Advanced Low Cost and Compact Utility Dry Cooling System

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0009590
Agency Tracking Number: 211606
Amount: $999,651.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: 12d
Solicitation Number: DE-FOA-0001019
Timeline
Solicitation Year: 2014
Award Year: 2014
Award Start Date (Proposal Award Date): 2014-04-08
Award End Date (Contract End Date): 2016-04-07
Small Business Information
244 Sobrante Way, Sunnyvale, CA, 94086-4087
DUNS: 77-008554
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Kelly
 Dr.
 (408) 328-8311
 john@altextech.com
Business Contact
 Alexander Kelly
Title: Mr.
Phone: (408) 328-8311
Email: alex@altextech.com
Research Institution
 Stub
Abstract
Utilizing a dry cooling system for power plant condensers can reduce cooling system water need by over 90%, versus a wet cooling system, thereby reducing permitting and associated water use problems. However, by shifting from a wet to a dry cooling system, the volume, weight and cost of the cooling system are substantially increased. To realize the water use reduction benefits of dry cooling, lower cost dry cooling condensers are needed. The proposer has developed a highly efficient condenser heat exchanger technology that increases the performance of air cooled condensers, reducing condenser volume and weight by 63% and 65%, respectively, while also reducing fan power requirements by 52% and achieving the same heat transfer as competing technologies. These characteristics make the technology more economically competitive with classical water based approaches, and will allow utilities to meet constraints on water use, at an affordable cost. Condenser heat transfer and pressure drop models were developed and utilized to design full scale and test article condensers that have optimal performance, size, weight and cost. A subscale condenser test article was then manufactured and tested and test results showed volume reductions of 63% and pressure drop reductions of 52%, versus conventional dry cooling condensers. These advantages result in a 43% to 48% reduction in condenser total cost, versus conventional dry condensers. Under the Phase II project, a prototype partial condenser panel of 400 kWt capacity will be manufactured and tested, under simulated operational conditions, to demonstrate the technology. In addition to showing that the technology has better heat transfer and pressure drop characteristics than conventional dry cooling condensers, economic analyses will be used to show that costs are substantially lower. Lastly, a transition plan will be created to guide the subsequent commercialization of the technology. Commercial Applications and OtherBenefits: Given the performance and cost advantages of the technology, the commercial opportunity for applying the technology to the utility industry is large, and with the cost advantage the proposed concept will save $29 billion per year, versus conventional dry condenser technology.

* Information listed above is at the time of submission. *

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