Improving the Ecological and Energy Efficiency of Internal Combustion Engines by Ejector Chiller Using Recirculation Gas Heat

Radchenko, Roman; Pyrysunko, Maxim; Kornienko, Victoria; Scurtu, Ionuţ Cristian; Patyk, R.

doi:10.1007/978-3-030-66717-7_45

Cited by 22 publications

(15 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4) [9]. However, the efficiency of this approach does not exceed 95% [10], and it is therefore advisable to develop other ways of reducing the level of NO x emissions that can help to improve the efficiency and reduce the weight-size parameters [11][12][13][14].…”

Section: Identification Of the Investigation Objectmentioning

confidence: 99%

“…(1) and smoke (2) emissions versus the degree of recirculation [6] Although recirculation can reduce the emissions of nitrogen oxides, the soot yield increases and the fuel efficiency of the engine decreases, and this is particularly evident at full loads. For this reason, this approach is economically justified only at partial engine operating modes and at recirculation rates of 12-20% [10,11,12].…”

Section: Fig4 Scr Reactor Systemmentioning

confidence: 99%

See 1 more Smart Citation

Improvement of the Cargo Fleet Vessels Power Plants Ecological Indexes by Development of the Exhaust Gas Systems

Kuznetsov

Dymo

Kuznetsova

et al. 2021

Polish Maritime Research

View full text Add to dashboard Cite

Modernisation of the power plants of cargo fleet vessels to satisfy the requirements set out by the International Maritime Organisation is an urgent scientific and technical problem. The article presents the results of developing a solution to this problem that focuses on the exhaust gas system. We propose the use of ejection nozzles as part of this system. It was found that when the ejection coefficient in these nozzles is n = 3, it is possible to exclude the use of SCR reactors, thus reducing the operating costs of the marine power plant. Using a mathematical modelling method, the efficiency of operation of six types of nozzle as part of the exhaust gas system was investigated, and a constructive layout was proposed for the gas ducts and inlet louvres for supplying ambient air. To increase the efficiency of the proposed system, we consider several options for intensifying heat transfer processes through the use of dimple systems in the nozzles and nozzles with swirling flow. We found that these technical solutions would make it possible to further increase the efficiency of the systems by up to 19% abs.

show abstract

Section: Identification Of the Investigation Objectmentioning

confidence: 99%

Section: Fig4 Scr Reactor Systemmentioning

confidence: 99%

Improvement of the Cargo Fleet Vessels Power Plants Ecological Indexes by Development of the Exhaust Gas Systems

Kuznetsov

Dymo

Kuznetsova

et al. 2021

Polish Maritime Research

View full text Add to dashboard Cite

show abstract

“…Since the use of condensing heating surfaces determines the possibility of increasing the efficiency of boiler [12,13], it is of great importance to assess the effect of the presence of condensate (water, acid) and pollution 14-* Corresponding author: kornienkovika1987@gmail.com 16 on the LTHS on processes of NOx conversion during the movement of gases in the gas duct and in the atmosphere, on the amount of SO2 in exhaust gases Exhaust gases of power boilers nitrogen oxides NOx consist of 97 % of NO and 5 % of NO2 [17]. For auxiliary boilers and industrial boilers, according to [18] the content of NO2 in NOx significantly increases (the proportion of nitrogen dioxide reaches 12 %).…”

Section: Literature Reviewmentioning

confidence: 99%

Absorption of pollutants from exhaust gases by low-temperature heating surfaces

Kornienko¹,

Radchenko²,

Radchenko³

et al. 2021

E3S Web Conf.

Self Cite

View full text Add to dashboard Cite

One of the most effective methods aimed to improving the environmental safety is fuel oil combustion in the form of specially prepared water-fuel emulsions. The combustion of water-fuel emulsion in internal combustion engines makes it possible to reduce a rate of low-temperature corrosion at wall temperatures below the dew point temperature of sulfuric acid vapor, to install a condensing lowtemperature heating surface in the exhaust gas boiler that leads to increase the efficiency of boiler. Therefore, it is of great importance to assess the effect of the presence of condensate (water, acid) and pollution on these surfaces on the processes of NOx, SO2 absorption from exhaust gases. Investigations of SO2, NOx and particulate matter emission were carried out on the experimental installation for fuel oil and water-fuel emulsion combustion with different water content. Using condensing heating surface enables to reduce the concentration of NOx and SO2 by 65 %. Experimental studies have shown that condensing heating surface ensures the capture of up to 30 % of particulate matter from the exhaust gas flow.

show abstract

“…The technical innovations in waste heat recovery [15,16] including transport application [17,18] might be successfully applied in TIAC: two-stage intake air cooling [10], deep exhaust heat utilization [19,20]. The heat potential for converting in refrigeration can be increased due to low-temperature condensation [21,22].…”

Section: Literature Reviewmentioning

confidence: 99%

Gas turbine intake air hybrid cooling systems and their rational designing

Radchenko

Mikielewicz

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

The general trend to improve the fuel efficiency of gas turbines (GT) at increased ambient temperatures is turbine intake air cooling (TIAC) by exhaust heat recovery chillers The high efficiency absorption lithium-bromide chillers (ACh) of a simple cycle are the most widely used, but they are not able to cool intake air lower than 15°C because of a chilled water temperature of about 7°C. A two-stage hybrid absorption-ejector chillers (AECh) were developed with ejector chiller as a low temperature stage to provide deep air cooling to 10°C and lower. A novel trend in TIAC by two-stage air cooling in chillers of hybrid type has been proposed to provide about 50% higher annual fuel saving in temperate climatic conditions as compared with ACh cooling. The advanced methodology to design and rational distribute the cooling capacity of TIAC systems that provides a closed to maximum annual fuel reduction without oversizing was developed.

show abstract

Improving the Ecological and Energy Efficiency of Internal Combustion Engines by Ejector Chiller Using Recirculation Gas Heat

Cited by 22 publications

References 21 publications

Improvement of the Cargo Fleet Vessels Power Plants Ecological Indexes by Development of the Exhaust Gas Systems

Improvement of the Cargo Fleet Vessels Power Plants Ecological Indexes by Development of the Exhaust Gas Systems

Absorption of pollutants from exhaust gases by low-temperature heating surfaces

Gas turbine intake air hybrid cooling systems and their rational designing

Contact Info

Product

Resources

About