Effects Of Exhaust Gas Recirculation Research Articles

Knock Mitigation Effectiveness of EGR across the Pressure-Temperature Domain

<div class="section abstract"><div class="htmlview paragraph">Exhaust gas recirculation (EGR) has been shown to enable efficiency improvements in SI engines through multiple different mechanisms, including decreasing the knock propensity at high load, which allows higher compression ratio. While many of the benefits of EGR are applicable to both low and high power density engines, including reductions in pumping work and improved specific heat ratio, the knock benefits and corresponding compression ratio increases have been limited to low power density naturally aspirated engines primarily intended for hybrid vehicle architectures. An earlier study [<span class="xref">1</span>] indicated that there may be a kinetic limitation for the ability of EGR to mitigate knock under these conditions, but that study only considered a small number of conditions. This investigation expands on that study while also providing data for model validation for the new light-duty combustion consortium from the U.S. Department of Energy: Partnership for Advancing Combustion Engines (PACE). In this investigation, the effectiveness of EGR to mitigate knock is studied with regards to the effect of engine speed (1,500 and 3,000 rpm), changing trajectory in the pressure-temperature domain by varying the intake manifold temperature (35, 60, and 90 deg C), and by considering the effect of minor species by studying the effect of untreated EGR vs. EGR that has been treated by an automotive three-way catalyst. Additionally, to increase the relevance of these data for future modeling studies, the performance of the full boiling range gasoline was compared relative to a surrogate formulation. The study found that the fuel surrogate performs well, confirmed the kinetic limitations of EGR to mitigate knock under boost, and showed improvements in EGR performance with catalyzed EGR.</div></div>

Effect of exhaust gas recirculation in the performance and emission characteristics of an oxygenated mustard oil biodiesel in a compression ignition engine

ABSTRACT Increase in the unrefined petroleum cost and the spike in interest for raw petroleum in the non-oil creating nations compel them to look for an elective wellspring of fuel to utilize. It has been discovered that the Biodiesel acquired from vegetable oils mixed with diesel can work in the compression ignition engine with no change up to certain volumetric structures. Mustard oil obtained from the plants of Brassica juncea was used to produce biodiesel by trans-esterification strategy. The readied mustard oil biofuel was mixed with diesel in the proportion of 5%, 10%, and 15% and included with Al2O3 nanoparticles as an added substance. The readied tests were tried at a consistent speed Compression Ignition Engine at different loads and compared for emission with that of diesel. It has been found from the outcomes that the carbon monoxide (CO), hydrocarbon (HC), and smoke exhaust diminished and the nitrogen oxides (NOX) outflows expanded with an expansion in the mix. The oxygen content in the mix is the explanation behind the improvement of the ignition procedure and the decrease of the HC, CO, and smoke exhaust. Further a 12% decrease in the NOX emission was achieved with the assistance of the 10% of exhaust gas recirculation.

Effect of injection parameters and EGR on performance and emissions in a CRDI engine fuelled with cashew nut shell biodiesel blend

Stringent emission norms and requirement of energy security facilitate researchers to explore the use of alternate fuels and work on methods to optimise fuel injection parameters. The effects of injection timings (ITs), split injection and exhaust gas recirculation (EGR) on performance and emission characteristics of diesel engine fuelled with cashew nut shell biodiesel blends are investigated. Initially, experiments are conducted with diesel, B5 and B10 with original IT of 14.2° bTDC with direct injection and are considered as base reading. The fuel injection is optimised (at 10.2° bTDC and 15% split injection), and the effect of EGR rate at this optimised condition is analysed. Experiments are conducted with diesel, B5 and B10 with EGR rates of 5%, 10%, 15% and 20% at optimised injection condition for various loads. NOx reduced by 67%, 68% and 56% for diesel, B5 and B10 at full load compared to base readings. Smoke emissions reduced by 3–3.5%, and CO emissions reduced by around 50% for diesel and biodiesel blends at full load.

Effect of exhaust gas recirculation and hydrogen direct injection on combustion and emission characteristics of a n-butanol SI engine

The n-butanol as a clear and renewable biofuel is considered an ideal alternative fuel for SI engines. Hydrogen as a partial alternative fuel can improve the combustion and emissions of SI engine because of its advantages of low ignition energy, fast flame propagation and so no. In order to decrease the additional NOx caused by hydrogen addition, the cooperative effect of EGR and hydrogen direct injection on combustion and emission in an SI n-butanol engine was investigated in this paper. Experiments are conducted at five hydrogen addition ratios (0%, 5%, 10%, 15%, 20%), five EGR ratios (0%, 5%, 10%, 15%, 20%) and three excess air ratios (1, 1.1, 1.2) with 1500 rpm of engine speed. The results indicate that Ttq, Pmax, dQmax and Tmax decrease with the increasing ηEGR and increase with the increasing φH2, while the APmax, AdQmax, θ0–10 and θ10–90 show the contrary tendency. The 15% EGR rate cooperate with 10%~15% hydrogen addition ratio can keep emissions (HC, CO, NOx) better than the original engine. Compared to the original pure butanol engine, the n-butanol engine with hydrogen direct injection and EGR could obtain better comprehensive performance through the coordinated control of φH2 and ηEGR. More specifically, 15% EGR rate cooperated with 10% hydrogen addition ratio can obtain better comprehensive performance of combustion and emission, but there is a little expense on combustion parameters compared to the original engine under λ = 1. So the 15% EGR ratio is considered a superior EGR ratio cooperated with hydrogen addition.

Experimental and numerical study the effect of EGR strategies on in-cylinder flow, combustion and emissions characteristics in a heavy-duty higher CR lean-burn NGSI engine coupled with detail combustion mechanism

In order to study the effects of exhaust gas recirculation (EGR) strategies on in-cylinder flow, performance, combustion and emissions characteristics in a heavy-duty higher compression ratio (CR) lean-burn natural gas spark ignition (NGSI) engine. In the first stage, a detailed three-dimensional (3-D) full-scale cylinder part (including detailed intake port and exhaust port) is established based on the actual combustion chamber. Then some cases were simulated by commercial CFD code coupled with the detailed combustion mechanism and validated against the measured data. In the second stage, a sensitivity analysis of the EGR rate on in-cylinder temperature, emissions under different crank angles in 3-D, and performance of a heavy-duty higher CR (13.6) engine fueled with 99% methane content is discussed. The results show that the production of NOx is related to the mass fraction of high-temperature gas in a specific section of the cylinder. The larger the mass fraction of high-temperature gas, the more NOx emissions are generated. Besides, NOx is generated on the flame front and continuing to be generated inside the flame surface. The faster the temperature inside the flame surface decreases, the smaller the amount of NOx generation is. Furthermore, the model and these data in the paper can be applied to evaluate and optimize the energy distribution by changing different technologies or strategies in the future. In addition, 3-D data can provide a basis for the quantitative relationship between the EGR rate and combustion rate, NOx generation in the format of 1-D.

Experimental and numerical analyses of cold EGR effect on combustion, performance and emissions of natural gas lean-burn engine with pre-chamber combustion system

The pre-chamber combustion system is an attractive strategy to enable the operation of spark-ignition engines in lean conditions and to maintain a suitable combustion process. Also, cold exhaust gas recirculation (EGR) system can be used during air dilution operation to overcome issues of emissions. In this research, an experimental and numerical investigation has been carried out to evaluate the potential of pre-chamber combustion system combining with EGR system. The results show that the use of pre-chamber combustion and cold EGR at the same time in a lean-burn engine considerably reduced mass release of NOx from 8.83 g/kWh to 4.40 g/kWh (50% reduction) and slightly increased CO emission, while it had no significant effect on CO2 emission. The engine output power and IMEP decreased by 3–4% per 5% of cold EGR and the efficiency slightly decreased (lower than 1%). A gradual increase in cold EGR volume from 0% to 20% reduced the indicated work availability and heat loss availability by approximately 1.4%; however, on the contrary, the exhaust gas availability and the combustion irreversibility declined by 1.1% and 1.4%, respectively. Moreover, exergy efficiency decreased from 41.9% to 40.6%, with a slight reduction in entropy generation. The results indicated that an ideal range could be defined for cold EGR in an engine equipped with the pre-chamber combustion system in which pollutant emission is at the lowest level, and the engine output power is maintained to a great extent. The ideal range for the engine used in this study was EGR = 10%.

Experimental investigation and numerical assessment the effects of EGR and hydrogen addition strategies on performance, energy and exergy characteristics of a heavy-duty lean-burn NGSI engine

In order to investigate the influences of hydrogen addition and exhaust gas recirculation (EGR) strategies on performance, combustion, emissions, energy and exergy balance of a lean-burn and high compression ratio (CR) (13.6) natural gas spark ignition (NGSI) engine fueled with 99% methane content is tested on the engine bench under different hydrogen contents. A corresponding 1D GT-Power simulation model is built and validated according to experimental data. In the first stage, both peak cylinder pressure (PCP) and peak heat release rate (HRR) increase with the hydrogen addition but decrease with increased EGR ratio. Besides, EGR addition will retard the effect of various hydrogen contents on performance and combustion of the engine. In the second stage, the NOx emissions increase with hydrogen enrichment but decrease with the increase of EGR rate due to the variation of in-cylinder temperature, which emphasizes effective method of EGR addition strategies to reduce the NOx emissions on the lean-burn NGSI engine fueled with natural gas-hydrogen (HNG). Finally, the change trends of exergy terms are similar to their corresponding energy, but the percentages of heat transfer exergy and exhaust exergy are about 7.05 and 2.61 times lower than their corresponding energy. Furthermore, the simulation model and data in the paper can be applied to evaluate and optimize the energy distribution and performance by changing different technologies, strategies and fuels in the future. What is more, the analysis of the energy and exergy balance can provide a new thought for the future research to improve engine’s performance.

Effect of exhaust gas re-circulation on performance, emission and combustion characteristics of ethanol-fueled diesel engine

Ethanol, as a fuel for compression ignition (CI) engine, has some advantages over diesel fuel, and these include the reduction of soot, carbon monoxide (CO) and unburned hydrocarbon (HC) emissions. However, there are few concerns about ignition properties, and emissions (especially the particulate and NOx). For minimizing the emissions from the ethanol-fueled compression ignition (EFCI) engine, the exhaust gas recirculation (EGR) technique is proposed. In this paper, the EGR technique is used where some amount of the exhaust gas is drawn off from the exhaust system, cooled, and redirected back into the cylinders. The experimental setup of the ethanol-fueled diesel engine (EFDE) with EGR is developed. Using the setup, the performance, emission, and combustion characteristics of EFDE in different scenarios of EGR (ethanol + coating, ethanol + coating+10% EGR, ethanol + coating+20% EGR) were carried out. We observe that the exhaust fills the combustion chamber; however, it is not involved in the combustion reaction that takes place in the cylinder due to its low oxygen content. Hence, the combustion process speed is reduced, with the result that the peak flame temperature in the combustion chamber is lowered. This dramatically affected the characteristics of the EFDE. The obtained results of EFDE scenarios were compared with the diesel scenario. Overall, it is observed that the variation in the %EGR rates has a significant impact on the performance, emission, and combustion characteristics of EFDE.

Effect of EGR on diverse characteristics of diesel engine operated with corn seed biodiesel blend

ABSTRACT Transportation sector and industrialisation both are having a major impact on the economic development and ecological nuisance of any country across the globe. NOx is a highly toxic gas, released from the combustion of diesel fuel. In this current experimental work, controls of NOx emissions are examined by using Exhaust Gas Recirculation (EGR). The investigational unit is operated with corn seed oil biodiesel blend. Performance, combustion and emission features are investigated at different EGR ratios (5%, 10% and 15%, respectively), and results are compared with diesel fuel. From the analysis of the experimental results, it is concluded that NOx emissions are decreased by increasing the EGR ratio. However, a small penalty of engine performance and increased soot formation are observed at a higher EGR ratio. From the experimental test results, it is confirmed that EGR technique implementation generated excellent results for the control of harmful NOx emissions.

Combined Effects of Cooled EGR and Air Dilution on Butanol-Gasoline TGDI Engine Operation, Efficiency, Gaseous, and PM Emissions.

Biobutanol is a promising alternative fuel for spark-ignition engines. Exhaust gas recirculation (EGR) and air dilution were evaluated on a TGDI engine fueled with butanol–gasoline (B20) in view of engine operation, efficiency, gaseous emissions, and PM emissions. For the B20 engine, EGR affected combustion more strongly than excess air dilution; the brake thermal efficiency (BTE) under excess air dilution was much higher than that with EGR. The oxygen concentration in the cylinder was also markedly reduced with EGR relative to air dilution, as the partial fresh charge was substituted with nonreactive gas. A reduced oxygen concentration contributed to differences in combustion between excess air dilution and EGR. Higher BTE was observed during combined EGR and excess air dilution operation, though it was slightly lower than that under excess air dilution alone. NOx was also markedly reduced by the combination of EGR and excess air dilution, but was slightly higher than that with EGR alone. Under combined dilution conditions, the particle number (PN) emissions from the B20 engine were reduced significantly, particle sizes decreased, and the nucleate PN significantly decreased.

Experimental study of effects of exhaust gas recirculation on combustion, performance, and emissions of DME-biodiesel fueled engine

The effects of exhaust gas recirculation (EGR) on the combustion, performance, and emissions of a six-cylinder turbocharged common-rail dimethyl ether engine with biodiesel blends were experimentally investigated. The proportions of biodiesel were 0% (B0), 5% (B5), 10% (B10), 15% (B15) and 20% (B20) by weight, and the effect of the engine load was considered. The results indicate that a higher EGR rate increases the ignition delay and combustion duration. The peak rate of heat release increases as the EGR rate increases at low loads but decreases at high loads. The present investigation shows that the EGR strategy is effective for suppressing NOx formation and the NOx emissions approximately linearly decrease as the EGR rate increases. The retardation of the combustion phase by external EGR effectively reduces the rate of pressure increase. The effect of the biodiesel proportion on the combustion and performance of an engine is complex, and the B5 blend showed the shortest ignition delay and the highest brake thermal efficiency. The influence of the biodiesel proportion on the EGR is not obvious. The disadvantages of EGR and biodiesel addition include the resultant increases in the CO and HC emissions and the particle number concentration.

Comparative study of exhaust gas recirculation (EGR) and hydrogen-enriched EGR employed in a SI engine fueled by biobutanol-gasoline

In this study, hydrogen was added to a isobutanol-gasoline engine during exhaust gas recirculation (EGR) operation. The effects of combined hydrogen-enrichment and EGR (HEGR) were assessed in terms of improvements in engine thermal efficiency and emissions reduction. The results showed that hydrogen had a positive influence on the combustion behaviors of butanol-gasoline during EGR operation, as well as markedly reduced ignition delay and rapid burning duration, which was prolonged significantly when EGR operated alone. There was a higher brake thermal efficiency (BTE) for the butanol-gasoline engine during HEGR, which enhanced the BTE up ~3–4%. Combustion stability was improved while the tendency for slowed burning with EGR was suppressed with hydrogen addition. Wider EGR limits with hydrogen addition was observed due to improved combustion stability. During EGR operation, there were increased unburnt hydrocarbon emissions in butanol-gasoline engine, which was significantly reduced with hydrogen addition. Low NOx emissions were observed during HEGR operation at the high EGR rate, which exhibited effective inhibition regarding particle number emissions including particles in the nucleation and accumulation modes. HEGR was more effective in reducing PM compared to EGR. The particle surface area concentration was significantly reduced with HEGR operation, and the particle size was slightly reduced.

Effect of EGR on emissions of a modified DI compression ignition engine energized with nanoemulsive blends of grapeseed biodiesel

This research work investigates the effect of Exhaust Gas Recirculation (EGR) in a CI engine fueled with Grapeseed oil biodiesel derived from winery biomass waste. As the brake thermal efficiency of any biodiesel are generally lesser compared to diesel, fuel modification and design changes in combustion chamber geometry are made to improve the thermal efficiency. The above strategy not only decrease fuel consumption, but also reduces the engine emissions like HC, CO and NO. To further reduce NO emission that is formed due to high combustion pressure and temperature, EGR technique is used at four different rates, 5%, 10%, 15% and 20% and the optimum rate is decided based on NO soot tradeoff. Engine tests were conducted at various loads to study the performance of nanoemulsive grapeseed biodiesel with modified combustion chamber shape. NO emissions were noticed to increase at high loads. Nano blends of grapeseed oil biodiesel injected at 23°bTDC at 5% EGR rate was found to reduce NO emissions from 8.07 g/kWh to 5.5 g/kWh with a slight compromise in smoke. UBHC and BSCO emissions were reasonably reduced at this EGR rate by 20.7% and 6.2% compared to diesel. The novel finding of this investigation is that biomass derived from winery waste could be a viable fuel for CI engines with suitable engine modifications.

Effect of EGR and Fuel Injection Strategies on the Heavy-Duty Diesel Engine Emission Performance under Transient Operation

To reduce the smoke and nitrogen oxide (NOx) emissions; a detailed study concerned with exhaust gas recirculation (EGR) and diesel injection strategy was conducted on a two-stage series turbocharging diesel engine under transient operating condition. One transient process based on the constant speed of 1650 r/min and load increases linearly from 10% to 100% within 5 s was tested in this study. The effect of the EGR valve control strategy on engine transient performance was examined. The results show that better air-fuel mixing quality can be obtained with the optimized the EGR valve open loop control strategy and the smoke opacity peak decreased more than 64%. Under the EGR valve close loop control strategy; the smoke opacity peak was lower than with open loop control strategy; but higher than without EGR. The effect of fuel injection strategy on engine transient performance was examined with the EGR valve close loop control. The results show that sectional-stage rail pressure (SSRP) strategy (increasing injection pressure from a turning point load to 100% load) and optimizing fuel injection timing can improve the engine emission performance. The satisfactory results can be obtained with lower NOx (382 ppm) emissions and the smoke opacity peak (3.8%), when the turning point load is set to 60% with the injection timing delay 6° CA.

Experimental and Numerical Investigation of the CO2 Dilution Effect on Laminar Burning Velocities and Burned Gas Markstein Lengths of High/Low RON Gasolines and Isooctane Flames at Elevated Temperatures

The exhaust gas recirculation effect on the laminar burning velocity (SL) and flame stability of CO2-diluted isooctane/air and high/low research octane number (RON) gasoline/air mixtures was invest...

Quantitative study on chemical effects of actual/simulated recirculated exhaust gases on ignition delay times of n-heptane /ethanol fuel blends at elevated temperature

Three sets of exhaust gas recirculation (EGR) are introduced into shock tube experiments to measure and analyze their influences on n-heptane/ethanol auto-ignition behavior. EGR 1 and EGR 2 are simulated recirculated exhaust gases, and EGR 3 is the field collection of the low pressure and cooled EGR from a single-cylinder engine operating under reactivity controlled compression ignition (RCCI) regime, with major components being N2/CO2/O2/CO/Unburnt hydrocarbon (UHC). CO and UHC are the main incomplete oxidation products (IOP). Ignition delay times of n-heptane/ethanol blends mixed with these three sets of EGRs are measured at the equivalence ratios of 0.5, 1, and 1.5, temperature range of 950–1350 K, pressures of 10 and 18 atm, and EGR ratios of 0%, 30%, and 50%. Experiment results show that the chemical effects of O2 and IOP are weaker compared with the physical effects of EGR; they, however, should not be neglected since these two effects do promote the ignition to some extent. Quantitative analyses suggest that the increase of equivalence ratio and EGR ratio leads to a stronger promotion effect of O2, while the effect of pressure is minimal. The chemical effect of IOP decreases with increasing equivalence ratio, and unnoticeable correlation is observed between pressure and the chemical effects of IOP. Sensitivity analysis has been conducted to identify the predominant reactions during the ignition. The current work is helpful to understand the effects of EGR thoroughly, especially in RCCI combustion regime.

The potential of dimethyl carbonate (DMC) as an alternative fuel for compression ignition engines with different EGR rates

Dimethyl carbonate (DMC) has high oxygen content (53.3%) and a non-toxic preparation, which is a promising additive for diesel fuel. Exhaust gas recirculation (EGR) technology inhibits the formation of NOX. The combination of DMC with EGR is considered to be a practical means of meeting emissions regulations. In this study, a four-cylinder diesel engine was used to study the effects of DMC and EGR on engine emissions and performance. The three test fuels included a pure diesel (D100), 10% DMC and 90% diesel (DMC10), and 20% DMC and 80% diesel (DMC20). The results show that the DMC20 mixtures created a longer ignition delay, and resulted in the highest pressure and heat release rate. However, the use of DMC shortened the duration of the combustion. The brake specific fuel consumption of the DMC blends was higher than that of diesel, and the brake thermal efficiency of the DMC10 was higher than diesel at the same EGR. Through an energy balance analysis, DMC20 has a significant potential for exhaust gas energy recovery. Overall, DMC20 had the best combustion performance when it was used in combination with EGR rates of 20%−30%. When EGR = 40%, the NOX emission of DMC20 was reduced by 64.9%, and the soot emission was reduced by 80%. The nucleation mode and aggregation mode particulate matter (PM) emissions were less affected by EGR, the total PM concentration of DMC20 reduced to less than 20% of D100, and the mass concentration was reduced by approximately 70%.

Reduction in PM and NOX of a diesel engine integrated with n-octanol fuel addition and exhaust gas recirculation

n-Octanol with its high energy density and high cetane number has similar fuel properties as diesel fuel, and is thus considered an excellent choice for alcohol fuels as a substitute for diesel. This study focused on the effects of exhaust gas recirculation (EGR) combined with the addition of n-octanol on the performance, emissions, and particulate matter (PM) of a direct injection diesel engine. The results show that the curves of the in-cylinder pressure of n-octanol/diesel blends nearly overlap those of pure diesel fuel under the test conditions. At a low EGR ratio, the brake thermal efficiency of n-octanol/diesel blends is higher than that of diesel fuel. With an increase in the EGR ratio, the results show that nitrogen oxide (NOX) emissions decrease, whereas carbon monoxide (CO) and soot emissions significantly increase. However, the use of n-octanol/diesel blends can inhibit the increase in CO and soot emissions appreciably. In addition, with an increase in n-octanol content in the blends, the number concentration of particles on the particle size distribution decreases gradually. To summarize, a simultaneous reduction in NOX and PM emissions under a combined operation of small EGR ratios and n-octanol blends can be realized, thereby improving the brake thermal efficiency.

The effects of exhaust gas re-circulation and injection timing on combustion performance and emissions of biodiesel and its blends with 2-methylfuran in a diesel engine

In this study, the influences of injection timing and exhaust gas re-circulation on combustion and emissions characteristics of biodiesel/2-methylfuran blends are investigated on a modified water-cooled 4-cylinder four-stroke direct injection compression ignition engine. The experimental conditions are, respectively, to adjust injection timing and exhaust gas re-circulation ratio at 0.38 MPa break mean effective pressure with the engine speed at 1800 rpm constantly. With injection timing in advance, the peak cylinder pressure rose while maximum heat re-lease rate first decreased and next slightly raised. Ignition delay and brake specific fuel consumption reduced first and then raised while combustion duration and break thermal efficiency had the opposite trend. The NOx emissions in-creased, and HC emissions first reduced significantly and then slightly increased, while 1,3-butadiene and acetaldehyde emissions presented a reduction tendency. As exhaust gas re-circulation ratio increased gradually, ignition delay as well as combustion duration was prolonged. brake specific fuel consumption increased and break thermal efficiency declined. HC, CO, 1,3-butadiene, and acetaldehyde emissions raised while NOx emissions reduced significantly. Biodiesel could be-have well in a Diesel engine and thus a feasible alternative fuel for diesel. More-over, methylfuran addition into biodiesel could raise break thermal efficiency and the break thermal efficiency of BM20 is higher than BM10. However, both BM10 and BM20 appeared a combustion deterioration when injection timing at 2.5?CA before top head center.

EFEK METANOL KADAR RENDAH TERHADAP TORSI MESIN DIESEL DENGAN SISTEM HOT EGR

One type of motorized vehicle that is very suitable for transportation and heavy equipment vehicles is diesel engines, because of its high combustion efficiency, reliability, fuel flexibility, and low fuel consumption make diesel widely used in several countries. Lowgrade methanol mixtures and jatropha are used as alternative fuels. This study aims to study the effect of low purity methanol mixture and jatropha on torque in Isuzu 4JB1 diesel engine direct injection with Hot EGR (Exhaust Gas Recirculation) system using a mixture of biodiesel fuel, low grade methanol and jatropha. The low purity methanol used has a water content of 24.88% based on volume. The ratio of biodiesel, methanol and jatropha mixture used is D85LPM5J10, D80LPM10J10, D75LPM15J10, D75LPM5J20, D70LPM10J20, D65LPM15J20, D65LPM5J30, D60LPM10J30 and D55LPM15J30. EGR openings varied from 0%, 25%, 50%, 75% and 100%. Testing is carried out at a constant rotation of 2000 rpm and given a load of 25%, 50%, 75% and 100%. This study uses dynamite Land & Sea dynamometer. The experimental results show that the EGR Effect can increase the torque value. Torque values tend to decrease when using a mixture of fuels compared to D100. At low loads (25%) there is an increase in the Torsi value for the fuel mixture D85LPM5J10, D80LPM10J10, D70LPM10J20 and D55LPM15J30 of 12.03%, 7.50%, 5.01%, and 5.97%.Keywords: Metanol, Torsi, Mesin, Diesel, EGR