Off-design performance of micro-scale solar brayton cycle

Name: Off-design performance of micro-scale solar brayton cycle
Author: Akba, Tufan, Baker, D. K., Mengüç, Mustafa Pınar

İsim	Off-design performance of micro-scale solar brayton cycle
Yazar	Akba, Tufan, Baker, D. K., Mengüç, Mustafa Pınar
Basım Tarihi:	2023-08-01
Basım Yeri	- Elsevier
Konu	Concentrating solar power, Multidisciplinary design optimization, Off-design performance, Solar receiver, Thermodynamic analysis
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0196-8904
Kayıt Numarası	d86ad622-748e-4ff5-a962-d424e52ed82d
Lokasyon	Mechanical Engineering
Tarih	2023-08-01
Örnek Metin	A novel methodology to design a micro-scale, solar-only, air-breathing, open Brayton cycle and assess its on- and off-design performance. The methodology is applied to generate and assess six thermodynamic layouts over a range of solar irradiation levels. All plants have the same on-design requirements to create a baseline to compare their off-design performance. PyCycle, a thermodynamic cycle modeling library to model jet engine performance, is revised to transform the jet engine performance modeling to solar thermal plant performance modeling and used to create a volumetric receiver component. A response surface surrogate model of the receiver is created for design optimization to maximize the component-level efficiency. The compressor and turbine maps are scaled for the balance of the plant. Off-design efficiency, mass flow rate, operation range, turbomachinery maps, and maximum power output are presented. Since the methodology can be adapted to all plant sizes, the results are normalized to on-design condition. The outcome of this study demonstrates the impact of the thermodynamic configuration on off-design performance and provides a methodology to design plants that are more robust across a range of solar irradiation levels and can be operated in a more flexible manner. Compared to single shaft configuration, solar radiation operation range is improved by 5%, with 6% less mass flow, and operates more efficiently than the benchmark case over 85% of the operating regime.
DOI	10.1016/j.enconman.2023.117187
Cilt	289

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Off-design performance of micro-scale solar brayton cycle

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

Basım Tarihi 2023-08-01

Basım Yeri - Elsevier

Konu Concentrating solar power, Multidisciplinary design optimization, Off-design performance, Solar receiver, Thermodynamic analysis

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0196-8904

Kayıt Numarası d86ad622-748e-4ff5-a962-d424e52ed82d

Lokasyon Mechanical Engineering

Tarih 2023-08-01

Örnek Metin A novel methodology to design a micro-scale, solar-only, air-breathing, open Brayton cycle and assess its on- and off-design performance. The methodology is applied to generate and assess six thermodynamic layouts over a range of solar irradiation levels. All plants have the same on-design requirements to create a baseline to compare their off-design performance. PyCycle, a thermodynamic cycle modeling library to model jet engine performance, is revised to transform the jet engine performance modeling to solar thermal plant performance modeling and used to create a volumetric receiver component. A response surface surrogate model of the receiver is created for design optimization to maximize the component-level efficiency. The compressor and turbine maps are scaled for the balance of the plant. Off-design efficiency, mass flow rate, operation range, turbomachinery maps, and maximum power output are presented. Since the methodology can be adapted to all plant sizes, the results are normalized to on-design condition. The outcome of this study demonstrates the impact of the thermodynamic configuration on off-design performance and provides a methodology to design plants that are more robust across a range of solar irradiation levels and can be operated in a more flexible manner. Compared to single shaft configuration, solar radiation operation range is improved by 5%, with 6% less mass flow, and operates more efficiently than the benchmark case over 85% of the operating regime.

DOI 10.1016/j.enconman.2023.117187

Cilt 289