Turbomachine Design for Supercritical Carbon Dioxide Within the sCO2-HeRo.eu Project

Author:

Hacks Alexander1,Schuster Sebastian1,Dohmen Hans Josef1,Benra Friedrich-Karl1,Brillert Dieter1

Affiliation:

1. Chair of Turbomachinery, University of Duisburg-Essen, Lotharstraße 1, Duisburg 47057, Germany e-mail:

Abstract

The paper aims to give an overview over the keystones of design of the turbomachine for a supercritical CO2 (sCO2) Brayton cycle. The described turbomachine is developed as part of a demonstration cycle on a laboratory scale with a low through flow. Therefore, the turbomachine is small and operates at high rotational speed. To give an overview on the development, the paper is divided into two parts regarding the aerodynamic and mechanical design. The aerodynamic design includes a detailed description on the steps from choosing an appropriate rotational speed to the design of the compressor impeller. For setting the rotational speed, the expected high windage losses are evaluated considering the reachable efficiencies of the compressor. The final impeller design includes a description of the blading development together with the final geometry parameters and calculated performance. The mechanical analysis shows the important considerations for building a turbomachine with integrated design of the three major components: turbine, alternator, and compressor (TAC). It includes different manufacturing techniques of the impellers, the bearing strategy, the sealing components, and the cooling of the generator utilizing the compressor leakage. Concluding the final design of the TAC is shown and future work on the machine is introduced.

Funder

H2020 European Research Council

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Reference16 articles.

1. Benra, F.-K., Brillert, D., Frybort, O., Hajek, P., Rohde, M., Schuster, S., Seewald, M., and Starflinger, J., 2016, “A Supercritical CO2 Low Temperature Brayton-Cycle for Residual Heat Removal,” The Fifth International Symposium—Supercritical CO2 Power Cycles, San Antonio, TX, Mar. 28–31, pp. 1–12.http://www.sco2symposium.com/www2/sco2/papers2016/SystemConcepts/035paper.pdf

2. Operation and Analysis of a Supercritical CO2 Brayton Cycle,2010

3. Startup and Operation of a Supercritical Carbon Dioxide Brayton Cycle;ASME J. Eng. Gas Turbines Power,2014

4. Clementoni, E. M., and Cox, T. L., 2014, “Practical Aspects of Supercritical Carbon Dioxide Brayton System Testing,” The Fourth International Symposium—Supercritical CO2 Power Cycles, Pittsburgh, PA, Sept. 9–10.http://sco2symposium.com/www2/sco2/papers2014/testing/11PPT-Clementoni.pdf

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3