Application of the Open Cycle Stirling Engine Driven with Liquid Nitrogen for the Non-Polluting Automobiles

Кравченко, М. Б.

doi:10.15673/ret.v53i5.849

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…The cryogenic power plant [25] consists of a cryogenic tank 1, a gasifier 2, an air heat exchanger 3, and a pneumatic motor 4 (Fig. 10).…”

Section: Alternative Energy Sources Usementioning

confidence: 99%

Energy aspects of automobile transport development

Borodenko,

Hnatov,

Arhun

et al. 2023

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Problem. Improving automobile transport means increasing fuel economy and environmental indicators. Fuel, in a broad sense, means energy used to activate the car's power plant. Potential energy is dispersed in the earth’s interior, on its surface, in the atmospheric air, and even in space. Moreover, some of them exist in different substances. On the one hand, the efficiency of an energy product use is assessed by its energy intensity; on the other hand, it is evaluated by the costs of its production (transportation) and the quality of its transformation into a consumer type of energy. Special attention is paid to renewable and unlimited kinds of energy sources. Goal. The purpose of the study is a qualitative analysis of the road transport development direction from the standpoint of the alternative energy sources use, taking into account the factors that comprehensively determine the economic and environmental indicators at the stages of production and processing of fossil raw materials, production of power plants and conversion, transformation, and transportation of energy in the field of transport technologies. Methodology. The first direction consists of the adaptation (conversion) of the design of thermal internal combustion engines for alternative liquid or gaseous fuel types. The advantage of this approach is minimal costs for engine conversion and fuel production. The second approach involves using hybrid power plants, consisting of a main and auxiliary engine, an energy source or accumulator, an energy converter, and a braking recuperation system. The third direction is the use of non-traditional energy sources. Results. The directions of the development of power plants for motor vehicles related to the increase in the energy density of hydrocarbon fuels, the use of hybrid power plants, and the use of alternative energy sources have been determined. A qualitative assessment of the considered approaches is given. Originality. A comprehensive approach to evaluating the effectiveness of using alternative types of energy in road transport is considered in terms of energy, economic, and environmental indicators. Practical value. The obtained results can be regarded as recommendations when drawing up plans for the evolution of industries of fossil extraction and transformation of other energy resources, the development of motor vehicles, and transport infrastructure technologies, taking into account the natural and industrial potential of the country

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“…The cryogenic power plant [25] consists of a cryogenic tank 1, a gasifier 2, an air heat exchanger 3, and a pneumatic motor 4 (Fig. 10).…”

Section: Alternative Energy Sources Usementioning

confidence: 99%

Energy aspects of automobile transport development

Borodenko,

Hnatov,

Arhun

et al. 2023

View full text Add to dashboard Cite

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Improving the Efficiency of a Gifford–Mcmahon Cryogenic Refrigerator

Кравченко

Лавренченко²

2019

Chem Petrol Eng

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The characteristics of a 4 K Gifford-McMahon cryocooler with a second stage-regenerator packed with cenospheres

Лавренченко¹,

Кравченко

2019

Low Temperature Physics

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Designing efficient Gifford- McMahon (GM) cryocoolers that would allow cooling to temperatures below 4.2 K is considered an important step in the development of helium temperature technologies. Modern two-stage GM machines ensure cold production up to 4.2 K, but with relatively low efficiency, due mainly to the low heat capacity of the material used for the second-stage regenerator packing of GM machines. Two urgent problems are solved, in order to create 4 K GM cryocoolers: the non-stationary heat exchange processes in GM regenerators are described; the efficiency indicators of a GM second-stage regenerator based on cenospheres filled with helium are identified. A comparative analysis of the various types of regenerator packing, which make it possible to obtain temperatures below 4.2 K, is performed, and the advantages of helium-filled cenosphere packing are substantiated. The operation of a two-stage GM cryorefrigerator with a cooling capacity of 0.2 W at a temperature level of 4.2 K is analyzed using the wave approach to regenerator modeling. It is shown that the GM machine can be improved by using a regenerator filled with cenospheres in its second stage.

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Application of the Open Cycle Stirling Engine Driven with Liquid Nitrogen for the Non-Polluting Automobiles

Cited by 3 publications

References 9 publications

Energy aspects of automobile transport development

Energy aspects of automobile transport development

Improving the Efficiency of a Gifford–Mcmahon Cryogenic Refrigerator

The characteristics of a 4 K Gifford-McMahon cryocooler with a second stage-regenerator packed with cenospheres

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