2005_0509_Packet - Laserfiche WebLink

Home

Cost Estimates for Secondary Refrigerant Improvements Table 4. Cost Estimates for �Ill Item Remove and dispose of contaminated calcium chlaride mixture All other improvements Total Estimated Construction Costs Estimate, Desi n, and Construction Contin enc, Total Estimated Construction Costs En ineerin Le al and Administrative 15% * Total Estimated Pro'ect Costs � See 0xp�at]ailOn in Coat ESlttl]� section of ihe report. STEP 3— DESIGN Cnst � Owner $60,000 $60,000 $12,000 $72,000 $10.800 This step will be completed once the full evaluation of the chiller renavatian/rep[ace�ncnt options is completed. STEP 4 — CONSTRUCTION This step will be completed following the design of the improvements are complete STEP 5- EVALUATE THE OPTION OF A PLATE ANI) FRAME CH�LLERTYPE SYSTEM General This option was evaluated mainly to deter�nine the feasibility of providing redundancy in the system by replacing the one shell and tube type chiller with two plate and frat�e type chiller packages. There is no measurable difference in efficie�icy between a plate and fra�t�e type chiller system and the existing shell and tube type chiller system. The advantages of a plate and fraE�e type cl�iller system are as follows I, Reduttda�7cy. If there are problerns with one plate and frame system there will be a second system far partial backup. However, since each plate and frame system would be sized far 50% of the total capacity the system would only be capable of operating an one plate and frame system during tl�e colder days of the year. 2. Less Space Requiret� The plate and frame systeins are mare compact and generally take up less room than a shell and tube type chiller system. The size of each plate and frame package is approximately 12' x 5' wide. With this option the existing high pressure starage receiver would be replaced with a vertical receiver located 'm the corner of the mechanical room.