Thermodynamik der Verbrennungskraftmaschine

Pischinger, Rudolf; Klell, Manfred; Sams, Theodor

doi:10.1007/978-3-7091-3826-7

Cited by 121 publications

(60 citation statements)

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“…Pflauma [50,53,61], koji su kasnije izgubili na značaju uvoĎenjem modela zasnovanih na teoriji sličnosti (npr. Anand, Vošni i Hoenberg).…”

Section: Modeli Zasnovani Na Nuseltovoj Empirijskoj Relacijiunclassified

“…Za razliku od pomenutih izraza Brilinga, Brizgova, Van Tijena i Pflauma, Ajhelbergov model za trenutni koeficijent prenosa toplote formulisan je nešto drugačije [49,50,53,57,59,61,[63][64][65]74,75]:…”

Section: Model Ajhelbergunclassified

“…Odličnu osnovu za razvoj sistema diferencijalnih jednačina dvozonskog modela, kojim će biti opisan radni proces motora, predstavlja Pišingerova (Pischinger) [50] formulacija. Postavka se odnosi, kao i u slučaju Fergusona, samo na visokopritisni deo ciklusa, ali je pristup neuporedivo fleksibilniji i korisniku ostavlja široke mogućnosti za specificiranje pojedinih podmodela.…”

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“…Postavka se odnosi, kao i u slučaju Fergusona, samo na visokopritisni deo ciklusa, ali je pristup neuporedivo fleksibilniji i korisniku ostavlja široke mogućnosti za specificiranje pojedinih podmodela. Pristup je transparentan i polazi od postavljanja osnovnih jednačina za održanje energije, mase i jednačine stanja za svaku od zona, na isti način kako se to uobičajeno čini u slučaju jednozonskih modela [49][50][51][52][53], pri čemu broj zona ne mora biti ograničen. Ovakav pristup se može naći u Rajnovom (Raine)radu…”

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“…Kod benzinskih motora, uticaj lošeg hlaĎenja radnog prostora (npr. svećica, izduvni ventil) može biti izvor neregularnog sagorevanja, detonacije i pregrevanja motora [49,50,59,60].…”

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Dynamic interaction between the structure and the trolley of high performance gantry cranes

Popović¹

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“…Pflauma [50,53,61], koji su kasnije izgubili na značaju uvoĎenjem modela zasnovanih na teoriji sličnosti (npr. Anand, Vošni i Hoenberg).…”

Section: Modeli Zasnovani Na Nuseltovoj Empirijskoj Relacijiunclassified

Section: Model Ajhelbergunclassified

unclassified

“…Kod benzinskih motora, uticaj lošeg hlaĎenja radnog prostora (npr. svećica, izduvni ventil) može biti izvor neregularnog sagorevanja, detonacije i pregrevanja motora [49,50,59,60].…”

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Dynamic interaction between the structure and the trolley of high performance gantry cranes

Popović¹

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Efficiency improvement and NOx emission reduction potentials of two-stage turbocharged Miller cycle for stationary natural gas engines

Kesgin

2005

Int. J. Energy Res.

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SUMMARYAs a part of an engine research and development project in cooperation with industry, a V20 engine is designed with two-stage high-pressure turbocharging, and the potential of the Miller cycle is examined through calculations using computational models based on experimental as well as computational studies. The stationary gas engines must produce less than 250 mg Nm À3 in 5% excess of O 2 , additionally the amount of NO x emissions and their dependence on engine operational and design conditions are investigated by using a zero-dimensional reaction kinetic model. The results show an increase in efficiency, also the amount of NO x emissions is kept under the constraint value of 250 mg Nm À3 for stationary engines. The results obtained here promise a very high improvement potential for future emission regulations.

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Simulation of thermodynamic systems using soft computing techniques

Kesgin

Heperkan

2005

Int. J. Energy Res.

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SUMMARYAn exact thermodynamical analysis of systems is only possible under several assumptions; each of them brings an uncertainty in the solution. Without these assumptions, a thermodynamical analysis of a real application requires thousands of nonlinear equations, whose solution is either almost impossible or takes too much computational time and effort. To overcome this obstacle, the artificial neural network (ANN) and fuzzy logic are magic tools, in particular to analyse the systems for arbitrary input and output patterns. This paper deals with the ANN and fuzzy logic analysis of various thermodynamic systems. The first is an efficiency and emission modelling of a stationary natural gas engine using an ANN model, which is able to obtain the effect of various operational parameters such as charge-pressure and temperature, air fuel equivalence ratio, combustion-start and duration and combustion form on the engine efficiency and NO x emission. The second is a cogeneration power plant with three gas turbines, one steam turbine and a district heating system. The effects of ambient-pressure and temperature, relative humidity, wind-velocity and direction on the plant power are investigated using the ANN model, which is based on the measured data from the plant. The last example is a dryer machine. The dryer machine is modelled first as a thermodynamical system. Then a fuzzy logic model is developed to predict the drying time and the power demand depending on condensation pressure and -temperature and evaporation pressure. All models studied here give very accurate and fast estimations which are comparable with the experimental results.

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Thermodynamik der Verbrennungskraftmaschine

Cited by 121 publications

References 0 publications

Dynamic interaction between the structure and the trolley of high performance gantry cranes

Dynamic interaction between the structure and the trolley of high performance gantry cranes

Efficiency improvement and NOx emission reduction potentials of two-stage turbocharged Miller cycle for stationary natural gas engines

Simulation of thermodynamic systems using soft computing techniques

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