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Introduction  The   primary   aim   of   this   report   is   to   give   the   building   owner   information   about   the  performance   of   the   existing   mechanical   and   electrical   systems   and   to   compare   the  commercially  available  solar  shading  systems  presently  available  in  Malaysia,  together  with  a  tabulation  of  each  systems  ability  to  save  energy  and  cut  operating  costs.    

Energy  usage  was   collected  over  a  period  of   six  months  using  data   loggers’  monitoring  an  existing  trial  SolaVeil  installation  and  has  been  used  to  assess  the  energy  savings  potential  of  the   building.   Several   Energy   Performance   Indices   (EPI)   were   defined   utilizing  MS   1525:2007  “Code  Of  Practice  on  Energy  Efficiency  and  Use  of  Renewable  Energy  for  Non-­‐Residential  Buildings”  and  used  to  compare  the  energy  and  environmental  performance  of  the  building.  The  current  baseline  of  Energy  Utilization  Indices  (EUI)  and  Carbon  Emission  Index  (CEI)  was  calculated  as  well  as  the  proposed  new  improved  indices.      The   existing   SolaVeil   installation   consists   of   two   separate   glazing   units   each   containing  (14m2)   fourteen  square  meters  of  glass.    The   first  window  faces  southeast  and  the  second  window  faces  southwest.  Each  window  is  located  at  an  elevation  of  (52m)  fifty-­‐two  meters.      Four  data   loggers  where  used  on  each  window.  A   combination   temperature  and  humidity  logger  (Hioki  3631-­‐20)  and  a  lux  meter  (Hioki  3640-­‐20)  were  place  internally  and  externally  to  each  window.      Data   was   recorded   over   a   period   of   six   months   and   collected   weekly   and   uploaded   to   a  computer  using  a  Hioki  communications  base.  The  data  was  analyzed  using  the  proprietary  Hioki   software   and   exported   in   Microsoft   excel   format   for   using   with   other   simulation  software.      The  collected  data  and  existing  energy  bills  have  been  used  to  calculate  the  potential  results  that  can  be  expected  if  the  product  is  applied  to  the  existing  building.    Building  Operating  Characteristics;  the  building   is   located   in  Johor  Bahru,  Malaysia  and  the  total   built-­‐up   area   under   consideration   is   approximately   32,256m2   and   the   building   is  orientated  with  the  main  entrance  facing  south.      The  building  functions  as  corporate  offices  and  has  an  occupancy  level  of  approximately  two  hundred   and   ninety   five   (295)   persons   per   floor,   with   a   total   of   seven   (7)   floors   under  consideration.   The   building   operates   from   7:45am   to   5:45pm   Monday   to   Friday,   with  occasional  occupancy  on  weekends.      Each  floor  consists  of  a  central  elevator  core  and  two  (2)  open  plan  offices  on  each  elevation  totalling  five  hundred  and  seventy  six  (576)  square  metres  each,  with  a  maximum  occupancy  rate  of  fifty  (50)  persons.    

 

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Energy  Model  Four  (4)  separate  solar  shading  systems  were  modelled  and  are  referenced  as  follows;  ID  126  –  Conventional  Roller  Blinds  ID  127  –  Vertical  Window  Blinds  ID  128  –  Venetian  Blinds  ID  129  –  SolaVeil    Figure  1.0  –  Annual  Energy  Consumption  (MJ/m2)  

   Figure  2.0  –  Monthly  Energy  Consumption  (MJ/m2)  

 Figure  3.0  –  Monthly  Heat  Gain  (MJ/m2)    

                       

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Figure  4.0  –  Peak  Energy  Demand  (W/m2)                          

 Figure  5.0  –  Daylight  (Lux)  

   Figure  6.0  –  Annual  CO2  Emissions  (kg/m2)  

                       

Conclusion  Based  on  the  aforementioned  energy  modeling,  the  use  of  SolaVeil  as  an  alternative  to  currently  used  conventional  vertical  window  blinds  would  result  in  a  reduction  in  annual  cooling  of  24.88%  or  113.48  MJ/m2    

 

*Calculation  (One  Office  Block  is  576m  x  113.48  MJ/m2  =  65,364.48  MJ)    (8  Office  Blocks  x  7  Floors  =  56)    (56  x  65,364.48  MJ  =  3,660,384  MJ/Year)    At  0.063  Sen  Malaysia  per  MJ,  this  equates  to  a  total  annual  saving  of  Two  Hundred  and  Thirty  Three  Thousand  Two  Hundred  and  Three  (RM  233,203.00)  Ringgit  Malaysia  Per  Annum.    Total  Energy  savings  as  a  result  in  reduction  of  equipment  usage  would  be  35.71%  or  32.91MJ/m2  

 

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This  equates  to  a  total  annual  saving  of  Sixty  Six  Thousand  Eight  Hundred  and  Seventy  Seven  (RM  66,877.00)  Ringgit  Malaysia  Per  Annum.    Total  Energy  savings  as  a  result  in  reduction  of  equipment  usage  would  be  82.42%  or  100.07  MJ/m2  

 This  equates  to  a  total  annual  saving  of  Two  Hundred  and  Three  Thousand  Three  Hundred  and  Fifty  Five  (RM  203,355.00)  Ringgit  Malaysia  Per  Annum.    The  total  accumulated  savings  equate  to  Five  Hundred  and  Three  Thousand,  Four  Hundred  and  Thirty  Five  (RM  503,435.00)  Ringgit  Malaysia  Per  Annum.   (165,549.17 USD) (105,538.71 GBP) (12,703,136.37 JPY)