A High Efficiency PSOFC/ATS-Gas Turbine Power System

Abstract

This report was written with support of the U.S. Department of Energy under Contract No. DE-AC26-98FT40455. The Government reserves for itself, and others acting on its behalf, a royalty-free, nonexclusive, irrevocable, worldwide license for Government purposes to publish, distribute, translate, duplicate, exhibit and perform this copyrighted report. PD-99-118A OSiemens Westinghouse Power Corporation 2001 All Rights Resewed "This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility, for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or othelwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government of any agency thereof."

Comparative Analysis of Alternative Configurations of the Mercury 50 Recuperated Gas-Turbine-Based Biomass Integrated Gasification Combined Heat and Power (BIGCHP) Plant

“…The system has been conveniently located at one end of the engine, and therefore, it is likely to be adapted for different innovative solutions. According to Lundberg et al, the combustion system of the Mercury 50 is to be adaptable to future firing with biomass- and coal-derived fuels. The machine has already been considered as a potential candidate for some innovative GT cycles. − …”

“…According to Lundberg et al, the combustion system of the Mercury 50 is to be adaptable to future firing with biomass- and coal-derived fuels. The machine has already been considered as a potential candidate for some innovative GT cycles. − …”

“…In the first step, the model of the natural-gas-fired machine was built and tuned to match the main technical data at ISO conditions. The detailed specification of the turbine has been taken from Lundberg et al 18 It has to be stressed that the compression ratio of the machine given in different publications varies from 9.1:1 to 9.9:1. It can therefore be concluded that the machine has promising characteristics in the aspect of adaptation for a low-calorific-value gaseous fuel.…”

Solid-oxide fuel cells with hydrocarbon fuels

“…Thermodynamics and systems models are being developed to analyze, and evaluate a great variety of alternative hybrid cycles [172][173][174][175][176][177]171,[178][179][180][181][182][183][184]. For example, Rao and Samuelsen show that a pressurized tubular SOFC combined with an intercooled-reheat gas turbine and a humid-air-turbine (HAT) cycle can achieve a thermal efficiency of 69%, and dual SOFC-HAT hybrid can achieve an efficiency of nearly 79% [174,185].…”

Locating Hybrid Fuel Cell–Turbine Power Generation Units under Uncertainty

“…A hybrid system operates by placing stacks of SOFCs on the high-pressure side of a cycle while a gas turbine operates as a bottoming engine. A simplified diagram of this interaction is given in figure 2 (Lundberg et al, 2001). Fuel is supplied to the fuel cell, a pre-fuel cell air heater, and a post-fuel cell exhaust combustor.…”