation effects in the operation of residential buildings.

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Investigation on a building-integrated passive solar energy technology for air ventilation, clean water and power

Cited by 30 publications

References 46 publications

Experimental and Numerical Study on the Integrated Solar Chimney System with Solar Still for Water Desalination

Experimental and Numerical Study on the Integrated Solar Chimney System with Solar Still for Water Desalination

Research on the Passive Cooling System of Solar Photovoltaic Panel Based on Hybrid Solar Chimney and Ventilator

Carbon Mitigation in the Operation of Chinese Residential Buildings: An Empirical Analysis at the Provincial Scale

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