IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at

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IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask A Report, Date:… Fig. 5. Temperature profile of the reject heat loop 4.5 Detailed Analysis of the long term stability of the latent heat storage Between 2007 and 2010 recurring measurements of loading and unloading the storage were carried out to determine long term effects on the PCM. These measurements showed no degradation of thermal power or capacity (see Figure 6), confirming the assumption that the separation of the PCM could be prevented successfully. Power / kW 10 9 8 7 6 5 Storage 1 27.03.2010 Storage 2 27.03.2010 Storage 1 29.10.2008 Storage 2 29.10.2008 Energy / kWh 60 55 50 45 40 35 30 4 3 2 25 20 15 10 Storage 1 27.03.2010 Storage 2 27.03.2010 Storage 1 29.10.2008 Storage 2 29.10.2008 1 0 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 Time / hh:mm 10:00 11:00 12:00 13:00 14:00 15:00 5 0 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 Time / hh:mm 11:00 12:00 13:00 14:00 15:00 Fig. 6. Power and the stored energy of the two PCM storage modules during loading with a heat carrier supply temperature of 36 °C and a flow rate of 1.5 m 3 /h Figure 7 shows the charging and discharging cycles of the latent heat storage during summer and winter operation in 2008 and 2009 (data for 2009 in the following text in brackets), respectively. In total 293 (223) charging and discharging cycles have been performed. During the heating season a total of 6478 (3922) kWh solar heat has been stored, whereof 5741 (3323) kWh heat could be discharged and transferred to the heating system. In the cooling period 2105 (2053) kWh reject heat of the absorption chiller have been stored. In this case with close temporal coherence of loading and unloading a storage efficiency of 96,6% (85,4%) has been accomplished. Figure 7 furthermore illustrates the large impact of the weather situation on the utilization of the latent heat storage: Due to mild and sunny weather in spring 2008 rather large amounts of heat have been processed whereas a substantially lower utilization of the storage has been accomplished in winter 2008/09. Heat / kWh Cooling 2008 120 loading 100 80 60 40 20 0 -20 -40 -60 -80 -100 unloading -120 Jan Feb Mrz Apr Mai Jun Jul Aug Sep Okt Nov Dez
IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask A Report, Date:… Heat / kWh Cooling 2009 120 loading 100 80 60 40 20 0 -20 -40 -60 -80 -100 unloading -120 Jan Feb Mrz Apr Mai Jun Jul Aug Sep Okt Nov Dez Fig. 7. Loading and unloading cycles of the PCM storage
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IEA Solar Heating and Cooling Progr
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IEA Solar Heating and Cooling Progr
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Endbericht Solare Kühlung und Klim
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Task 38 Solar Air-Conditioning and
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IEA SHC Task 38 Solar Air Condition
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3.1 Adsorption Systems Table 1: Ads
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4 Heat Rejection There is a number
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M M IEA SHC Task 38 Solar Air Condi
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M M M IEA SHC Task 38 Solar Air Con
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IEA SHC Task 38 Monitoring Procedur
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Table of tables Table 1 List of ele
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Pompe évaporateur + compteur C3 Dr
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80 70 Temperature (°C) 60 50 40 3
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Power (kW) 20 19 18 17 16 15 14 13
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Page 274 and 275: Task 38 Solar Air-Conditioning and
Page 276 and 277: IEA SHC Task 38 Solar Air Condition
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Cuestionario para propietarios de i
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Questions to Package Solution Provi
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9. Maintenance o What type of maint
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Grundprinzip Solare Wärme thermisc
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Hintergrund Operating Agent: Hans-M
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- Leistungsvergleich von verfügbar
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Subtask A: Pre-engineered systems f
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Abb. 3: Das Bürogebäude in St. Sc
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Beispiele realisierter großer Syst
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a) b) c) Abb. 9: Installation eines
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Subtask C: Modelling and fundamenta
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Liste der Systeme im Monitoring von
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Liste der Systeme im Monitoring von
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Marletta, L., Evola, G. and Sicurel
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Ellehauge & Kildemoes Vestergade 48
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Tekniker Centro Tecnológico Teknik
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IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at

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