Building automation â impact on energy efficiency - Siemens ...
Building automation â impact on energy efficiency - Siemens ...
Building automation â impact on energy efficiency - Siemens ...
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4.5.2 Detailed BAC <strong>efficiency</strong> factor for DHW<br />
The BAC <strong>efficiency</strong> factors for DHW systems are calculated based <strong>on</strong> the following<br />
c<strong>on</strong>diti<strong>on</strong>s:<br />
• Operati<strong>on</strong> timer; the time when the DHW storage tank is charged and maintained<br />
at the setpoint temperature<br />
• Mean DHW storage tank temperature<br />
Detailed factors are accounting for the BAC <str<strong>on</strong>g>impact</str<strong>on</strong>g> <strong>on</strong> <strong>energy</strong> performance of<br />
DHW systems by covering DHW as a single functi<strong>on</strong>ality.<br />
Detailed BACS <strong>efficiency</strong> factors<br />
N<strong>on</strong>-residential building types D C B A<br />
N<strong>on</strong> <strong>energy</strong><br />
efficient<br />
Standard<br />
(reference)<br />
Advanced<br />
<strong>energy</strong><br />
<strong>efficiency</strong><br />
High <strong>energy</strong><br />
<strong>efficiency</strong><br />
Offices<br />
Lecture halls<br />
Educati<strong>on</strong>al buildings (schools)<br />
Hospitals<br />
Hotels<br />
Restaurants<br />
Wholesale and retail buildings<br />
Other types:<br />
• Sport facilities<br />
• Storage<br />
• Industrial facilities<br />
• etc.<br />
f BACS,DHW f BACS,DHW f BACS,DHW f BACS,DHW<br />
1.11 1.00 0.90 0.80<br />
Detailed BACS <strong>efficiency</strong> factors<br />
Residential building types D C B A<br />
N<strong>on</strong> <strong>energy</strong><br />
efficient<br />
Standard<br />
(reference)<br />
Advanced<br />
<strong>energy</strong><br />
<strong>efficiency</strong><br />
High <strong>energy</strong><br />
<strong>efficiency</strong><br />
• Single family dwellings<br />
• Multi family houses<br />
• Apartment houses<br />
• Other residential or residential-like<br />
buildings<br />
f BACS,DHW f BACS,DHW f BACS,DHW f BACS,DHW<br />
1.11 1.00 0.90 0.80<br />
91
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