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Graduation presentation2N  OV                                                      Bart Pieters 4036255     EM       BER  ...
Part 1: Introduction                       2
Part 1: IntroductionPart 2: Design                       3
Part 1: IntroductionPart 2: DesignPart 3: Results                       4
Part 1   Introduction                  5
What   Is my graduation about?                                 6
7
Rezoning of vacant office buildings to residential buildings                                                           8
Former office building, Wageningen                                     9
10
11
12
Former tax office, Utrecht•	Gerbrandystraat 20, Utrecht;•	Originally build in 1981;•	Structural vacant since 2010;        ...
Housing areaHousing area               Housing area                                 14
Original drawingLow-rise (3 storeys)                   15
Side - Entrance                  Entrance                             Original drawing                             Low-ris...
Side - Entrance                  Entrance                             Original drawing                             Low-ris...
Side - Entrance                  Entrance                             Original drawing                             Low-ris...
Original drawinghigh-rise (11 storeys)                    19
From office towards an energy-neutral residential building                                                        20
r s                                        rte                                   s ta                           a nd      ...
From office towards an energy-neutral residential building                                                        22
Why   This specific topic?                             23
24
•	 Dutch office market	 46.5 	 million m2		0                                                  25
•	 Dutch office market	 46.5 	 million m2		    •	 Office vacancy	      6.6 	 million m2 	 (14%)	0                         ...
•	 Dutch office market	 46.5 	 million m2		    •	 Office vacancy	      6.6 	 million m2 	 (14%)	    •	 Healthy market	    ...
•	 Dutch office market	   46.5 	 million m2		    •	 Office vacancy	        6.6 	 million m2 	 (14%)	    •	 Healthy market	...
•	 Dutch office market	   46.5 	 million m2		    •	 Office vacancy	        6.6 	 million m2 	 (14%)	    •	 Healthy market	...
•	 Dutch office market	   46.5 	 million m2		    •	 Office vacancy	        6.6 	 million m2 	 (14%)	    •	 Healthy market	...
16.6       31
17.716.6       5%↑               32
17.7       Housing shortage 600.00016.6                                  5%↑                                          33
34
35
36
Products       16%    31 kWh/p/d                                                                         Other fossil    8...
Spring agreement 20082011:		 25% co2 reduction2015:		 50% co2 reduction2020:		 Energy neutral                            38
From office towards an energy-neutral residential building                                                        39
Former tax office, Utrecht?                              40
Why the former tax office?Former tax office, Utrecht•	Energy crisis 1973;•	Gloomy colours;•	Modular structure;•	Prefabrica...
Research question(How) Is it possible to transform the formertax office in Utrecht to an energy-neutralresidential buildin...
Research question(How) Is it possible to transform the formertax office in Utrecht to an energy-neutralresidential buildin...
from office to energy-neutral residential building                                                 44
from office to energy-neutral residential building                                                 45
Energy-neutral definitionThe energy within the project boundary is equal to theamount of renewable energy that is generate...
Energy-neutral definitionThe energy within the project boundary is equal to theamount of renewable energy that is generate...
Energy-neutral definition1.	Building related energy                             BRE: 63%                                  ...
Energy-neutral definition1.	Building related energy2.	User related energy                                           BRE: 6...
Energy-neutral definition1.	Building related energy2.	User related energy3.	Material related energy                       ...
Energy-neutral definition1.	Building related energy2.	User related energy3.	Material related energy                       ...
How   is this objective achieved?                                    52
1    Transformation design2    BRE             - EPC ENORM             - Manual calc3    URE     - Greencalc+4    MRE     ...
1    Transformation design2    BRE             - EPC ENORM             - Manual calc3    URE     - Greencalc+4    MRE     ...
1    Transformation design2    BRE             - EPC ENORM             - Manual calc3    URE     - Greencalc+4    MRE     ...
1    Transformation design2    BRE             - EPC ENORM             - Manual calc3    URE     - Greencalc+4    MRE     ...
1    Transformation design2    BRE             - EPC ENORM             - Manual calc3    URE     - Greencalc+4    MRE     ...
1    Transformation design2    BRE             - EPC ENORM             - Manual calc3    URE     - Greencalc+4    MRE     ...
Part 2 Transformation design                         59
Design aims              60
Design aims              61
Design aims              62
Design assumptionsProgram• Starter housings:     5330 m2• Business premises:     720 m2• Dorm rooms:           3500 m2• Co...
Design assumptionsProgram                           User comfort• Starter housings:     5330 m2   • Two-sided openable• Bu...
Spatial design1.	Define habitable floor area                                 65
Spatial design                                             Problem zones     stair cases         stair cases     deep dark...
Spatial design  starter housings                      Program division  business premises  student housings               ...
Spatial design1.	Define habitable floor area2.	Increase habitable floor area                                   68
Spatial design     stair cases     deep dark areas     sufficient daylight25         2900 m2 (35%)   4900 m2 (60%)          ...
Spatial design                                                + 400 m2                           + 1600 m2       Original ...
Spatial design•	 13,000 m2 is a rough estimation                                     71
Spatial design•	 13,000 m2 is a rough estimation•	 Optimized to gain floor space                                     72
Spatial design•	 13,000 m2 is a rough estimation•	 Optimized to gain floor space•	 Specification required•	 Influenced by ...
Climate design                 74
Climate design                 1.	Thermal boundary                 2.	Ventilation                 3.	Heating / Tap water  ...
Former tax office                    Office area                    Office area                    Office area            ...
Former tax office                    Office area                    Office area                    Office area            ...
Former tax office         installation                     18815+         space                                          1...
1. Thermal boundary                                     1                           2                        3            ...
1. Thermal boundary OUTSIDE                        ATRIUM                 Thermal mass                                    ...
1. Thermal boundary OUTSIDE              ATRIUMwinter solargain                               81
2. Ventilation                 82
2. Ventilation OUTSIDE                       ATRIUM                 Natural air                  supply                   ...
84
2. Ventilation OUTSIDE                       ATRIUM                 Extended                 living room                  ...
2. Ventilation OUTSIDE         ATRIUM  bypass                          86
2. VentilationFormer tax Office   Transformation zero                                          87
88
2. Ventilation                 89
2. Ventilation                 40% reduction                                 90
2. Ventilation                 91
2. Ventilation                 92
4. Heating - Cooling - Tap water            Dual pass          Heat exchanger                                         Dual...
70˚C                 40˚C                                      HT-CV                HT-CV                                 ...
5. Energy production                       95
5. Energy productionPV panels                  Solar glass                 PV-T panelsType:	     ZEN power cp    Type:	   ...
Electrical energy1205 GJThermal energy1461 GJ                 97
12                      12                                                                                                ...
12    11    10A                                                                A    9    8    7    6    5    4            ...
Toilet    1.24 m2              Bath room                 1.51 m2              5.75 m2                          Living room...
Final program     Low-rise (4 storeys):	    7000 m2     High-rise (12 storeys):		 6600 m2       					     Total:	         ...
Former tax Office   Transformation zero                                          102
103
104
105
Office area              01   106
+9550                                  Balcony                                                  +8250                   Li...
Part 3 Energy balance Results                          108
1.	BRE2.	URE3.	MRE         Energy Balance (GJ)                               109
Energy scale1 GJ               110
Energy scale1 GJ = 1000 MJ                 111
Energy scale1 GJ = 1000 MJ = 278 kWh                           112
Energy scale1 GJ = 1000 MJ = 278 kWhElectricity consumption average domestic household3300 kWh/y = 12 GJ/y                ...
1. BRE                                          E                                                    VENTILATION          ...
1. BRE                                          E                                                    VENTILATION          ...
1. BRE                                          E                                                    VENTILATION          ...
1. BRE                                          E                                                    VENTILATION          ...
1. BRE                                          E                                                    VENTILATION          ...
1. BRE                                          E                                                    VENTILATION          ...
1. BRE                                          E                                                    VENTILATION          ...
BRE | BalancePrimary energy consumption            2935 GJAvoided energy consumption (nEPus)    - 637 GJEnergy production ...
BRE | BalancePrimary energy consumption            2935 GJAvoided energy consumption (nEPus)    - 637 GJEnergy production ...
BRE | Balance 2935 GJ                               -340 GJ3275 GJEnough to compensate for the URE and MRE?               ...
ENERGY BALANCE  2935 GJ                                     Consumption      63.5%  Tap water (27%)   Lichting (11%)    Co...
ENERGY BALANCE  2935 GJ                                     Consumption      63.5%  Tap water (27%)   Lichting (11%)    Co...
ENERGY BALANCE  2935 GJ                                     Consumption      63.5%  Tap water (27%)   Lichting (11%)    Co...
ENERGY BALANCE  2935 GJ                                     Consumption      Production      63.5%  Tap water (27%)   Lich...
ENERGY BALANCE  2935 GJ                                     Consumption      Production                     Balance      6...
ENERGY BALANCE                    MRE: 13%     BRE: 63%                %            : 24      URE                    70%  ...
ENERGY BALANCE•	 Less energy consumption                             130
ENERGY BALANCE•	 Less energy consumption•	 More efficient building services                                      131
ENERGY BALANCE•	 Less energy consumption•	 More efficient building services•	 More energy production on site              ...
ENERGY BALANCE•	 Less energy consumption•	 More efficient building services•	 More energy production on sitePV-panels:•	 2...
ENERGY BALANCEPV-panels:•	 2000 m2 = 374 mWh = 1350 GJ (240 wp/m2)•	 1748 m2 = 317 mWh = Shortage of 57 MWh               ...
ENERGY BALANCE•	 PV-panels:						 4% more efficient•	 Applied panel:				 16% efficient•	 Latest advances:			 27% efficient...
Main-questionIs it possible to transform the former taxoffice in Utrecht to an energy-neutralresidential building?        ...
Main-questionIs it possible to transform the former taxoffice in Utrecht to an energy-neutralresidential building?AnswerIt...
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Transformation zero

  1. 1. Graduation presentation2N OV Bart Pieters 4036255 EM BER 201 2 Building Technology Green Building Innovations Tutors: Ir. S. Broersma - Dr. Ir. H. Zijlstra - Ir. T. Konstantinou External examiner: Ir. W.J. Quist
  2. 2. Part 1: Introduction 2
  3. 3. Part 1: IntroductionPart 2: Design 3
  4. 4. Part 1: IntroductionPart 2: DesignPart 3: Results 4
  5. 5. Part 1 Introduction 5
  6. 6. What Is my graduation about? 6
  7. 7. 7
  8. 8. Rezoning of vacant office buildings to residential buildings 8
  9. 9. Former office building, Wageningen 9
  10. 10. 10
  11. 11. 11
  12. 12. 12
  13. 13. Former tax office, Utrecht• Gerbrandystraat 20, Utrecht;• Originally build in 1981;• Structural vacant since 2010; 13
  14. 14. Housing areaHousing area Housing area 14
  15. 15. Original drawingLow-rise (3 storeys) 15
  16. 16. Side - Entrance Entrance Original drawing Low-rise (3 storeys) 16
  17. 17. Side - Entrance Entrance Original drawing Low-rise (3 storeys) 17
  18. 18. Side - Entrance Entrance Original drawing Low-rise (3 storeys) 18
  19. 19. Original drawinghigh-rise (11 storeys) 19
  20. 20. From office towards an energy-neutral residential building 20
  21. 21. r s rte s ta a nd n ts d e S tuFrom office towards an energy-neutral residential building 21
  22. 22. From office towards an energy-neutral residential building 22
  23. 23. Why This specific topic? 23
  24. 24. 24
  25. 25. • Dutch office market 46.5 million m2 0 25
  26. 26. • Dutch office market 46.5 million m2 • Office vacancy 6.6 million m2 (14%) 0 26
  27. 27. • Dutch office market 46.5 million m2 • Office vacancy 6.6 million m2 (14%) • Healthy market 5-6 % 0 27
  28. 28. • Dutch office market 46.5 million m2 • Office vacancy 6.6 million m2 (14%) • Healthy market 5-6 % • Over supply 4.2 million m2 (9%) 0 28
  29. 29. • Dutch office market 46.5 million m2 • Office vacancy 6.6 million m2 (14%) • Healthy market 5-6 % • Over supply 4.2 million m2 (9%) • Expectancy 2020 12.2 million m2 (26%)0 29
  30. 30. • Dutch office market 46.5 million m2 • Office vacancy 6.6 million m2 (14%) • Healthy market 5-6 % • Over supply 4.2 million m2 (9%) • Expectancy 2020 12.2 million m2 (26%) • Flex working 22.2 million m2 (48%)0 30
  31. 31. 16.6 31
  32. 32. 17.716.6 5%↑ 32
  33. 33. 17.7 Housing shortage 600.00016.6 5%↑ 33
  34. 34. 34
  35. 35. 35
  36. 36. 36
  37. 37. Products 16% 31 kWh/p/d Other fossil 8% 3 kWh/p/d Warmth / Bio 7% 3 kWh/p/d 20% 39 kWh/p/d Built environ- ment 41% 39 kWh/p/d Electricity 25% 8 kWh/p/d EnergyConsumers 12% 24 kWh/p/d National 25% 23 kWh/p/d transport Natural gas 61% 26 kWh/p/d 13% 25 kWh/p/d Industry 27% 25 kWh/p/d 3% 6 kWh/p/d agriculture 7% 7 kWh/p/d 100% 94 kWh/p/d 100% 39 kWh/p/dinternationalaviation and 20% 38 kWh/p/d maritimeConversion 16% 30 kWh/p/d Losses 100% 193 kWh/p/d 37
  38. 38. Spring agreement 20082011: 25% co2 reduction2015: 50% co2 reduction2020: Energy neutral 38
  39. 39. From office towards an energy-neutral residential building 39
  40. 40. Former tax office, Utrecht? 40
  41. 41. Why the former tax office?Former tax office, Utrecht• Energy crisis 1973;• Gloomy colours;• Modular structure;• Prefabrication of elements. 41
  42. 42. Research question(How) Is it possible to transform the formertax office in Utrecht to an energy-neutralresidential building? 42
  43. 43. Research question(How) Is it possible to transform the formertax office in Utrecht to an energy-neutralresidential building?Thesis objectiveThe transformation of the former tax officein Utrecht towards an energy neutralresidential building’ 43
  44. 44. from office to energy-neutral residential building 44
  45. 45. from office to energy-neutral residential building 45
  46. 46. Energy-neutral definitionThe energy within the project boundary is equal to theamount of renewable energy that is generated withinthe project boundary (PEGO, 2009) 46
  47. 47. Energy-neutral definitionThe energy within the project boundary is equal to theamount of renewable energy that is generated withinthe project boundary (PEGO, 2009)3 energy streams 47
  48. 48. Energy-neutral definition1. Building related energy BRE: 63% 48
  49. 49. Energy-neutral definition1. Building related energy2. User related energy BRE: 63% % : 24 URE 49
  50. 50. Energy-neutral definition1. Building related energy2. User related energy3. Material related energy 13% BRE: 63% MRE: % : 24 URE 50
  51. 51. Energy-neutral definition1. Building related energy2. User related energy3. Material related energy BRE: 63% % : 24 URE 51
  52. 52. How is this objective achieved? 52
  53. 53. 1 Transformation design2 BRE - EPC ENORM - Manual calc3 URE - Greencalc+4 MRE - Greencalc+ - Manual calc5a Energy consumption (GJ)5b Energy production (GJ)6 Energy balance (GJ) 53
  54. 54. 1 Transformation design2 BRE - EPC ENORM - Manual calc3 URE - Greencalc+4 MRE - Greencalc+ - Manual calc5a Energy consumption (GJ)5b Energy production (GJ)6 Energy balance (GJ) 54
  55. 55. 1 Transformation design2 BRE - EPC ENORM - Manual calc3 URE - Greencalc+4 MRE - Greencalc+ - Manual calc5a Energy consumption (GJ)5b Energy production (GJ)6 Energy balance (GJ) 55
  56. 56. 1 Transformation design2 BRE - EPC ENORM - Manual calc3 URE - Greencalc+4 MRE - Greencalc+ - Manual calc5a Energy consumption (GJ)5b Energy production (GJ)6 Energy balance (GJ) 56
  57. 57. 1 Transformation design2 BRE - EPC ENORM - Manual calc3 URE - Greencalc+4 MRE - Greencalc+ - Manual calc5a Energy consumption (GJ)5b Energy production (GJ)6 Energy balance (GJ) 57
  58. 58. 1 Transformation design2 BRE - EPC ENORM - Manual calc3 URE - Greencalc+4 MRE - Greencalc+ - Manual calc5a Energy consumption (GJ)5b Energy production (GJ)6 Energy balance (GJ) 58
  59. 59. Part 2 Transformation design 59
  60. 60. Design aims 60
  61. 61. Design aims 61
  62. 62. Design aims 62
  63. 63. Design assumptionsProgram• Starter housings: 5330 m2• Business premises: 720 m2• Dorm rooms: 3500 m2• Communal area: 1450 m2Total: 11000 m2 63
  64. 64. Design assumptionsProgram User comfort• Starter housings: 5330 m2 • Two-sided openable• Business premises: 720 m2 windows and daylight• Dorm rooms: 3500 m2 access• Communal area: 1450 m2 • Outdoor space for every building userTotal: 11000 m2 64
  65. 65. Spatial design1. Define habitable floor area 65
  66. 66. Spatial design Problem zones stair cases stair cases deep dark areas deep dark areas sufficient daylight sufficient daylight25 2900 m2 (35%) 4800 m2 (63%) 66
  67. 67. Spatial design starter housings Program division business premises student housings Low-rise, more adjustments High-rise, less adjustments 67
  68. 68. Spatial design1. Define habitable floor area2. Increase habitable floor area 68
  69. 69. Spatial design stair cases deep dark areas sufficient daylight25 2900 m2 (35%) 4900 m2 (60%) 69
  70. 70. Spatial design + 400 m2 + 1600 m2 Original volume Extended volume 11000 m2 (15 storeys) 13000 m2 (16 storeys) 70
  71. 71. Spatial design• 13,000 m2 is a rough estimation 71
  72. 72. Spatial design• 13,000 m2 is a rough estimation• Optimized to gain floor space 72
  73. 73. Spatial design• 13,000 m2 is a rough estimation• Optimized to gain floor space• Specification required• Influenced by climate design 73
  74. 74. Climate design 74
  75. 75. Climate design 1. Thermal boundary 2. Ventilation 3. Heating / Tap water 4. Cooling 5. Energy production 75
  76. 76. Former tax office Office area Office area Office area Office area Basement 76
  77. 77. Former tax office Office area Office area Office area Office area Basement 77
  78. 78. Former tax office installation 18815+ space 18790+ insulated panel17950+ +50 Prefab concrete construction facade element +335017750+ ceiling +2250 16650+ steel window frame + insulated glass panels installation 15215+ space 15190+ insulated panel14350+ P = +50 Prefab construction concrete facade14150+ element 13050+ ceiling 78
  79. 79. 1. Thermal boundary 1 2 3 4 Description Internal element insu- External insulation Internal insulation. External insulation lation. (maintaining layer. (maintaining Box in box principle. layer. (facade removal original facade original facade) (maintaining original or displacement) facade) Maximal utilization of Maximal utilization of No use of thermal Medium use of ther- Thermal mass thermal mass, two thermal mass, two mass mal mass: facade sidede: floor, upper sidede: floor, upper beams and upper floor floor, facade floor Lower quality insula- Lower insulation Low transmision Low transmision Transmission tion by re-use of exist- values hrough internal boxes through better perfor- ing facade elements mance facade High risk at the point High- risk through Low-risk, depending Medium risk, depend- of floor-facade con- re-ruse of aluminium on the type of timber ing on the type of Cold bridges nection window frames structure. thermal bridge breaks for balconies Probability of failure Probability of failure Low Probability of Low probability of Possible threats during execution during execution failure, but no ther- failure during execut- mal mass utilization ing structure thermal boundary 79
  80. 80. 1. Thermal boundary OUTSIDE ATRIUM Thermal mass 80
  81. 81. 1. Thermal boundary OUTSIDE ATRIUMwinter solargain 81
  82. 82. 2. Ventilation 82
  83. 83. 2. Ventilation OUTSIDE ATRIUM Natural air supply 83
  84. 84. 84
  85. 85. 2. Ventilation OUTSIDE ATRIUM Extended living room 85
  86. 86. 2. Ventilation OUTSIDE ATRIUM bypass 86
  87. 87. 2. VentilationFormer tax Office Transformation zero 87
  88. 88. 88
  89. 89. 2. Ventilation 89
  90. 90. 2. Ventilation 40% reduction 90
  91. 91. 2. Ventilation 91
  92. 92. 2. Ventilation 92
  93. 93. 4. Heating - Cooling - Tap water Dual pass Heat exchanger Dual pass Heat exchanger Dual pass Heat exchanger Dual pass Heat exchanger Heat pump 93
  94. 94. 70˚C 40˚C HT-CV HT-CV OUT IN 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN flue gas outlet condenser C1 HEAT C2 PUMP evaporatorGASENGINEGas 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT SEASONAL THERMAL STORE 94
  95. 95. 5. Energy production 95
  96. 96. 5. Energy productionPV panels Solar glass PV-T panelsType: ZEN power cp Type: Optisol screen Type: Volther hybridLocation: Roof low-rise Location: Conservatories Location: Roof high-rise 96
  97. 97. Electrical energy1205 GJThermal energy1461 GJ 97
  98. 98. 12 12 94m2 7200 53m2 11 Unit11 11 19m2 19m2 7200 55m2 46m2 19m2 19m210 10 19m2 19m2 51m2 Atrium 7200 A 52m2 A 19m2 19m209 9 Office --.-- 19m2 7200 42m2 52m2 56m 2 55m2 19m208 8 Kitchen 19m2 19m2 7200 48m2 Sanitary 17m207 7 Sanitary 3600 17m2 Hall06 6 75600 56m2 56m2 51m2 7200 60m2 Office 55m2 Kitchen 17m2 19m205 5 Starter 19m2 19m2 53m2 56m2 house 47m 2 7200 53m2 Office Atrium 42m2 19m2 19m2 8 Unit04 4 --.-- Dorm room Atrium Office 19m2 19m2 7200 42m2 46m2 Atrium 19m2 19m2 56m2 53m2 56m203 3 Office 47m2 42m2 7200 57m2 98m202 2 7200 53m2 53m2 56m2 First floor Thirteenth floor01 1 A B C D E F G H I J K L 74400 19200 7200 7200 7200 4800 7200 7200 7200 4800 7200 7200 7200 7200 4800 7200 A B C D E F G H K L M N G H K L 98
  99. 99. 12 11 10A A 9 8 7 6 5 4 --.-- 3 2 1 A B C D E F G H I J K L 99
  100. 100. Toilet 1.24 m2 Bath room 1.51 m2 5.75 m2 Living room 28.48 m2Bed room10.3 m2 100
  101. 101. Final program Low-rise (4 storeys): 7000 m2 High-rise (12 storeys): 6600 m2 Total: 13600 m2 101
  102. 102. Former tax Office Transformation zero 102
  103. 103. 103
  104. 104. 104
  105. 105. 105
  106. 106. Office area 01 106
  107. 107. +9550 Balcony +8250 Living Room +7250 +4950 ConservatoryOffice area Living Room +3650 +3350 7200 01 01 107
  108. 108. Part 3 Energy balance Results 108
  109. 109. 1. BRE2. URE3. MRE Energy Balance (GJ) 109
  110. 110. Energy scale1 GJ 110
  111. 111. Energy scale1 GJ = 1000 MJ 111
  112. 112. Energy scale1 GJ = 1000 MJ = 278 kWh 112
  113. 113. Energy scale1 GJ = 1000 MJ = 278 kWhElectricity consumption average domestic household3300 kWh/y = 12 GJ/y 113
  114. 114. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 114
  115. 115. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 115
  116. 116. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 116
  117. 117. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 117
  118. 118. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 118
  119. 119. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 119
  120. 120. 1. BRE E VENTILATION 390,037 MJ E LIGHTING 313,344 MJ H E TAP WATER 1,294,513 MJ 11,820 MJ E HEATING H 1,670,762 MJ 467,439 MJ LT-CV / HT-CV C E COOLING 357,512 MJ 62,669e MJ Tap water 70˚C 40˚C HT-CV HT-CV OUT IN Dual pass exchanger 12˚C 40˚C 35˚C 21˚C LT-CV LT-CV LT-CV LT-CV OUT OUT IN IN floor heating/cooling 70˚C 40˚C 12˚C 70˚C 40˚C 21˚C LT-CV LT-CV LT-CV LT-CV LT-CV LT-CV OUT IN OUT OUT IN IN flue gas outlet THERM-PANELS 307,047 MJ H 1,460,870 MJ 946,989 MJ condenser PV-PANELS E 1,204,526 MJ C1 HEAT C2 PUMP evaporator GAS ENGINE 12˚C 12˚C 6˚C 21˚C STS STS STS STS IN IN UIT UIT Avoided use Surplus Electircity Gas SEASONAL THERMAL STORE 636,733 MJ 2,331,071 MJ 1,163,539 MJ 1,671,696 MJ Electricity export Heat Cold Thermal export 897,479 MJ 1,353,394 MJ 80,198 MJ 80,198 MJ 120
  121. 121. BRE | BalancePrimary energy consumption 2935 GJAvoided energy consumption (nEPus) - 637 GJEnergy production - uptake (EPus) - 307 GJEnergy production - export (EPexp) - 2331 GJEnergy performance (EPtot) - 340 GJSpecific EP per m2 (13600 m2) -25 GJ 121
  122. 122. BRE | BalancePrimary energy consumption 2935 GJAvoided energy consumption (nEPus) - 637 GJEnergy production - uptake (EPus) - 307 GJEnergy production - export (EPexp) - 2331 GJEnergy performance (EPtot) - 340 GJSpecific EP per m2 (13600 m2) -25 GJEPC -0.07 MJEPC-requirement 0.6 MJ 122
  123. 123. BRE | Balance 2935 GJ -340 GJ3275 GJEnough to compensate for the URE and MRE? 123
  124. 124. ENERGY BALANCE 2935 GJ Consumption 63.5% Tap water (27%) Lichting (11%) Cooling (6%) Ventilation (13%) 1094 GJ 1347 GJ 23.7% Water (8%) 592 GJ 12.8% Heating (43%) Appliances (92%) Interior (2%) -307 GJ Installations (16%) Roofs (19%) -637 GJ Floors (20%) Partitions (15%) Facade (28%) -2331 GJ 124
  125. 125. ENERGY BALANCE 2935 GJ Consumption 63.5% Tap water (27%) Lichting (11%) Cooling (6%) Ventilation (13%) 1094 GJ 1347 GJ 23.7% Water (8%) 592 GJ 12.8% Heating (43%) Appliances (92%) Interior (2%) -307 GJ Installations (16%) Roofs (19%) -637 GJ Floors (20%) Partitions (15%) Facade (28%) -2331 GJ 125
  126. 126. ENERGY BALANCE 2935 GJ Consumption 63.5% Tap water (27%) Lichting (11%) Cooling (6%) Ventilation (13%) 1094 GJ 1347 GJ 23.7% Water (8%) 592 GJ 12.8% Heating (43%) Appliances (92%) Interior (2%) -307 GJ Installations (16%) Roofs (19%) -637 GJ Floors (20%) Partitions (15%) Facade (28%) -2331 GJ 126
  127. 127. ENERGY BALANCE 2935 GJ Consumption Production 63.5% Tap water (27%) Lichting (11%) Cooling (6%) Ventilation (13%) 1094 GJ 1347 GJ 23.7% Water (8%) 592 GJ 12.8% Heating (43%) Appliances (92%) Interior (2%) -307 GJ Installations (16%) Roofs (19%) -637 GJ Floors (20%) Partitions (15%) Facade (28%) -2331 GJ 127
  128. 128. ENERGY BALANCE 2935 GJ Consumption Production Balance 63.5% Tap water (27%) Lichting (11%) Cooling (6%) Ventilation (13%) 1094 GJ 1347 GJ 23.7% Water (8%) 592 GJ 12.8% Heating (43%) Appliances (92%) Interior (2%) -307 GJ Installations (16%) Roofs (19%) -637 GJ Floors (20%) Partitions (15%) Facade (28%) -2331 GJ 128
  129. 129. ENERGY BALANCE MRE: 13% BRE: 63% % : 24 URE 70% Energy Ne ut r al How to bridge 30% energy shortage 129
  130. 130. ENERGY BALANCE• Less energy consumption 130
  131. 131. ENERGY BALANCE• Less energy consumption• More efficient building services 131
  132. 132. ENERGY BALANCE• Less energy consumption• More efficient building services• More energy production on site 132
  133. 133. ENERGY BALANCE• Less energy consumption• More efficient building services• More energy production on sitePV-panels:• 2000 m2 = 374 MWh = 1350 GJ (240 wp/m2) 133
  134. 134. ENERGY BALANCEPV-panels:• 2000 m2 = 374 mWh = 1350 GJ (240 wp/m2)• 1748 m2 = 317 mWh = Shortage of 57 MWh 134
  135. 135. ENERGY BALANCE• PV-panels: 4% more efficient• Applied panel: 16% efficient• Latest advances: 27% efficient• Not yet available for commercial use 135
  136. 136. Main-questionIs it possible to transform the former taxoffice in Utrecht to an energy-neutralresidential building? 136
  137. 137. Main-questionIs it possible to transform the former taxoffice in Utrecht to an energy-neutralresidential building?AnswerIt is not yet possible if all energy streamsare included, but future improvements intechnology should make it possible 137

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