Life cycle assessment of domestic hot water systems in Australia

2017 ◽  
Vol 103 ◽  
pp. 187-196 ◽  
Author(s):  
A.D. Moore ◽  
T. Urmee ◽  
P.A. Bahri ◽  
S. Rezvani ◽  
G.F. Baverstock
2016 ◽  
Vol 164 ◽  
pp. 944-955 ◽  
Author(s):  
Gabriele Comodi ◽  
Maurizio Bevilacqua ◽  
Flavio Caresana ◽  
Claudia Paciarotti ◽  
Leonardo Pelagalli ◽  
...  

2017 ◽  
Vol 2 ◽  
pp. 38 ◽  
Author(s):  
Andrew D. Moore ◽  
Tania Urmee ◽  
Martin Anda ◽  
Elaine Walker

2021 ◽  
Author(s):  
Guojian Wang

This study analyzed the carbon emissions for two-star green residential buildings in Beijing. During operation period, the carbon emissions were calculated for air-conditioning, heating, lighting, elevator, and domestic hot water systems. Furthermore, the carbon emissions for full life cycle are also given in this paper based on the statistical method of big data. The results show that the carbon emissions during operation and full life cycle periods were 17∼21 and 21∼27 kgCO2e/(m2·a), respectively. During operation period, the air-conditioning and heating systems accounted for 60%∼70% of the total carbon emissions, 26%∼30% and 4%∼9% for lighting and elevator systems, and the carbon emissions were lowest for domestic hot water systems.


2016 ◽  
Vol 21 (5) ◽  
pp. 1128-1138 ◽  
Author(s):  
Didier Beloin-Saint-Pierre ◽  
Annie Levasseur ◽  
Manuele Margni ◽  
Isabelle Blanc

2021 ◽  
Vol 11 (9) ◽  
pp. 3820
Author(s):  
Noelia Llantoy ◽  
Gabriel Zsembinszki ◽  
Valeria Palomba ◽  
Andrea Frazzica ◽  
Mattia Dallapiccola ◽  
...  

With the aim of contributing to achieving the decarbonization of the energy sector, the environmental impact of an innovative system to produce heating and domestic hot water for heating demand-dominated climates is assessed is evaluated. The evaluation is conducted using the life cycle assessment (LCA) methodology and the ReCiPe and IPCC GWP indicators for the manufacturing and operation stages, and comparing the system to a reference one. Results show that the innovative system has a lower overall impact than the reference one. Moreover, a parametric study to evaluate the impact of the refrigerant is carried out, showing that the impact of the overall systems is not affected if the amount of refrigerant or the impact of refrigerant is increased.


2021 ◽  
Vol 13 (9) ◽  
pp. 5322
Author(s):  
Gabriel Zsembinszki ◽  
Noelia Llantoy ◽  
Valeria Palomba ◽  
Andrea Frazzica ◽  
Mattia Dallapiccola ◽  
...  

The buildings sector is one of the least sustainable activities in the world, accounting for around 40% of the total global energy demand. With the aim to reduce the environmental impact of this sector, the use of renewable energy sources coupled with energy storage systems in buildings has been investigated in recent years. Innovative solutions for cooling, heating, and domestic hot water in buildings can contribute to the buildings’ decarbonization by achieving a reduction of building electrical consumption needed to keep comfortable conditions. However, the environmental impact of a new system is not only related to its electrical consumption from the grid, but also to the environmental load produced in the manufacturing and disposal stages of system components. This study investigates the environmental impact of an innovative system proposed for residential buildings in Mediterranean climate through a life cycle assessment. The results show that, due to the complexity of the system, the manufacturing and disposal stages have a high environmental impact, which is not compensated by the reduction of the impact during the operational stage. A parametric study was also performed to investigate the effect of the design of the storage system on the overall system impact.


Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4146
Author(s):  
Agnieszka Jachura ◽  
Robert Sekret

This paper presents an environmental impact assessment of the entire cycle of existence of the tube-vacuum solar collector prototype. The innovativeness of the solution involved using a phase change material as a heat-storing material, which was placed inside the collector’s tubes-vacuum. The PCM used in this study was paraffin. The system boundaries contained three phases: production, operation (use phase), and disposal. An ecological life cycle assessment was carried out using the SimaPro software. To compare the environmental impact of heat storage, the amount of heat generated for 15 years, starting from the beginning of a solar installation for preparing domestic hot water for a single-family residential building, was considered the functional unit. Assuming comparable production methods for individual elements of the ETC and waste management scenarios, the reduction in harmful effects on the environment by introducing a PCM that stores heat inside the ETC ranges from 17 to 24%. The performed analyses have also shown that the method itself of manufacturing the materials used for the construction of the solar collector and the choice of the scenario of the disposal of waste during decommissioning the solar collector all play an important role in its environmental assessment. With an increase in the application of the advanced technologies of materials manufacturing and an increase in the amount of waste subjected to recycling, the degree of the solar collector’s environmental impact decreased by 82% compared to its standard manufacture and disposal.


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