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Absorption Refrigerator RGE 400 from Åbybro camping og fritid 224L + 76L The absorption refrigerator doesn't use any electricity year Purchase Electricity Net payment NPV_i NPV tot Annuity 0 10'975 10'975 10'975 10'975 1 0 0 10'975 11524 2 0 0 10'975 5902 3 0 0 10'975 4030 4 0 0 10'975 3095 5 0 0 10'975 2535 6 0 0 10'975 2162 7 0 0 10'975 1897 8 0 0 10'975 1698 9 0 0 10'975 1544 10 0 0 10'975 1421 11 0 0 10'975 1321 12 0 0 10'975 1238 13 0 0 10'975 1168 14 0 0 10'975 1109 15 0 0 10'975 1057 16 0 0 10'975 1013 17 0 0 10'975 973 18 0 0 10'975 939 19 0 0 10'975 908 20 0 0 10'975 881 21 0 0 10'975 856 22 0 0 10'975 834 23 0 0 10'975 814 24 0 0 10'975 795 25 0 0 10'975 779 26 0 0 10'975 763 27 0 0 10'975 750 28 0 0 10'975 737 29 0 0 10'975 725 30 0 0 10'975 714 198
Absorption - electrical A++ refrigerator year Purchase Electricity Net payment NPV_i NPV tot Annuity 0 -6'976 0 -6'976 -6'976 -6'976 0 1 0 416 416 396 -6'580 -6909 2 0 416 416 377 -6'202 -3336 3 0 416 416 359 -5'843 -2146 4 0 416 416 342 -5'501 -1551 5 0 416 416 326 -5'175 -1195 6 0 416 416 310 -4'865 -958 7 0 416 416 296 -4'569 -790 8 0 416 416 282 -4'287 -663 9 0 416 416 268 -4'019 -565 10 0 416 416 255 -3'764 -487 11 0 416 416 243 -3'521 -424 12 0 416 416 232 -3'289 -371 13 0 416 416 221 -3'068 -327 14 0 416 416 210 -2'858 -289 15 0 416 416 200 -2'658 -256 16 0 416 416 191 -2'467 -228 17 0 416 416 181 -2'286 -203 18 0 416 416 173 -2'113 -181 19 0 416 416 165 -1'949 -161 20 0 416 416 157 -1'792 -144 21 0 416 416 149 -1'642 -128 22 0 416 416 142 -1'500 -114 23 0 416 416 135 -1'365 -101 24 0 416 416 129 -1'236 -90 25 0 416 416 123 -1'113 -79 26 0 416 416 117 -996 -69 27 0 416 416 111 -884 -60 28 0 416 416 106 -778 -52 29 0 416 416 101 -677 -45 30 0 416 416 96 -581 -38 Positive NPV means that Absorption refrigerator is advantageous 0 Approximation of wast heat needed for the absorption refrigerator Electrical refrigerator: Electricity consumption 208 kWh/y A++ refrigerators use 208kWh/y COP_ECH 2 The COP of a normal refrigerator is assumed to be 2 Cooling energy 416 kWh/y Absorption refrigerator: COP_ABS 0,25 The COP of a small platen cycle unit is around 0,25 Heat energy 1664 kWh/y Heat power (avg) 0,190 kW Estimation of electrical refrigerator COP T_H T_C COP_carnot AC 318 288 9,6 Refrigiator 303 263 6,6 199
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INTEGRATION OF SOLID OXIDE FUEL CEL
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Abstract It is investigated whether
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Preface This report is documentatio
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CONTENTS Preface . . . . . . . . .
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CONTENTS 4.2.3 SOFC stack . . . . .
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CONTENTS A.4 DG appendix . . . . .
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LIST OF FIGURES 4.3 Diagram of sing
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NOMENCLATURE Acronyms Acronym ABS A
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Greek (and other) Symbols Greek (an
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Subscripts Subscripts Subscript 2P
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1. INTRODUCTION Chapter 4, System d
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1. INTRODUCTION the electricity and
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1. INTRODUCTION 1.4 SOFC The fuel c
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1. INTRODUCTION 1.5 Heat driven coo
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1. INTRODUCTION Cycle description.
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1. INTRODUCTION Ammonia-water The C
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1. INTRODUCTION 1.5.3 Platen Munter
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1. INTRODUCTION Open loop In an ope
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1. INTRODUCTION 1.7 Problem stateme
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2. MARKET INVESTIGATION appendix A.
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2. MARKET INVESTIGATION 2.2.2 Ship
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2. MARKET INVESTIGATION Pay Back Ti
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2. MARKET INVESTIGATION 2.3.2 Micro
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2. MARKET INVESTIGATION Sensitivity
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2. MARKET INVESTIGATION • ECH pri
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2. MARKET INVESTIGATION 2.4.3 Resul
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2. MARKET INVESTIGATION 16000 14000
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2. MARKET INVESTIGATION Annuity pri
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2. MARKET INVESTIGATION 2.4.4 Concl
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C H A P T E R 3 COMPONENT DESCRIPTI
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3.1. Introduction The seven stream
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3.2. Absorber - ABSO 3.2 Absorber -
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3.2. Absorber - ABSO implicitly thr
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3.4. Burner - BURN 3.4 Burner - BUR
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3.5. Condenser - COND T [° C ] ΔT
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3.6. Desorber - DES 3.6 Desorber -
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3.7. Evaporator - EVAP 3.7 Evaporat
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3.8. Heat Exchanger - HEX 3.8 Heat
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3.8. Heat Exchanger - HEX The press
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3.10. Pre Reformer - PR 3.10 Pre Re
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3.11. Pump - PUMP 3.11 Pump - PUMP
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3.12. Solid Oxide Fuel Cell - SOFC
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3.14 Cooling Tower - TOWER 3.14. Co
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3.14. Cooling Tower - TOWER tower d
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3.14. Cooling Tower - TOWER The air
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3.15. Expansion valve - VA/VB possi
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4. SYSTEM DESCRIPTION 8 SPG 10 20 1
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4. SYSTEM DESCRIPTION Pre reformer
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4. SYSTEM DESCRIPTION which increas
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4. SYSTEM DESCRIPTION 4.3 Absorptio
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4. SYSTEM DESCRIPTION 4.3.3 Pumping
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4. SYSTEM DESCRIPTION The temperatu
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4. SYSTEM DESCRIPTION 4.5 Absorptio
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4. SYSTEM DESCRIPTION 4.6 Cooling T
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4. SYSTEM DESCRIPTION (below 100
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4. SYSTEM DESCRIPTION as: Ẇ AC =
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4. SYSTEM DESCRIPTION 4.8 Verificat
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4. SYSTEM DESCRIPTION SOFC net effi
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C H A P T E R 5 SIMULATION AND RESU
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5.1. Basic absorption cooling Figur
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5.1. Basic absorption cooling geous
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5.1.3 Changing evaporator temperatu
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5.1. Basic absorption cooling as de
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5.2. System configurations Red repr
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5.2. System configurations Dual Hea
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5.2. System configurations in a hot
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5.3. Partial optimization of standa
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Anode recycling (α SPG1 ) 5.3. Par
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5.4. Sensitivity Analysis ηsys,el,
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5.4. Sensitivity Analysis the press
Page 173 and 174: 5.4. Sensitivity Analysis 1. The x-
Page 175 and 176: 5.5 Total optimization of system 5.
Page 177 and 178: 5.5. Total optimization of system i
Page 179 and 180: 5.5. Total optimization of system e
Page 181 and 182: C H A P T E R 6 CASES AND ECONOMICS
Page 183 and 184: 6.2. High humidity climate BBC Home
Page 185 and 186: 6.2. High humidity climate Figure 6
Page 187 and 188: 6.3. Low humidity climate Figure 6.
Page 189 and 190: 6.4. Economics 6.4 Economics When t
Page 191 and 192: C H A P T E R 7 DISCUSSION In this
Page 193 and 194: 7.1.1 Accuracy and sensitivity 7.1.
Page 195 and 196: 7.2. Economical considerations Furt
Page 197 and 198: 7.2.3 Distributed Generation (DG) D
Page 199 and 200: 7.2. Economical considerations to 6
Page 201 and 202: 7.2. Economical considerations As m
Page 203 and 204: C H A P T E R 8 CONCLUSION System c
Page 205 and 206: For the APU segment a SOFC-ABS syst
Page 207 and 208: C H A P T E R 9 FURTHER WORK Some i
Page 209 and 210: BIBLIOGRAPHY [1] Acfshop.dk: http:/
Page 211 and 212: Bibliography [24] Nordea invest: ht
Page 213: Appendices 187
Page 216 and 217: A. MARKET INVESTIGATION A.1 Market
Page 218 and 219: A. MARKET INVESTIGATION No cost for
Page 220 and 221: Absorpton unit (free waste heat) Pr
Page 222 and 223: A. MARKET INVESTIGATION A.3 CHP app
Page 226 and 227: Sensitivity analysis The effect on
Page 228 and 229: A. MARKET INVESTIGATION A.4 DG appe
Page 230 and 231: From the "CHP in the Hotel and Casi
Page 232 and 233: Hotel with 230 rooms and 18000 m^2
Page 234 and 235: SOFC + Water Heating (no ABS), Cool
Page 236 and 237: 16000 Pay Back Time: Entire System
Page 238 and 239: SOFC + Water Heating (no ABS), Cool
Page 240 and 241: Hot climate SOFC + ABS + HW vs pure
Page 242 and 243: Assumptions SOFC price = 2650kr/kW
Page 244 and 245: Hot climate Increase (Delta NPV_10)
Page 246 and 247: Prices of absorption cooling units
Page 248 and 249: 1'000'000 900'000 800'000 143'600 7
Page 250 and 251: A. MARKET INVESTIGATION A.6 Gas and
Page 252 and 253: Retail electricity prices Exchange
Page 254 and 255: B. DIAGRAMS AND PLOTS B.1 GAX diagr
Page 256 and 257: B. DIAGRAMS AND PLOTS B.3 Closed ad
Page 258 and 259: B. DIAGRAMS AND PLOTS B.4.2 p-T dia
Page 260 and 261: C. EES Efficiencies SOFC η inver t
Page 262 and 263: C. EES ∆ p;GGHE X 1;c = −1 [kPa
Page 264 and 265: C. EES ˙Q loss;Bur n = 0 [kW ] ˙Q
Page 266 and 267: C. EES SOFC ∆ T ;SOFC ;av = 30 [C
Page 268 and 269: C. EES C.2 Results - Standard param
Page 270 and 271: C. EES 244 DES2 h;o = 42 DES2 i = 7
Page 272 and 273: C. EES SOFC ano;i = 5 SOFC ano;o =
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C. EES Point T i p i ṁ i qu i h i
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C. EES C.3 Results - Optimized para
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C. EES ∆ T ;min;W GHE X 3;w;i = 1
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C. EES ˙Q tr ans;W GHE X 3 = 2,752
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C. EES Point T i p i ṁ i qu i h i
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C. EES C.4 Results - Uncertainty pr
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C. EES ∆T ;min;W GHE X 3;w;i = 15
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C. EES ∆p;TOW ER1;air ;dr y = 0,1
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C. EES ∆p;GGHE X 1;c = −1 ±
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C. EES C.4.4 ∆p for absorption su
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C. EES C.4.5 ˙Qloss for absorption
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A P P E N D I X D OTHER D.1 Explana
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D.3. Water consumption Hence it is
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A P P E N D I X E OPTIMIZATION GRAP
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E.1. Simulations and Results E.1.2
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E.1. Simulations and Results Figure
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E.1. Simulations and Results Figure
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E.2. Cases E.2 Cases E.2.1 Extreme
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SEG Scandinavian Energy Group Aps.
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8 SPG 1 10 1-α GGHEX1 9 α 7 GGHEX
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1 8 GGHEX1 CH4, in Air, in 21 2 11
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