IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at
IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at
IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask B Report, 2009-11-12 m²(STC)/kW(TDC) 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 31% 35% 4% 2% 8% 5% 2% 3% 3% 4% 2% Flat plate/Absorption ETC/Absorption CPC/Absorption PTC/Absorption Flat plate/Adsorption ETC/Adsorption CPC/Adsorption Flat plate/DECs CPC/DECs Air/DECs Flat plate/DECl Combination STC/TDC Figure 4.4 Mean of the rates used for each combination taking into account the rate between the used combination and the overall number of cases (95) 13.00 12.00 11.00 10.00 9.00 8.00 7.00 m²(STC)/kW(TDC) 6.00 5.00 4.00 3.00 2.00 1.00 0.00 Flat plate/Absorption ETC/Absorption Flat plate/Adsorption ETC/Adsorption Air/DECs Figure 4.5 Rates between the solar surface collectors installed per kW of cooling capacity for the most used technologies combinations Heat and cold storage tanks 43 large scale installations are equipped with hot water storage tanks. The rates between the volumes of the tanks and the installed solar surfaces vary case by case, even for those ones which appear similar as shown in Tab. 3. Page 12
IEA SHC Task 38 Solar Air Conditioning and Refrigeration Subtask B Report, 2009-11-12 Tab. 3 Collectors’ surface, cooling power, technical data and the rates between them, of two selected systems using the most applied technology combinations. Installations Press and Information Centre of the German Government Ott & Spiess Headquarter Locations Berlin (DE) Langenau (DE) Final Use Offices Offices Cooling capacity 44 kW 35 kW Collectors’ surface 348 m² of ETC 22 m² of ETC Solar Tank 1,600 l 2,000 l hot water Storage/collectors 4.60 l/m² 90.9 l/m² Figure 4.6 shows an average calculated on 40 cases (hybrid systems are excluded). Nevertheless, such average values are still based on quite different rates as shown in Figure 4.7. In these cases, any average could not reflect the reality. 70.00 53% 60.00 50.00 15% l/m²(STC) 40.00 30.00 30% 20.00 10.00 0.00 FP ETC CPC PTC 3% STC technologies Figure 4.6 Mean of the litres of solar tanks used for different technologies of solar collectors taking into account the rate between the used combination and the overall number of examined cases (40) Page 13
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- Page 364 and 365: Fragebogen an Besitzer solare Kühl
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<strong>IEA</strong> SHC Task 38 <strong>Solar</strong> Air Conditioning <strong>and</strong> Refriger<strong>at</strong>ion Subtask B Report, 2009-11-12<br />
Tab. 3 Collectors’ surface, cooling power, technical d<strong>at</strong>a <strong>and</strong> the r<strong>at</strong>es between them, of two<br />
selected systems using the most applied technology combin<strong>at</strong>ions.<br />
Install<strong>at</strong>ions<br />
Press <strong>and</strong> Inform<strong>at</strong>ion Centre of<br />
the German Government<br />
Ott & Spiess Headquarter<br />
Loc<strong>at</strong>ions Berlin (DE) Langenau (DE)<br />
Final Use Offices Offices<br />
<strong>Cooling</strong> capacity 44 kW 35 kW<br />
Collectors’ surface 348 m² of ETC 22 m² of ETC<br />
<strong>Solar</strong> Tank 1,600 l 2,000 l hot w<strong>at</strong>er<br />
Storage/collectors 4.60 l/m² 90.9 l/m²<br />
Figure 4.6 shows an average calcul<strong>at</strong>ed on 40 cases (hybrid systems are excluded).<br />
Nevertheless, such average values are still based on quite different r<strong>at</strong>es as shown<br />
in Figure 4.7. In these cases, any average could not reflect the reality.<br />
70.00<br />
53%<br />
60.00<br />
50.00<br />
15%<br />
l/m²(STC)<br />
40.00<br />
30.00<br />
30%<br />
20.00<br />
10.00<br />
0.00<br />
FP ETC CPC PTC<br />
3%<br />
STC technologies<br />
Figure 4.6 Mean of the litres of solar tanks used for different technologies of solar collectors taking<br />
into account the r<strong>at</strong>e between the used combin<strong>at</strong>ion <strong>and</strong> the overall number of examined cases<br />
(40)<br />
Page 13
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