appendix a3_presentation of energy performance

Richard

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APPENDIX A3 PRESENTATION ON ENERGY PERFORMANCE OF THE OKHTA CENTER DOUBLE SKIN FACADE

Presentation on Energy Performance and Requirements

Okhta Centre,Okhta Centre, St. PetersburgSt. Petersburg

Tower FacadeTower Facade-- October 2010October 2010


PART IPART IPART IPART I

� THE FOLLOWING ANALYSIS WERE DONE TO THE FOLLOWING ANALYSIS WERE DONE TO THE FOLLOWING ANALYSIS WERE DONE TO THE FOLLOWING ANALYSIS WERE DONE TO VERIFY THE FAÇADE ENERGY PERFORMANCE VERIFY THE FAÇADE ENERGY PERFORMANCE VERIFY THE FAÇADE ENERGY PERFORMANCE VERIFY THE FAÇADE ENERGY PERFORMANCE BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT BASED ON CURRENT PROEKT (PROJECT STAGE CONCEPT) DESIGN DOCUMENTS.STAGE CONCEPT) DESIGN DOCUMENTS.STAGE CONCEPT) DESIGN DOCUMENTS.STAGE CONCEPT) DESIGN DOCUMENTS.

� TO PROVIDE ADDITIONAL INFORMATION TO PROVIDE ADDITIONAL INFORMATION TO PROVIDE ADDITIONAL INFORMATION TO PROVIDE ADDITIONAL INFORMATION AND ANSWERS TO SOME QUESTIONS WHICH AND ANSWERS TO SOME QUESTIONS WHICH AND ANSWERS TO SOME QUESTIONS WHICH AND ANSWERS TO SOME QUESTIONS WHICH WERE NOT PREVIOUSLY CLEAR OR WERE NOT PREVIOUSLY CLEAR OR WERE NOT PREVIOUSLY CLEAR OR WERE NOT PREVIOUSLY CLEAR OR ANSWERED DURING THE DESIGN REVIEW.ANSWERED DURING THE DESIGN REVIEW.ANSWERED DURING THE DESIGN REVIEW.ANSWERED DURING THE DESIGN REVIEW.


� ANALYSIS FOLLOWS WHAT WAS ANALYSIS FOLLOWS WHAT WAS ANALYSIS FOLLOWS WHAT WAS ANALYSIS FOLLOWS WHAT WAS PREVIOUSLY ESTABLISHED AND YET PREVIOUSLY ESTABLISHED AND YET PREVIOUSLY ESTABLISHED AND YET PREVIOUSLY ESTABLISHED AND YET WILL PROVIDE INFORMATION THAT WILL PROVIDE INFORMATION THAT WILL PROVIDE INFORMATION THAT WILL PROVIDE INFORMATION THAT WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE WILL BE A GUIDE TO THE NEXT STAGE OF THE DESIGN WORKS.OF THE DESIGN WORKS.OF THE DESIGN WORKS.OF THE DESIGN WORKS.


WHAT HAS BEEN CONSIDERED IN THIS WHAT HAS BEEN CONSIDERED IN THIS WHAT HAS BEEN CONSIDERED IN THIS WHAT HAS BEEN CONSIDERED IN THIS CURRENT CLIMATE ANALYSIS?CURRENT CLIMATE ANALYSIS?CURRENT CLIMATE ANALYSIS?CURRENT CLIMATE ANALYSIS?


�25 YEAR AVERAGE DAILY WIND SPEED 25 YEAR AVERAGE DAILY WIND SPEED 25 YEAR AVERAGE DAILY WIND SPEED 25 YEAR AVERAGE DAILY WIND SPEED


� SUN EXPOSURE AND SHADESUN EXPOSURE AND SHADESUN EXPOSURE AND SHADESUN EXPOSURE AND SHADE


� 25 YEAR AVERAGE TEMPERATURE, SOLAR HEAT 25 YEAR AVERAGE TEMPERATURE, SOLAR HEAT 25 YEAR AVERAGE TEMPERATURE, SOLAR HEAT 25 YEAR AVERAGE TEMPERATURE, SOLAR HEAT GAIN AND CLOUD COVERGAIN AND CLOUD COVERGAIN AND CLOUD COVERGAIN AND CLOUD COVER


� SUMMARIZING TH E ABOVE, SOME OF THE SUMMARIZING TH E ABOVE, SOME OF THE SUMMARIZING TH E ABOVE, SOME OF THE SUMMARIZING TH E ABOVE, SOME OF THE RESULTS OF THE ANALYSIS SPREADSHEETS WERE RESULTS OF THE ANALYSIS SPREADSHEETS WERE RESULTS OF THE ANALYSIS SPREADSHEETS WERE RESULTS OF THE ANALYSIS SPREADSHEETS WERE PROVIDED BELOWPROVIDED BELOWPROVIDED BELOWPROVIDED BELOW


� SUMMARY OF HEATING REQUIREMENTS IN THE SUMMARY OF HEATING REQUIREMENTS IN THE SUMMARY OF HEATING REQUIREMENTS IN THE SUMMARY OF HEATING REQUIREMENTS IN THE BUFFER ZONES FROM L6 TO L72BUFFER ZONES FROM L6 TO L72BUFFER ZONES FROM L6 TO L72BUFFER ZONES FROM L6 TO L72


� SUMMARY OF COOLING REQUIREMENTS IN THE SUMMARY OF COOLING REQUIREMENTS IN THE SUMMARY OF COOLING REQUIREMENTS IN THE SUMMARY OF COOLING REQUIREMENTS IN THE OFFICES FROM L6 TO L72OFFICES FROM L6 TO L72OFFICES FROM L6 TO L72OFFICES FROM L6 TO L72


� TOTAL HEATING/COOLING REQUIREMENTS IN TOTAL HEATING/COOLING REQUIREMENTS IN TOTAL HEATING/COOLING REQUIREMENTS IN TOTAL HEATING/COOLING REQUIREMENTS IN THE OFFICES FROM L6 TO L72THE OFFICES FROM L6 TO L72THE OFFICES FROM L6 TO L72THE OFFICES FROM L6 TO L72


� SUMMARY OF HEATING/COOLING IN THE SUMMARY OF HEATING/COOLING IN THE SUMMARY OF HEATING/COOLING IN THE SUMMARY OF HEATING/COOLING IN THE ATRIUMS, L1 TO L5 AND L72 TO TOP OF TOWERATRIUMS, L1 TO L5 AND L72 TO TOP OF TOWERATRIUMS, L1 TO L5 AND L72 TO TOP OF TOWERATRIUMS, L1 TO L5 AND L72 TO TOP OF TOWER


� TOTAL HEATING/COOLING REQUIREMENTS IN TOTAL HEATING/COOLING REQUIREMENTS IN TOTAL HEATING/COOLING REQUIREMENTS IN TOTAL HEATING/COOLING REQUIREMENTS IN THE ATRIUMS (INCLUDING BUFFER ZONES), L1 THE ATRIUMS (INCLUDING BUFFER ZONES), L1 THE ATRIUMS (INCLUDING BUFFER ZONES), L1 THE ATRIUMS (INCLUDING BUFFER ZONES), L1 TO TOP OF THE TOWERTO TOP OF THE TOWERTO TOP OF THE TOWERTO TOP OF THE TOWER

� CONVERSION TO STEAM UNITS 4.1868W PER CONVERSION TO STEAM UNITS 4.1868W PER CONVERSION TO STEAM UNITS 4.1868W PER CONVERSION TO STEAM UNITS 4.1868W PER CALCALCALCALITITITIT/sec/sec/sec/sec


OBSERVATIONS BASED ON THE CURRENT OBSERVATIONS BASED ON THE CURRENT OBSERVATIONS BASED ON THE CURRENT OBSERVATIONS BASED ON THE CURRENT ANALYSIS:ANALYSIS:ANALYSIS:ANALYSIS:

�CURRENT HEATING REQUIREMENTS FOR THE CURRENT HEATING REQUIREMENTS FOR THE CURRENT HEATING REQUIREMENTS FOR THE CURRENT HEATING REQUIREMENTS FOR THE WHOLE PROJECT WAS ESTIMATED AT WHOLE PROJECT WAS ESTIMATED AT WHOLE PROJECT WAS ESTIMATED AT WHOLE PROJECT WAS ESTIMATED AT 46.18 46.18 46.18 46.18 WHOLE PROJECT WAS ESTIMATED AT WHOLE PROJECT WAS ESTIMATED AT WHOLE PROJECT WAS ESTIMATED AT WHOLE PROJECT WAS ESTIMATED AT 46.18 46.18 46.18 46.18 GCAL/hrGCAL/hrGCAL/hrGCAL/hr. (THE VALUE ABOVE WAS TAKEN FROM . (THE VALUE ABOVE WAS TAKEN FROM . (THE VALUE ABOVE WAS TAKEN FROM . (THE VALUE ABOVE WAS TAKEN FROM OKHTA CENTER WEBSITE)OKHTA CENTER WEBSITE)OKHTA CENTER WEBSITE)OKHTA CENTER WEBSITE)

�TO COMPARE WITH THE CURRENT ANALYSIS AT TO COMPARE WITH THE CURRENT ANALYSIS AT TO COMPARE WITH THE CURRENT ANALYSIS AT TO COMPARE WITH THE CURRENT ANALYSIS AT 32.122 MW/4.1868 W PER CAL/sec = 7.672 32.122 MW/4.1868 W PER CAL/sec = 7.672 32.122 MW/4.1868 W PER CAL/sec = 7.672 32.122 MW/4.1868 W PER CAL/sec = 7.672 MCAL/sec or at MCAL/sec or at MCAL/sec or at MCAL/sec or at 27.62 GCAL/hr27.62 GCAL/hr27.62 GCAL/hr27.62 GCAL/hr IN ONE DAY IN ONE DAY IN ONE DAY IN ONE DAY


� THE DOUBLE SKIN FAÇADE PROVIDES AN THE DOUBLE SKIN FAÇADE PROVIDES AN THE DOUBLE SKIN FAÇADE PROVIDES AN THE DOUBLE SKIN FAÇADE PROVIDES AN OPTION FOR THE HEATING REQUIREMENTS TO OPTION FOR THE HEATING REQUIREMENTS TO OPTION FOR THE HEATING REQUIREMENTS TO OPTION FOR THE HEATING REQUIREMENTS TO BE MANAGED IN ORDER TO OPTIMIZE THE BE MANAGED IN ORDER TO OPTIMIZE THE BE MANAGED IN ORDER TO OPTIMIZE THE BE MANAGED IN ORDER TO OPTIMIZE THE ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.ENERGY CONSUMPTION DURING COLD SEASON.

� IF OPTIMIZED, THE TOWER WILL EXPERIENCE A IF OPTIMIZED, THE TOWER WILL EXPERIENCE A IF OPTIMIZED, THE TOWER WILL EXPERIENCE A IF OPTIMIZED, THE TOWER WILL EXPERIENCE A MINIMUM OF 4 MONTHS OF COLD SEASON MINIMUM OF 4 MONTHS OF COLD SEASON MINIMUM OF 4 MONTHS OF COLD SEASON MINIMUM OF 4 MONTHS OF COLD SEASON INSTEAD OF THE NORMAL 6 MOTNHS. LESS INSTEAD OF THE NORMAL 6 MOTNHS. LESS INSTEAD OF THE NORMAL 6 MOTNHS. LESS INSTEAD OF THE NORMAL 6 MOTNHS. LESS MONTHS MEANS LESSER CONSUMPTION OF MONTHS MEANS LESSER CONSUMPTION OF MONTHS MEANS LESSER CONSUMPTION OF MONTHS MEANS LESSER CONSUMPTION OF ENERGY FROM THE ONE PROVIDED IN THE ENERGY FROM THE ONE PROVIDED IN THE ENERGY FROM THE ONE PROVIDED IN THE ENERGY FROM THE ONE PROVIDED IN THE CURRENT ANALYSIS. CURRENT ANALYSIS. CURRENT ANALYSIS. CURRENT ANALYSIS.


� IF OPTIMIZED, THE TOWER WILL REQUIRE IF OPTIMIZED, THE TOWER WILL REQUIRE IF OPTIMIZED, THE TOWER WILL REQUIRE IF OPTIMIZED, THE TOWER WILL REQUIRE COOLING TO A MINIMUM OF 6 MONTHS PER COOLING TO A MINIMUM OF 6 MONTHS PER COOLING TO A MINIMUM OF 6 MONTHS PER COOLING TO A MINIMUM OF 6 MONTHS PER YEAR ON WHERE MINIMUM ENERGY YEAR ON WHERE MINIMUM ENERGY YEAR ON WHERE MINIMUM ENERGY YEAR ON WHERE MINIMUM ENERGY CONSUMPTION WILL COME FROM THE CONSUMPTION WILL COME FROM THE CONSUMPTION WILL COME FROM THE CONSUMPTION WILL COME FROM THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE CIRCULATION OF USED AND FRESH AIR IN THE OFFICES.OFFICES.OFFICES.OFFICES.

� TO OPTIMIZE, THE NEED TO TRANSFER HEAT TO OPTIMIZE, THE NEED TO TRANSFER HEAT TO OPTIMIZE, THE NEED TO TRANSFER HEAT TO OPTIMIZE, THE NEED TO TRANSFER HEAT FROM SUN EXPOSURE (SOLAR GAIN) FROM THE FROM SUN EXPOSURE (SOLAR GAIN) FROM THE FROM SUN EXPOSURE (SOLAR GAIN) FROM THE FROM SUN EXPOSURE (SOLAR GAIN) FROM THE SOUTHERN TO THE NORTHERN SIDES TO SOUTHERN TO THE NORTHERN SIDES TO SOUTHERN TO THE NORTHERN SIDES TO SOUTHERN TO THE NORTHERN SIDES TO EQUALIZE THE TEMPERATURE IN THE BUFFER EQUALIZE THE TEMPERATURE IN THE BUFFER EQUALIZE THE TEMPERATURE IN THE BUFFER EQUALIZE THE TEMPERATURE IN THE BUFFER ZONE DURING COLD MONTHS.ZONE DURING COLD MONTHS.ZONE DURING COLD MONTHS.ZONE DURING COLD MONTHS.


� BLINDS WILL BE REQUIRED TO CONTROL BLINDS WILL BE REQUIRED TO CONTROL BLINDS WILL BE REQUIRED TO CONTROL BLINDS WILL BE REQUIRED TO CONTROL GLARE DUE TO LOW SUN ANGLE FROM THE GLARE DUE TO LOW SUN ANGLE FROM THE GLARE DUE TO LOW SUN ANGLE FROM THE GLARE DUE TO LOW SUN ANGLE FROM THE HORIZON DURING COLD MONTHS.HORIZON DURING COLD MONTHS.HORIZON DURING COLD MONTHS.HORIZON DURING COLD MONTHS.

� FURTHER ANALYSIS IS REQUIRED TO COOL FURTHER ANALYSIS IS REQUIRED TO COOL FURTHER ANALYSIS IS REQUIRED TO COOL FURTHER ANALYSIS IS REQUIRED TO COOL � FURTHER ANALYSIS IS REQUIRED TO COOL FURTHER ANALYSIS IS REQUIRED TO COOL FURTHER ANALYSIS IS REQUIRED TO COOL FURTHER ANALYSIS IS REQUIRED TO COOL DOWN THE BUFFER ZONES AT THE SEALED DOWN THE BUFFER ZONES AT THE SEALED DOWN THE BUFFER ZONES AT THE SEALED DOWN THE BUFFER ZONES AT THE SEALED BUFFER (BLAST) ZONE LEVELS OF THE TOWER BUFFER (BLAST) ZONE LEVELS OF THE TOWER BUFFER (BLAST) ZONE LEVELS OF THE TOWER BUFFER (BLAST) ZONE LEVELS OF THE TOWER FAÇADE SINCE DURING WARM SEASON THE FAÇADE SINCE DURING WARM SEASON THE FAÇADE SINCE DURING WARM SEASON THE FAÇADE SINCE DURING WARM SEASON THE ACCUMULATED TEMPERATURE IN THE BUFFER ACCUMULATED TEMPERATURE IN THE BUFFER ACCUMULATED TEMPERATURE IN THE BUFFER ACCUMULATED TEMPERATURE IN THE BUFFER ZONES WILL BE HIGH.ZONES WILL BE HIGH.ZONES WILL BE HIGH.ZONES WILL BE HIGH.


� THE AMOUNT OF AIR EXCHANGE AT SEALED THE AMOUNT OF AIR EXCHANGE AT SEALED THE AMOUNT OF AIR EXCHANGE AT SEALED THE AMOUNT OF AIR EXCHANGE AT SEALED BUFFER ZONE LEVELS WILL DETERMINE THE BUFFER ZONE LEVELS WILL DETERMINE THE BUFFER ZONE LEVELS WILL DETERMINE THE BUFFER ZONE LEVELS WILL DETERMINE THE SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.SIZE/CAPACITY OF THE AIR HANDLING UNITS.

� AT THE ATRIUM ZONES, THE ANALYSIS AT THE ATRIUM ZONES, THE ANALYSIS AT THE ATRIUM ZONES, THE ANALYSIS AT THE ATRIUM ZONES, THE ANALYSIS FOLLOWS REQUIREMENTS THAT THE FOLLOWS REQUIREMENTS THAT THE FOLLOWS REQUIREMENTS THAT THE FOLLOWS REQUIREMENTS THAT THE TEMPERATURE IS MAINTAINED AT 18ºC TEMPERATURE IS MAINTAINED AT 18ºC TEMPERATURE IS MAINTAINED AT 18ºC TEMPERATURE IS MAINTAINED AT 18ºC MINIMUM.MINIMUM.MINIMUM.MINIMUM.


RECOMMENDATIONS:RECOMMENDATIONS:RECOMMENDATIONS:RECOMMENDATIONS:

� THE ANALYSIS CONSIDERED HEATING THE THE ANALYSIS CONSIDERED HEATING THE THE ANALYSIS CONSIDERED HEATING THE THE ANALYSIS CONSIDERED HEATING THE BUFFER ZONES ONLY TO AVOID BUFFER ZONES ONLY TO AVOID BUFFER ZONES ONLY TO AVOID BUFFER ZONES ONLY TO AVOID CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF CONDENSATION AT THE INSIDE SURFACE OF THE EXTERNAL SKIN.THE EXTERNAL SKIN.THE EXTERNAL SKIN.THE EXTERNAL SKIN.

� HEATING THE BUFFER ZONES AT A MAINTAINED HEATING THE BUFFER ZONES AT A MAINTAINED HEATING THE BUFFER ZONES AT A MAINTAINED HEATING THE BUFFER ZONES AT A MAINTAINED TEMPERATURES AS REQUIRED IN GOSTs AND TEMPERATURES AS REQUIRED IN GOSTs AND TEMPERATURES AS REQUIRED IN GOSTs AND TEMPERATURES AS REQUIRED IN GOSTs AND SNiPs WILL RESULT TO COOLING CONSUMPTION SNiPs WILL RESULT TO COOLING CONSUMPTION SNiPs WILL RESULT TO COOLING CONSUMPTION SNiPs WILL RESULT TO COOLING CONSUMPTION IN THE OFFICES DURING COLD SEASON.IN THE OFFICES DURING COLD SEASON.IN THE OFFICES DURING COLD SEASON.IN THE OFFICES DURING COLD SEASON.


COMPARISON OF PERFORMANCE OF USING COMPARISON OF PERFORMANCE OF USING COMPARISON OF PERFORMANCE OF USING COMPARISON OF PERFORMANCE OF USING DOUBLE GLAZING UNITS (DGU) OVER TRIPLE DOUBLE GLAZING UNITS (DGU) OVER TRIPLE DOUBLE GLAZING UNITS (DGU) OVER TRIPLE DOUBLE GLAZING UNITS (DGU) OVER TRIPLE GLAZING UNITS (TGU).GLAZING UNITS (TGU).GLAZING UNITS (TGU).GLAZING UNITS (TGU).

� THE ANALYSIS USE THE SAME INFORMATION AS THE ANALYSIS USE THE SAME INFORMATION AS THE ANALYSIS USE THE SAME INFORMATION AS THE ANALYSIS USE THE SAME INFORMATION AS APPLIED TO THE DGU ANALYSIS FOR THE APPLIED TO THE DGU ANALYSIS FOR THE APPLIED TO THE DGU ANALYSIS FOR THE APPLIED TO THE DGU ANALYSIS FOR THE DOUBLE SKIN FAÇADE SYSTEM ABOVE.DOUBLE SKIN FAÇADE SYSTEM ABOVE.DOUBLE SKIN FAÇADE SYSTEM ABOVE.DOUBLE SKIN FAÇADE SYSTEM ABOVE.


� IN USING TGU FOR THE EXTERNAL SKIN, THE IN USING TGU FOR THE EXTERNAL SKIN, THE IN USING TGU FOR THE EXTERNAL SKIN, THE IN USING TGU FOR THE EXTERNAL SKIN, THE SECOND SKIN IS ASSUMED TO BE DELETED.SECOND SKIN IS ASSUMED TO BE DELETED.SECOND SKIN IS ASSUMED TO BE DELETED.SECOND SKIN IS ASSUMED TO BE DELETED.

� THE TEMPERATURE IN THE INTERIOR WILL BE THE TEMPERATURE IN THE INTERIOR WILL BE THE TEMPERATURE IN THE INTERIOR WILL BE THE TEMPERATURE IN THE INTERIOR WILL BE � THE TEMPERATURE IN THE INTERIOR WILL BE THE TEMPERATURE IN THE INTERIOR WILL BE THE TEMPERATURE IN THE INTERIOR WILL BE THE TEMPERATURE IN THE INTERIOR WILL BE MAINTAINED AT 21ºC AS REQUIRED IN GOSTs MAINTAINED AT 21ºC AS REQUIRED IN GOSTs MAINTAINED AT 21ºC AS REQUIRED IN GOSTs MAINTAINED AT 21ºC AS REQUIRED IN GOSTs AND SNiPs AND SNiPs AND SNiPs AND SNiPs


� PREVIOUS CONCEPTUAL WINTER OPERATIONPREVIOUS CONCEPTUAL WINTER OPERATIONPREVIOUS CONCEPTUAL WINTER OPERATIONPREVIOUS CONCEPTUAL WINTER OPERATION


� THE CURRENT ANALYSIS AGREES ON THE THE CURRENT ANALYSIS AGREES ON THE THE CURRENT ANALYSIS AGREES ON THE THE CURRENT ANALYSIS AGREES ON THE WINTER OPERATION PREVIOUSLY PROVIDED IN WINTER OPERATION PREVIOUSLY PROVIDED IN WINTER OPERATION PREVIOUSLY PROVIDED IN WINTER OPERATION PREVIOUSLY PROVIDED IN THE CONCEPT DESIGN.THE CONCEPT DESIGN.THE CONCEPT DESIGN.THE CONCEPT DESIGN.

� THE LOUVRES DISCHARGING AIR FROM THE THE LOUVRES DISCHARGING AIR FROM THE THE LOUVRES DISCHARGING AIR FROM THE THE LOUVRES DISCHARGING AIR FROM THE OFFICES WILL BE REQUIRED BUT WILL BE OFFICES WILL BE REQUIRED BUT WILL BE OFFICES WILL BE REQUIRED BUT WILL BE OFFICES WILL BE REQUIRED BUT WILL BE ATTACHED TO A DUCT FORCING HOT AIR FROM ATTACHED TO A DUCT FORCING HOT AIR FROM ATTACHED TO A DUCT FORCING HOT AIR FROM ATTACHED TO A DUCT FORCING HOT AIR FROM THE OFFICE TO THE BUFFER ZONE DURING THE OFFICE TO THE BUFFER ZONE DURING THE OFFICE TO THE BUFFER ZONE DURING THE OFFICE TO THE BUFFER ZONE DURING COOL MONTHS. PROVIDING FULL LOUVRED COOL MONTHS. PROVIDING FULL LOUVRED COOL MONTHS. PROVIDING FULL LOUVRED COOL MONTHS. PROVIDING FULL LOUVRED OPENING ON THE SECOND SKIN WILL DEFEAT OPENING ON THE SECOND SKIN WILL DEFEAT OPENING ON THE SECOND SKIN WILL DEFEAT OPENING ON THE SECOND SKIN WILL DEFEAT THE THERMAL PERFORMANCE OF THE SECOND THE THERMAL PERFORMANCE OF THE SECOND THE THERMAL PERFORMANCE OF THE SECOND THE THERMAL PERFORMANCE OF THE SECOND SKIN.SKIN.SKIN.SKIN.

appendix a3_presentation of energy performance

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