Forecasting the performance of a district solar thermal smart network in desert climate – A case study

Hmadi, Mohamed; Mourtada, Adel; Daou, Rémi

doi:10.1016/j.enconman.2020.112521

Cited by 11 publications

(4 citation statements)

References 45 publications

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“…As for the validation of the simulation results [19], this was modelled on a villa in Riyadh following the same envelope characteristics as the Saudi Arabia thermal standard. The cooling load per unit area is 82.5 W/m 2 , whereas it is 85 W/m 2 as per the present model.…”

Section: Building Energy Analysismentioning

confidence: 99%

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Evaluation and Design of Large-Scale Solar Adsorption Cooling Systems Based on Energetic, Economic and Environmental Performance

Bawazir

Friedrich

2022

Energies

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In hot and dry regions such as the Gulf Cooperation Council (GCC) countries, the cooling demand is often responsible for more than 70% of electricity consumption, which places a massive strain on the electricity grid and leads to significant emissions. Solar thermal driven Silica-Gel/Water adsorption chillers, used for space cooling, could provide low carbon emission cooling and reduce the reliance on grid electricity. However, a meticulous design is required to make this both economically and environmentally beneficial. This paper aims to evaluate the solar thermal adsorption chiller performance based on large-scale cooling demand through a TRNSYS simulation for 1 year of operation. The proposed system consists of two main parts: first, the solar loop with evacuated tube solar collectors; and second, the adsorption cooling system with a silica-gel/water adsorption chiller. A neighbourhood of 80 typical 197 m2 villas in Riyadh, the capital city of the Kingdom of Saudi Arabia (KSA), was taken as a case study. The solar adsorption cycle’s performance has been compared to the conventional vapour compression cycle in terms of energy, economic and environmental performance. In addition, a parametric study has been performed for the main design parameters. Results reveal that the system can reach a solar fraction of 96% with solar collector area of 5500 m2 and a storage tank volume between 350 and 400 m3. Furthermore, the annual energy cost can be reduced by 74% for the solar adsorption system compared to the conventional vapour compression cycle. Meanwhile, the CO2 saving percentage for the solar adsorption cycle was approximately 75% compared to the conventional vapour compression cycle. Carefully designed solar thermal cooling systems can reduce greenhouse gas emissions while covering a large scale of cooling demands. This can reduce the strain on the electricity grid as well as greenhouse gas emissions.

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Section: Building Energy Analysismentioning

confidence: 99%

“…In conjunction with its high solar irradiation, Saudi Arabia's new strategy focuses on renewable solar technology to meet the significant growth of rising annual electricity demand. Furthermore, residential complexes account for 15% of total electricity use [19].…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Design of Large-Scale Solar Adsorption Cooling Systems Based on Energetic, Economic and Environmental Performance

Bawazir

Friedrich

2022

Energies

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“…), and (ii) Coefficient of Variation (𝐶.𝑉), and they are estimated as shown in the Eqs. (10) to (12):…”

Section: Ann Model Convergence Criteriamentioning

confidence: 99%

“…Different technologies can be combined with DH systems to improve efficiency and energy savings [12]. The large-scale solar thermal district heating plants are among the most interesting solutions that have already become a reality today in countries like Denmark, Sweden, Austria, Germany, Spain, and Greece [13], [14].…”

Section: Introductionmentioning

confidence: 99%

Flexible heat pump integration to improve sustainable transition toward 4th generation district heating

Abokersh

Saikia

Cabeza

et al. 2020

Energy Conversion and Management

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Technical assessment of 10 MW solar thermal plant using nano-fluids and molten salts: a case study of Saudi Arabia

et al. 2022

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Forecasting the performance of a district solar thermal smart network in desert climate – A case study

Cited by 11 publications

References 45 publications

Evaluation and Design of Large-Scale Solar Adsorption Cooling Systems Based on Energetic, Economic and Environmental Performance

Evaluation and Design of Large-Scale Solar Adsorption Cooling Systems Based on Energetic, Economic and Environmental Performance

Flexible heat pump integration to improve sustainable transition toward 4th generation district heating

Technical assessment of 10 MW solar thermal plant using nano-fluids and molten salts: a case study of Saudi Arabia

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