Numerical simulations of natural gas flow in pipe system with flowmeters

Kňourek, Jindřich; Matas, Richard; Prokes, Ondrej; Tenkrát, Daniel

doi:10.1051/epjconf/20146702054

Cited by 8 publications

(3 citation statements)

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“…: turbine, expander, cooler and warmers), put it into the model and set the parameters [7,8]. Since the simulations runs in real time, the parameters can be changed during the entire simulation.…”

Section: Numerical Simulationmentioning

confidence: 99%

Numerical simulation of heat exchanger operation

Ďurčanský

Oršanský

2018

MATEC Web Conf.

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Abstract. Numerical simulations have opened wide field of possible applications and opportunities to be used not only in science but also in the industry. With new developed numerical methods we can not only describe existing systems, but we can also predict possible behaviour or possible state of inspected system. This article deals with numerical simulation of proposed heat exchanger for hot air engine and with simulation of its possible states and behaviour with certain conditions. Heat source for hot air engineCogeneration unit with hot air engine should be used as an independent source of electrical and heat energy for the household to ensure an efficient energy supply with respect to high reliability. The source of heat is determined by the furnace for burning biomass, in form of a wood pieces, or pellets. Transport energy from the combustion of biomass to a working fluid in hot air engine is providing a heat exchanger connected to that source. In the design of the heat exchanger were taken into account all the conditions imposed on the heat exchanger and the desired properties. Most often the investigation of the heat transfer is the exchanger heat surface [1,2]. From this are derived all other parameters, external dimensions, connection dimensions, such as flanges, pipe connecting dimensions, mounting flange dimensions consoles supporting structures. Draft of heat exchanger for hot-air engine had to take into account a wide range of specifications and operating conditions. We have established basic dimensions using the criterion equations. To determine the boundary conditions have been transferred several measurements that confirm and specify the chosen boundary conditions. The basic schema of our proposed micro cogeneration unit is in the Figure 1.

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Section: Numerical Simulationmentioning

confidence: 99%

Numerical simulation of heat exchanger operation

Ďurčanský

Oršanský

2018

MATEC Web Conf.

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“…The other parts of the furnace, e. g. the exhaust, was also presented, to display flue gas flow, see Figure 6. The whole inner volume of the simplified furnace model was considered as fluid [8,9].…”

Section: Fig 2 Boundary Conditions For the Modelmentioning

confidence: 99%

Numerical modelling of heat flows in the upper blast furnace of the electric arc furnace

et al. 2018

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Contributing shows one of the alternatives to use the waste heat from an electric furnace hat with subsequent use for the need for heating water preparation and central heating. In a contribution is presents a numerical model of heat flows from electric arc furnace designed for, into a cooled furnace from which waste heat is led to the central heating system. The model was developed implementing the finite volume method in ANSYS-Fluent program code.

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“…The dimension of the combustion chamber is also determined by the quantity of heat released per volume. [3], [4] The restrain time of the flue gas determines how long the flue gas remains in the combustion chamber until it leaves it through the chimney. [5] This parameter is important for sufficient combustion.…”

Section: Fuel Change In Small Heat Sourcementioning

confidence: 99%