Development of producer gas engines

Sridhar, Gattu; Sridhar, H. V.; Dasappa, S.; Paul, P.J.; Rajan, N.; Mukunda, H. S.

doi:10.1243/095440705x6596

Cited by 96 publications

(51 citation statements)

References 6 publications

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“…Carburetor used for mixing air and producer gas mainly consists of individual fluid inlets with single outlet, which is attached to the intake manifold of an engine. Carburetor developed must have an ability to maintain the required air-fuel ratio (1.2 to 1.3) with varying load and pulsating gas flow conditions [12,19,20]. The carburetor was developed to operate in conjunction with a calibrated venturimeter designed for the producer gas flow measurement.…”

Section: Producer Gas Supply Systemmentioning

confidence: 99%

“…Power generation using biomass gasifier based projects and financial evaluation has been reported [13,14]. Several investigators have extensively investigated gasifier -engine systems for rural and urban power generation and agricultural applications [9,[12][13][14][15][16][17]. Dual fuel operation with producer gas favors higher compression ratio as it has high octane number and self-ignition temperature, but it suffers from 20-30% power derating [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Effect of mixing chamber or carburetor type on the performance of diesel engine operated on biodiesel and producer gas induction

Yaliwal¹

2016

IJAET

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Biodiesel-producer gas fueled dual fuel engine suffers from lower brake thermal efficiency (BTE) with higher unburned hydrocarbon (HC) and carbon monoxide (CO) emissions at all loads. In this present work, to harness energy from producer gas and ensure air and producer gas mixing quality, different mixing chambers (carburetors) have been developed. In the first phase of the work, mixing chambers were analyzed for its mixing performance using experimental approach. Different carburetors were drawn from Y-shape having 45, 60, 90 0 gas entries as well as with parallel flow gas entry. Based on the results obtained, it was found that parallel flow gas entry carburetor resulted in better mixing of air and producer gas. In the next phase of the work, experimental investigations were conducted to study the effect of air-producer gas mixture quality on the performance, combustion and emission characteristics of single cylinder, four strokes direct injection diesel engine developing 3.7 kW at 1500 rpm operated on dual fuel mode with Honge oil methyl ester (HOME) and producer gas induction. Experimental investigation showed that all carburetors except parallel flow gas entry carburetor resulted in lower performance. Dual fuel engine with parallel flow gas entry carburetor showed 5 to 8 % increased BTE with reduced smoke, HC and CO emission levels compared to other carburetors tested. Based on the study, it is concluded that this area still requires more research with long term engine operation.

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Section: Producer Gas Supply Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of mixing chamber or carburetor type on the performance of diesel engine operated on biodiesel and producer gas induction

Yaliwal¹

2016

IJAET

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“…Some studies have appeared on the use of producer gas in IC engines of 1000 KW capacity (Sridhar et al, 2005).…”

Section: Use In Enginesmentioning

confidence: 99%

“…So far, no study has been done on the efficiency and economics of the scheme. Producer gas was used to run a modified internal combustion engine (Sridhar et al, 2005), with reasonable results.…”

Section: Overall Efficiency and Economic Analysis Of The Schemementioning

confidence: 99%

Evaluation of some renewable energy technologies

Basu¹

2017

Min. miner. depos,

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Purpose. The study aims to outline and compare various renewable energy alternatives in view of the global warming crisis and depletion of fossil fuels which cause emissions of carbon dioxide. Carbon dioxide is a major source of pollution and is an absorbent for radiation. Methods.Literature surveys and analysis of benefits and drawbacks of the competing technologies should include the capital costs, running costs and carbon footprint. Liquid fuels have high energy to weight ratio compare to say solar panels or thermal absorbers, but what is neglected is the large refinery and other processing machinery behind the liquid fuel which is adding to the carbon footprint.Findings. Producer gas and bacterial engines are suggested as possible pollution reducing and cost effective methods for power generation. Coal, biomass, geothermal and hydroelectric have the lowest running cost, but carbon footprint cost is neglected. Solar chimneys, with low mechanical efficiency have low running costs, and no pollution. Modification of internal combustion engines to use producer gas and alcohol may reduce overall carbon footprint.Originality. Many researches focus on energy and mechanical efficiency. Bacterial engines have yet to be fully developed, and these are wonderful chemical factories but not understood in terms of classical thermodynamics. For all technologies, return on investment is more appropriate since capital costs are also included, which are neglected in mechanical efficiency calculations.Practical implications. Depletion of forest cover which acts as a greenhouse gas sink contributes to global warming. Worldwide, million of cars with internal combustion engines consuming petroleum, if converted to alternative fuels, can help in reducing the carbon gas emissions and ultimately to a slowdown in the global warming rate.

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“…In the current work, the zero-dimensional model has been used in predictive mode and the output of a commercial gas engine predicted. The producer gas typically contains 18 -20 per cent H 2 , 18 -20 per cent CO, 2 -3 per cent CH 4 , 12 per cent CO 2 , 2.5 per cent H 2 O, and N 2 as balance [5]. The lower calorific value of the gas is 5.2 + 0.2 MJ/m 3 , with a stoichiometry requirement of 1.2 -1.4 kg of air for every kg of producer gas [5].…”

Section: The Approachmentioning

confidence: 99%

Zero-dimensional modelling of a producer gas-based reciprocating engine

Sridhar

Paul

Mukunda

2006

Proceedings of the Institution of Mechanical Engineers, Part A:

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A zero-dimensional modelling study has been conducted using wrinkled flame theory for flame propagation to understand the in-cylinder pressure behaviour with time in a reciprocating internal combustion engine. These are compared with experiments conducted on the engine operated on biomass derived from producer gas and air mixture. The required inputs on the laminar burning velocity and turbulence parameters are obtained from separate studies. The data related to laminar burning velocity for producer gas and air mixture at thermodynamic conditions typical of unburned mixture in an engine cylinder were obtained from one-dimensional flame calculations. The turbulence parameters were obtained by conducting a three-dimensional computational fluid dynamics study on a bowl-in-piston geometry to simulate motored or non-firing conditions. The above mentioned data were used in the zero-dimensional model to make pressure-time (p-u) computation over the complete engine cycle, for a range of test cases at varying compression ratio (CR) and ignition timing. The computational results matched reasonably well with experimental p-u curves at advanced ignition timing at all CRs. The error in computed indicated power (IP) at advanced ignition setting (188-278 CA) is around 3-4 per cent for CR ¼ 17.0 and 11.5, and between 6 and 9 per cent for CR ¼ 13.5. However, at less advanced ignition setting, the error in computed IP is larger and this is attributed to enhanced fluid dynamic effect due to reverse squish effect. And, whenever major part of the combustion occurred during this period, the deviation in the computed result appeared to be larger. This model has also been used to predict output of a commercially available producer gas engine of 60 kW. The optimum ignition timing on this particular engine was experimentally found to be 228-248 before top centre. The zero-dimensional model has been used in a predictive mode and results compared with brake power under wide throttle open condition.

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Development of producer gas engines

Cited by 96 publications

References 6 publications

Effect of mixing chamber or carburetor type on the performance of diesel engine operated on biodiesel and producer gas induction

Effect of mixing chamber or carburetor type on the performance of diesel engine operated on biodiesel and producer gas induction

Evaluation of some renewable energy technologies

Zero-dimensional modelling of a producer gas-based reciprocating engine

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