Energy efficiency and thermal behaviour of attached sunspaces, in the residential architecture in Spain. Summer Conditions

Monge-Barrio, Aurora; Gutiérrez, Ana Sánchez-Ostiz

doi:10.1016/j.enbuild.2015.09.037

Cited by 51 publications

(27 citation statements)

References 8 publications

(10 reference statements)

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“…Consumption due to dehumidification, with two fan coils, is 4.86 MWh/year in the radiant system, but this disadvantage is counterbalanced by significantly reduced energy consumption of the heat pump in the cooling system (43.8% lower) and in the heating system (36.3% lower). CO 2 emissions have been quantified in the electric mix using the ELCD database, according to which, for the production of 1 electric kWh, 0.41 kgCO 2 , 0.00122 kgCH 4 and 0.0000465 kgN 2 O are emitted [42,43]. Subsequently, final energy consumption was quantified for the user.…”

Section: Calculating the House's Energy Demandmentioning

confidence: 99%

Thermal Ceramic Panels and Passive Systems in Mediterranean Housing: Energy Savings and Environmental Impacts

Echarri

2017

Sustainability

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This research examines the benefits of designing a living space in a basement, as a method of passive temperature control in summer, combined with thermal ceramic panels (TCP) on some walls. These panels incorporate a capillary system of polypropylene tubes which work with cold water. We studied a detached house on the coast of Alicante, where the moderate temperature of the ground tempered interior conditions of comfort using the flow of air from the basement, significantly reducing energy demand and environmental impacts. This reduction was quantified through simulations using the Design Builder tool, having previously monitored the state of the building, on scenarios of a house without a basement, a house with a basement and an all-air system, and a house with a basement and radiant surfaces, using TCP panels on walls. This latter passive system led to a 10.25% reduction in annual energy demand. When we combined it with the two possible air conditioning systems, comfort achieved using the TCP panel system improved by 45.8% compared to the all air system in the living room on the ground floor and by 17% in the basement living room. In addition, annual energy demand and environmental impacts deriving from the use of the installation decreased by 31.8% with the TCP system.

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Section: Calculating the House's Energy Demandmentioning

confidence: 99%

Thermal Ceramic Panels and Passive Systems in Mediterranean Housing: Energy Savings and Environmental Impacts

Echarri

2017

Sustainability

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“…Besides, there have been several parametric studies in which real sunspaces located in different cities were analysed by means of different dynamic simulation softwares including DEROB-LTH, TRNSYS, ESP-r and DOE-2 [20][21][22][23]. A recent tendency is to study the thermal performance of real attached sunspaces by using whole-building dynamic simulation tools (EnergyPlus, IDA-ICE) [24][25][26]. Also, some of them evaluate not only the energy efficiency of these passive solar solutions but the potential energy savings as a function of different configurations [25,27].…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of an Attached Sunspace with a Thermal Inertia Floor

et al. 2018

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An attached sunspace is a partially or fully glazed enclosure, usually located on the first floor, facing south (in the Northern Hemisphere) and adjacent to a conditioned room. Because of the length and orientation of the glazed area, the temperature in the sunspace is usually higher than outside the building. As a Trombe–Mitchel wall, the sunspace has a considerable mass that accumulates thermal energy, but in this case the thermal mass is located in the floor. This capacity to accumulate thermal energy confers the attached sunspace features beyond passive insulation. The sunspace studied in this paper is part of an experimental building located in the North of Spain that was built in the frame of the so-called ARFRISOL project. It consists of a south-facing glazed exterior wall with both clear glass and semi-transparent photovoltaic panels, an intermediate space with a thick layer of sand over a concrete floor, and a partially glazed interior wall. In this paper, a three-dimensional computational model has been implemented to analyse the thermal behaviour inside the sunspace. This analysis takes into account, among other factors, the effects of sun position, incident solar irradiation and temperature both inside and outside.

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“…The heat transfer process of multi-space solar buildings is more complicated than that of single-space buildings. It was indicated that the external boundary thermal conditions varied with the orientation, and an open thermodynamic system which had energy exchanges with the outer surroundings and adjacent spaces in multi-space buildings [29,30]. In other words, in the multi-space solar building, there existed simultaneously diversified indoor and outdoor thermal boundary conditions, and heat transfer between the indoor and outdoor, and between adjacent indoor spaces.…”

Section: Introductionmentioning

confidence: 99%

Coupling Effect of Space-Arrangement and Wall Thermal Resistance on Indoor Thermal Environment of Passive Solar Single-Family Building in Tibet

et al. 2019

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In areas where solar energy is abundant, such as the Tibetan plateau, passive solar buildings are attracting more and more attention and becoming a popular form of rural building. However, it is often difficult to achieve the satisfactory indoor thermal environment in a local rural passive solar single-family house. In order to improve the indoor thermal environment of passive solar buildings through building design, a systematic study of rural single-family buildings in Tibet was conducted. The basic parameters were investigated on the outdoor thermal environment, space-arrangement, envelope structure, and the indoor thermal environment. The building model considering space-arrangement modes was developed based on the survey data in multi-space passive solar buildings. The general physical and mathematical analysis models of multi-space passive solar buildings were established based on the heat transfer theory. Furthermore, the effects of space-arrangement and exterior wall thermal resistance on indoor air temperature were analyzed by numerical simulation. Results show that the indoor air temperature of the passive solar building is influenced by space-arrangement and wall thermal resistance together. When the space-arrangement of the building model was changed from "north-south through type" (mode a) to "through and separation combination" (mode b) and "north-south separation" (mode c), the indoor air temperature of the living room increased from 8.8 • C to 10.6 • C and 11.6 • C, with increases of 20.5% and 31.8%, respectively. In addition, equally increasing the thermal resistance of exterior walls in different orientations has different effects on the indoor air temperature. In the space-arrangement mode c, comparing with the temperature increment of the living room and bedroom caused by increasing thermal resistance of the south wall and north wall, the temperature increment of the living room caused by increasing thermal resistance of the east/west wall increased by 151.7% and 32.7%, and that of the bedroom increased by 609.1% and 239.1% respectively. This study can provide a reference for the optimal design of passive solar buildings in solar energy abundant areas.

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Energy efficiency and thermal behaviour of attached sunspaces, in the residential architecture in Spain. Summer Conditions

Cited by 51 publications

References 8 publications

Thermal Ceramic Panels and Passive Systems in Mediterranean Housing: Energy Savings and Environmental Impacts

Thermal Ceramic Panels and Passive Systems in Mediterranean Housing: Energy Savings and Environmental Impacts

Analysis of an Attached Sunspace with a Thermal Inertia Floor

Coupling Effect of Space-Arrangement and Wall Thermal Resistance on Indoor Thermal Environment of Passive Solar Single-Family Building in Tibet

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