... related to the compression ratio, and engine knock occurs more easily if the compression ratio is increased In order to fully understand the knock phenomenon and to find possible way to avoid knock ... fuel and engine design The present work involves a theoretical approach to develop a computational model of combustion in SI engine in order to underst...
Ngày tải lên: 05/09/2013, 15:28
Báo cáo y học: "Lifetime health effects and medical costs of integrated stroke services - a non-randomized controlled cluster-trial based life table approach"
... the characteristics of the EDISSE study population Disability-stratified stroke life- table A life- table approach was applied to extrapolate the trial findings and to arrive at estimates of lifetime ... 3% and 0% discounting rates for both costs and health effects Results Lifetime costs and health effects Table presents the average (half) yearly costs a...
Ngày tải lên: 25/10/2012, 10:35
Báo cáo y học: "Comparison between single antiplatelet therapy and combination of antiplatelet and anticoagulation therapy for secondary prevention in ischemic stroke patients with antiphospholipid syndrome"
... focused on the secondary prevention of stroke with APS, and compared single antiplatelet therapy and a combination of antiplatelet and anticoagulation therapy in ischemic stroke patients with APS The ... Int J Med Sci 2010, with APS We therefore compared single antiplatelet therapy and a combination of antiplatelet and anticoagulati...
Ngày tải lên: 26/10/2012, 09:48
Effect of unsaturated fatty acid esters of biodiesel fuels on combustion, performance and emission characteristics of a DI diesel engine
... investigating the relationship between percentage of unsaturation, maximum heat release rate and peak pressure for karanjia biodiesel Biodiesel of karanjia has a lower percentage of unsaturation and ... relatively higher in mahua biodiesel than that of biodiesel of palm In addition to unsaturation, ignition delay increases with fuel density and iodine value The effect...
Ngày tải lên: 05/09/2013, 15:28
Ecological performance of a generalized irreversible Carnot heat engine with complex heat transfer law
... results of irreversible Carnot heat engine with linear phenomenological heat transfer law [54, 57] If n = , they are the results of irreversible Carnot heat engine with radiative heat transfer law ... optimal ecological performance of the Carnot heat engine with heat resistance and heat leakage ( m ≠ 0, n ≠ 0, q > 0, Φ = ), and optimal ec...
Ngày tải lên: 05/09/2013, 15:28
Performance characteristic of energy selective electron (ESE) heat engine with filter heat conduction
... 40] are obtained with out considering the heat conduction of the filter due to the propagation of phonons So far, the optimum performance of the ESE heat engine with filter heat conduction via ... heat engine model with heat conduction of the energy filter via phonons, and to analyze the optimum performance of the model as well as the influence...
Ngày tải lên: 05/09/2013, 15:28
Hamilton–Jacobi–Bellman equations and dynamic programming for power-optimization of radiative law multistage heat engine system
... 100 of heat engines are shown with the step of in Figures 7-9 Table lists optimization results of the key parameters of the multistage endoreversible heat engine system with the radiative heat ... Wi of each stage heat engine versus the stage i for Newtonian heat transfer law (fixed T1 f ) Table Optimization results of the key parameters of the multistag...
Ngày tải lên: 05/09/2013, 15:28
Finite time exergoeconomic performance optimization of a thermoacoustic heat engine
... Ceperly P H Gain and efficiency of a traveling wave heat engine J Acoust.Soc Am., 1982, 7(3): 1239-1243 [3] Yazaki T, Iwata A, mackawa T and Tominaga A Traveling wave thermoacoustic engine in a looped ... / F1 and FT = F1 + F2 Here, the total heat transfer surface area FT of the two heat exchangers is assumed to be a constant (3) There is a constant rate of heat...
Ngày tải lên: 05/09/2013, 16:10
The effect of EGR rates on NOX and smoke emissions of an IDI diesel engine fuelled with Jatropha biodiesel blends
... reduction in NOX emission and increase in smoke, CO and HC emissions [3-5] Pradeep & Sharma [3] investigated the effects of hot EGR along with JB100 (100% Jatropha biodiesel) on engine performance and ... CO and unburned HC emissions The aim of the current study is to investigate the effect of EGR on performance parameters and exhaust emissions...
Ngày tải lên: 05/09/2013, 16:11
A computational study to investigate the effects of insulation and EGR in a diesel engine
... of insulation of an IDI diesel engine The indicated power increased at the adiabatic case 30% and 22.5% in part and full loads respectively Although in the EGR applying case, performance characteristics ... also worked as a Professor and Head of department in the Department of Mechanical Engineering, Vidya Vikas Institute of Technology, Andhra Pradesh,...
Ngày tải lên: 05/09/2013, 16:11
An experimental investigation of performance and exhaust emission of a diesel engine fuelled with Jatropha biodiesel and its blends
... supply large volume of biodiesel, in fact, nearly half a dozen states of India have reserve a total of 1.72 million hectares of land for Jatropha cultivation and small quantities of Jatropha biodiesel ... some unreacted remainder of methanol and catalyst which if not removed can react and damage storing and fuel carrying parts During washing ester present react...
Ngày tải lên: 05/09/2013, 16:11
Theoretical modeling of combustion characteristics and performance parameters of biodiesel in DI diesel engine with variable compression ratio
... S.K Bhatti, Effect of soybean oil biofuel blending on the performance and emissions of diesel engine using diesel- rk software, International journal of engineering science and technology, 4539-4555, ... TDC than diesel fuel The pressure of cylinder for both diesel and biodiesel comes into agreement with the results obtained by Diesel- rk software [7] 100 Diesel...
Ngày tải lên: 05/09/2013, 16:11
Effect of injection timing on combustion and performance of a direct injection diesel engine running on Jatropha methyl ester
... Jindal, B.P Nandwana, N.S Rathore and V Vashistha Experimental investigation of the effect of compression ratio and injection pressure in a direct injection diesel engine running on Jatropha methyl ... pp 343-350 D Agarwal and A. K Agarwal Performance and emissions characteristics of Jatropha oil (preheated and blends) in a direct injection com...
Ngày tải lên: 05/09/2013, 16:11
Optimization of injection timing and injection pressure of a DI diesel engine fueled with preheated rice bran oil
... operation shows a higher and with rice bran oil shows a lower efficiency as compared to the rest of the fuels The magnitude of the preheated rice bran oil falls between rice bran oil and rice bran ... Deepak Agarwal, Avinash Kumar Agarwal, Performance and emissions characteristics of Jatropha oil (preheated and blends) in a direct injection c...
Ngày tải lên: 05/09/2013, 16:11