Cost-Energetic Analyses of Ice Storage Heat Exchangers in Solar-Ice Systems

Carbonell, Daniel; Battaglia, Mattia; Philippen, Daniel; Haller, Michel

doi:10.18086/swc.2017.33.02

Cited by 2 publications

(3 citation statements)

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“…The remaining component models were provided in [2], where a complete solar-ice system based on a de-icing concept was validated with a one year monitoring data of a pilot plant located in Jona, Switzerland. The control explanation for non de-icing solar-ice concepts, as the ones used in this paper, can be found elsewhere [6]. The time step of the yearly simulations was set to 120 seconds.…”

Section: Methodsmentioning

confidence: 99%

“…Dynamic system simulations were carried out for a set of ice storage volumes of 0.4 m 3 /MWh, 0.5 m 3 /MWh and 0.6 m 3 /MWh and a set of collector areas of 1.5 m 2 /MWh, 2 m 2 /MWh and 2.5 m 2 /MWh, where the MWh unit refers to the yearly heat demand. This size range was shown to be cost competitive while achieving system performances in the range of ground source heat pump systems for single family houses [6]. However, companies such as Viessman (Isocal), tend to size the ice storage as 1 m 3 /MWh for single family homes and well above 2 m 3 /MWh for multi-family buildings using as source non-selective plastic collectors that are used more as air heat exchangers than as solar collectors.…”

Section: Collector Area and Ice Storage Volume Sizesmentioning

confidence: 99%

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Solar-ice systems for multi-family buildings: hydraulics and weather data analysis

et al. 2019

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Dynamic simulations using the TRNSYS environment were used to assess the potentials of solar-ice systems for multi-family buildings in Switzerland. The goals of this paper were: i) to analyze and quantify the effects of different hydraulics in the primary loop (solar collectors, ice storage and heat pump), ii) to determine the energetic performance of solar-ice systems for multi-family buildings and iii) to assess the influence of the chosen weather data on the system performance. Simulations were carried out for a range of collector areas of 1.5 m2/MWh to 2.5 m2/MWh and for ice storage volumes of 0.4 m3/MWh to 0.6 m3/MWh being MWh the total yearly heat demand. An averaged increase of the ΔSPF of 26% was obtained by using direct solar heat in the warm storage. Adding the possibility to use solar heat for heat pump evaporator, increased the SPFSHP+ by 31 %. Simulations of eight cities in Switzerland using cold, warm and normal weather data sets from SIA were carried out. Results for Davos and Locarno achieved the best results with averaged SPFSHP+ of 7.4 and 6.3 respectively. Simulations for the rest of the cities achieved averaged SPFSHP+ in the range of 3.8 to 4.5. The use a cold weather data respect to the normal one defined by the SIA standard led to an average decrease of the SPFSHP+ of 25 %. The use of a warm weather data led to an increase of the SPFSHP+ of 5 %.

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Section: Methodsmentioning

confidence: 99%

Section: Collector Area and Ice Storage Volume Sizesmentioning

confidence: 99%

Solar-ice systems for multi-family buildings: hydraulics and weather data analysis

et al. 2019

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“…meergezinswoningen [17]: de pijlen illustreren de warmtefluxen die zich op verschillende temperatuurniveaus bevinden -rood voor hoge temperaturen (> 30°C), oranje voor gemiddelde temperaturen (> 10°C) en blauw voor koude temperaturen (< 10°C).…”

Section: Figuur 34 Schematische Weergave Van Het Principe Van Zonne-i...unclassified

Een voorraadje voor de winter : Mogelijkheden voor seizoensopslag van thermische energie voor de Nederlandse glastuinbouw

Mishra,

van Breugel,

Kempkes

2024

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Mogelijkheden voor seizoensopslag van thermische energie voor de Nederlandse glastuinbouw Een voorraadje voor de winter Rapport WPR-1286 Kshiti Mishra, Bram van Breugel, Frank Kempkes ReferaatIn semi-gesloten kassystemen die zijn uitgerust met ontvochtigers op basis van een warmtepomp gaat het ontvochtigingsproces gepaard met het terugwinnen van energie, die mogelijk kan worden gebruikt om aan de warmtevraag van de kas te voldoen en het totale energieverbruik te verminderen. De periode met de hoogste ontvochtigingsvraag (dus hoogste energieterugwinning) valt echter niet samen met de periode met de hoogste warmtevraag. Deze onbalans kan worden overbrugd door lange-termijn/seizoensgebonden opslag van de gewonnen energie. In dit rapport worden enkele commercieel verkrijgbare oplossingen voor thermische energieopslag voor de lange termijn geëvalueerd op hun haalbaarheid voor gebruik in kassen. Voor twee gesimuleerde glastuinbouwsystemen is het benodigde volume voor seizoensopslag uitgerekend.

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Cost-Energetic Analyses of Ice Storage Heat Exchangers in Solar-Ice Systems

Cited by 2 publications

References 3 publications

Solar-ice systems for multi-family buildings: hydraulics and weather data analysis

Solar-ice systems for multi-family buildings: hydraulics and weather data analysis

Een voorraadje voor de winter : Mogelijkheden voor seizoensopslag van thermische energie voor de Nederlandse glastuinbouw

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