Promising designs of compact heat exchangers for modular HTRs using the Brayton cycle

Pra, F.; Tochon, Patrice; Mauget, Christiane; Fokkens, Jan; Willemsen, Sander

doi:10.1016/j.nucengdes.2007.12.024

Cited by 103 publications

(20 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nikitin et al [6] investigated the heat transfer and pressure drop characteristics of a PCHE in an experiment with a supercritical carbon dioxide loop. Pra et al [7] constructed a numerical model from the validation results for PCHEs, and obtained a suitable operating condition by using the results of various accident scenario simulations. Kim et al [8] obtained a numerical model for calculating the flow and heat transfer in PCHEs using the GAMMA code [9] and three-dimensional numerical analysis, and investigated the thermal hydraulic characteristics of PCHEs.…”

Section: Introductionmentioning

confidence: 99%

A Parametric Study of the Thermal-Hydraulic Performance of a Zigzag Printed Circuit Heat Exchanger

Lee

Kim

2014

Heat Transfer Engineering

View full text Add to dashboard Cite

The effects of geometric parameters on the performance of a printed circuit heat exchanger have been analyzed using threedimensional Reynolds-averaged Navier-Stokes equations. The shear stress transport model is used for accurate prediction of the turbulent flows. The numerical solutions are validated in comparison with the available experimental data, and different lengths of the calculation domain have been tested to determine the optimum length of the domain. The effects of two design parameters, namely, the channel angle and the semi-ellipse aspect ratio of the cold channel, on the heat transfer and friction performance in the cold channel have been evaluated. The results indicate that the effectiveness of the heat exchanger is maximized when the cold channel angle is similar to the hot channel angle.

show abstract

Section: Introductionmentioning

confidence: 99%

A Parametric Study of the Thermal-Hydraulic Performance of a Zigzag Printed Circuit Heat Exchanger

Lee

Kim

2014

Heat Transfer Engineering

View full text Add to dashboard Cite

show abstract

“…Pra et al [114] described printed circuit technology and plate fin technology for recuperators while Tsai and Wang [115] investigated the design and analysis of a Swiss-Roll recuperator.…”

Section: Recuperator or Heat Exchangermentioning

confidence: 99%

A review on the thermodynamic optimisation and modelling of the solar thermal Brayton cycle

Roux

Bello‐Ochende

Meyer

2013

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Many studies have been published on the performance and optimisation of the Brayton cycle and solar thermal Brayton cycle showing the potential, merits and challenges of this technology. Solar thermal Brayton systems have potential to be used as power plants in many sun-drenched countries. It can be very competitive in terms of efficiency, cost and environmental impact. When designing a system such as a recuperative Brayton cycle there is always a compromise between allowing effective heat transfer and keeping pressure losses in components small. The high temperatures required in especially the receiver of the system presents a challenge in terms of irreversibilities due to heat loss. In this paper, the authors recommend the use of the total entropy generation minimisation method. This method can be applied for the modelling of a system and can serve as validation when compared with first-law modelling. The authors review various modelling perspectives required to develop an objective function for solar thermal power optimisation, including modelling of the sun as an exergy source, the Gouy-Stodola theorem and turbine modelling.With recommendations, the authors of this paper wish to clarify and simplify the optimisation and modelling of the solar thermal Brayton cycle for future work. The work is applicable to solar thermal studies in general but focuses on the small-scale recuperated solar thermal Brayton cycle.2

show abstract

“…Using an intermediate heat exchanger, the heat can be transferred from the first loop to the second loop in the VHTR system. Due to the special operating condition of VHTR, the intermediate heat exchanger should endure the ultra high temperature, high pressure and high pressure difference conditions [6]. The VHTR needs extensively large heat transfer areas to transfer heat due to the high heat flux in the core [7].…”

Section: Introductionmentioning

confidence: 99%

Study on local thermal–hydraulic performance and optimization of zigzag-type printed circuit heat exchanger at high temperature

et al. 2015

Energy Conversion and Management

152

View full text Add to dashboard Cite

Promising designs of compact heat exchangers for modular HTRs using the Brayton cycle

Cited by 103 publications

References 2 publications

A Parametric Study of the Thermal-Hydraulic Performance of a Zigzag Printed Circuit Heat Exchanger

A Parametric Study of the Thermal-Hydraulic Performance of a Zigzag Printed Circuit Heat Exchanger

A review on the thermodynamic optimisation and modelling of the solar thermal Brayton cycle

Study on local thermal–hydraulic performance and optimization of zigzag-type printed circuit heat exchanger at high temperature

Contact Info

Product

Resources

About