Energy conservation in residential buildings by incorporating Passive Solar and Energy Efficiency Design Strategies and higher thermal mass

Albayyaa, Haider; Hagare, Dharmappa; Saha, Swapan K.

doi:10.1016/j.enbuild.2018.09.036

Cited by 71 publications

(34 citation statements)

References 16 publications

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“…Other studies state that the decrease varies from several percent to more than 80 % [19]. The latest research shows that by applying this combination, heating costs in the winter can be reduced by up to 58 % [20].…”

Section: Primary Function Of a Complex Microclimate • In Order To Redmentioning

confidence: 98%

Functionality assessment of building a micro-climate system utilising solar energy in a cold climate

Januševičius¹,

Bielskus²,

Martinaitis³

2019

SV-JME

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Bringing clean and affordable energy to the market is one of the goals of sustainable development set by the United Nations. Thermal comfort is an important aspect of efficient energy use, which plays a crucial role in ensuring health and well-being in the built environment. The majority of energy in the building sector is consumed by microclimate systems that provide thermal comfort for occupants. Design strategies, such as passive and active solar and thermal mass utilisation, reduce heat demand. When aiming to optimise thermal comfort, a reasonable combination is important in order to increase the utilisation of clean renewable energy, while conserving other resources. In this paper, a method to generate design charts is proposed to assess early design options. It aids in the selection of design parameters, based on targeted seasonal thermal comfort as a function of a complex microclimate system. In order to explore the interaction between design variables, a TRNSYS simulation model was used. An analysis of comfort conditions (based on the EN ISO 7730 method) in building spaces was performed to assess functionality. The simulation model accounted for the thermal constant in building spaces, solar utilisation and gain through glass surfaces, solar collectors and active accumulation, energy transportation, and distribution efficiency. The presented case study results showed that the lack of space heating capacity (3/4 of the calculated quantity) could be compensated for by thermal mass and a solar thermal collector without compromising thermal comfort (the percentage of people dissatisfied (PPD) was below 10 %). The highest solar fraction (36 %) was reached with the lowest fractions of space heating capacity (1/2 of the calculated quantity), due to increased demands, but this design option did not satisfy the thermal comfort conditions (PPD > 17 %).

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Section: Primary Function Of a Complex Microclimate • In Order To Redmentioning

confidence: 98%

Functionality assessment of building a micro-climate system utilising solar energy in a cold climate

Januševičius¹,

Bielskus²,

Martinaitis³

2019

SV-JME

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“…A technical and economic study was carried out to examine and introduce building retrofitting measures for a school building in Jordan, and the findings suggested that the proposed measures could save approximately 55% of energy with a payback period of 5.5 years [22]. Various passive solar and energy-saving techniques, including double glazing openings, shading devices, and different construction materials, were applied to a two-story detached house situated in Sydney, Australia; the findings demonstrated that the application of passive solar methods and high thermal mass in buildings can significantly reduce the energy consumption [23]. Lan et al adopted a holistic zero energy building design for residential buildings in Singapore and carried out a sensitivity analysis, showing that WWR, roof solar absorptance, and window status are the determining factors on indoor thermal comfort and energy efficiency [24].…”

Section: Introductionmentioning

confidence: 98%

Modeling Nearly Zero Energy Buildings for Sustainable Development in Rural Areas

et al. 2020

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The energy performance of buildings and energy-saving measures have been widely investigated in recent years. However, little attention has been paid to buildings located in rural areas. The aim of this study is to assess the energy performance of two-story residential buildings located in the mountainous village of Palangan in Iran and to evaluate the impact of multiple parameters, namely building orientation, window-to-wall ratio (WWR), glazing type, shading devices, and insulation, on its energy performance. To attain a nearly zero energy building design in rural areas, the building is equipped with photovoltaic modules. The proposed building design is then economically evaluated to ensure its viability. The findings indicate that an energy saving of 29% can be achieved compared to conventional buildings, and over 22 MWh of electricity can be produced on an annual basis. The payback period is assessed at 21.7 years. However, energy subsidies are projected to be eliminated in the near future, which in turn may reduce the payback period.

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“…Regulating the amount of thermal mass can increase the time lag and decrease the temperature fluctuation in a conditioned space. Optimizing the thermal mass has been regarded as an important measure for passive heating/cooling strategies and for designing low-energy buildings [5][6][7]. Besides, the phase change materials (PCMs) embedded in a building enclosure are regarded as a useful passive method to increase in heat storage capacity and thermal inertia further [8].…”

Section: Introductionmentioning

confidence: 99%

The Impacts of a Building’s Thermal Mass on the Cooling Load of a Radiant System under Various Typical Climates

Liu

Niu

2020

Energies

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Cooling load is difficult to predict for a radiant system, because the interaction between a building’s thermal mass and radiation heat gain has not been well defined in a zone with a cooling surface. This study aims to reveal the effect of thermal mass in an external wall on the transmission load in a space with an active cooling surface. We investigated the thermal performances in a typical office building under various weather conditions by dynamic simulation with Energy-Plus. It was found that the thermal mass in the inside concrete layer had positives in terms of indoor temperature performance and energy conservation. The peak cooling load of the hydronic system decreases 28% in the proper operating state, taking into account the effect of the thermal mass in an external wall. Compared to the performances in zones with equivalent convective air systems (CASs), the peak cooling load and the accumulated load of the combined system (radiant system coupled by fresh air system) are higher by 9%–11% and 3%–4%, respectively. The effect of thermal mass is evident in a transient season with mild weather, when the relative effects are about 45% and 60%, respectively, for a building with radiant systems and a building with equivalent CASs.

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Energy conservation in residential buildings by incorporating Passive Solar and Energy Efficiency Design Strategies and higher thermal mass

Cited by 71 publications

References 16 publications

Functionality assessment of building a micro-climate system utilising solar energy in a cold climate

Functionality assessment of building a micro-climate system utilising solar energy in a cold climate

Modeling Nearly Zero Energy Buildings for Sustainable Development in Rural Areas

The Impacts of a Building’s Thermal Mass on the Cooling Load of a Radiant System under Various Typical Climates

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