Thermal Reduction of NOx in a Double Compression Expansion Engine by Injection of AAS 25 and AUS 32 in the Exhaust Gases

2019 ◽  
Author(s):  
Kenan Muric ◽  
Per Tunestal ◽  
Arne Andersson ◽  
Lennart Andersson
Keyword(s):  
Thermal Reduction ◽  
Expansion Engine ◽  
Exhaust Gases ◽  
Double Compression ◽  
Reduction Of Nox

scholarly journals Reduction of NOx Emission of a Diesel Engine with a Multiple Injection Pump by SCR Catalytic Converter

2016 ◽  
Vol 64 (4) ◽  
pp. 1205-1210 ◽  
Author(s):  
Vít Marek ◽  
Lukáš Tunka ◽  
Adam Polcar ◽  
Dušan Slimařík
Keyword(s):  
Diesel Engine ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Catalytic Converter ◽  
Nox Emission ◽  
Multiple Injection ◽  
Scr Catalyst ◽  
Exhaust Gases ◽  
Injection Pump ◽  
Reduction Of Nox

This paper deals with reduction of NOx-emission of a diesel engine with multiple injection pump by SCR catalytic converter. Main aim of the measurement was the detection of SCR catalyst converter efficiency. Tests were realized at the Research and Development workplace of Zetor Tractor a.s. Used engine was equipped with a multiple injection pump with electromagnetic regulator of a fuel charge. During the experiment selective catalytic reduction and diesel particulate filter were used as an after treatment of harmful pollutants reduction. Testing cycle of the eight-point test was chosen and Non-Road Steady Cycle (NRSC) was maintained according to 97/68/EC directive. Results confirmed the dependencies between temperatures of SCR catalyst and exhaust gases and the volume of exhaust gases on efficiency of SCR catalyst. During the operation load of the engine, selective catalytic reduction reached efficiency over 90 %. Used after treatment system is suitable for reduction of harmful pollutants according to the Tier 4f norm.

scholarly journals The influence of cetane-detergent additives into diesel fuel increased to 10% (V/V) of RME content on energy parameters and exhaust gas composition of a diesel engine

2019 ◽  
Vol 179 (4) ◽  
pp. 204-209
Author(s):  
Winicjusz STANIK ◽  
Jerzy CISEK
Keyword(s):  
Diesel Fuel ◽  
Cetane Number ◽  
The Other ◽  
Exhaust Gas ◽  
Gas Composition ◽  
Slight Effect ◽  
Negative Effects ◽  
Exhaust Gases ◽  
The Third ◽  
Reduction Of Nox

To avoid the negative effects of increasing the amount of RME in the diesel fuel (to 10%), three different additive packages were used: stabilising, cleaning, and increasing the cetane number with different concentrations. The tests were carried out using a 4-cylinder, turbocharged 1.9 TDI engine from VW. The tests were carried out for 4 fuels (comparative fuel with a content of 7% RME and 3 test fuels with a content of 10% RME, differing in the content of the additive package.It was found that each of the 3 additive packages used does not have a significant impact on fuel consumption. However, a different effect of the tested additives on the composition of exhaust gases was observed. The first package had a slight effect on reducing the NOx concentration in the exhaust, but only for small engine loads. On the other hand, the second additive pack worked more effectively only at higher engine loads (in relation to the reduction of NOx concentration in the exhaust gases). In the third packet, the amount of the cetane additive was doubled (compared to the second packet). Then, the reduction in the NOx concentration in the exhaust gas by 3–8% was obtained with reference to the comparative fuel.

scholarly journals Reed Valve Evaluation and Selection for the Compressor Cylinder in Double Compression Expansion Engine (DCEE) Concept

2021 ◽  
Author(s):  
Kevin Moreno Cabezas ◽  
Harsh Goyal ◽  
Arne Andersson ◽  
Bengt Johansson
Keyword(s):  
Expansion Engine ◽  
Compressor Cylinder ◽  
Double Compression ◽  
Selection For ◽  
Reed Valve

scholarly journals Energy Distribution Analysis of Multiple Injectors for the Double Compression Expansion Engine Concept

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Harsh Goyal ◽  
Cristian Avila Jiminez ◽  
Nyrenstedt Gustav ◽  
Hong Im ◽  
Bengt Johansson ◽  
...  
Keyword(s):  
Energy Distribution ◽  
Distribution Analysis ◽  
Expansion Engine ◽  
Double Compression ◽  
Engine Concept

scholarly journals A Simulation Study to Understand the Efficiency Analysis of Multiple Injectors for the Double Compression Expansion Engine (DCEE) Concept

2021 ◽  
Author(s):  
Harsh Goyal ◽  
Gustav Nyrenstedt ◽  
Kevin Moreno Cabezas ◽  
Niraj Panthi ◽  
Hong Im ◽  
...  
Keyword(s):  
Simulation Study ◽  
Efficiency Analysis ◽  
Expansion Engine ◽  
Double Compression

Double Compression Expansion Engine Concepts: A Path to High Efficiency

2015 ◽  
Vol 8 (4) ◽  
pp. 1562-1578 ◽  
Author(s):  
Nhut Lam ◽  
Martin Tuner ◽  
Per Tunestal ◽  
Arne Andersson ◽  
Staffan Lundgren ◽  
...  
Keyword(s):  
High Efficiency ◽  
Expansion Engine ◽  
Double Compression

Understanding the role of catalytic active sites for heterogeneous photocatalytic oxidation of methanol and thermal reduction of NOx

2019 ◽  
Vol 476 ◽  
pp. 110505 ◽  
Author(s):  
Swapna Challagulla ◽  
Soumitra Payra ◽  
Chanchal Chakraborty ◽  
Satyapaul A. Singh ◽  
Sounak Roy
Keyword(s):  
Active Sites ◽  
Photocatalytic Oxidation ◽  
Thermal Reduction ◽  
Oxidation Of Methanol ◽  
Catalytic Active Sites ◽  
Reduction Of Nox
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