Gradient-based optimization of micro-scale pressurized volumetric receiver geometry and flow rate

Name: Gradient-based optimization of micro-scale pressurized volumetric receiver geometry and flow rate
Author: Akba, Tufan, Baker, D., Mengüç, Mustafa Pınar

İsim	Gradient-based optimization of micro-scale pressurized volumetric receiver geometry and flow rate
Yazar	Akba, Tufan, Baker, D., Mengüç, Mustafa Pınar
Basım Tarihi:	2023-02
Basım Yeri	- Elsevier
Konu	Concentrating solar thermal, Gradient-based optimization, OpenMDAO, Thermal radiation, Volumetric receiver
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0960-1481
Kayıt Numarası	94fd6be5-f8c8-4277-9919-eba6ea115644
Lokasyon	Mechanical Engineering
Tarih	2023-02
Örnek Metin	This study focuses on the design optimization of a micro-scale pressurized volumetric receiver by changing geometry and flow rate constrained by the volume, outlet air temperature, and outer surface temperature. The pressurized volumetric receiver model is replicated from an existing model, which assumes constant air pressure and neglects the convection loss from the cavity. The existing model is revised from a solver to a design optimizer. The replicated model is restructured using OpenMDAO (Open-source MultiDisciplinary Analysis and Optimization) framework, and analytical derivatives are implemented for efficient derivative calculation to increase optimization performance. The replicated model is verified, and the maximum outlet air temperature difference is less than 0.05%. Optimization performance, selection of optimizers, the effect of the domain size, and radiative methods are discussed. The combined impact of the design variables is observed by selecting SLSQP (Sequential Least SQuares Programming) and trust-region optimizers. Optimization performance is tested in different domain sizes and compared with a design of experiments analysis. For testing the impact of radiative heat transfer methods to design optimization, the Rosseland approximation, and P1 method are selected. Depending on the design domain, a solution methodology is suggested for future receiver design optimizations applicable for macro-scale pressurized volumetric receivers.
DOI	10.1016/j.renene.2022.12.105
Cilt	203

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Gradient-based optimization of micro-scale pressurized volumetric receiver geometry and flow rate

Yazar Akba, Tufan, Baker, D., Mengüç, Mustafa Pınar

Basım Tarihi 2023-02

Basım Yeri - Elsevier

Konu Concentrating solar thermal, Gradient-based optimization, OpenMDAO, Thermal radiation, Volumetric receiver

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0960-1481

Kayıt Numarası 94fd6be5-f8c8-4277-9919-eba6ea115644

Lokasyon Mechanical Engineering

Tarih 2023-02

Örnek Metin This study focuses on the design optimization of a micro-scale pressurized volumetric receiver by changing geometry and flow rate constrained by the volume, outlet air temperature, and outer surface temperature. The pressurized volumetric receiver model is replicated from an existing model, which assumes constant air pressure and neglects the convection loss from the cavity. The existing model is revised from a solver to a design optimizer. The replicated model is restructured using OpenMDAO (Open-source MultiDisciplinary Analysis and Optimization) framework, and analytical derivatives are implemented for efficient derivative calculation to increase optimization performance. The replicated model is verified, and the maximum outlet air temperature difference is less than 0.05%. Optimization performance, selection of optimizers, the effect of the domain size, and radiative methods are discussed. The combined impact of the design variables is observed by selecting SLSQP (Sequential Least SQuares Programming) and trust-region optimizers. Optimization performance is tested in different domain sizes and compared with a design of experiments analysis. For testing the impact of radiative heat transfer methods to design optimization, the Rosseland approximation, and P1 method are selected. Depending on the design domain, a solution methodology is suggested for future receiver design optimizations applicable for macro-scale pressurized volumetric receivers.

DOI 10.1016/j.renene.2022.12.105

Cilt 203