Ammonia as a Potential Substance

Dinçer, İbrahim; Zamfirescu, Calin

doi:10.1007/978-0-387-95861-3_7

Cited by 6 publications

(4 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The need for sustainable and stable energy supply along with the desire to reduce environmental impacts have led to significant development of vehicles with alternative locomotion . The research community and industry have focused on three major alternatives: electric, biofuel, and hydrogen. − Only recently has ammonia regained interest as a candidate fuel for light-duty vehicles, and different system configurations for this proposed fuel were suggested in the literature. ,− The configurations consisted of using ammonia as a monofuel, cracked ammonia to hydrogen and in a dual-fuel design introduced to ICE or fuel cells (FCs). Currently, there is minimal LCA and TEA on ammonia as a fuel for light-duty vehicles; however, these reports are promising and can be used to modify, improve, and advance the current ICE or FC utilizing ammonia fuel, such as reducing the nitrogen footprint from NH 3 and implementing carbon-capture regulations.…”

Section: End-usersmentioning

confidence: 99%

Progress and Prospective of Nitrogen-Based Alternative Fuels

et al. 2020

View full text Add to dashboard Cite

Alternative fuels are essential to enable the transition to a sustainable and environmentally friendly energy supply. Synthetic fuels derived from renewable energies can act as energy storage media, thus mitigating the effects of fossil fuels on environment and health. Their economic viability, environmental impact, and compatibility with current infrastructure and technologies are fuel and power source specific. Nitrogen-based fuels pose one possible synthetic fuel pathway. In this review, we discuss the progress and current research on utilization of nitrogen-based fuels in power applications, covering the complete fuel cycle. We cover the production, distribution, and storage of nitrogen-based fuels. We assess much of the existing literature on the reactions involved in the ammonia to nitrogen atom pathway in nitrogen-based fuel combustion. Furthermore, we discuss nitrogen-based fuel applications ranging from combustion engines to gas turbines, as well as their exploitation by suggested end-uses. Thereby, we evaluate the potential opportunities and challenges of expanding the role of nitrogen-based molecules in the energy sector, outlining their use as energy carriers in relevant fields.

show abstract

Section: End-usersmentioning

confidence: 99%

Progress and Prospective of Nitrogen-Based Alternative Fuels

et al. 2020

View full text Add to dashboard Cite

show abstract

“…However, new ammonia synthesis techniques are being developed. 4 To produce power by utilizing ammonia fuel, two possible routes are fuel combustion and fuel cell (FC) technologies. The combustion of ammonia in an internal combustion engine (ICE) was first utilized several decades earlier when there was a shortage of fossil fuels in Belgium.…”

Section: Introductionmentioning

confidence: 99%

“…The most common method to produce ammonia is the well-known Haber–Bosh process. However, new ammonia synthesis techniques are being developed . To produce power by utilizing ammonia fuel, two possible routes are fuel combustion and fuel cell (FC) technologies.…”

Section: Introductionmentioning

confidence: 99%

Development and Assessment of a Novel Integrated System Using an Ammonia Internal Combustion Engine and Fuel Cells for Cogeneration Purposes

Siddiqui

Dinçer

2019

Energy Fuels

View full text Add to dashboard Cite

In this study, a novel ammonia-based integrated system, incorporating both ammonia-and hydrogen-fueled internal combustion engine and ammonia fuel cell system, is developed for cogeneration of power and cooling. The integrated system recovers the waste heat and uses it efficiently to achieve cooling and producing power. The performance of the present system is assessed and evaluated by using thermodynamic energy and exergy approaches. The energy efficiency of the overall cogeneration system is determined to be 59.9%, while the exergy efficiency is found to be 51.9%. Also, the energy efficiency of the ammonia fuel cell is evaluated as 44.4% and the exergy efficiency is found to be 41.7%. Further, the energy and exergy efficiencies of the internal combustion engine are determined to be 45.7 and 43.8%, respectively. Some parametric studies under actual operating conditions are conducted to assess the system performance at varying operating conditions and parameters.The developed system provides a new direction toward improving the performances of ammonia fuel cell systems through system integration, cogeneration, and waste heat recovery.

show abstract

“…The decomposition of ammonia is a reversal process of synthesis but requires different pressure and temperature environment. Ammonia can automatically decompose endothermically into hydrogen and nitrogen (see equation (6) at temperatures of 730 °C[37], but, at lower temperatures, the reaction is too slow to decompose.…”

mentioning

confidence: 99%

Nanomaterials enhancing the solid-state storage and decomposition of ammonia

Mateti¹,

Saranya²,

Sathikumar³

et al. 2022

Nanotechnology

View full text Add to dashboard Cite

Hydrogen is ideal for producing carbon-free and clean-green energy with which to save the world from climate change. Proton exchange membrane fuel cells use to hydrogen to produce 100% clean energy, with water the only by-product. Apart from generating electricity, hydrogen plays a crucial role in hydrogen-powered vehicles. Unfortunately, the practical uses of hydrogen energy face many technical and safety barriers. Research into hydrogen generation and storage and reversibility transportation are still in its very early stages. Ammonia (NH3) has several attractive attributes, with a high gravimetric hydrogen density of 17.8 wt.% and theoretical hydrogen conversion efficiency of 89.3%. Ammonia storage and transport are well-established technologies, making the decomposition of ammonia to hydrogen the safest and most carbon-free option for using hydrogen in various real-time applications. However, several key challenges must be addressed to ensure its feasibility. Current ammonia decomposition technologies require high temperatures, pressures and non-recyclable catalysts, and a sustainable decomposition mechanism is urgently needed. This review article comprehensively summarises current knowledge about and challenges facing solid-state storage of ammonia and decomposition. It provides potential strategic solutions for developing a scalable process with which to produce clean hydrogen by eliminating possible economic and technical barriers.

show abstract

Ammonia as a Potential Substance

Cited by 6 publications

References 17 publications

Progress and Prospective of Nitrogen-Based Alternative Fuels

Progress and Prospective of Nitrogen-Based Alternative Fuels

Development and Assessment of a Novel Integrated System Using an Ammonia Internal Combustion Engine and Fuel Cells for Cogeneration Purposes

Nanomaterials enhancing the solid-state storage and decomposition of ammonia

Contact Info

Product

Resources

About