SPECIAL NOTICE
Y -- CHILLER ON TEDAC PROJECT 2
- Notice Date
- 3/8/2010
- Notice Type
- Special Notice
- NAICS
- 236220
— Commercial and Institutional Building Construction
- Contracting Office
- USACE District, Mobile, P. O. Box 2288, 109 Saint Joseph Street (zip 36602), Mobile, AL 36628-0001
- ZIP Code
- 36628-0001
- Solicitation Number
- W91278-10-L-3010
- Response Due
- 2/22/2010
- Archive Date
- 6/6/2010
- Point of Contact
- Terricka D. Leonard, 251-441-6500
- E-Mail Address
-
USACE District, Mobile
(terricka.d.leonard@usace.army.mil)
- Small Business Set-Aside
- N/A
- Description
- This proposed contract action is for supplies or services for which the Government intends to solicit and negotiate with only one source under the authority of FAR 6.302. Interested persons may identify their interest and capability to respond to the requirement. This notice is not a request for competitive proposals, however, all information received within fifteen days after publication of this synopsis will be considered by the Government. A determination by the Government not to compete this proposed requirement based upon responses to this notice is solely within the discretion of the Government. The U.S. Army Corps of Engineers, Mobile District, is conducting a market survey to identify sources for liquid chillers that are 100% compatible with those as designed by York by Johnson Controls of York, PA. The Mobile District Corps of Engineers is currently designing the Two Step Turbine Engine Dry Air Capability Project (TEDAC), Phase 2 at Arnold AFB, TN. TEDAC Phase 2 requires the demolition and replacement of two existing low temperature refrigeration systems (total capacity approximately 6000 tons of refrigeration) supplying refrigerated brine to a 42 foot diameter by 150 foot long cooler used to dry process air. The process air is used for jet engine testing. The existing chiller systems, designated RC 13 and RC 14, are multistage centrifugal units supplied by Carrier. Each of the two existing refrigeration systems utilize liquid chillers containing three compressors each for a total of six compressors. The existing chillers use R-12 refrigerant with trichloroethylene as the secondary brine. RC13 cools a maximum flow rate of 1200 lb/s of air at 40 psia and 38 degrees Fahrenheit saturated to 0 degrees Fahrenheit saturated. RC 14 cools the same air flow at the same pressure from 0 to -24 degrees Fahrenheit saturated. The nominal capacity of RC 13 is 3800 tons at an installed horsepower of 8500 hp (two low stage compressors at 2000 hp each and one high stage at 4500 hp). The capacity of RC 14 is 2200 tons at an installed horsepower of 7000 hp (two low stages at 1500 hp each and one high stage at 4000 hp). The nominal performance of RC13 and RC14 are as follows: RC 13Dynalene HC 40 flow rate = 12,000 gpm Chiller evaporator inlet temp = -6.5 degrees Fahrenheit Chiller evaporator outlet temp = -15 degrees Fahrenheit Condenser water inlet temp = 80 degrees Fahrenheit Condenser water outlet temp = 95 degrees Fahrenheit maximum Condenser water flow rate = tbd RC 14 Dynalene HC 40 flow rate = 16,000 gpm Chiller evaporator inlet temp = -31.3 degrees Fahrenheit Chiller evaporator outlet temp = -35 degrees Fahrenheit Condenser water inlet temp = 80 degrees Fahrenheit Condenser water outlet temp = 95 degrees Fahrenheit maximum Condenser water flow rate = tbd Condenser water design temperature is 80 degrees Fahrenheit and ranges from 40 to 90 degrees Fahrenheit. Condenser water design pressure range is 100 psig and ranges from 80 to 105 psig. Electrical power for the chillers will be 6900 VAC and 60 Hz. The new brine chillers are required to utilize no more than two compressors with a total of four compressors for the entire replacement refrigeration systems. The new chillers shall utilize R-134a or R-507a refrigerant and Dynalene HC-40 will be the secondary brine. Each chiller shall be designed such that if one compressor of a single chiller goes out of service at least 50% of the total combined chiller capacity of both chillers shall be maintained. 50% capacity is designated as the refrigeration demand to provide -24 degree F leaving air temperature across a coil bank at an airflow of 600 lb/sec. The existing chiller system consisting of six compressors is maintenance intensive and costly. Through limiting the number of compressors in the new refrigeration systems to four in lieu of the existing six compressors, system maintenance costs may be reduced by 33%. Brine chillers must meet the requirements below for consideration as a substitute for those as designed by York by Johnson Controls of York, PA. 1) Each new brine chiller shall contain no more than two compressors. 2) Brine chillers shall meet or exceed the requirements set forth in the attached specification, 23 64 10, Brine Chillers. 3) Refrigerant shall be either R-134a or R-507a refrigerant. This request is not a request to be placed on a solicitation mailing list. It is for information only and is not a request for proposal (RFP) or announcement of a solicitation. The purpose of this Sources Sought request is to obtain sources for brine chillers endorsed by each manufacturer. If no sources exist that can fully meet the requirements contained in this request (100%), then it is the Governments intent to specify York by Johnson Controls brine chillers for use in the Two Step Turbine Engine Dry Air Capability Project (TEDAC), Phase 2 and/or other facilities. Firms interested in being considered shall provide manufacturers name, product data and written statement of compatibility. The written statement of compatibility shall include manufacturer backup information and support documentation. The Government will not pay for any material provided in response to this synopsis nor return the data provided. Costs to test and evaluate acceptable brines shall not be the responsibility of the Government. The results of this synopsis will be considered to be in effect for a period of one year from the date of publication of this notice. Responses must be received fifteen (15) days after publication of this notice. Responses should be addressed to: U.S. Army Corps of Engineers, Mobile, Attn: Shirley West CESAM-CT-C, P.O. Box 2288, Mobile, AL 36628-0001, faxed to 251-441-6510 Attn: Shirley West or emailed to Shirley.A.West@usace.army.mil Contracting Office Address: US Army Engineer District, Mobile, P. O. Box 2288, 109 Saint Joseph Street (zip 36602), Mobile, AL 36628-0001
- Web Link
-
FBO.gov Permalink
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- Record
- SN02085502-W 20100310/100308234333-06e15eab0273a2351f52c2002e148e83 (fbodaily.com)
- Source
-
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