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2007_1015_Packet
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2007_1015_Packet
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Roseville City Council
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Council Agenda/Packets
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Roseville Skating Center and City Hall <br />Feasibility Study September 23, 2007 <br />+-,x� <br />�fs� <br />z: � �-r. � <br />� <br />,�ax -- <br />Energy Balance -Ice Arena 1 Banquet Hall � City Hall / Public Safety (2006) <br />� -- --...._..-•--•�----- -•--.. . . ... ._.. _. . . . .. . <br />i <br />_' i <br />— --•• -------.._ ._. . � <br />� --- � —� �-------- - - . ...- - -- � <br />— - .� . _ ..— . . . ' <br />'--�--.. �: �" ~ <br />Jan Feb Mar Apr May .lun Jul Aug 5eg bcF Nov I7ec <br />--�!—ihe€ma� �nsrgy Dissipated by ke Arena Cooling Tower •�^ Space Heating Energy Used in ke Arena & City Hall <br />I <br />�igure 18: This graph shows the annual energy ba/ance of the Ice Arena /Banquet Hall and the <br />�ity Hall / Public Safety Buildina. The estimated air conditioning load of the City Hall ! Public <br />Safety Building adds to tka� thermal energy that is dissipated to th�* outside air through the cooling <br />toweror the air cooled condenserof the air conditioning equipmenton the City Hall roof <br />There are three additional facilities on the City Hall Campus that can be integrated into a <br />common system: The Maintenance Garage and the Fire Hall that are heating dominant <br />over the year, and the Speed Skating Oval that produces a great deal of thermal energy <br />during the four winter months that it is in operation. Figure 19 shows the overall energy <br />balance if all of the buildings are connected to a common system. <br />� J7 ..Ti <br />��� � <br />YY .�OP <br />� <br />� <br />� �}!+Xfl <br />W ' <br />� . , �7�. �. <br />i <br />`�.� �Ci <br />IUC.�L�O ." <br />� <br />s - <br />� <br />Energy Balance ofAll City Hall Campus Buildings(2006) <br />"__ ' 'F" '_""_ <br />-- -•• r '- <br />- �� ��= �= - �� � � <br />` . ���� ��... - ' � �y . <br />� f , <br />�` ' '_' _ '_' "__ F "—_' � � '_ ' <br />' " "'��. <br />_.. . <br />. . .__. .. �±7•-- - . . . , . ....---•- -- ----- <br />Jan Feb Y�F Apr May .iun Jul Aug Sep Oct Nw �ec <br />+Thermal Energy From Ice plus Electrical Energy � Energy Used in All Campus Buildings <br />Figure 19: This graph ilfustrates the fofal amount of thermal energy required by all the facilities on <br />the City Hall Campus compared to the amount of thermal energy currently rejected to the outdoor <br />air thr'augh the cooling tower of the !ce Arena and the Speed Skating Oval <br />Based on the current energy consumption provided by the City of Roseville and Xcel <br />Energy, the estimated energy consumed by the buildings on an annual basis is <br />Geo-Xergy Systems Page 18 of 33 <br />
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