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IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask C2-A, November 9, 2009 Figure 1. Simulated chiller response on 10K step in generator inlet temperature without thermal mass. page 82
IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask C2-A, November 9, 2009 Figure 2. External heat flows of simulated chiller response on 10K step in generator inlet temperature without thermal mass In Figure 1, graph 1 shows the temperatures in the generator which follow immediately the step of the external inlet temperature, t 11 , because no thermal storage has been assumed. Accordingly, the heat flow to the generator increases (Figure 2, top left graph). The strong solution leaving the generator bundle follows immediately (x sG in graph 4 of Figure 1). The strong solution leaving the generator sump follows in a damped fashion (x sA in graph 4) because of the mass storage in the sump. The first change in mass fraction of the strong solution reaches the absorber inlet two steps later. Three steps after the initial change the mass fraction of the weak solution leaving the absorber bundle begins to change as well (x wA in graph 4); the solution in the sump follows as well (x wG in graph 4) but this is hardly visible due to the damping effect of the mass which is stored in the sump. The flow of weak solution is kept constant (m sol,w in graph 7). The flow of strong solution increases immediately (m sol,s in graph 7). This due to the rise in generator pressure (p G in graph 5), which drives more solution through the expansion valve. The rise in pressure, in turn is a consequence of the rise in the condenser heat flow (Figure 2, top right graph) due to the rise of vapour mass flow to the condenser (m vG in graph 6). The flow of strong solution from the generator bundle to the generator sump (m tbG in graph 8) decreases because the inlet flow is constant and more vapour is being produced. Of course, also the mean generator and condenser temperature (T G in graph 1 and T C in graph 2), and the condenser cooling water outlet temperature (t 16 in graph 2) increases. When the more concentrated solution reaches the absorber in step 204, the pressure immediately falls (p A in graph 5). The absorber absorbs more vapour, the vapour flow from evaporator to absorber increases (m vA in graph 6 of Figure 1), the flow from the absorber bundle to the sump increases (m tbA in graph 8), and the absorber heat increases (Figure 2, bottom right graph). Accordingly, the temperature of the cooling water leaving the absorber increases (t 14 in graph 2). At the same time, the evaporator heat increases (Figure 2, bottom page 83
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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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Power (kW) 20 19 18 17 16 15 14 13
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Country Name/ Company City Applicat
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79 Spain Private House Olivares-Sev
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Questionnaire for Owners of Small-S
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Fragebogen an Besitzer solare Kühl
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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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