Envelope Design Optimization by Thermal Modelling of a Building in a Warm Climate

Baglivo, Cristina; Congedo, Paolo Maria; Cataldo, Matteo Di; Coluccia, Luigi; D’Agostino, Delia

doi:10.3390/en10111808

Cited by 39 publications

(31 citation statements)

References 53 publications

(41 reference statements)

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“…In order to identify the optimal shape and structure of the building envelopes complex energy and cost simulation should be conducted. Baglivo et al presented in their study the interrelation between operative temperature and configuration of the buildings' envelope in warm climates [9]. Utilization of renewable energy sources may further contribute to the reduction of fossil fuel use in the building sector.…”

Section: Energy Use Of Buildingsmentioning

confidence: 99%

Investigation of Thermal Comfort Responses with Fuzzy Logic

Menyhárt

Kalmár

2019

Energies

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In order to reduce the energy consumption of buildings a series of new heating, ventilation and air conditioning strategies, methods, and equipment are developed. The architectural trends show that office and educational buildings have large glazed areas, so the thermal comfort is influenced both by internal and external factors and discomfort parameters may affect the overall thermal sensation of occupants. Different studies have shown that the predictive mean vote (PMV)—predictive percentage of dissatisfied (PPD) model poorly evaluates the thermal comfort in real buildings. At the University of Debrecen a new personalized ventilation system (ALTAIR) was developed. A series of measurements were carried out in order to test ALTAIR involving 40 subjects, out of which 20 female (10 young and 10 elderly) and 20 male (10 young and 10 elderly) persons. Based on the responses of subjects related to indoor environment quality, a new comfort index was determined using fuzzy logic. Taking into consideration the responses related to thermal comfort sensation and perception of odor intensity a new the fuzzy comfort index was 5.85 on a scale from 1–10.

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Section: Energy Use Of Buildingsmentioning

confidence: 99%

Investigation of Thermal Comfort Responses with Fuzzy Logic

Menyhárt

Kalmár

2019

Energies

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“…The configuration 6 of Table 10 demonstrates that it possible to have a high performance also with the lowest total surface mass among the analyzed combinations. As shown by the analysis of the operative temperature [59], it is not strictly necessary to obtain low transmittance values in warm climates. Therefore, the U value is preferable to be as high as possible and close to the law limit.…”

Section: Slab-on-ground Floor With Gravelmentioning

confidence: 99%

Multi-Objective Analysis for the Optimization of a High Performance Slab-on- Ground Floor in a Warm Climate

2018

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The building sector is responsible for a large part of the overall energy demand in Europe. Energy consumption may be reduced at the design stage by selecting the proper building elements. This study develops a multi-objective analysis for a highly efficient slab-on-ground floor, whose design is optimized for a warm climate. Possible floor configurations have been obtained using the software tools modeFRONTIER, for the multi-objective analysis, and MATLAB, for the computational code. To proceed with the optimization of the different floor layers, a dataset has been developed for several materials in relation to a number of parameters: thermo-physical properties, eco-sustainability score according to the ITACA Protocol, costs, source, and structural features. Results highlight how a high surface mass is preferable when guaranteed by concrete in the innermost and outermost layers. Furthermore, insulating materials are better placed in the middle layers, with the insulating and synthetic materials adjacent to the ground and insulating and natural materials adjacent to the floor. Results emphasize the importance of thermal transmittance close to the Italian regulation limit (0.38 W/m2 K) in the climatic zone C, to allow an adequate exchange with the ground in summer, avoiding overheating. The outcomes show that the obtained slab-on-ground floor configurations favor the use of local, recyclable, sustainable, and eco-friendly materials, which is in line with energy policies and sustainability protocols. The paper supports the decision making process that takes many variables into account at the building design stage.

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“…It is well known that the identification of the optimal configuration of building components can significantly reduce the excessive energy consumption in buildings [2]. For this reason, several studies have examined the implementation of new methodologies to guarantee high-energy performance in the buildings [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Light Pipes for the Optimal Disposition in Buildings

2019

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A light pipe is an excellent solution to transport and distribute daylight into environments without or with little lighting, guaranteeing comfort inside the rooms. As stated in the literature, the evaluation of the performances of light pipes presents numerous complexities, making the work very difficult for technicians and designers. This study is aimed to present a methodology that is able to identify the potential of light pipes using indices such as daylight autonomy (DA), continuous daylight autonomy (DAc), and useful daylight illuminance (UDI). This paper presents an analysis of daylight obtained by several configurations of simple models of light pipes installed into a 5 × 5 m plant area room. All simulations are carried out in a DAYSIM environment, which allows calculating the annual availability of daylight based on a RADIANCE raytracer backward. Several daylight conditions were analyzed for different light pipe configurations, considering different pipe lengths and a variable number of light pipes. The light pipes are tested also in the horizontal position, for different orientations. The results of all the combinations were compared with the performances of a window with dimensions equal to 1/8 of the internal surface, which was in accordance with the minimum value to be guaranteed by the Italian Regulation (D.M. 5 July 1975 n. 190) for different orientations. The results indicated a difference in daylight distribution, showing a strong correlation between the percentage levels of DA and DAc with the length and number of pipes, during different periods of the year. The simulated model is strongly influenced by the aspect ratio (R = diameter/length). The results show that the illuminance levels decrease drastically, increasing the length.

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Envelope Design Optimization by Thermal Modelling of a Building in a Warm Climate

Cited by 39 publications

References 53 publications

Investigation of Thermal Comfort Responses with Fuzzy Logic

Investigation of Thermal Comfort Responses with Fuzzy Logic

Multi-Objective Analysis for the Optimization of a High Performance Slab-on- Ground Floor in a Warm Climate

Modeling of Light Pipes for the Optimal Disposition in Buildings

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