A novel ammonia solid oxide fuel cell-based powering system with on-board hydrogen production for clean locomotives

Al-Hamed, Khaled H.M.; Dinçer, İbrahim

doi:10.1016/j.energy.2021.119771

Cited by 49 publications

(20 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A control volume can be regarded as any component that is modeled thermodynamically. Under steady-state conditions, the rate of mass change in the control volume is zero [11] ∑ in .…”

Section: Thermodynamic Balance Equationsmentioning

confidence: 99%

“…In the thermodynamic analysis, the specific kinetic and potential energy values associated with the entering and exiting mass flow rates were assumed to be negligible and ignored [11]:…”

Section: Thermodynamic Balance Equationsmentioning

confidence: 99%

“…In addition, the actual voltage of the stack can also be defined based on the I-V curve [8,11,13,21,33,34] The cell efficiency may be estimated as [17]:…”

Section: Parameters Valuementioning

confidence: 99%

“…NH 3 can be widely produced by well-established methods and infrastructures such as the Haber-Bosch process, the electrochemical process, and power-to-gas technologies or produced from algae through a hydrothermal gasification combined system [9]. This fuel can be easily stored, either refrigerated at −33 • C and atmospheric pressure or approximately 29.5 • C and pressurized to 800-1000 kPa [6,7,10,11]. In addition, since NH 3 contains a 45% higher volumetric hydrogen density than liquid hydrogen, it is also a potentially attractive medium for hydrogen storage.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

Duong

Ryu

Jung³

et al. 2022

Applied Sciences

View full text Add to dashboard Cite

A novel integrated system based on solid oxide fuel cells (SOFCs), a gas turbine (GT), the steam Rankine cycle (SRC), the Kalina cycle (KC), and the organic Rankine cycle (ORC) is proposed to achieve cascade energy utilization. Mathematical models are introduced and system performance is analyzed using energy and exergy methods. The first and second laws of thermodynamics are used to analyze the system thermodynamically. In addition, exergy destruction and losses of the various integrated subsystems are calculated. The energy and exergy efficiencies of the multigeneration system are estimated to be 60.4% and 57.3%, respectively. In addition, the hot water produced during the waste heat recovery process may also be used for accommodating seafarers on ships. Sequential optimization is developed to optimize the operating conditions of the integrated system to achieve the required power output. A comprehensive parametric study is conducted to investigate the effect of varying the current densities of the fuel cell and working fluid of the ORC on the overall performance of the combined system and subsystems. The working performance of five working fluids for the ORC as candidates—R134a, R600, R601, R152a, and R124—is compared. R152a, which provides 71.23 kW of power output, and energy and exergy efficiencies of 22.49% and 42.76%, respectively, is selected as the best thermodynamic performance for the ORC.

show abstract

“…A control volume can be regarded as any component that is modeled thermodynamically. Under steady-state conditions, the rate of mass change in the control volume is zero [11] ∑ in .…”

Section: Thermodynamic Balance Equationsmentioning

confidence: 99%

“…In the thermodynamic analysis, the specific kinetic and potential energy values associated with the entering and exiting mass flow rates were assumed to be negligible and ignored [11]:…”

Section: Thermodynamic Balance Equationsmentioning

confidence: 99%

“…In addition, the actual voltage of the stack can also be defined based on the I-V curve [8,11,13,21,33,34] The cell efficiency may be estimated as [17]:…”

Section: Parameters Valuementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

Duong

Ryu

Jung³

et al. 2022

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The constant appearance of Organic/Inorganic Small molecules is mostly due to electrolyte components like water, acids as alternative electrolytes (ex: phosphoric acid and sulfuric acid fuel cells), alternative oxidants like H2O2, 240 and association with chemical hydrogen storage like ammonia and methanol. 191,192,241,242 Polymer interest is due to research for membranes for the PEMFC and AEMFC electrolytes. [243][244][245][246] There has been some continued interest in substances under the Alloys and Elements designation due to catalyst research.…”

Section: Figure 11 Publication Trends and Distinct Substances Used By...mentioning

confidence: 99%

Materials Research Directions Towards a Green Hydrogen Economy: A Review

Baum

Diaz

Konovalova

et al. 2022

Preprint

View full text Add to dashboard Cite

A constellation of technologies have been researched with an eye towards enabling a hydrogen economy. Within the research fields of hydrogen production, storage, and utilization in fuel cells, various classes of materials have been developed targeting higher efficiencies and utility. This Review examines recent progress in these research fields from the years 2011-2021, exploring the concepts and materials directions important to each. Particular attention has been given to catalyst materials enabling the green production of hydrogen from water, chemical and physical storage systems, and materials used in technical capacities within fuel cells. Quantification of publication and materials trends provides a picture of the current state of development within each node of the hydrogen economy.

show abstract

Comparative Study of Thermodynamic Performances: Ammonia vs. Methanol SOFC for Marine Vessels

Duong,

Ryu,

Nam

et al. 2024

Chem Eng & Technol

View full text Add to dashboard Cite

In response to escalating environmental concerns and the imperative to institute effective energy management strategies, the pursuit of alternative fuels has emerged as a pivotal endeavor for realizing sustainable energy solutions. Methanol and ammonia have surfaced as particularly promising and environmentally friendly liquid fuels, holding significant potential for aiding in the attainment of decarbonization objectives and addressing global energy requirements. This research proposes and scrutinizes a sophisticated cogeneration system integrating solid oxide fuel cells (SOFCs), gas turbine (GT), steam Rankine cycle, and organic Rankine cycle. Direct utilization of ammonia and methanol as fuel in this intricate system is examined, with the design and modeling facilitated through the utilization of Aspen HYSYS V.12.1. The thermodynamic performance of the proposed system is rigorously assessed by employing the foundational principles of the first and second laws of thermodynamics. The direct SOFCs fueled by ammonia and methanol exhibit notable energy efficiencies of 64.25 % and 58.42 %, respectively. Remarkably, the amalgamated systems showcase heightened energy efficiencies, witnessing a commendable increase of 12.64 % and 10.66 % when powered by ammonia and methanol, respectively, as compared to individual SOFC systems. Examination of exergy destruction reveals the SOFC as the principal contributor, with electrochemical and chemical processes constituting the primary sources of irreversibility. Additionally, explicit values for exergy destruction in the GT, afterburner, and heat exchanger components are provided. A comprehensive parametric study underscores the pivotal role of the fuel utilization factor (Uf), identifying a value of 0.85 as optimal and significantly augmenting the thermodynamic efficiency of the system. This analysis not only substantiates the potential of ammonia and methanol as effective carriers for hydrogen but also underscores the efficacy of waste heat recovery as a viable strategy for enhancing the overall thermodynamic performance of an SOFC system. The findings presented herein contribute valuable insights, paving the way for the strategic utilization of alternative fuels and cogeneration systems in the broader context of sustainable and environmentally conscious energy solutions.

show abstract

A novel ammonia solid oxide fuel cell-based powering system with on-board hydrogen production for clean locomotives

Cited by 49 publications

References 19 publications

Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

Materials Research Directions Towards a Green Hydrogen Economy: A Review

Comparative Study of Thermodynamic Performances: Ammonia vs. Methanol SOFC for Marine Vessels

Contact Info

Product

Resources

About