Udvikling og demonstration af lavenergifjernvarme til lavenergibyggeri

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28 Version: Nov. 18, 2008 7. The TRNSYS calculated fluid temperatures in the tank are compared to the measured temperatures at the surface of the tank. The comparison between the calculations and the experiments shows that the calculations agree with the measurements with an underestimated degree of thermal stratification. The reason for the disagreement could be due to the fact that it is not possible to totally avoid numerical diffusion due to the limitation on the node number. Another reason could be the influence on thermal stratification by the natural convection in the tank caused by heat loss from the wall. The natural convection helps to build up thermal stratification in the tank, which is not considered in the TRNSYS tank model. It must be mentioned that the calculated heat losses will be lower than the tank heat losses in practice. Especially pipe connections in the upper part of the tank will strongly increase the tank heat loss.
Appendiks 5: Datablad for prototypefjernvarmebeholderunitten Danfoss Comfort LGS/LGM C:\Documents and Settings\cnc\Dokumenter\LavEByg Fjernvarme - Appendiks 5.doc 146
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Hovedrapport Energistyrelsen - EFP
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Summary The project describes a des
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Indholdsfortegnelse Side Summary ..
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Fase 1: Analyse og fastlæggelse af
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2 Analyse og fastlæggelse af desig
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Figur 2 Princip for fjernvarmeunit
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Figur 3 Oversigt over ledningsnet m
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vandsforbrug. Et alternativ er at a
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DKK/hus 80.000 70.000 60.000 50.000
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2.6 Kravspecifikation På baggrund
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løbstemperaturen til varmekredsen
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3.2 Fjernvarmerør LOGSTOR har i fo
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4 Demonstration og formidling I bes
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6 Appendiks Appendiksrapport Energi
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Appendiks 1: A New Low-Temperature
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REFERENCE HOUSE & URBAN AREA The re
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The other type of pipe is a steel p
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• Network pipes are chosen in a h
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Component prices and data for the h
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The 11th International Symposium on
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(2) 15 liters × 2 kitchen washes f
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totally avoid numerical diffusion d
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Fig.11 3D CAD model of Danfoss IHPT
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Appendiks 3: Analyse og design, fje
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Dokumentnr. 006 Version Udgivelsesd
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Udvikling og demonstration af lavte
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Page 95 and 96: Udvikling og demonstration af lavte
Page 117 and 118: Version: Nov. 18, 2008 TRNSYS Simul
Page 119 and 120: Abstract 1 Version: Nov. 18, 2008 I
Page 121 and 122: 3 Version: Nov. 18, 2008 higher tha
Page 123 and 124: Temperature, °C 25 20 15 10 5 0 Te
Page 125 and 126: The heat loss coefficient from the
Page 127 and 128: 9 Version: Nov. 18, 2008 following
Page 129 and 130: Temperatures, C 60.0 50.0 40.0 30.0
Page 131 and 132: 5 Influence of the size of the heat
Page 133 and 134: UA , kW/K 5 4 4 3 3 2 2 1 1 Heat ex
Page 135 and 136: 17 Version: Nov. 18, 2008 tank. Due
Page 137 and 138: 19 Version: Nov. 18, 2008 Hot water
Page 139 and 140: Water volume from the tank directed
Page 141 and 142: Water volume from the tank directed
Page 143 and 144: Temperature, °C 60 50 40 30 20 10
Page 145: 27 Version: Nov. 18, 2008 Table 15
Page 149 and 150: Comfort LGS/LGM Diagram - Eksempel
Page 151 and 152: Målinger af varmetab og bestemmels
Page 153 and 154: Figur 2 Varmeledningstallet lambda,
Page 155 and 156: Figur 6 Resultater af test nummer 1
Page 157 and 158: Figur 8 Resultater af test nummer 2
Page 159 and 160: Figur 10 Resultater af test nummer
Page 161 and 162: Figur 12 Resultater af test nummer
Page 163 and 164: Figur 13 Skitse af dimensionerne fo
Page 165 and 166: Testnummer 2b: Beregning ved Trør
Page 167 and 168: Appendiks 7: Sammenfatning af fokus
Page 169 and 170: B) Baggrund og formål med projekt
Page 171 and 172: D) Forslag til units Oplæg: Løsni
Page 173: Intet klart svar. 17. Er der andre
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Udvikling og demonstration af lavenergifjernvarme til lavenergibyggeri

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