Dynamic Simulation of Outdoor Swimming Pool Solar Heating

Dongellini, Matteo; Falcioni, Stefania; Martelli, Andrea; Morini, Gian Luca

doi:10.1016/j.egypro.2015.12.053

Cited by 20 publications

(7 citation statements)

References 8 publications

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“…The heat flow rate to the ground is negligible for this assessment. The other heat flow rates are calculated in detail using the equation available in the technical literature [18][19][20][21][22][23].…”

Section: Pool Trnsys Modelmentioning

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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Section: Pool Trnsys Modelmentioning

confidence: 99%

A Methodology of Energy Optimization in Indoor Swimming Pool

Natali¹,

Bottarelli²,

Fausti³

2020

IJES

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“…This type of collectors had been intensively studied. Their common use is for swimming pool water heat if their fluid is liquid [1], or solar dryers if their fluid is air [2]. When these collectors are put under a transparent glazing such as plastic or glass, their heating capacity increases due to the additional greenhouse effect [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of a Stationary Hot Air Solar Collector Built with Hemispherical Concentrators and Enhanced with Fresnel Lenses

Ouédraogo

Ousmane

et al. 2021

PSIJ

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Aims: This paper is about a solar collector made of hemispherical concentrators. This collector is sun tracking free, and used for natural convection. Lenses are used on top of each concentrator to improve its efficiency. Study Design: The Solar collector is made of hemispherical concentrators with Fresnel lenses axially-centered to those concentrators and placed on top of each one of them. Those concentrators are covered with a 4 mm glass for a greenhouse effect. The concentrators generate hot spots that heat the inside air. There is no need for receivers at the hot spots. Methodology: from Inlet to outlet, temperatures are measured as well as inlet air speed, which allow the efficiency evaluation. Results: Although those measurements were conducted in a cloudy period, temperature difference from the inlet to the outlet was around 55°C to 65°C. This result is superior to previous studies of the same system without lenses which gave temperature difference around 35°C to 45°C. It is sharply superior to that of usual black-painted convective system with fined plates that gives a temperature difference of around 20°C to 25°C. Conclusion and Perspectives: The global efficiency calculated using measurement values reaches 56%. This is far greater compared to previous black plate systems’ efficiency of 29%, giving an efficiency increase of 93%, but expected knowing that we are using a concentration system for convection.

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“…The simple payback period was about 14 years without incentives. Dongellini et al [5] introduced a dynamic model to simulate the solar heating system which consists of horizontal flat solar collectors used to heat an outdoor swimming pool. The model was developed using MATLAB environment to simulate the model using three types of solar collectors: an evacuated collector, a single glazed collector and an unglazed collector applied to three types of swimming pools of different size: paddling pool with dimentions (length=10m, width=4m and depth=0.5m), public swimming pool with dimentions (length=15m, width=6m and depth=1.5m) and third type represents a pool dedicated to competitive sport activities with dimentions (length=25m, width10m and depth=2m).…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Prediction of Indoor Swimming Pool Solar Heating System Using Different Types of Flat-Plate Solar Collectors

haddy¹,

Hassen²

2021

JAARU

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The current study includes a theoretical study of the enfluence of different types of flat-plate solar collector on the solar fraction factor (ƒ) of a proposed solar heating system used for heating "alShaab Olympic Indoor Swimming Pool" located in Baghdad (Iraq) at a latitude of 33.32˚N. The swimming pool building has external dimensions of 95 m length, 51 m width, and 16.5 m height, it contains two pools, the first is for swimming with dimensions of (50 m * 21 m) with fixed depth of 1.8 m, the second is for diving with an irregular surface area of (351) m2 and with depth of 5 m. The Total thermal losses from the two pools to the pool hall and from the pool hall to the outdoor environment were calculated for four months of winter season (November, December, January and February) and a computer program was built using the MATLAB (R2008a) environment to solve the mathematical model equations in order to calculate the solar fraction facor (ƒ) of the proposed solar heating system at different solar collecting areas which are (2000,2500,3000,3500,4000,4500,5000,6000,7000,8000,9000,10000) m2 and at five different types of flat-plate solar collector which are (A: one cover black solar collector, B: one cover selective absorber solar collector, C: two cover black solar collector, D: two cover selective absorber solar collector, and E: pool absorber (PVC) solar collector). The results obtained showed that the highest values of solar fraction factor were obtained when using the solar collector type D, and the lowest values obtained when using the solar collector type E. The values of solar fraction factor (ƒ) of the proposed solar heating system, at solar collecting area of 10000m2 and at mass storage of water in the storage tank of 25 kg/m2 collecting area, for type D are 84.27 % for November, 72.74% for December, 69.4% for January, and 82.91% for February, and for type E are 56.14% for November, 41.15% for December, 37.17% for January, and 50.6% for February.

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Dynamic Simulation of Outdoor Swimming Pool Solar Heating

Cited by 20 publications

References 8 publications

A Methodology of Energy Optimization in Indoor Swimming Pool

A Methodology of Energy Optimization in Indoor Swimming Pool

Experimental Study of a Stationary Hot Air Solar Collector Built with Hemispherical Concentrators and Enhanced with Fresnel Lenses

Thermal Performance Prediction of Indoor Swimming Pool Solar Heating System Using Different Types of Flat-Plate Solar Collectors

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