Numerical simulation and experimental validation of an outdoor-swimming-pool solar heating system in warm climates

Lugo, S.; Morales, L.I.; Best, R.; Gómez, V.H.; Garcı́a-Valladares, O.

doi:10.1016/j.solener.2019.07.041

Cited by 25 publications

(15 citation statements)

References 24 publications

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“…The performance simulation of the collector can be realized by selecting the structure and setting the parameters.Fig. 2 shows the heat transfer and thermal resistance model of aluminum tube.TRNSYS software is used to analyze the performance of the aluminum tube collector, and the total heat collection is： Qhtf=Qs+Qa-Ql (1) where Qhtf represents the total heat of the collector (in W); Qs represents the total solar radiation energy received by the collector(in W); Qa represents the air energy absorption of the collector(in W).Ql represents the surface optical loss of the collector(in W).…”

Section: Figure 1 Schematic Diagram Of Aluminum Tube Collector 1 Aluminum Tube；2 Fixing Frame；3 Bracketmentioning

confidence: 99%

“…Under the dual pressure of energy transition and environmental pollution,comprehensive utilization of renewable energy is the direction for the development of a diversified clean energy system [1][2].As the main of renewable energy,solar energy has been widely used in light-electricity, light-heat, photochemical and so on. In recent years, the use of solar heat pumps for heating has become a popular research topic in the field of solar thermal utilization.Solar energy heat pump heating technology uses solar energy as the low temperature heat source of heat pump system to realize building heating [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

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Heating Performance of Solar Heat Pump Heating System With Aluminum Tube Collector

Yang

Jiang

et al. 2021

IEEE Access

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A solar heat pump heating system with an aluminum tubular collector is proposed in this paper. Mathematical models are established for solar energy absorption and air energy absorption of the aluminum tubular collector, as well as the heat-absorption coefficient of the working substance. The electronic expansion valve is controlled via the fuzzy PID method to adjust the working substance flow rate, as well as to control the evaporator overheating and set the indoor heating temperature. TRNSYS is used to analyze the effects of the wind speed, solar radiation amount, environment temperature, and working substance flow rate on the heat transfer performance of the aluminum tubular collector. The results indicate that the heat transfer performance of the aluminum tubular collector is significantly affected not only by the solar radiation but also the wind speed. For wind speed > 2 m/s, the absorbed power of the collector increases rapidly with an increase in the wind speed; when the working-medium flow rate reaches 4 m/s, the collector absorption power tends to be saturated. Subsequently, an experimental heating system with a heating area of 170 m 2 is constructed. Experiments revealed that the maximum coefficient of performance (COP) of the heating system is 4.46, and the average COP value is 3.95, indicating good heating effect.INDEX TERMS Aluminum tube collector, coefficient of performance, heating system , heating transfer property, solar heat pump.

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Section: Figure 1 Schematic Diagram Of Aluminum Tube Collector 1 Aluminum Tube；2 Fixing Frame；3 Bracketmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heating Performance of Solar Heat Pump Heating System With Aluminum Tube Collector

Yang

Jiang

et al. 2021

IEEE Access

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“…where T sky is the effective sky temperature (Walton (1983)). For the unheated pools used in this study, the only energy gain is through solar heating so that for an uncovered pool Q gain = Q sol where the solar energy directly absorbed by the water and the floor and sidewalls of the pool (Hahne and Kübler (1994); Ruiz and Martínez (2010); Woolley et al (2011); Buonomano et al (2015); Lugo et al (2019)). This solar energy gain is proportional to this total absorptance of the pool and solar irradiance such that…”

Section: Cover Solar Heating Efficiency Modelmentioning

confidence: 99%

Selective light transmission as a leading innovation for solar swimming pool covers

Waché

Fielder²,

Dickinson

et al. 2020

Solar Energy

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“…Furthermore, the cost of fossil fuels has increased considerably in the last years. These factors shown the importance of investigating possible ways of using renewable energy technologies which combine the requirement of reducing costs and CO2 emissions into the atmosphere [2], achieving the objectives proposed by the European Union for a more efficient energy use. Several projects have been funded by the EU dealing with energy efficiency and the use of renewable energy sources in sport centres [3,4].…”

Section: Introductionmentioning

confidence: 99%

A Methodology of Energy Optimization in Indoor Swimming Pool

Natali¹,

Bottarelli²,

Fausti³

2020

IJES

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Swimming pools require a large amount of energy to provide comfort for the swimmers, therefore, energy saving actions must be studied in order to optimise their efficiency even when the existing systems are already of high performance. The case study relies on a public indoor swimming pool, in which dynamic simulations were developed by using TRNSYS software. Experimental measurement campaign was also performed in order to investigate the system operation to calibrate the numerical model by using the real data. Starting from the virtual model of the pool centre different energy efficiency actions have been analysed in the interest of find achievable energy savings. The first action is related to a new management of the pool centre and involves the reduction of evaporation losses from the water pool surface; the other action proposes to increase the heating supply coming from renewable source. The results of the analysis outline that both proposed solutions permit a reduction of total heat needs and therefore of the amount of primary energy. This permits to carry out replicable analyses by adapting the studied plant system to different operating swimming centres systems, investigating their efficiencies and identifying solutions for energy saving actions.

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Numerical simulation and experimental validation of an outdoor-swimming-pool solar heating system in warm climates

Cited by 25 publications

References 24 publications

Heating Performance of Solar Heat Pump Heating System With Aluminum Tube Collector

Heating Performance of Solar Heat Pump Heating System With Aluminum Tube Collector

Selective light transmission as a leading innovation for solar swimming pool covers

A Methodology of Energy Optimization in Indoor Swimming Pool

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