Development of Three-Zone Transitional Model for Reciprocating Internal Combustion Engine Analysis Using Gasoline
Journal Title: Current Journal of Applied Science and Technology - Year 2017, Vol 25, Issue 6
Abstract
A three-zone model based on the first law of thermodynamics has been developed for analysis of combustion in an Internal Combustion Engine. The three zones included an unburned zone, burned zone and transitory zone which is a mixture of burned and unburned gases. The model was used to analyse an SI engine operating with gasoline fuel. An arbitrary constant for each of fractional burnt zone (CC2) and fractional unburned zone (CC1) leakages was varied using 0.0005, 0.00025, 0.001, 0.002, 0.005, 0.1 and 0.5. The engine operating conditions were set at a speed of 2000 rpm, -35bTDC ignition time and burn duration at 600. The obtained indicated mean effective pressure (IMEP), thermal efficiency (η), cylinder pressure and emission characteristics from the developed model and those of two zone analysis were both compared with literature values. Most favourable results were observed at CC1 and CC2 values of 0.00025 and 0.005 respectively. We can conclude the 3zone model predicts better the IMEP, η, and peak cylinder pressure. However, no significant change was observed in values of emission characteristics of the 2zone and 3zone models. It is worthy of note that the number of zones affects engine performance evaluation and the higher the computational zone the better the engine prediction.
Authors and Affiliations
A. A. Dare, O. S. Ismail, O. B. Olatunde
Keywords
Related Articles
- EP ID EP319069
- DOI 10.9734/CJAST/2017/39007
- Views 111
- Downloads 0
Cloud Computing: New Opportunities or New Risks? How to Mitigate Cloud Risks in Oil & Gas Industry
The recent emergence of cloud computing has drastically changed general perception of infrastructure architectures, software delivery and development models. Rapid transition towards the cloud environment, has fuelled co...
Design and Analysis of Carbon Fiber Reinforced Composite Shell Structure Using Classical Laminate Plate Theory
The main focus of this project is to understand the nature of these laminated composites when subjected to specific damage cases like loads. In order to understand the progression of the failure modes in a laminated comp...
Supersalts Na2AlX5 (X = F, Cl): Quantum Chemical Study of the Structure, Vibration Spectra and Thermodynamic Properties
Theoretical investigation, prediction and design of novel supersalts Na2AlX5 (X = F, Cl) have been performed. The formation of the supersalts was considered through association reactions between different building blocks...
Geochemical Characterization and Protolith of the Migmatite-Gneisses of Tandama Area, Katsina State, NW Nigeria
Migmatite-gneisses, which include migmatite, granite gneiss, and augen gneiss, underlie more than 70% of Tandama area, in North-western Nigeria. They are associated with schists, and are intruded by granites and pegmatit...
Design of Adaptive Control System Based on Model Reference Stick Slip Vibration
The stick-slip vibration is a common vibration mode of the drill string system during the drilling and it is extremely destructive. The drilling efficiency will be greatly reduced, if the drill gets a bit damaged and the...