Study of High Efficiency Zero-Emission Argon Circulated Hydrogen Engine

Kuroki, Rentaro; Kato, Akira; Kamiyama, Eiichi; Sawada, Daisaku

doi:10.4271/2010-01-0581

Cited by 42 publications

(18 citation statements)

References 1 publication

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“…Theoretically, an increase in the ideal thermal efficiency can be achieved by replacing nitrogen with higher specific heat ratio gases such as argon and xenon. These efficiency gains have been roughly demonstrated recently by several groups [1][2][3]. Moreover, using noble gases in combination with oxygen effectively eradicates NOx from the combustion products due to the lack of nitrogen.…”

Section: Introductionmentioning

confidence: 82%

The Effect of Heavy Working Fluids on Hydrogen Combustion

Shahsavan¹,

Mack²

2017

Preprint

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Abstract:The thermodynamic efficiency of internal combustion engines is dependent on the compression ratio and specific heat ratio of the working fluid. Using a mixture of oxygen and noble gases instead of air can increase the thermal efficiency due to their higher specific heat ratio. It also has advantage of eliminating NOx caused by lack of nitrogen. In this study, the three dimensional turbulent injection of hydrogen into a constant volume combustion chamber has been modeled and compared to mixtures of oxygen with nitrogen, argon and xenon. All conditions including the mass flow rate of the injected fuel, injection velocity, and initial temperature and pressure of the chamber were kept constant. The results indicate that the hydrogen jet has more penetration length in nitrogen compared to argon and xenon. However, the smaller penetration lengths lead to more complex jet shapes and larger cone angles. In combination with the higher specific heat ratio, combustion in a noble gas environment results in higher temperatures and OH radical concentrations. Furthermore, mixedness is investigated using mean spatial variation and mean scalar dissipation. Hydrogen in argon shows a better mixing rate compared to nitrogen and xenon due to higher diffusivity.

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Section: Introductionmentioning

confidence: 82%

The Effect of Heavy Working Fluids on Hydrogen Combustion

Shahsavan¹,

Mack²

2017

Preprint

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“…In contrast, the approach of using gases with a low specific heat capacity, specifically using a monoatomic noble gas as a diluent to replace nitrogen from the air to generate a high temperature for the purpose of hydrogen ignition [11,19] , is a promising alternative. This technique would not only eliminate the difficulty of CI for the hydrogen fuel but also be advantageous for achieving thermal efficiencies higher than those provided by normal air.…”

Section: Introductionmentioning

confidence: 93%

“…This great concept encouraged a patent by Lauman et al [22] in which argon is utilized in an IC engine; the patent proposes that the water from the exhaust can be condensed out and that the remaining argon can then be recycled in a closed-loop system. The feasibility of using this concept in a vehicle has been studied by many researchers [11,19,22] , and a detailed study of separating argon and steam (H 2 O) from exhaust gas from a system was performed by Kuroki et al [19] .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, attention is now being paid to CI engines that operate using a mixture of oxygen and argon. Argon was selected because this gas is plentiful, easy to obtain on the market (compared with other noble gases), and facilitates the creation of gas-tight seals [19] . This great concept encouraged a patent by Lauman et al [22] in which argon is utilized in an IC engine; the patent proposes that the water from the exhaust can be condensed out and that the remaining argon can then be recycled in a closed-loop system.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the combustion process of hydrogen jets under argon-circulated hydrogen-engine conditions

Mansor

Shioji

2016

Combustion and Flame

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“…The specific heat ratio of argon, a monatomic molecule, is higher than that of air with its characteristics of a wide range of inert gas sources. This new method of realizing high-efficiency and zero-emission combustion has attracted many researchers in the field around the world [33][34][35]. For a hydrogen-fueled APC system (Fig.…”

Section: Requirements and Challenges For Future Development Of An Autmentioning

confidence: 99%

$$\hbox {CO}_{2}$$ CO 2 Reduction Request and Future High-Efficiency Zero-Emission Argon Power Cycle Engine

Gong

Deng

et al. 2018

Automot. Innov.

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To meet the requirements of strict fuel consumption and emission limits, continuously increasing the thermal efficiency of an internal combustion engine and decreasing its exhaust emissions are the main challenges to its sustainable development within the automotive industry. Considering the competition with other zero-emission powertrain systems, such as vehicle batteries and fuel cells, the development of the internal combustion engine needs to focus on producing higher efficiency and zero emissions to meet the request of CO 2 reduction. This paper introduces two novel concepts for an internal combustion engine featuring high efficiency and zero emissions. Referred to as the argon power cycle engine fueled with either hydrogen or natural gas within an oxygen-argon mixture, its fundamentals and characteristics are expounded. This includes a method necessary to absorb carbon dioxide when natural gas is used as fuel instead of hydrogen.

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Study of High Efficiency Zero-Emission Argon Circulated Hydrogen Engine

Cited by 42 publications

References 1 publication

The Effect of Heavy Working Fluids on Hydrogen Combustion

The Effect of Heavy Working Fluids on Hydrogen Combustion

Investigation of the combustion process of hydrogen jets under argon-circulated hydrogen-engine conditions

$$\hbox {CO}_{2}$$ CO 2 Reduction Request and Future High-Efficiency Zero-Emission Argon Power Cycle Engine

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