Next Article in Journal
Methanol Marker for the Detection of Insulating Paper Degradation in Transformer Insulating Oil
Previous Article in Journal
Colorimetric Method for Detection of Hydrazine Decomposition in Chemical Decontamination Process
Open AccessArticle

Development of a Model for Performance Analysis of a Honeycomb Thermal Energy Storage for Solar Power Microturbine Applications

1
Department of Mechanical Engineering & Aeronautics, School of Mathematics, Computer Science & Engineering, University of London, London EC1V 0HB, UK
2
Institute for Thermal Power Engineering, College of Energy Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
*
Author to whom correspondence should be addressed.
Energies 2019, 12(20), 3968; https://doi.org/10.3390/en12203968
Received: 31 July 2019 / Revised: 29 September 2019 / Accepted: 8 October 2019 / Published: 18 October 2019
(This article belongs to the Section Energy Storage and Application)
Solar power microturbines are required to produce steady power despite the fluctuating solar radiation, with concerns on the dispatchability of such plants where thermal energy storage may offer a solution to address the issue. This paper presents a mathematical model for performance prediction of a honeycomb sensible-heat thermal energy storage designed for application of concentrated solar power microturbine. The focus in the model is to consider the laminar developing boundary layers at the entry of the flow channels, which could have a profound effect on the heat-transfer coefficient due to large velocity and temperature gradients, an effect which has not been considered in the modelling of such storage systems. Analysing the thermal and hydrodynamic boundary layer development, the Nusselt number and the friction factor were evaluated using a validated conjugate heat-transfer method. The simulations results were used to develop accurate regression functions for Nusselt number and friction factor. These formulations have been adopted within a one-dimensional model to evaluate the performance of the storage under different operating conditions. The model was in good agreement with conjugate heat transfer results with maximum relative error below 2%. Two case studies are presented to demonstrate the applicability of the proposed methodology. View Full-Text
Keywords: thermal storage; solar power micro gas turbine; honeycomb thermal storage; conjugate heat transfer; concentrated solar power; sensible-heat thermal storage thermal storage; solar power micro gas turbine; honeycomb thermal storage; conjugate heat transfer; concentrated solar power; sensible-heat thermal storage
Show Figures

Figure 1

MDPI and ACS Style

Iaria, D.; Zhou, X.; Al Zaili, J.; Zhang, Q.; Xiao, G.; Sayma, A. Development of a Model for Performance Analysis of a Honeycomb Thermal Energy Storage for Solar Power Microturbine Applications. Energies 2019, 12, 3968. https://doi.org/10.3390/en12203968

AMA Style

Iaria D, Zhou X, Al Zaili J, Zhang Q, Xiao G, Sayma A. Development of a Model for Performance Analysis of a Honeycomb Thermal Energy Storage for Solar Power Microturbine Applications. Energies. 2019; 12(20):3968. https://doi.org/10.3390/en12203968

Chicago/Turabian Style

Iaria, Davide; Zhou, Xin; Al Zaili, Jafar; Zhang, Qiang; Xiao, Gang; Sayma, Abdulnaser. 2019. "Development of a Model for Performance Analysis of a Honeycomb Thermal Energy Storage for Solar Power Microturbine Applications" Energies 12, no. 20: 3968. https://doi.org/10.3390/en12203968

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop