Solid oxide fuel cell application in district cooling

Al-Qattan, Ayman; ElSherbini, Abdelrahman; Al-Ajmi, Kholoud

doi:10.1016/j.jpowsour.2014.01.099

Cited by 23 publications

(21 citation statements)

References 14 publications

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“…The additional 10% reduction with respect to Scenario 2 is directly attributable to the installation of thermal storage. These results are in-line with the emissions analyses of others [6]. Fig.…”

Section: Complimentary Technologiessupporting

confidence: 92%

“…In warm climates thermal storage can reduce peak cooling demand by 57% [6], allowing smaller chillers to be installed. This scenario considers the addition of both electric chillers and thermal storage to the installation of a stationary fuel cell.…”

Section: Complimentary Technologiesmentioning

confidence: 99%

“…The aim of this paper is to perform sensitivity analyses of the primary factors influencing the economic viability of stationary fuel cell systems for commercial buildings in the United States. Some of the important factors identified by others and that are also considered here include: commercial electricity and gas rates [2], time-of-use and demand charges, building dynamics, climate impacts, fuel cell control capability [3][4][5], and balance of system components such as thermal or electric energy storage [6,7] and absorption chiller heat recovery [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…Analyses of stationary fuel cell systems have often considered only the electric output, while some have included an SOFC with hydrogen co-production [4], electric energy storage [7], thermal storage [28] or absorption chilling [8]. Some limited sensitivity studies suggested a strong dependence upon the relative costs of electricity and natural gas, the presence of net-metering tariffs, and additional CHP systems e.g.…”

Section: Introductionmentioning

confidence: 99%

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Economic analysis of fuel cell installations at commercial buildings including regional pricing and complementary technologies

McLarty

Brouwer

Ainscough

2016

Energy and Buildings

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a b s t r a c tThis paper presents results from sensitivity studies conducted using the Distributed Generation Buildout Economic Assessment Tool (DG-BEAT). The viability of meeting commercial building loads with a stationary fuel cells is studied under different conditions of electricity pricing, dispatch strategies, and complementary technologies. Key findings support the notion that fuel cells are becoming economically viable alternatives in California, New York and Connecticut at installed costs of $7000-10,000/kW. Michigan is identified as another state well suited to fuel cell development with heat recovery. Fuel cell installations reduce net carbon emissions for commercial buildings by 20-30% when compared to local, time-resolved, grid emissions. Grid sell-back, at 50% retail price, significantly improves the economics of a base load fuel cell, but has little impact for a dispatchable system. At installed costs below $5000/kW, load following capability results in significant additional cost reductions as the generating capacity is increased beyond the building's base load requirements. Complementary technologies such as chillers and thermal storage have a pronounced impact, particularly in warmer climates. Installing fuel cells paired with electric chillers and thermal storage in Florida at buildings with exceptionally high air conditioning demands can achieve the same economic benefit as a typical New York building.

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Section: Complimentary Technologiessupporting

confidence: 92%

Section: Complimentary Technologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Economic analysis of fuel cell installations at commercial buildings including regional pricing and complementary technologies

McLarty

Brouwer

Ainscough

2016

Energy and Buildings

View full text Add to dashboard Cite

show abstract

“…The results showed that introduction of an HST to electrical and thermal energy generation could increase profits and thermal production capacity of the combined cycle power plant [26]. Thermal energy storage was utilized to reduce system capacity by Al-Qattan et al [27]. A cost analysis of the system components and operation resulted in a 53% reduction in the cost per ton-hour of cooling over traditional systems.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of cooling and thermal energy storage tanks in optimization of multi-generation system

Hajabdollahi

2015

Journal of Energy Storage

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Distribution of SOFC thermal stress via helium gas (He) based cooling system

Fahs,

Ghassemi,

Fahs

2023

Env Prog and Sustain Energy

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Some electrochemical devices, such as fuel cells, transforms chemical energy to electricity. The main issue of SOFC's is the thermal stress caused by high operating temperature (700–1000°C). Thermal stress leads to crack initiation and propagation that in turn leads to gas leakage, structure instability and abrupt termination of the fuel cell (estimated in our previous work; 1.5% displacement of cathode electrode and the lifetime decreases by 40%–50%). The purpose of the current study is to show the influence of helium gas cooling system on SOFC cell performance. Using the coupled governing nonlinear differential equations, heat transfer, fluid flow, mass transfer, mass continuity, tortuosity effects and momentum. An in‐house computer code based on finite element method (FEM), computational structural mechanics, and the computational fluid dynamics (CFD) was utilized. The temperature and stress distribution are calculated using the Navier–Stokes thermo‐fluid, Darcy and energy models. The Results demonstrate that there is a high thermal stress and displacement in the absence of He gas cooling system, but in the case of He cooling system, thermal stress is much less and no displacement is noticed, which leads to an increase of the fuel cell's lifetime up to 35%–40%.

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Solid oxide fuel cell application in district cooling

Cited by 23 publications

References 14 publications

Economic analysis of fuel cell installations at commercial buildings including regional pricing and complementary technologies

Economic analysis of fuel cell installations at commercial buildings including regional pricing and complementary technologies

Evaluation of cooling and thermal energy storage tanks in optimization of multi-generation system

Distribution of SOFC thermal stress via helium gas (He) based cooling system

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