Comparative study on different water/steam injection layouts for fuel reduction in a turbocompound diesel engine

2018 ◽  
Vol 171 ◽  
pp. 1487-1501 ◽  
Author(s):  
Rongchao Zhao ◽  
Zhongbo Zhang ◽  
Weilin Zhuge ◽  
Yangjun Zhang ◽  
Yong Yin
Keyword(s):  
Diesel Engine ◽  
Comparative Study ◽  
Steam Injection ◽  
Fuel Reduction ◽  
Water Steam

scholarly journals An Economical Evaluation of the Water/Steam Injection in a CHP Microturbine Cycle

2012 ◽  
Vol 5 (2) ◽  
pp. 20-25 ◽  
Author(s):  
D. N. Loujendi ◽  
◽  
K. A. Sani ◽  
A. A. Tofigh ◽  
A. Majidian ◽  
...  
Keyword(s):  
Steam Injection ◽  
Water Steam ◽  
Economical Evaluation

scholarly journals Simulation of performance and nitrogen oxide formation of a hydrogen-enriched diesel engine with the steam injection method

2015 ◽  
Vol 19 (6) ◽  
pp. 1985-1994 ◽  
Author(s):  
Guven Gonca ◽  
Bahri Sahin
Keyword(s):  
Diesel Engine ◽  
Engine Performance ◽  
Steam Injection ◽  
Combustion Model ◽  
Enrichment Method ◽  
Injection Method ◽  
Positive Effects ◽  
Effective Efficiency ◽  
Hydrogen Enrichment ◽  
No Emissions

In the present study, steam injection method (SIM) is implemented to a hydrogen-enriched diesel engine in order to improve the levels of performance and NO emissions. As hydrogen enrichment method increases effective efficiency, NO emissions could be increased. However, the SIM is used to control NO emissions and improve the engine performance. Due to these positive effects, hydrogen enrichment and the SIM)are applied into a diesel engine by using a two-zone combustion model for30% hydrogen enrichment of the fuel volume and 20% steam ratio of the fuel mass at full load conditions. The results obtained are compared with conventional diesel engine (D), steam injected diesel engine (D+S20), hydrogen-enriched diesel engine (D+H30) and hydrogen-enriched diesel engine with steam injection (D+H30+S20) in terms of performance and NO emissions. In the results, the effective efficiency and effective power improve up to 22.8% and %3.1, as NO emissions decrease up to 22.1%. Hence, the hydrogen enrichment with steam injection method is more environmentally friendly with better performance.

scholarly journals Investigation of thermal model effects on geothermal and oil reservoir well testing behavior during water and steam injection

2020 ◽  
Vol 75 ◽  
pp. 58
Author(s):  
Mahdi Abbasi ◽  
Mohammad Ahmadi ◽  
Alireza Kazemi ◽  
Mohammad Sharifi
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Fluid Flow ◽  
Steam Injection ◽  
Model Parameters ◽  
Transfer Model ◽  
Diffusivity Coefficient ◽  
Reservoir Model ◽  
Type Curve ◽  
Water Steam

Global warming and reducing fossil fuel resources have increased the interest in using renewable resources such as geothermal energy. In this paper, in the first step, heat transfer equations have been presented for reservoir during water (steam) injection by considering heat loss to adjacent formations. According to radius of thermal front, the reservoir is partitioned into two regions with different fluid physical properties. The heat transfer model is coupled with a fluid flow model which is used to calculate the reservoir pressure or fluid flow rates. Then by calculating outer radius of heated region and using radial composite reservoir model, the fluid flow equations in porous media are solved. Using pressure derivative plot in regions with different thermal conductivity coefficients, a type curve plot is presented. The reservoir and adjacent formation thermal conductivity coefficients can be calculated by matching the observed pressure data on the thermal composite type curve. Additionally, the interference test in composite geothermal reservoir is discussed. In the composite reservoir model, parameters such as diffusivity coefficient, conductivity ratio and the distance to the radial discontinuity are considered. New type curves are provided to introduce the effect of diffusivity/conductivity contrast ratios on temperature behavior. Improving interpretations, and performing fast computations and fast sensitivity analysis are the benefits of the presented solutions.

A comparative study of performance and regulated emissions in a medium-duty diesel engine fueled with sugarcane diesel-farnesane and sugarcane biodiesel-LS9

Energy ◽  
2019 ◽  
Vol 176 ◽  
pp. 392-409 ◽  
Author(s):  
Felipe Soto ◽  
Gian Marques ◽  
E. Torres-Jiménez ◽  
Bráulio Vieira ◽  
André Lacerda ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Comparative Study
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