Modular Design and Experimental Testing of a 50 kWth Pressurized-Air Solar Receiver for Gas Turbines-Reference-Cited by-同舟云学术

Modular Design and Experimental Testing of a 50 kWth Pressurized-Air Solar Receiver for Gas Turbines

Published:2015-06-01 Issue:3 Volume:137 Page:
ISSN:0199-6231
Container-title:Journal of Solar Energy Engineering
language:en
Short-container-title:

Author:

Poživil Peter¹,Ettlin Nicolas¹,Stucker Fabian¹,Steinfeld Aldo¹²

Affiliation:

1. Department of Mechanical and Process Engineering, ETH Zürich, Zürich 8092, Switzerland

2. Solar Technology Laboratory, Paul Scherrer Institute, Villigen 5232, Switzerland e-mail:

Abstract

A high-temperature high-concentration pressurized-air solar receiver is considered for driving a power generation Brayton cycle. The modular design consists of a cylindrical SiC cavity surrounded by a concentric annular reticulated porous ceramic (RPC) foam contained in a stainless steel pressure vessel, with a secondary concentrator attached to its windowless aperture. Experimentation was carried out in a solar tower for up to 47 kW of concentrated solar radiative power input in the absolute pressure range of 2-6 bar. Peak outlet air temperatures exceeding 1200 °C were reached for an average solar concentration ratio of 2500 suns. A notable thermal efficiency—defined as the ratio of the enthalpy change of the air flow divided by the solar radiative power input through the aperture—of 91% was achieved at 700 °C and 4 bar.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Link

http://asmedigitalcollection.asme.org/solarenergyengineering/article-pdf/doi/10.1115/1.4028918/6326619/sol_137_03_031002.pdf

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