A Study of Heat Exchange Processes within the Channels of Disk Pulse Devices
Abstract
:1. Introduction
2. Materials and Methods
2.1. Analytical Studies of the Heat Exchange Process and Its Computer-Based Representation
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- The process in the disk pulse device is axially symmetrical; we neglect the changes in physical values along the angular coordinate (∂/∂φ = 0);
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- The process is of a steady-flow nature (time changes in physical values are insignificant ∂/∂t = 0);
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- Mass forces are neglected (ρ∙gi = 0);
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- The velocity component Vz is neglected as h << Rn;
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- The temperature gradient at the expense of convective heat transfer along axis z is neglected; heat transfer along axis r is taken into consideration only in terms of heat convection.
2.2. Structural Features of the Experimental Disk Pulse Heat Generator
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- t1, °C–temperature at the inlet to the heat exchanger (provided by an electronic contact MC–52,228 Mastercool thermometer);
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- t2, °C–temperature at the entrance to the disk pulse apparatus (provided by an electronic contact MC–52,228 Mastercool thermometer);
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- t3, °C–temperature at the outlet of the disk pulse apparatus (provided by an electronic contact MC – 52,228 Mastercool thermometer);
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- t4, °C–temperature at the exit of the heat exchanger (provided by an electronic contact MC–52,228 Mastercool thermometer);
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- P, Mpa–pressure in the working chamber of the disk heat generator (provided by a ДM 05100–01 M manometer, radial 0.6 MPa);
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- G, kg/s–flow rate of the heated medium (provided by an MTW-UA 25 vane counter for hot water);
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- n, min−1–engine speed (provided by a Guangdong T9Z-4 TMCON tachometer); and
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- Np.s., kW∙h– power spent (provided by an electric Nic 2102–02 M2B 5–60 A meter).
3. Results and Discussion
- The optimization of geometrical parameters of its working chamber based upon the results of mathematical modeling;
- The optimization of the parameters’ hydrodynamics and heat-exchanging processes (velocity, pressure, temperature) inside the working chamber of the heat generator;
- The application of a multistage system of pulse action on the heat carrier; and
- The application of the automatic controls for the heating system involving the integrated heat generator in relation to pulse action on the heat carrier.
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Nikolsky, V.; Kuzyayev, I.; Dychkovskyi, R.; Alieksandrov, O.; Yaris, V.; Ptitsyn, S.; Tikhaya, L.; Howaniec, N.; Bak, A.; Siudyga, T.; et al. A Study of Heat Exchange Processes within the Channels of Disk Pulse Devices. Energies 2020, 13, 3492. https://doi.org/10.3390/en13133492
Nikolsky V, Kuzyayev I, Dychkovskyi R, Alieksandrov O, Yaris V, Ptitsyn S, Tikhaya L, Howaniec N, Bak A, Siudyga T, et al. A Study of Heat Exchange Processes within the Channels of Disk Pulse Devices. Energies. 2020; 13(13):3492. https://doi.org/10.3390/en13133492
Chicago/Turabian StyleNikolsky, Valeriy, Ivan Kuzyayev, Roman Dychkovskyi, Oleksandr Alieksandrov, Vadim Yaris, Serhiy Ptitsyn, Ludmila Tikhaya, Natalia Howaniec, Andrzej Bak, Tomasz Siudyga, and et al. 2020. "A Study of Heat Exchange Processes within the Channels of Disk Pulse Devices" Energies 13, no. 13: 3492. https://doi.org/10.3390/en13133492