COST AND PERFORMANCE TRADEOFFS OF ALTERNATIVE SOLAR-DRIVEN S-CO2 BRAYTON CYCLE CONFIGURATIONS

Ho, Clifford K and Carlson, Matthew and Garg, Pardeep and Kumar, Pramod (2016) COST AND PERFORMANCE TRADEOFFS OF ALTERNATIVE SOLAR-DRIVEN S-CO2 BRAYTON CYCLE CONFIGURATIONS. In: 9th ASME International Conference on Energy Sustainability, JUN 28-JUL 02, 2015, San Diego, CA.

PDF Pro_ASME_9th_Int_Con_Ene_Sus_Vol1_.2016pdf - Published Version Restricted to Registered users only Download (2MB) | Request a copy

Abstract

This paper evaluates cost and performance tradeoffs of alternative supercritical carbon dioxide (s-CO2) closed-loop Brayton cycle configurations with a concentrated solar heat source. Alternative s-CO2 power cycle configurations include simple, recompression, cascaded, and partial cooling cycles. Results show that the simple closed-loop Brayton cycle yielded the lowest power-block component costs while allowing variable temperature differentials across the s-CO2 heating source, depending on the level of recuperation. Lower temperature differentials led to higher sensible storage costs, but cycle configurations with lower temperature differentials (higher recuperation) yielded higher cycle efficiencies and lower solar collector and receiver costs. The cycles with higher efficiencies (simple recuperated, recompression, and partial cooling) yielded the lowest overall solar and power-block component costs for a prescribed power output.

Item Type:	Conference Proceedings
Additional Information:	Copy right for this article belongs to the AMER SOC MECHANICAL ENGINEERS, THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	04 Jan 2017 05:12
Last Modified:	15 Oct 2018 14:21
URI:	http://eprints.iisc.ac.in/id/eprint/55734

Actions (login required)

View Item