EXPERIMENTAL AND THEORETICAL INVESTIGATIONS OF NEW POWER CYCLES AND ADVANCED FALLING FILM HEAT EXCHANGERS Metadata

Title

• Main Title EXPERIMENTAL AND THEORETICAL INVESTIGATIONS OF NEW POWER CYCLES AND ADVANCED FALLING FILM HEAT EXCHANGERS

Creator

• Author: Razani, Arsalan
  Creator Type: Personal
• Author: Kim, Kwang J.
  Creator Type: Personal

Contributor

• Sponsor: United States. Department of Energy.
  Contributor Type: Organization
  Contributor Info: US Department of Energy (United States)

Publisher

• Name: National Energy Technology Laboratory (U.S.)
  Place of Publication: Pittsburgh, Pennsylvania
  Additional Info: National Energy Technology Lab., Pittsburgh, PA (United States)
• Name: National Energy Technology Laboratory (U.S.)
  Place of Publication: Morgantown, West Virginia
  Additional Info: National Energy Technology Lab., Morgantown, WV (United States)

Date

• Creation: 2001-12-01

Language

• English

Description

• Content Description: The final report for the DOE/UNM grant number DE-FG26-98FT40148 discusses the accomplishments of both the theoretical analysis of advanced power cycles and experimental investigation of advanced falling film heat exchangers. This final report also includes the progress report for the third year (period of October 1, 2000 to September 30, 2001). Four new cycles were studied and two cycles were analyzed in detail based on the second law of thermodynamics. The first cycle uses a triple combined cycle, which consists of a topping cycle (Brayton/gas), an intermediate cycle (Rankine/steam), and a bottoming cycle (Rankine/ammonia). This cycle can produce high efficiency and reduces the irreversibility of the Heat Recovery Steam Generator (HRSC) of conventional combined power cycles. The effect of important system parameters on the irreversibility distribution of all components in the cycle under reasonable practical constraints was evaluated. The second cycle is a combined cycle, which consists of a topping cycle (Brayton/gas) and a bottoming cycle (Rankine/ammonia) with integrated compressor inlet air cooling. This innovative cycle can produce high power and efficiency. This cycle is also analyzed and optimized based on the second the second law to obtain the irreversibility distribution of all components in the cycle. The results of the studies have been published in peer reviewed journals and ASME conference proceeding. Experimental investigation of advanced falling film heat exchangers was conducted to find effective additives for steam condensation. Four additives have been selected and tested in a horizontal tube steam condensation facility. It has been observed that heat transfer additives have been shown to be an effective way to increase the efficiency of conventional tube bundle condenser heat exchangers. This increased condensation rate is due to the creation of a disturbance in the liquid condensate surround the film. The heat transfer through such a film has increased due to the onset of Maranogni convection as well as the population of ''dropwise-like'' condensation increased. The results have been published in peer reviewed journals.
• Physical Description: 65 pages

Subject

• Keyword: Rankine Cycle
• Keyword: Heat Transfer
• Keyword: Heat Recovery
• Keyword: Brayton Cycle
• STI Subject Categories: 42 Engineering
• Keyword: Combined Cycles
• Keyword: Topping Cycles
• Keyword: Steam Generators
• Keyword: Heat Exchangers
• Keyword: Bottoming Cycles

Source

• Other Information: PBD: 1 Dec 2001

Collection

• Name: Office of Scientific & Technical Information Technical Reports
  Code: OSTI

Institution

• Name: UNT Libraries Government Documents Department
  Code: UNTGD

Resource Type

• Report

Format

• Text

Identifier

• Report No.: FG26-98FT40148--03
• Grant Number: FG26-98FT40148
• DOI: 10.2172/791719
• Office of Scientific & Technical Information Report Number: 791719
• Archival Resource Key: ark:/67531/metadc739557

Note

• Display Note: OSTI as DE00791719