Analysis of an open-air swimming pool solar heating system by using an experimentally validated TRNSYS model

Ruiz, Elisa; Martínez, Pedro García

doi:10.1016/j.solener.2009.10.015

Cited by 59 publications

(31 citation statements)

References 4 publications

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“…According to Ruiz et al [5] the most trustable equation for calculating evaporating mass flow m evap (kg/s) and evaporation heat losses Q evap (W), is the Richter equation, where:…”

Section: Heat Losses To the Surroundingsmentioning

confidence: 99%

“…This effect is incremented by the number of interconnected collectors. Referred to the pool's thermal design Ruiz et al [5] analyses the case of the thermal behavior of a swimming pool of 100m 2 using TRNSYS 16 validated by experimental results. The study showed that there exists high dependency of the wind speed over the temporal development of the water temperature, originated by evaporation heat losses.…”

Section: Introductionmentioning

confidence: 99%

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Thermal and Hydraulic Design of a Solar Collector Field for a Primary School Pool

et al. 2014

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The methodology and results of the thermal and hydraulic design for a solar heating field of an elementary school's semi-olympic pool is presented. Improved flat solar collectors with copper tube and aluminum fins were used. From own experiences, many Mexican solar fields do not operate correctly because of their poor flow balance (irrigation) , may be due to lack of attention given to this aspect. That's why the research of this work focuses on studying the behavior of the pressure drop in a hydraulic arrangement, particularly of this facility, in which all collector batteries are connected in parallel. Previously two solar collectors were sent to a specialized laboratory for certification tests, obtaining the optimum water flow value for maximum thermal efficiency. The results show an optimum range between 4 and 11 L/min. On the other hand, the development of a thermal model based on a temporal energy balance, allowed us to determine that the optimum solar heating area is around 338 m 2 , using 195 flat-coated solar collectors, with copper tube and aluminum fin. For this heating system a water volume/solar collection area relation, called REVA, of 1.45m 3 /m 2 was obtained. Referred to the hydraulic design and using the program EPANET 2.0 it was found that in the proposed arrangement, 192 solar collectors were irrigated with the optimal range and only 2 solar collectors were below the lower range at 3 L/min. NomenclatureA C solar surface collection (m 2 )

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“…According to Ruiz et al [5] the most trustable equation for calculating evaporating mass flow m evap (kg/s) and evaporation heat losses Q evap (W), is the Richter equation, where:…”

Section: Heat Losses To the Surroundingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal and Hydraulic Design of a Solar Collector Field for a Primary School Pool

et al. 2014

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“…W literaturze dostępne są informacje dotyczące metodyki obliczeń cieplnych basenów, które ograniczają się do obiektów zamkniętych i otwartych [5][6][7][8], a dla wariantu basenu z ruchomym zadaszeniem są one bardzo nieliczne i fragmentaryczne [4]. W związku z tym opracowano własną metodykę obliczeń cieplnych dla basenu, w którym zastosowano dodatkowo osłonę przezroczystą [2,3].…”

Section: Wprowadzenieunclassified

Wpływ warunków otoczenia na wybrane parametry cieplne basenu kąpielowego z ruchomym zadaszeniem

Garnysz

Zapałowicz

2014

ZN PRz Mechanika

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W pracy przedstawiono wyniki pomiarów parametrów cieplnych przydomowego basenu kąpielowego z ruchomym zadaszeniem. Ruchoma osłona basenu wykonana jest z wygiętych płyt bezbarwnego przezroczystego poliwęglanu jednokomorowego umocowanych w konstrukcji aluminiowej. Pomiary przeprowadzono w obiekcie znajdującym się na terenie prywatnej posesji, zlokalizowanej w gminie Dobra Szczecińska, w okresie kończącym sezon użytkowania basenu. Zamontowana w obiekcie aparatura badawczo-rejestrująca pozwoliła na zmierzenie wartości charakterystycznych parametrów cieplnych rozpatrywanego basenu związa-nych z następującymi ośrodkami: woda w basenie, powietrze i powierzchnia pły-tek pod zadaszeniem, powietrze atmosferyczne, powierzchnia osłony oraz grunt w otoczeniu basenu. Dane były rejestrowane całodobowo, przez okres kolejnych 10 dni. Zarejestrowane dane pozwoliły na określenie zależności ujmujących wpływ warunków pogodowych: natężenia promieniowania słonecznego, temperatury i ciśnienia powietrza atmosferycznego oraz prędkości wiatru panujących w bliskim sąsiedztwie badanego obiektu na temperaturę wody oraz parametry powietrza pod osłoną (temperatura i wilgotność względna). Na podstawie analizy otrzymanych wyników badań stwierdzono, że średnia temperatura wody w basenie zależy przede wszystkim od wartości temperatury powietrza atmosferycznego. Badania doświadczalne wykazały także istotny wpływ temperatury powietrza atmosferycznego i natężenia promieniowania na parametry powietrza znajdującego się pod osłoną. Natomiast nie udało się określić wpływu ciśnienia i prędkości wiatru na parametry cieplne rozpatrywanych ośrodków.Słowa kluczowe: basen otwarty, zadaszenia basenów, osłona przezroczysta, warunki atmosferyczne 1 Autor do korespondencji: Agnieszka Garnysz, Zachodniopomorski Uniwersytet Technologicz-

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“…Systems almost always use pumped circulation and together with the pool itself collectors are drained in winter in locations at higher latitudes. Parametric analyses have been conducted to optimize solar heated swimming pool configurations using hour-by-hour simulation [62]. Figure 12 shows roof-mounted unglazed collector providing heated water for the adjacent swimming pool.…”

Section: Swimming Pool Heatingmentioning

confidence: 99%

“…The solar energy system simulation software used most commonly is TRNSYS [62,132] either in its widely-available freeware form or as a kernel accessed through a proprietary graphical user interface. It includes ordinary differential and algebraic equations that describe each system component and a differential equation solver.…”

Section: Simulation and Sizingmentioning

confidence: 99%

Solar Water Heaters: A Review of Systems Research and Design Innovation

Norton¹

2011

Green

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Solar water heating can be considered to be an established mature technology. The achievement of this status is the outcome of over a century of system development that culminated with a flourish of innovation in the last thirty years. Drivers for research and development have been achieving economic viability by devising systems that, for specific applications in particular climate contexts produced more hot water per unit cost. Reductions in both initial capital and installation costs have been achieved as well as in those associated with subsequent operation and maintenance. Research on solar water heating is discussed with the emphasis on overall systems though some key aspects of component development are also outlined. A comprehensive taxonomy is presented of the generic types of solar water heater that have emerged and their features, characteristics and performance are discussed.The method(s) used to drive fluid flow, the fluid(s) used and the extent that a particular system is a single factory-built item prior to installation are the primary attributes that distinguish each principal generic solar water heater type. The nature and scale of applications together with the desire and scope for building integration, installation constraints and extent of adaptation to climatic factors have also influenced the broad strands of system design evolution that have lead to the current set of available types. At the simplest level, solar water heaters are classified as either passive or active depending on whether the heat transfer fluid circulates buoyantly or by the action of a pump respectively. They are either direct or indirect depending on whether the fluid in the collector constitutes the hot water withdrawn or is a separate fluid that passes through a heat exchanger. The heat exchanger can be part of another hydronic circuit with the hot water store [1,2], surround the store [3,4] or most commonly, is immersed in the store [5].

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Analysis of an open-air swimming pool solar heating system by using an experimentally validated TRNSYS model

Cited by 59 publications

References 4 publications

Thermal and Hydraulic Design of a Solar Collector Field for a Primary School Pool

Thermal and Hydraulic Design of a Solar Collector Field for a Primary School Pool

Wpływ warunków otoczenia na wybrane parametry cieplne basenu kąpielowego z ruchomym zadaszeniem

Solar Water Heaters: A Review of Systems Research and Design Innovation

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