Cool2Power - Increased petrol engine power and efficiency through an AC driven intercooling system

et al. 2019

IJHVS

Diesel engines convert chemical energy into mechanical energy generally with low efficiency. However, if these engines are operated at optimum levels of input parameters, they can produce power more efficiently with minimum harmful exhaust emissions. The current research work is carried out with an aim to determine these optimum levels of the input parameters. Four input parameters were selected and their optimum combinations were determined using Taguchi based technique for order of preference by similarity to ideal solution (TOPSIS) coupled with Entropy Weight method. Taguchi's L 25 orthogonal array was adopted to perform the experiments. All the test runs were carried out in random manner with three replicates of each to improve the accuracy of the experiments. The preference values (relative closeness of the distinct alternative to the positive ideal solution) predicted by Taguchi method and the values obtained by regression analysis, at optimum input parameter settings were compared and a good relationship was found between them.

Section: Introductionmentioning

confidence: 99%

Application of the Taguchi based entropy weighted TOPSIS method for optimisation of diesel engine performance and emission parameters

et al. 2019

IJHVS

“…2 However, from the literature review it has been found that researchers have tried to cool the air before supplying it to the engine to compensate the density loss but exact temperature range, up to which the air should be cooled, has not been reported. 3–6 Yang et al 7 carried out analysis on altitude adaptability of turbocharging systems for diesel engines. They concluded that an engine with variable geometry turbocharger can be operated up to 4.5 km with only 9% output power reduction and 3.8% brake-specific fuel consumption (BSFC) increase compared to the values at 2200 r/min at sea level.…”

Section: Introductionmentioning

confidence: 99%

Optimization of diesel engine input parameters for reducing hydrocarbon emission and smoke opacity using Taguchi method and analysis of variance

et al. 2018

Energy & Environment

The aim of this paper is to optimize the input parameters of diesel engine with respect to hydrocarbon emission and smoke opacity through experimentation and Taguchi approach. Four parameters, namely, compression ratio, fuel injection timing, air temperature, and air pressure were varied at five different levels and their effect on hydrocarbon emission and smoke opacity under no load, half load, and full load conditions were recorded. The optimum combination of control/input parameters leading to the optimum values of performance parameters/response variables, were determined using signal-to-noise ratio, analysis of means, and analysis of variance. Confirmation tests were performed to check the validity of the results, which revealed good agreement between the predicted and the experimental values of the response variables at optimum combination of the input parameters.

“…While undertaking a literature review, it was hard to find any article that focused on optimizing the temperature or pressure of turbocharged air. It has been observed that researchers have tried to cool the air before supplying it to the engine to compensate for the density loss, but the exact temperature range up to which the air should be cooled has not been reported (Kadunic et al, 2014;Liew et al, 2012;Mostafavi and Agnew, 1996;Muqeem and Kumar, 2013). The extant literature reveals that studies pertaining to the optimization of the input parameters of diesel engines to improve their performance or exhaust emissions are very few.…”

Section: Introductionmentioning

confidence: 99%

Taguchi-based combined grey relational and principal component analyses for multi-response optimization of diesel engines

et al. 2017

Purpose Diesel engine can produce power more efficiently with lower exhaust emissions when operated at optimum input parameter settings. To achieve this goal, the purpose of this paper is to optimize the input parameters of diesel engine which will lead to optimum performance and exhaust emissions. Design/methodology/approach To achieve the goal of improving diesel engine performance and exhaust emissions, four input parameters were considered in the study. Five different levels of each input parameter were taken. Four response variables under no load, half load and full load conditions were recorded. Experiments were performed in random manner according to selected Taguchi L25 orthogonal array. The data were analyzed using grey relational analysis coupled with principal component analysis. Analysis of S/N ratio was performed to obtain the optimum combination of input parameters. The grey relational grade at optimum setting of the input parameters was obtained by regression analysis. Findings Results of the current research work give the optimum input parameter settings for no load, half load and full load conditions of diesel engine. Engine produces power more efficiently with low exhaust emissions when operated at these optimum settings. Practical implications In view of the compliance to the stringent air pollution norms of the nations and fast depleting fossil fuels, it is of the utmost importance to design and operate the engine in the optimum range of its input parameters so that it produces more power with low exhaust emissions. This paper aims at optimizing input parameters of diesel engine to improve performance and exhaust emissions. Results of the study presented in this paper are significantly useful for diesel engine-related researchers and professionals. Originality/value From the literature review, it appears that only few researchers have conducted studies pertaining to the optimization of the input parameters of diesel engine to improve performance or exhaust emissions. Although few studies related to the optimization of compression ratio, fuel injection timing, fuel injection pressure and air pressure have been reported, no work related to optimization of temperature and pressure of turbocharged air has been reported. Therefore, the main focus of the current research work is on optimizing the charge air temperature and pressure with respect to performance and exhaust emissions.