Measuring thermal characteristics of the heat exchanger

Kňourek, Jindřich; Kůs, Michal; Syka, Tomáš

doi:10.1051/epjconf/20122501041

Cited by 2 publications

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“…The characteristic of this transfer is usually measured in our laboratory. For the description of measuring methods and equipment see [1]. This characteristic consists of measured data describing transfer of the heat out of the cooling circuit to the system surroundings in the dependence on cooling fluid flow rate, cooling fluid temperature, pressure in heat exchanger and air mass flow through the heat exchanger and surroundings temperature.…”

Section: Cooling Circuit Simulationmentioning

confidence: 99%

Investigation of the thermohydraulic systems in MATLAB & Simulink using developed library

Čibera

Lávička

2013

EPJ Web of Conferences

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Abstract. Recent developments in the designing of the thermohydraulic systems have heightened the need for special software tools. Possibility of incorporating the measured data, easy and quick rearrangement of the system and short simulation time play a key role in successful progress in designing of the thermohydraulic systems. Commercial software sometimes does not fit to our special tasks or it lacks some utilities. This paper attempts to show usefulness of MATLAB and Simulink in the development of the "drag and drop" software. In the Simulink it is possible to develop specialized libraries containing graphical blocks representing parts of the real systems. Easy cooling circuit was designed using developed graphical blocks. The main parts of the circuit consist of the heat source and heat exchanger/cooler. Another parts such as pumps, pipes and properties of the cooling medium etc. are taken into account in the investigated system. These results obtained by the developed software are presented for similar circuits with different heat exchangers/coolers. Simulations for different heat exchangers were solved with different initial conditions. These results are consequently compared. Characteristic properties (heating/cooling power and pressure drop according to flow rate) of the heat exchangers/coolers were obtained experimentally in our laboratory and by the numerical CFD simulation in ANSYS/FLUENT software.

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Section: Cooling Circuit Simulationmentioning

confidence: 99%

Investigation of the thermohydraulic systems in MATLAB & Simulink using developed library

Čibera

Lávička

2013

EPJ Web of Conferences

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“…Many of CFD and heat transfer simulations were achieved in our laboratory also. Apart from CFD simulations, many of measured experiments on such parts of thermohydralic systems as heat exchangers [2] were accomplished in our laboratory too. Although a lot of desired results were obtained, the problem arose, when there was a demand on how some simulated or measured parts in system could affect another parts in the whole thermohydraulic system and how the parts behave in the whole system themselves.…”

Section: Introductionmentioning

confidence: 99%

1D models of the thermohydraulic systems supported by CFD results and measured data

Čibera

Lávička

Kňourek

2014

EPJ Web of Conferences

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Abstract. In this paper is reported the way of simulation of thermohydraulic systems as whole real systems consisting of many parts. The crucial demand in our approach was to develop a software within the whole thermohydraulic system could be quickly designed and simulated under different conditions. Therefore, new graphical "drag and drop" thermohydraulic library is being developed under MATLAB/Simulink. Pivotal point in our approach was the incorporation of results obtained in CFD simulations and the incorporation of measured data from calorimetric tunnel. Designed and simulated easy cooling circuit is shown as an example of application of developed software. The results for various composition of cooling fluid and various RPM of pump are presented.

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Measuring thermal characteristics of the heat exchanger

Cited by 2 publications

References 0 publications

Investigation of the thermohydraulic systems in MATLAB & Simulink using developed library

Investigation of the thermohydraulic systems in MATLAB & Simulink using developed library

1D models of the thermohydraulic systems supported by CFD results and measured data

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