Energy, exergy, and economic analysis of a solar photovoltaic and photothermal hybrid energy supply system for residential buildings

Chen, Yaowen; Quan, Mengchen; Wang, Dengjia; Tian, Zhijun; Zhuang, Zhaoben; Liu, Yanfeng; He, Erhu

doi:10.1016/j.buildenv.2023.110654

Cited by 17 publications

(1 citation statement)

References 51 publications

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“…It is located in Valencia, on the Mediterranean coast. It is coded in the Spanish regulation [32] as B3, with B corresponding to the winter climate severity (coded A-E) and 3 to the summer climate severity (coded [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. This climate can also be coded as Csa according to the Köppen-Geiger classification.…”

Section: Definition Of the Required Flowsmentioning

confidence: 99%

Renewable Energy Source (RES)-Based Polygeneration Systems for Multi-Family Houses

Uche,

Martínez-Gracia,

Zabalza

et al. 2024

Sustainability

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This research work synthetizes the energy, economic, and environmental aspects of a novel configurational analysis of four polygeneration schemes designed to fulfill the demands of a multi-family building that includes 12 dwellings. The design aims to meet the requirements (water, electricity, heat and cold air) from Renewable Energy Sources (RESs), in particular by selecting photovoltaic and photovoltaic-thermal panels, thermoelectric generators, and biomass as auxiliaries. Electricity is available from the grid, and no electrical storage is planned. Water and cooling may be produced by alternative technologies that configure the polygeneration alternatives. The case study is in Valencia, a coastal Mediterranean city in Spain. The Design Builder Clima estimated demand calculations, and the system performance was modeled in TRNSYS. Desalination was linked by using EES models. Results show that the suggested schemes offer substantial energy and CO2 savings. The innovative life-cycle analysis applied further enhances the cumulative CO2 savings across the four configurations if the impact of the installations is compared with the conventional external supply. The electric option (combining heat pump and reverse osmosis for cooling and desalination) emerged as the most appealing solution due to its reliability, lower investment cost, and environmental impact.

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Section: Definition Of the Required Flowsmentioning

confidence: 99%

Renewable Energy Source (RES)-Based Polygeneration Systems for Multi-Family Houses

Uche,

Martínez-Gracia,

Zabalza

et al. 2024

Sustainability

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Exergetic analysis of a domestic refrigerator with an innovative mini-channel flat tube condenser

Ozturk,

Doğan,

Tosun

et al. 2024

J Therm Anal Calorim

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In this study, the energetic and exergetic performance of a household refrigerator with a unique compact heat exchanger composed of a mini-channel flat tube condenser and offset strip fins (OSF) is investigated experimentally by considering varying amounts of R600a (48–64 g) and capillary tube lengths (2800, 3300, and 3800 mm). The experiments have been performed for two refrigerators involving two different innovative condensers composed of mini-channel flat tube and offset strip fins which have varying orientations instead of conventional wire-on-tube condensers. The experiments were conducted in a climatic chamber at a temperature of 25 ± 0.5°C. According to the standard of IEC 62552:2015, the target temperatures of the fresh food and freezer compartments are set at 4°C and −18°C, respectively. Specific and relative exergy destructions of each component, total exergy destruction, the coefficient of performance, and second-law efficiency of the overall system with two different mini-channel condensers are reported for varying amounts of refrigerant and capillary tube lengths. The major concern of the investigation is to reveal the key components contributing to the degradation of the overall performance of the unique design. It is observed that the evaporator, which has a ratio of 52–69% in total exergy destruction within all investigated cases, is the most exergy destructive component and the exergy destruction of the evaporator decreases when the amount of R600a increases. The mini-channel condensers are the second exergy destructive components with a ratio of 19–22%. As an important outcome of this unique design’s investigation, exergy destruction of the condenser and compressor does not show a monotonic change with respect to the refrigerant amount and capillary length. Besides, the highest coefficient of performance and second-law efficiency are obtained when the amount of R600a is 48–50 g in all three capillary tube lengths.

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Thermal performance and energy flow analysis of a PV/T coupled ground source heat pump system

Li,

Wang,

et al. 2024

Applied Thermal Engineering

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Energy, exergy, and economic analysis of a solar photovoltaic and photothermal hybrid energy supply system for residential buildings

Cited by 17 publications

References 51 publications

Renewable Energy Source (RES)-Based Polygeneration Systems for Multi-Family Houses

Renewable Energy Source (RES)-Based Polygeneration Systems for Multi-Family Houses

Exergetic analysis of a domestic refrigerator with an innovative mini-channel flat tube condenser

Thermal performance and energy flow analysis of a PV/T coupled ground source heat pump system

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