Design of the Motorcycle Engine Fuel Supplying System Based on the Ultrasonic Atomization

2013 ◽  
Vol 779-780 ◽  
pp. 1143-1146
Author(s):  
Ming Rong Zhang ◽  
Zhang Wei Fan ◽  
Yong Liu ◽  
Ming Hui Liang ◽  
Xiao Wei Wen

A set of fuel supply system, in place of the carburetor, based on ultrasonic atomization is designed. The fuel for the new system which is atomized into micron grade fog grain with ultrasonic system, increases the fuel and air mixing contact area, make the fuel mix more uniform. The experimental results shows that the HC and CO conce-ntration in tail gas of new system has significantly lower,and CO2 is increased, which demonstrates the fuel burning more fully, achieve the effect of energy saving and emission reduction. The cost is quite to carburetor type.

2022 ◽  
Vol 9 ◽  
Author(s):  
Fuqiang Wang ◽  
Huimin Li ◽  
Yongchao Cao ◽  
Chengyi Zhang ◽  
Yunlong Ran

Knowledge sharing (KS) in the green supply chain (GSC) is jointly determined by the KS efforts of suppliers and manufacturers. This study uses the differential game method to explore the dynamic strategy of KS and the benefits of emission reduction in the process of low carbon (LC) technology in the GSC. The optimal trajectory of the knowledge stock and emission reduction benefits of suppliers and manufacturers under different strategies are obtained. The validity of the model and the results are verified by numerical simulation analysis, and the sensitivity analysis of the main parameters in the case of collaborative sharing is carried out. The results show that in the case of centralized decision-making, the KS efforts of suppliers and manufacturers are the highest, and the knowledge stock and emission reduction benefits of GSC are also the best. The cost-sharing mechanism can realize the Pareto improvement of GSC’s knowledge stock and emission reduction benefits, but the cost-sharing mechanism can only increase the supplier’s KS effort level. In addition, this study found that the price of carbon trading and the rate of knowledge decay have a significant impact on KS. The study provides a theoretical basis for promoting KS in the GSC and LC technology innovation.


1993 ◽  
Vol 71 (7-8) ◽  
pp. 307-315 ◽  
Author(s):  
P. Cova ◽  
R. A. Masut ◽  
R. Lacoursière ◽  
A. Bensaada ◽  
C. A. Tran ◽  
...  

We have realized a new system for treating gaseous wastes from a metallorganic vapour phase epitaxy (MOVPE) reactor used for the low pressure epitaxial growth of intrinsic and doped semiconducting crystals in the InGaAsP family. The system is based on a series of 5 successive phases of destruction: dilution, combustion pyrolysis, condensation and filtering. The design minimizes the cost remarkably and optimizes the incineration of toxic gases. After the combustion of 138 m3 of H2 and the incineration of 276 L of phosphine, we observe that the reaction chamber does not show any corrosion nor any deposit of chemical products, which are daily eliminated together with the water produced during the combustion. For the maximum phosphine concentration that has been used (7340 ppm), no phosphine concentration has been detected in the output with a detecting system having a sensitivity of 0.001 ppm. For the total fluxes entering the reaction chamber (10–25 L/min), the transit time (1s) of gas molecules does not limit the efficiency of conversion of toxic gases. This is important if one wishes to adapt this system to a MOVPE production reaction using a higher flux of phosphine.[Journal translation]


Author(s):  
Pantelis Capros ◽  
Panagiotis Georgakopoulos ◽  
Denise Van Regemorter ◽  
Stef Proost ◽  
Tobias F. N. Schmidt ◽  
...  

Author(s):  
Rajasekaran Rajkumar

The increasing number of problems that need to be addressed in the hospital sector calls for innovation in this field. It brings us the need to find cost-effective and memory-efficient solutions to handle the vast data and sector it into essential information to operate on the patient. There used to be many systems to manage clinical records which are fixed at a place. It is quite complicated to get the information and make this data available at a patient's bedside. This leads to a considerable amount of wasted time in moving to those storage PCs and also the cost afforded is comparatively high. A computer system that controls and accomplishes all the data in the hospital database to provide effective healthcare is called hospital information system (HIS). The introduction of HIS made billing and inventor easier for the staff. This paper discusses diverse methods that improve the cost, demands of HIS, and provide techniques to function efficiently using wireless networks. Also, the paper gives a comparative study on different aspects such as cost, quality of service, transportation, and security. A new system is proposed by combining the wireless healthcare system along prioritized alert notification.


2010 ◽  
Vol 12 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Aundrea Kell ◽  
Shari Pierre ◽  
Bogdan Hoanca

This case describes the implementation of an online travel management system at FED-AK, the Alaska office of a U.S. government agency. The previous system was intended to accomplish the same functionality, but due to employee resistance, it was used only as a forms generator in conjunction with a paper- and mail-based process. The new system is integrated, which compels employees to use all the functionality provided. It also incorporates many lessons learned from the old system—in particular, extensive training and online help functions. The system is expected to significantly reduce the cost of travel by minimizing errors, enforcing policies, and reducing transaction costs. The system will also lead to faster reimbursement of employee travel expenses.


Kybernetes ◽  
2018 ◽  
Vol 49 (4) ◽  
pp. 1143-1167 ◽  
Author(s):  
Qinqin Li ◽  
Yujie Xiao ◽  
Yuzhuo Qiu ◽  
Xiaoling Xu ◽  
Caichun Chai

Purpose The purpose of this paper is to examine the impact of carbon permit allocation rules (grandfathering mechanism and benchmarking mechanism) on incentive contracts provided by the retailer to encourage the manufacturer to invest more in reducing carbon emissions. Design/methodology/approach The authors consider a two-echelon supply chain in which the retailer offers three contracts (wholesale price contract, cost-sharing contract and revenue-sharing contract) to the manufacturer. Based on the two carbon permit allocation rules, i.e. grandfathering mechanism and benchmarking mechanism, six scenarios are examined. The optimal price and carbon emission reduction decisions and members’ equilibrium profits under six scenarios are analyzed and compared. Findings The results suggest that the revenue-sharing contract can more effectively stimulate the manufacturer to reduce carbon emissions compared to the cost-sharing contract. The cost-sharing contract can help to achieve the highest environmental performance, whereas the implementation of revenue-sharing contract can attain the highest social welfare. The benchmarking mechanism is more effective for the government to prompt the manufacturer to produce low-carbon products than the grandfathering mechanism. Although a loose carbon policy can expand the total emissions, it can improve the social welfare. Practical implications These results can provide operational insights for the retailer in how to use incentive contract to encourage the manufacturer to curb carbon emissions and offer managerial insights for the government to make policy decisions on carbon permit allocation rules. Originality/value This paper contributes to the literature regarding to firm’s carbon emissions reduction decisions under cap-and-trade policy and highlights the importance of carbon permit allocation methods in curbing carbon emissions.


Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2995 ◽  
Author(s):  
Łukasz Warguła ◽  
Mateusz Kukla ◽  
Piotr Krawiec ◽  
Bartosz Wieczorek

Alternative fuel within the meaning of Directive 2014/94/EU is, among others, LPG (liquefied petroleum gas), characterized by a lower purchase cost and lower emissions of toxic exhaust compounds in comparison to the combustion of classic gasoline. In wood chippers, intended for chopping branches, with low-power internal combustion engines that meet the emission standards in force in 2019 in the European Union, in accordance with Regulation 2016/1628/EU, carburetor fuel supply systems are commonly used. Innovative trends in the development of these drives are: electronic fuel injection, systems supporting the adaptation of the working elements to the conditions of use and the use of alternative fuels. The first two solutions significantly affect the cost of purchasing a power unit or modernizing it. The authors of this article indicate, as a beneficial alternative, a cheap (EUR 105) possibility of modernizing the carburetor fuel supply system. It is based on a modification that will allow for the use of LPG instead of gasoline to drive the working system of the wood chipper. This article presents the results of tests on the fuel consumption of a wood chipper powered with gasoline (3.04 L h−1) and LPG (3.65 L h−1) during continuous chipping. The cost of an hour of chipping related to fuel consumption was determined, which was equal to 3.89 € h−1 while using gasoline, and 2.19 € h−1 when using LPG. The mass flow rate (0.66 t h−1) and volumetric flow rate (3.5 m3 h−1) of a wood chipper powered by a low-power (9.5 kW) internal combustion engine with spark ignition were determined. In addition, we determined the cost of producing 1 m3 of biomass from chipping freshly cut oak branches (Quercus robur L. Sp. Pl. 996 1753) with a maximum diameter of 80 mm and a humidity of 25%. The branches were selected earlier in such a way that their dimensions as as similar as possible. This amounted to EUR 1.11 for a gasoline-powered drive and EUR 0.63 for a LPG powered one. The benefits of using an alternative fuel supply system, the installation of which increases the cost of the machine by 8.4%, have been confirmed.


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