Transformation of Existing SI Engine to Work with Pressurized Air

2020 ◽  
Vol 6 (11) ◽  
pp. 79-86
Author(s):  
P.Srinivas Reddy
Keyword(s):  
Environmentally Friendly ◽  
Power Source ◽  
Si Engine ◽  
Maximum Capacity ◽  
Engine Piston ◽  
Engine Design ◽  
Engine Cylinder ◽  
Fundamental Process ◽  
Center Position ◽  
Efficient Power

This project is an attempt to highlight the various possibilities of acquiring an environmentally friendly and efficient power source. The use of high pressure, expanding gas, to power the engine piston is the fundamental process in the function of all engines with reciprocating pistons. In this project we have used highly pressurized gas to cause reciprocation of the piston and thereby produce power. This gas is introduced into the engine cylinder at the Top Dead Center position of the piston through a timing valve, thereby giving the gas the maximum capacity to impart its force on the piston. The emission from this process is nil and 100% environmentally friendly. We have shown that with the smallest of changes in our existing engine design we can incorporate this technology in our present modes of transportation. The simple yet dramatic change brought by this system is according to us the most significant aspect of our invention. We have shown a positive way of implementing this technology and as always with any system; this has tremendous potential for improvement and perfection

scholarly journals Fully transient stretchable fruit‐based battery as safe and environmentally friendly power source for wearable electronics

EcoMat ◽  
2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Zifeng Wang ◽  
Xue Li ◽  
Zijie Yang ◽  
Hongchen Guo ◽  
Yu Jun Tan ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
Power Source ◽  
Wearable Electronics

scholarly journals Induced Effects of Environmentally Friendly Generations in Korea

2021 ◽  
Vol 13 (8) ◽  
pp. 4404
Author(s):  
Ji Whan Kim ◽  
Yoon Kyung Kim
Keyword(s):  
Wind Power ◽  
Environmentally Friendly ◽  
Energy Transition ◽  
Power Source ◽  
Economic Effects ◽  
Offshore Wind ◽  
Major Power ◽  
Power Sources ◽  
Onshore Wind ◽  
Production Effect

This study estimated the induced effects of LNG, mega PV (photovoltaic), small PV, onshore wind and offshore wind power, which will be used as major power sources under the Korea’s energy transition policy. The 2015 Input–Output Statistics of Bank of Korea were used to reflect Korea’s economic structure. The MCI (manufacture, construction and installation) and O&M (operation and maintenance) of each power source would have different effects, so in the analysis the MCI and O&M of each power source were distinguished. According to estimation results, the induced-effect coefficients of the MCI are greater than those of the O&M in every power source. The induced production effect coefficient of the MCI is decreased in the order of mega PV > small PV > LNG power > offshore wind > onshore wind. The induced production effect coefficient of the O&M is decreased in the order of mega PV > small PV > onshore wind > offshore wind > LNG thermal. The induced employment coefficient of the MCI is decreased in the order of LNG thermal > mega PV > small PV > onshore wind > offshore wind. PV power and wind power have bigger induced effects and bring economic effects in Korean economy. The carbon neutrality and energy transition policies implemented by Korea have a certain level of induced effects and offset the burden of transition costs even if existing power sources are replaced with environmentally friendly power sources.

Thermodynamic Analysis of a Multi-Fueled Single Cylinder SI Engine

2011 ◽  
Author(s):  
M. Z. Haq ◽  
M. R. Mohiuddin
Keyword(s):  
Thermodynamic Analysis ◽  
Chemical Properties ◽  
Second Law Of Thermodynamics ◽  
Second Law ◽  
Si Engine ◽  
Gaseous Species ◽  
Single Cylinder ◽  
Engine Cylinder ◽  
Si Engines

The paper presents a thermodynamic analysis of a single cylinder four-stroke spark-ignition (SI) engine fuelled by four fuels namely iso-octane, methane, methanol and hydrogen. In SI engines, due to phenomena like ignition delay and finite flame speed manifested by the fuels, the heat addition process is not instantaneous, and hence ‘Weibe function’ is used to address the realistic heat release scenario of the engine. Empirical correlations are used to predict the heat loss from the engine cylinder. Physical states and chemical properties of gaseous species present inside the cylinder are determined using first and second law of thermodynamics, chemical kinetics, JANAF thermodynamic data-base and NASA polynomials. The model is implemented in FORTRAN 95 using standard numerical routines and some simulation results are validated against data available in literature. The second law of thermodynamics is applied to estimate the change of exergy i.e. the work potential or quality of the in-cylinder mixture undergoing various phases to complete the cycle. Results indicate that, around 4 to 24% of exergy initially possessed by the in-cylinder mixture is reduced during combustion and about 26 to 42% is left unused and exhausted to the atmosphere.

scholarly journals Thermal cycle of SI engine modeling with initial swirl proces into consideration

2008 ◽  
Vol 132 (1) ◽  
pp. 56-61
Author(s):  
Wojciech TUTAK
Keyword(s):  
Numerical Modelling ◽  
Thermal Cycle ◽  
Piston Engine ◽  
Si Engine ◽  
Engine Modeling ◽  
Engine Cylinder ◽  
Initial Charge ◽  
Experimental Researches

Results of numerical modelling the initial charge swirl in piston engine cylinder and the influence of swirl profile on engine thermal cycle parameters have been presented in the paper. The shape of initial swirl profile of modelled engine was determined on the basis of the experimental researches. It was taken into consideration because the proper level of turbulence before the initiation of combustion is very important for engine work. The research was conducted using KIVA-3V software.

SI-Engine Design Concept for Reducing Cyclic Variations

2005 ◽  
Author(s):  
Ken Naitoh ◽  
Yuji Kaneko ◽  
Kazuya Iwata
Keyword(s):  
Design Concept ◽  
Si Engine ◽  
Engine Design ◽  
Cyclic Variations

scholarly journals The Design of Simple Environmentally Friendly A coal Gasifier in Small Scale with Maximum Capacity of 2 Kgs/Hour

2021 ◽  
Vol 10 (4) ◽  
pp. 2898-2902
Keyword(s):  
System Design ◽  
Coal Gasification ◽  
Environmentally Friendly ◽  
Gas Production ◽  
Ratio Method ◽  
Small Scale ◽  
Maximum Capacity ◽  
Low Calorie ◽  
Coal Fuel ◽  
Gas Fuel

The design of a a coal gasification system is a workable unit or device whose work principle to change a coal fuel that has low-calorie value to be gas with a coal gasification system. Gas which is produced from a coal gasification system is a clean gas and environmentally friendly that its gasifier unit is used. The gasification process can be defined as the building process of gas fuel (CO, H2, and N2) in a small sump from a chemical reaction solid fuel characteristically Carbonaceous or Cellulosic, for example, coal, wood, and agriculture rubbish. Reaction process of gasification a chemical going on complexly, with the step as follows: drying, oxidation, and reduction. The aim of making a coal gasification system design is for using gas fuel as replaced solar fuel in the industry. For long time which will be got in this research is the use of a coal that has low-calorie value gasification system design on a big scale with a maximum capacity of more than 50 kgs/hour. The method which is used in this research is the design method and ratio method suitable with the gas that has been produced and go on with designing and existing of a the coal gasification system. The result from this research is drawing design of a coal gasification system and gas production as big as 0,5 kg from burning of a coal fuel as 2 kgs, already formed a fire on the stove, the gas temperature can reach T3 at 400°C and gas pressure is 0,88 Atm.

Tumble and Swirl Quantification within a Motored Four-Valve SI Engine Cylinder Based on 3-D LDV Measurements

1997 ◽  
Author(s):  
Kasser Jaffri ◽  
Hans G. Hascher ◽  
Mark Novak ◽  
Keunchul Lee ◽  
Harold Schock ◽  
...  
Keyword(s):  
Si Engine ◽  
Engine Cylinder
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