A new approach for fuel injection into a solar receiver/reactor: Numerical and experimental investigation

doi:10.1007/s11705-018-1782-z

Frontiers of Chemical Science and Engineering

2018, Vol. 12

Issue (4): 683-696 https://doi.org/10.1007/s11705-018-1782-z

本期目录

A new approach for fuel injection into a solar receiver/reactor: Numerical and experimental investigation

M Helal Uddin¹, Nesrin Ozalp¹(

), Jens Heylen², Cedric Ophoff²

¹. Mechanical and Industrial Engineering Department, University of Minnesota Duluth, Duluth, MN 55812-3042, USA
². Mechanical Engineering Department, 3001 Leuven, Belgium

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Abstract：

An innovative and efficient design of solar receivers/reactors can enhance the production of clean fuels via concentrated solar energy. This study presents a new jet-type burner nozzle for gaseous feedstock injection into a cavity solar receiver inspired from the combustion technology. The nozzle design was adapted from a combustion burner and successfully implemented into a solar receiver and studied the influence of the nozzle design on the fluid mixing and temperature distribution inside the solar receiver using a 7 kW solar simulator and nitrogen as working fluid. Finally, a thorough computational fluid dynamics (CFD) analysis was performed and validated against the experimental results. The CFD results showed a variation of the gas flow pattern and gas mixing after the burner nozzle adaptation, which resulted an intense effect on the heat transfer inside the solar receiver.

Key words： solar reactor nozzle CFD heat transfer mixing and recirculation

收稿日期: 2018-03-12 出版日期: 2019-01-03

Corresponding Author(s): Nesrin Ozalp

引用本文:

. [J]. Frontiers of Chemical Science and Engineering, 2018, 12(4): 683-696.
M Helal Uddin, Nesrin Ozalp, Jens Heylen, Cedric Ophoff. A new approach for fuel injection into a solar receiver/reactor: Numerical and experimental investigation. Front. Chem. Sci. Eng., 2018, 12(4): 683-696.

链接本文:

https://academic.hep.com.cn/fcse/CN/10.1007/s11705-018-1782-z
https://academic.hep.com.cn/fcse/CN/Y2018/V12/I4/683

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Physical properties	Correlations	Ref.
Density/(kg?m^?3)	$ρ g (T) = P M R T$	Manufacturer supplied
Density/(kg?m^?3)	$ρ ss = 7970 $ ,? $ρ ins = 128 $ , $ρ qua = 2214 *$
Specific heat/(J?kg^?1?K^?1)	$C p g (T) = 947.51 + 0.26667 T − 5 × 10 − 5 T 2$	[27,28]
	$C pss (T) = 349.145 + 0.469 T − 4.007 × 10 − 4 T 2 + 1.34 × 10 − 7 T 3$
	$C p ins = 1130 $ , $C p qua = 700 $	Manufacturer supplied
Viscosity/(kg?m^?1?s^?1)	$μ g (T) = 4 × 10 − 5 +5 × 10 − 7 T − 10 − 10 T 2$	[29]
Thermal conductivity/(W?m^?1?K^?1)	$k g (T) = 0.0146 + 5 × 10 − 5 T$	[27,28]
	$k ss (T) * = 11.133 + 0.013 T$	Manufacturer supplied
	$k ins (T) * = 0.0504 − 10 − 4 T + 3 × 10 − 7 T 2$ $k qua = 1.4 *$

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