The environmental performance of a building-integrated solar thermal collector, based on multiple approaches and life-cycle impact assessment methodologies

Lamnatou, Chr.; Notton, Gilles; Chemisana, Daniel; Cristofari, Christian

doi:10.1016/j.buildenv.2015.01.011

Cited by 47 publications

(29 citation statements)

References 26 publications

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“…replacements over lifespan) among all the materials: i) aluminium components show the highest CED (total value: 9333 MJ prim for the collectors), ii) steel is responsible for the second highest CED (total value: 3498 MJ prim for the additional components and for the replacements), iii) PCM presents the third highest CED (total value: 3104 MJ prim for the collectors and for the replacements). Related with the above mentioned findings, it should be taken into account that by adopting recycling a considerable part of the impact of the metals can be avoided (Lamnatou et al, 2014(Lamnatou et al, , 2015d(Lamnatou et al, , 2015e, 2016…”

Section: ) By Focusing On Materials Manufacturing (Collectors; Additimentioning

confidence: 98%

“…3) There are few LCA studies about the environmental profile of active BIST systems which produce thermal energy for the building (Lenz et al, 2012;Lamnatou et al, 2014Lamnatou et al, , 2015dLamnatou et al, , 2015e, 2016. 4) There are few LCA studies about the environmental profile of solar thermal collectors with PCMs (Noël et al, 2015;Allred, 2014), it can be seen that there is a need for more investigations which examine BIST environmental issues (Lamnatou et al, 2015c), including heat storage/insulation options with PCMs.…”

Section: Gwp 20amentioning

confidence: 99%

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Cumulative energy demand and global warming potential of a building-integrated solar thermal system with/without phase change material

Lamnatou

Motte

Notton

et al. 2018

Journal of Environmental Management

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Building-integrated solar thermal (BIST) systems are a specific type of solar thermal systems which are integrated into the building and they participate in building functionality. The present article is about the life-cycle assessment of different options of a BIST system (Mediterranean climatic conditions: Ajaccio, France). The environmental profile of the studied configurations is assessed by means of CED (cumulative energy demand), GWP (global warming potential) and EPBT (energy payback time). The proposed configurations (for the collector) include: i) a system without PCM (phase change material) using only rock wool as insulation and ii) a system with PCM (myristic acid) and rock wool. Concerning life-cycle results based on CED and GWP 100a (scenario without recycling), the configuration without PCM shows 0.67 MJ/kWh and 0.06 kg CO/kWh while the configuration with PCM presents 0.74 MJ/kWh and 0.08 kg CO/kWh. Regarding EPBT, if the inputs for pumping/auxiliary heating are not taken into account, both configurations (with/without PCM) have almost the same EPBT (about 1.3 years). On the other hand, if the inputs for pumping/auxiliary heating are considered, EPBT is lower for the system with PCM. In addition, scenarios with recycling have been examined and the results demonstrate that recycling considerably improves the environmental profile of the studied configurations.

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Section: ) By Focusing On Materials Manufacturing (Collectors; Additimentioning

confidence: 98%

Section: Gwp 20amentioning

confidence: 99%

Cumulative energy demand and global warming potential of a building-integrated solar thermal system with/without phase change material

Lamnatou

Motte

Notton

et al. 2018

Journal of Environmental Management

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“…In summer, the solar useful hours exceed an average of 9 h a day, and cloudy days are few. The system is thus capable of contributing between 60% and 80% of the space cooling energy consumption, which usually allows the investment to be amortized in about 10 years [49]. Figure 5 shows the circuit diagram with the contributions of solar energy as a support system.…”

Section: Solar Energy Contributions To the Systemmentioning

confidence: 99%

Healthy Climate and Energy Savings: Using Thermal Ceramic Panels and Solar Thermal Panels in Mediterranean Housing Blocks

2018

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Radiant surface conditioning systems based on capillary tube mats not only provide high standards of comfort, but they also generate substantial energy savings. These systems allow for using renewable energies such as solar thermal panels because they function with water at moderate temperatures—lower in winter and higher in summer—compared to fan-coil systems or hot water radiator systems. Moreover, in summer, they can be combined with solar cooling systems based on lithium chloride or absorption systems based on lithium bromide, which enable the cooling of water at 15–16 °C by means of solar thermal panel energy collection. This further reduces the annual energy. The purpose of this study was to examine the application of thermal ceramic panels (TCP) containing prolipropylen (PPR) capillary tube mats, in residential buildings in the Spanish Mediterranean. The water distribution system was set up individually from a heat pump and was combined with a community system of solar thermal panels. After monitoring a home over a complete one-year cycle, the annual energy demand was quantified through simulations, based on both the radiant system and the VRV system, as well as in combination with a thermal solar panel system. TCP panels reduced the annual energy demands by 31.48%, and the additional investment cost of €11,497 could be amortized over 23.31 years. The combination of TCP panels with 18.5 m2 of solar thermal panels reduced the annual energy demand by 69.47%, and the investment of €20,534 of additional cost could be amortized over 15.67 years. The energy consumptions of installation elements were also comparatively quantified.

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“…The same emission power is achieved in the other systems and with similar operating temperature. As we will see, this difference generates substantial energy savings, and allows using alternative energies, such as solar [17,18], aerothermal or geothermal [19,20].…”

Section: Comparison Of Operating Temperatures T Omentioning

confidence: 99%

Underfloor Heating Using Ceramic Thermal Panels and Solar Thermal Panels in Public Buildings in the Mediterranean: Energy Savings and Healthy Indoor Environment

2019

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Radiant floor air conditioning systems based on capillary tube mats, in addition to offering high comfort standards, generate significant energy savings. They allow the use of renewable energies such as thermal solar panels and combine them with solar cooling systems based on lithium chloride or absorption systems with lithium bromide in summer, cooling water down to 15–16 °C through solar thermal panel energy collection. Thus, in addition to energy savings from the transport of low water flows, annual energy demand is also reduced. This research analyses the application of thermal ceramic panels (TCP)—containing polypropylene (PPR) tube capillary mats—to public buildings in the Spanish Mediterranean. A case study of the Museum of the University of Alicante (MUA) is presented. Water was distributed individually from a split system heat pump inside the building combined with a thermal solar panel system on the roof. The MUA’s annual energy demand was quantified using thermal simulation tools and was monitored during the entire one-year cycle. Simulations were conducted both for the radiant floor system and an all-air conventional convective system, as well as with solar thermal panel applications. The reduction in annual energy demand was 24.91% when TCP panels are used on the floor. This is a considerable value, but lower than others results obtained in Central Europe due to the higher values of humidity. When solar thermal panels are installed on the rooftop the energy savings can increase to 60.70%.

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The environmental performance of a building-integrated solar thermal collector, based on multiple approaches and life-cycle impact assessment methodologies

Cited by 47 publications

References 26 publications

Cumulative energy demand and global warming potential of a building-integrated solar thermal system with/without phase change material

Cumulative energy demand and global warming potential of a building-integrated solar thermal system with/without phase change material

Healthy Climate and Energy Savings: Using Thermal Ceramic Panels and Solar Thermal Panels in Mediterranean Housing Blocks

Underfloor Heating Using Ceramic Thermal Panels and Solar Thermal Panels in Public Buildings in the Mediterranean: Energy Savings and Healthy Indoor Environment

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