This work is part of the European project “Next-CSP” which aims to develop a next generation of concentrated solar power plants using the particle technology and, particularly, the fluidized particle-in-tube technology working at high temperature (>700°C). A 3MWth pilot unit including a solar receiver, storage tanks, a heat exchanger and a gas turbine is under assembly at the top of a solar tower (Themis-France) to demonstrate this technology. The unit will use the fluidized particle-in-tube solar receiver concept. The scaling up of this concept needs researches on the gas-particle flow structure evolution along the tube and on wall-to-fluidized particles heat transfer. Therefore, several experimental set-ups were implemented to study the particle flow and heat exchanges in order to define the best operational conditions for the full-scale 3MW test unit. The first one is a cold experiment with three 3m-long transparent tubes implemented to study the stability of dense particle suspension (DPS) flow in tube and the flow distribution between the different tubes. 3m is the length of the solar receiver tubes. The second one is an on-sun experiment equipped with a one meter-long finned tube to collect data on the distribution of wall surface and particles temperature, thermal exchange and thermal performance useful for further modelling and up scaling. Experiments with the cold mockup indicate that stable particle flowrate ranging from 10 to 340 kg/m2.s (0.015 to 0.53 g/s) can be obtained per tube with mean particle volume fraction in the range 0.29-0.36. Solar experiments with finned tube designed to increase the heat exchange between the particle suspension and the irradiated tube result in rather constant values of the heat transfer coefficient at about 1200 ± 400 W/m2.K for particle mass flux between 40 and 110 kg/m2.s.
Skip Nav Destination
Article navigation
11 December 2020
SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems
1–4 October 2019
Daegu, South Korea
Research Article|
December 11 2020
Particle flow and heat transfer in fluidized bed-in-tube solar receivers
Alex Le Gal;
Alex Le Gal
Processes, materials and solar energy laboratory
, PROMES-CNRS (UPR 8521), 7 rue du four solaire, 66120 Font-Romeu Odeillo, France
Search for other works by this author on:
Benjamin Grange;
Benjamin Grange
Processes, materials and solar energy laboratory
, PROMES-CNRS (UPR 8521), 7 rue du four solaire, 66120 Font-Romeu Odeillo, France
Search for other works by this author on:
Ronny Gueguen;
Ronny Gueguen
Processes, materials and solar energy laboratory
, PROMES-CNRS (UPR 8521), 7 rue du four solaire, 66120 Font-Romeu Odeillo, France
Search for other works by this author on:
Michael Donovan;
Michael Donovan
Processes, materials and solar energy laboratory
, PROMES-CNRS (UPR 8521), 7 rue du four solaire, 66120 Font-Romeu Odeillo, France
Search for other works by this author on:
Jean-Yves Peroy;
Jean-Yves Peroy
Processes, materials and solar energy laboratory
, PROMES-CNRS (UPR 8521), 7 rue du four solaire, 66120 Font-Romeu Odeillo, France
Search for other works by this author on:
Gilles Flamant
Gilles Flamant
a)
Processes, materials and solar energy laboratory
, PROMES-CNRS (UPR 8521), 7 rue du four solaire, 66120 Font-Romeu Odeillo, France
a)Corresponding author: [email protected]
Search for other works by this author on:
a)Corresponding author: [email protected]
AIP Conf. Proc. 2303, 070002 (2020)
Citation
Alex Le Gal, Benjamin Grange, Ronny Gueguen, Michael Donovan, Jean-Yves Peroy, Gilles Flamant; Particle flow and heat transfer in fluidized bed-in-tube solar receivers. AIP Conf. Proc. 11 December 2020; 2303 (1): 070002. https://doi.org/10.1063/5.0028761
Download citation file:
Citing articles via
Design of a 100 MW solar power plant on wetland in Bangladesh
Apu Kowsar, Sumon Chandra Debnath, et al.
The effect of a balanced diet on improving the quality of life in malignant neoplasms
Yu. N. Melikova, A. S. Kuryndina, et al.
Related Content
Narrow-channel fluidized beds for particle-sCO2 heat exchangers in next generation CPS plants
AIP Conference Proceedings (May 2022)
Design of a 40-kWth counterflow particle-supercritical carbon dioxide narrow-channel fluidized bed heat exchanger
AIP Conf. Proc. (October 2023)
The fluidized bed air heat exchanger in a hybrid Brayton-cycle solar power plant
AIP Conf. Proc. (July 2019)
Cleaning and Heat Transfer in Heat Exchanger with Circulating Fluidized Beds
AIP Conference Proceedings (June 2010)
Temperature influence on wall-to-particle suspension heat transfer in a solar tubular receiver
AIP Conference Proceedings (May 2016)