High temperature heat exchanger studies for applications to gas turbines

Min, June Kee; Jeong, Ji Hwan; Ha, Man Yeong; Kim, Kui-Soon

doi:10.1007/s00231-009-0560-3

Cited by 107 publications

(28 citation statements)

References 35 publications

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“…In addition, the recuperator was arranged in a counter-current multi-pass cross-flow configuration. Due to the presence of the reheater, the maximum temperatures that the recuperator has to be able to stand can go up to 900 • C. Previous research by McDonald [37], Maziasz [38], and Min [39] has stated that Inconel 625 presents excellent creep resistance properties. Therefore, the passes with a temperature higher than 800 • C were assumed to be made of Inconel 625, whereas the rest of the heat exchanger material was assumed to be stainless steel.…”

Section: Greek Symbolsmentioning

confidence: 99%

Design Point Performance and Optimization of Humid Air Turbine Power Plants

et al. 2017

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Abstract:With the recent drive towards higher thermal efficiencies and lower emission levels in the power generation market, advanced cycle power plants have become an increasingly appealing option. Among these systems, humid air turbines have been previously identified as promising candidates to deliver high efficiency and power output with notably low overall system volume, weight and emissions footprint. This paper investigates the performance of an advanced humid air turbine power cycle and aims to identify the dependencies between key cycle design variables, thermal performance, weight and cost by means of a parametric design optimization approach. Designs of the main heat exchangers are generated, aiming to ascertain the relationship between their technology level and the total weight and acquisition cost of them. The research outcomes show that the recuperator and the intercooler are the two components with the largest influence on the thermal efficiency and the total cost. The total weight of the power system is driven by the technology level of the recuperator and the economizer. Finally, the effectiveness of the aftercooler seems to have the greatest impact in reducing the total acquisition cost of the system with minimum penalty on its thermal efficiency.

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Section: Greek Symbolsmentioning

confidence: 99%

Design Point Performance and Optimization of Humid Air Turbine Power Plants

et al. 2017

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“…This recuperator was fabricated with two manifold tubes and a bundle of profile tubes using Iconel 625. However, the estimated total weight of this shell-and-tube type recuperator was about 1,000 kg per engine, which clearly adds too much weight to the engine system on aircraft (Min et al, 2009). …”

Section: Recuperator For Gas Turbine Power Generationmentioning

confidence: 99%

“…Thus, the gas turbine cycle efficiency can be increased and fuel consumption can be reduced (Franco and Casarosa, 2004). For this application, the typical compressor exit gas temperature can be as high as 725°C, which requires an HTHX as the recuperator (Min et al, 2009). Three major types of recuperators in gas turbine systems are used: PFHXs, plate-and-frame heat exchangers, and shell-and-tube heat exchangers (Xiao et al, 2017).…”

Section: Recuperator For Gas Turbine Power Generationmentioning

confidence: 99%

Recent Developments in High Temperature Heat Exchangers: A Review

Ohadi¹,

Zhang²,

Keramati³

et al. 2018

Frontiers in Heat and Mass Transfer

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Heat exchangers are key components of most power conversion systems, a few industrial sectors can particularly benefit from high temperature heat exchangers. Examples include conventional aerospace applications, advanced nuclear power generation systems, and high efficiency stationary and mobile modular fossil fuel to shaft power/electricity conversion systems. This paper provides a review of high temperature heat exchangers in terms of build materials, general design, manufacturing techniques, and operating parameters for the selected applications. Challenges associated with conventional and advanced fabrication technologies of high temperature heat exchangers are discussed. Finally, the paper outlines future research needs of high temperature heat exchangers.

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“…Engineers are working to make good use of their knowledge and available materials to produce efficient, cheap and reliable machines. Over the past decade, gas turbines have turned out to be one of the most interesting techniques for electric power production (June, et al, 2009). Today, the gas turbine can be used in several different modes in critical industries such as power generation, oil and gas, process plants, transport, and smaller related industries, as well.…”

Section: Introductionmentioning

confidence: 99%

Parametric Performance of Gas Turbine Power Plant with Effect Intercooler

Doori¹

2011

MAS

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A cycle model of a gas turbine power plant with effect intercooler along with a detailed parametric study is presented in this paper. The effects of parameter (design and operation condition) on the power output, compression work, specific fuel consumption and thermal efficiency are evaluated. In this study, the implementation of intercooling increases the power generating efficiency of the suggested gas turbine power plant when compared to the non-intercooled gas turbine power plant, configurations. Intercooler gas turbine cycle is analyzed and a new approach for improvement of their thermodynamic performances based on first law of thermodynamics is presented. Different effected parameters are simulated, including different compressor pressure ratios, different ambient temperature, air fuel ratio, turbine inlet temperature, and cycle peak temperature ratio were analyzed. The obtained results are presented and analyzed. Further increasing the cycle peak temperature ratio and total pressure ratio can still improve the performance of the intercooled gas turbine cycle.

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High temperature heat exchanger studies for applications to gas turbines

Cited by 107 publications

References 35 publications

Design Point Performance and Optimization of Humid Air Turbine Power Plants

Design Point Performance and Optimization of Humid Air Turbine Power Plants

Recent Developments in High Temperature Heat Exchangers: A Review

Parametric Performance of Gas Turbine Power Plant with Effect Intercooler

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