Environmental assessment of domestic solar hot water systems: a case study in residential and hotel buildings

Zambrana-Vásquez, David; Aranda‐Usón, Alfonso; Zabalza-Bribián, Ignacio; Jañez, Alberto; Llera‐Sastresa, Eva; Hernández, Patxi; Arrizabalaga, Eneko

doi:10.1016/j.jclepro.2014.06.035

Cited by 48 publications

(7 citation statements)

References 34 publications

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“…Water, Ethylene glycol, acetone or a combination of water and ethylene glycol can be used as the working fluid Eastman 1995, Prasher, Bhattacharya et al 2005), but the thermal conductivity of these fluids is low. Flat plate solar collectors are mainly used in domestic hot water system (Zambrana-Vasquez, Aranda-Usón et al 2015). Therefore, improving the performance of this type of solar collector is extremely crucial.…”

Section: Introductionmentioning

confidence: 99%

Energy and exergy efficiency of a flat plate solar collector using pH treated Al2O3 nanofluid

Said

Saidur

Sabiha

et al. 2016

Journal of Cleaner Production

132

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Section: Introductionmentioning

confidence: 99%

Energy and exergy efficiency of a flat plate solar collector using pH treated Al2O3 nanofluid

Said

Saidur

Sabiha

et al. 2016

Journal of Cleaner Production

132

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“…Alternative water heating solutions, SWH and heat pump devices, are the alternative to the environmental effects of fossil-based fuel usage that has become a current issue. SWH and the heat pump have been able to greatly decrease greenhouse gas emissions of CO 2 [16]. Li et al [17] found that a 1 m 2 SWH collector region would decrease approximately 200 kg of CO 2 emissions or it will save 67-70 percent of CO 2 emissions relative to a traditional device.…”

Section: Alternative Heating Solutionsmentioning

confidence: 99%

Alternative Water Heating Technologies Replaced Instantaneous Water Heater in Hotel Sector – a SWOT-AHP Analysis

Jingjit¹,

Amin²,

Techato³

2021

TEM Journal

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In pursue of energy-efficient alternative water heating options, a SWOT-AHP analysis was accomplished for Solar Water Heater (SWH) and Heat Pumps (HP) against instantaneous water heaters (IWH). The results show that the energy consumption and bills saving are dominant in strength of both HP and SWH. Financial and technological aspects seem to play a relatively significant role. Additionally, HP and SWH are more convenient for the energy consumption in water heating technology in hotel sector of Thailand. Finally, we can say that HP and SWH are more convenient for water heating system as compare to IWH.

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“…Shen [19] proposed methods on the integration of building design and BWSWHS, but the same deficiency existed as that of the former study. Zambrana-Vasquez et al [20] calculated the life-cycle carbon emission of BWSWHS but ignored the economic analysis for each user. Fertahi et al [21] attempted to optimize the thermal performance of BWSWHS but omitted the annual thermal performance.…”

Section: State Of the Artmentioning

confidence: 99%

Feasibility of Balcony Wall-Mounted Solar Water Heating System in High-Rise Residential Buildings

Zhou¹,

He²,

Jia³

et al. 2019

JESTR

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The application of a solar water heating system is severely restricted by the limited roof area of high-rise buildings in urban areas. Therefore, the installation of a balcony wall-mounted solar water heating system (BWSWHS) on the facades of buildings has become an alternative solution. Annual conventional energy consumption and dynamic cost of three types of water heating systems were compared to prove the technical and economic feasibility of the BWSWHSs. First, the field measurement of the BWSWHS was conducted. Then, according to the principle of maximizing sunshine duration, the azimuth angle (AZ) of the building, suitable facade for installation, and optimal inclination angle of the collector were determined through sunshine simulation. Next, the annual heat gain and conventional energy consumption of the BWSWHSs were obtained from simulation using a verified model. Finally, annual energy consumption and dynamic cost of three types of water heating systems, namely, BWSWHS, electric and natural gas water heating systems, were compared. Results show that the optimal AZ of the building is 30° south by east, the suitable façade for installation is south, and the optimal inclination angle of the collector is 70°. In this case, the thermal efficiency of the collector is 44% and the solar fraction is 41%. Annual conventional energy consumption and dynamic cost are lower than that of the two other systems. The present study provides a basis for the promotion of the BWSWHS in residential high-rise buildings.

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Environmental assessment of domestic solar hot water systems: a case study in residential and hotel buildings

Cited by 48 publications

References 34 publications

Energy and exergy efficiency of a flat plate solar collector using pH treated Al2O3 nanofluid

Energy and exergy efficiency of a flat plate solar collector using pH treated Al2O3 nanofluid

Alternative Water Heating Technologies Replaced Instantaneous Water Heater in Hotel Sector – a SWOT-AHP Analysis

Feasibility of Balcony Wall-Mounted Solar Water Heating System in High-Rise Residential Buildings

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