Emission Mechanism and Investigation of Biofuel Combustion Characteristics at Different Techniques Towards NOx Emission Reduction: an Overview

EasyChair Preprint no. 6777

Abstract

In combustion, nitrogen oxide is one of the pollutants produced especially under fossil fuel. As a result of high emission from fossil fuel, alternative fuel sources with less or free from emissions have evolved in response to the energy demand and environmental challenges associated with fossil products. In mitigating combustion emissions, a variety of technologies have been developed, including patronizing bio-fuel and flameless combustion application. This paper gives an overview of bio-fuel benefits and flameless combustion as a solution to fuel emissions and the concepts that underpin it. This study revealed that biodiesel combustion produces low NOx emissions with optimal operation conditions using additives, application of NOx adsorbed catalyst, water injection and utilization of De NOx. The reduction effect on injection and emulsion, compared to the base diesel, showed that emulsion and injection produce less NOx emission as shown in Fig. 1. However, some influenced parameters such as molecular structure and biodiesel properties, adiabatic flame temperature etc were discussed. According to the findings on NOx emission mitigation methods, exhaust gas recirculation (EGR) and delayed injection timing are both reliable and low-cost techniques. Figure 2 (a) and (b) display the effects of different EGR percentages on smoke quality for all pentanol/diesel blends at medium and high loads, respectively. As compared to diesel fuel, smoke emissions for all pentanol/diesel blends remained low at any given EGR rate and both loads. Among these strategies, EGR reduces NOx emissions in bio fuelled engines by regulating oxygen intensity and combustion maximum temperature while marginally lowering HC and CO pollutants at a 5–25 % EGR rate.

Keyphrases: Biofuel, Combustion, Emission, Emission mechanism., Emission reduction techniques

@Booklet{EasyChair:6777,
  author = {Abdelgader Agilah Gheidan and Mazlan A. Wahid and Anthony Chukwunonso Opia},
  title = {Emission Mechanism and Investigation of Biofuel Combustion Characteristics at Different Techniques Towards NOx Emission Reduction: an Overview},
  howpublished = {EasyChair Preprint no. 6777},

  year = {EasyChair, 2021}}