The use of a heavy internal wall with a ventilated air gap to store solar energy and improve summer comfort in timber frame houses

Fraisse, Gilles; Johannes, Kévyn; Trillat-Berdal, Valentin; Achard, Gilbert

doi:10.1016/j.enbuild.2005.06.010

Cited by 41 publications

(15 citation statements)

References 10 publications

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“…Studies regarding building ventilation have important experimental components, both by combined chimney effects, also using solar air collectors [16][17][18][19][20][21].…”

Section: Applications Of Solar Collectors In Ventilation Of Spacesmentioning

confidence: 99%

Solar Air Collectors for Space Heating and Ventilation Applications—Performance and Case Studies under Romanian Climatic Conditions

Budea

2014

Energies

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Solar air collectors have various applications: on the one hand, they can be used for air heating in cold seasons; on the other hand they can be used in summer to evacuate the warm and polluted air from residential, offices, industrial, and commercial buildings. The paper presents experimental results of a solar collector air, under the climatic conditions of the Southeastern Europe. The relationships between the direct solar irradiation, the resulting heat flow, the air velocity at the outlet, the air flow rate, the nominal regime of the collector and the efficiency of conversion of solar energy into thermal energy are all highlighted. Thus, it was shown that after a maximum 50 min, solar air collectors, with baffles and double air passage can reach over 50% efficiency for solar irradiation of 900-1000 W/m 2 . The article also presents a mathematical model and the results of a computational program that allows sizing solar collectors for the transfer of air, with the purpose of improving the natural ventilation of buildings. The article is completed with case studies, sizing the area to be covered with solar collectors, to ensure ventilation of a house with two floors or for an office building. In addition, the ACH (air change per hour) coefficient was calculated and compared.

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“…Studies regarding building ventilation have important experimental components, both by combined chimney effects, also using solar air collectors [16][17][18][19][20][21].…”

Section: Applications Of Solar Collectors In Ventilation Of Spacesmentioning

confidence: 99%

Solar Air Collectors for Space Heating and Ventilation Applications—Performance and Case Studies under Romanian Climatic Conditions

Budea

2014

Energies

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“…Numerical procedure called SIMPLE is used to solve the basic governing equations by using a hybrid scheme [14]. The finite volume mesh consists of many control volume using a staggered grid system.…”

Section: Mathematical Modelmentioning

confidence: 99%

Investigation of the Effect of Duct Height on the Performance of Solar Air Heater With Baffles

Jalil

Salih

Madhi

2018

JEASD

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In this study, solar air heater with straight shaped baffles is investigated numerically and experimentally to improve the thermohydraulic performance by changing the height of the duct to find the optimum value. Numerically, steady state 3D forced convection turbulent model is used to solve Navier Stokes and energy equations of airflow inside rectangular duct of solar air heater. The results showed that, the 3.75 cm duct height with air mass flow rate of 0.05 kg/s yields the highest effective efficiency. In addition, the results showed that the 2.5 cm duct height gives the highest effective efficiency for mass flow rate up to 0.0375 kg/s and it decreases as mass flow rate increases due to excessive differential pressure developed across the duct.

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“…The second direction involves the coupling of TABS with low grade energy sources, owing to the efficient heat transfer between HTF and room air even with small temperature gradient. The investigated low-grade energy sources include solar air collectors [117,118], solar-collected walls [119], buildingintegrated photovoltaic-thermal (BIPV/T) system [120][121][122], ground source [123,124,205], and natural wind [125,126]. Finally, the control strategies for TABS should be carefully determined, which directly affect the comfort conditions and energy saving potential [127].…”

Section: Thermal Massmentioning

confidence: 99%

Energy Storage by Sensible Heat for Buildings

Fan¹

2018

Handbook of Energy Systems in Green Buildings

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This chapter presents a state-of-the-art review on the available thermal energy storage (TES) technologies by sensible heat for building applications. After a brief introduction, the basic principles and the required features for desired sensible heat storage are summarized. Then, material candidates and recent advances on sensible heat or cold storage adapted for building application are discussed, each with its own characteristics, advantages, and limitations. A large section of the chapter is devoted to the sensible TES technologies for buildings, both for short-term (daily) and for long-term (seasonal) storage. Each technology is described in detail including different aspects: basic principle, development status, performance and costs, potential and barriers, today's R&D activity focus, etc. Comparisons on the advantages and limitations between different TES technologies are also made. Finally, conclusions and future directions are summarized.

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The use of a heavy internal wall with a ventilated air gap to store solar energy and improve summer comfort in timber frame houses

Cited by 41 publications

References 10 publications

Solar Air Collectors for Space Heating and Ventilation Applications—Performance and Case Studies under Romanian Climatic Conditions

Solar Air Collectors for Space Heating and Ventilation Applications—Performance and Case Studies under Romanian Climatic Conditions

Investigation of the Effect of Duct Height on the Performance of Solar Air Heater With Baffles

Energy Storage by Sensible Heat for Buildings

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