Numerical Investigations on the Combustion Characteristics of N-Heptane Spray under Premixed Ethanol and Iso-Octane Atmosphere in a Combustion Vessel

2017 ◽  
Author(s):  
Shijun Dong ◽  
Xiaobei Cheng ◽  
Biao Ou ◽  
Can Yang ◽  
Zhaowen Wang ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Numerical Investigations ◽  
Combustion Vessel

scholarly journals Numerical Investigations of Micro-Scale Diffusion Combustion: A Brief Review

2019 ◽  
Vol 9 (16) ◽  
pp. 3356 ◽  
Author(s):  
P. R. Resende ◽  
Mohsen Ayoobi ◽  
Alexandre M. Afonso
Keyword(s):  
Alternative Fuels ◽  
Numerical Models ◽  
Scientific Progress ◽  
Combustion Characteristics ◽  
Operating Conditions ◽  
Critical Parameters ◽  
Diffusion Combustion ◽  
Great Opportunity ◽  
Numerical Investigations ◽  
Numerical Approaches

With the increasing global concerns about the impacts of byproducts from the combustion of fossil fuels, researchers have made significant progress in seeking alternative fuels that have cleaner combustion characteristics. Such fuels are most suitable for addressing the increasing demands on combustion-based micro power generation systems due to their prominently higher energy density as compared to other energy resources such as batteries. This cultivates a great opportunity to develop portable power devices, which can be utilized in unmanned aerial vehicles (UAVs), micro satellite thrusters or micro chemical reactors and sensors. However, combustion at small scales—whether premixed or non-premixed (diffusion)—has its own challenges as the interplay of various physical phenomena needs to be understood comprehensively. This paper reviews the scientific progress that researchers have made over the past couple of decades for the numerical investigations of diffusion flames at micro scales. Specifically, the objective of this review is to provide insights on different numerical approaches in analyzing diffusion combustion at micro scales, where the importance of operating conditions, critical parameters and the conjugate heat transfer/heat re-circulation have been extensively analyzed. Comparing simulation results with experimental data, numerical approaches have been shown to perform differently in different conditions and careful consideration should be given to the selection of the numerical models depending on the specifics of the cases that are being modeled. Varying different parameters such as fuel type and mixture, inlet velocity, wall conductivity, and so forth, researchers have shown that at micro scales, diffusion combustion characteristics and flame dynamics are critically sensitive to the operating conditions, that is, it is possible to alter the flammability limits, control the flame stability/instability or change other flame characteristics such as flame shape and height, flame temperature, and so forth.

scholarly journals Numerical investigations on combustion characteristics, NO and CO emission of Gas Instantaneous Water Heater with partial premixed combustion

2019 ◽  
Vol 158 ◽  
pp. 1372-1379
Author(s):  
Xintong Ma ◽  
Huan Zhang ◽  
Shijun You ◽  
Xuejing Zheng ◽  
Qingwei Miao ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Premixed Combustion ◽  
Water Heater ◽  
Numerical Investigations ◽  
Co Emission

Investigations on the effects of premixed ethanol/air atmosphere on combustion characteristics of n-heptane spray in a combustion vessel

Fuel ◽  
2018 ◽  
Vol 233 ◽  
pp. 247-256 ◽  
Author(s):  
Shijun Dong ◽  
Zhaowen Wang ◽  
Can Yang ◽  
Biao Ou ◽  
Liang Qiu ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Air Atmosphere ◽  
Combustion Vessel
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