A Building energy simulation methodology to validate energy balance and comfort in zero energy buildings

Moreno, B.; Gonzalo, Fernando del Ama; Fernández, J; Lauret, Benito; Hernández, J.A.

doi:10.30521/jes.623285

Cited by 10 publications

(10 citation statements)

References 34 publications

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“…Two methods have traditionally been applied to model energy consumption in the residential sector [13]:…”

Section: Methodsmentioning

confidence: 99%

“…The reduction of the cooling requirement is obtained by the following formula: Reduction = ,-.%/ ,-.+ ,-.% (6) The maximum cooling requirement is the largest value in the data set provided by the simulation software for estimating the cooling requirement of a given configuration. Figures 12,13,14 and 15 show the evolution of the cooling energy requirement for the living room and the room, according to the different composites. The maximum values of the cooling requirement are given in Tables 6 and 7.…”

Section: Evolution Of the Cooling Requirementmentioning

confidence: 99%

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Dynamic Thermal Study of a Building Insulated with Local Biosource Materials and Analysis of Consumption

Sèmassou¹,

Fannou²,

Vodounnou³

et al. 2021

AJEE

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The quality of infrastructure, including buildings, is an indicator of a country's development status. However, it must be noted that these buildings entail high energy costs and also contribute to the global greenhouse effect. The building sector is therefore a crucial issue in terms of adapting to climate change because it is at the heart of a dual energy and environmental problem. To address this challenge, energy efficiency policies are increasingly being adopted worldwide, with the aim of improving the energy performance of buildings. In the present work, the thermo-physical properties of four types of materials, namely: "cement and roast fibre" composite, "cement and rice husk" composite, "agglomerate" and "cement and bar soil" composite, were exploited to implement thermal simulations under TRNSYS environment. The aim was to determine the thermal contributions of the walls built with these materials and those allowing a better comfort in the building by estimating and comparing the energy needs of the proposed variants with those of the reference building. The study showed that the walls made of "cement and rice husks" composite and "cement and roast tree fibres" composite allow to reduce respectively by 20% and 11%, the cooling needs linked to air conditioning for the living room, and respectively by 32% and 27% for the bedroom, compared to the reference building made of agglomerate (with a thickness e= 0.15 m). For the walls made of "cement and earth bar", the cooling requirement increased by 31% for the living room and decreased by 5% for the bedroom, compared to the "chipboard" reference building. Furthermore, the TEWI evaluation showed that the "cement and rice husk" and "cement and roast fibre" composites have a lower environmental impact.

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“…Two methods have traditionally been applied to model energy consumption in the residential sector [13]:…”

Section: Methodsmentioning

confidence: 99%

Section: Evolution Of the Cooling Requirementmentioning

confidence: 99%

Dynamic Thermal Study of a Building Insulated with Local Biosource Materials and Analysis of Consumption

Sèmassou¹,

Fannou²,

Vodounnou³

et al. 2021

AJEE

View full text Add to dashboard Cite

show abstract

“…High interest for energy consumption has occurred, therefore the technologies keep developing and the range of useful solutions to improve the level of comfort increases. European Union (EU) and the whole world faces climate change caused by the emissions of greenhouse gases [1,2]. According to the action plan developed by United Nations (UN) "Agenda 21" regarding sustainable development, environmentally friendly technologies are considered those that protect and reduce the adverse environmental impact throughout the material life cycle-from the extraction of raw materials and ending with the product / material further use or recycling.…”

Section: Introductionmentioning

confidence: 99%

Low density hemp shive particleboards for latent thermal energy storage performance

Kirilovs¹

2021

Journal of Energy Systems

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Over the past few decades, climate change and the search for renewable energy sources have become hot topics within the research community. About 30% of the world's energy consumption is in the heating and cooling sector of residential buildings. Such materials can reduce the temperature variations, leading to an improvement in human comfort and decreasing at the same time the energy consumption of buildings. This paper assesses the integration of a microencapsulated phase change material (PCMs) with organic composite phase change as the core material and melamine-formaldehyde as the shell in hemp shive intended for building indoor wallboard. Paraffin waxes are cost-effective and have moderate thermal energy storage density but low thermal conductivity and, hence, require large surface area. Commercial manufactured organic PCM-S28 with a 25-29°C melting point received from MikroCaps Ltd. (Slovenia) has been used. The experimental boards were made using cold pressing technology and with 10% Kleiberit Urea Formaldehyde resin (UF) glue as a binding agent. The experimental boards were made 25 mm thick with a density of 310 ± 20 kg/m3 that qualify them as low-density boards. By adding 5% nanocapsules during the board manufacturing process, the heat capacity is increased by 28%.

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“…Retrofitting old buildings (or not old but whose thermal performance is insufficient) is essential in decreasing energy consumption and improving indoor comfort. The first step towards the goal of achieving Net Zero Energy Buildings (NZEBs) has been the reduction of the energy demand through increasing the thermal resistance in the walls and roof, and the use of high-performance glazing in windows for thermal insulation is commonly considered the primary energy efficiency measure taken in most buildings (Martinez, 2017;Moreno et al, 2019). Once the decision for retrofitting is taken, thermal insulation is a robust solution as it increases the overall thermal resistance of the building envelope (Martinez, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…The results show that BIM applications, due to its parametric design ability, can effectively help in optimizing wall construction types in tropical climate areas before the construction phase . Moreno et al (2019) examined the validation of the energy balance between comfort in net-zero energy buildings through building energy simulation using BIM tools. Their methodology depended firstly on reducing the energy demands through increasing the thermal resistance in walls and roofs by using high-performance glazing in windows.…”

Section: Introductionmentioning

confidence: 99%

Identifying Retrofitting Strategies for Access to Energy Efficient Building Design in Existing Buildings

Salah

Kayılı

2021

Period. Polytech. Arch.

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Reducing the energy needs of existing buildings has a significant place in reducing global energy demands. High energy savings can be achieved with passive renovation suggestions in existing buildings. In this study, the effect of the proposed renovations for an educational structure in Safranbolu on the heating and cooling demands of the building was determined with a simulation program. Energy improvements of up to 70 percent have been achieved through passive improvement designs in orientation and insulation material. The highest energy saving (69.31 %) was realized through a scenario of rearranging spaces from the north side to the south side where the number of users is relatively high and selecting a 20 cm aerogel thermal insulation material. While the heating and cooling load, in accordance with the definition of a zero-energy building, could not be reached in this scenario, the study showed the importance of holistic decisions taken in the design phase of the building with respect to energy-efficient building design.

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A Building energy simulation methodology to validate energy balance and comfort in zero energy buildings

Cited by 10 publications

References 34 publications

Dynamic Thermal Study of a Building Insulated with Local Biosource Materials and Analysis of Consumption

Dynamic Thermal Study of a Building Insulated with Local Biosource Materials and Analysis of Consumption

Low density hemp shive particleboards for latent thermal energy storage performance

Identifying Retrofitting Strategies for Access to Energy Efficient Building Design in Existing Buildings

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