Визначення значень теплових потоків для обґрунтування системи теплопостачання та режимів її експлуатації

Автор(и)

  • В. Є. Василенков

Анотація

UDC 631.3:621.1

Virtual RESEARCH parametric tests of Centrifugal pumps

V.E. Vasilenkov, Ph.D., associate professor

M.N. Gudzenko, head. laboratories

O.V. Nazemtsev, master 1st year of Education and Research Institute of Energetics, Automation and Energy Efficiency

 

The possibility of the use of simulation in hydraulics on the example of laboratory work "Parametric tests of the centrifugal pump". The results of the study parametric virtual testing of a centrifugal pump and a graphical display is given.

Key words: centrifugal pump, parametric trials, virtual research, pressure, expenditure

Today, training skilled specialists is impossible without use of new learning using computer technology based on advanced application software products.

Characteristics theory of hydraulic machines is high component of professional training of heat power and electric vehicles and electric systems. Modern computer technology can significantly change and significantly improve the technology study of hydraulic and electric cars, translate it into a virtual reality exercise in this virtual lab studies of static and dynamic modes of hydraulic and electric machines, their characteristics, conditions and start technical and economic indicators to obtain quantitative results. Therefore, the use of computer technology will expand the range and depth of issues under study, conduct many experiments using virtual machines are hydraulic urgent task that positively affect the level of training.

The purpose of the work. Creating a virtual laboratory setup and methods of cultivation of the results of the data, with possible use in distance learning.

Materials and methods of research. Virtual Lab on "Parametric testing centrifugal pump" is performed when the user interacts with the computer using impact indicator mouse on different graphics that display details of laboratory settings. In the box type of laboratory work on the top right button "Help", which opens a new window with the description of the scheme and order laboratory facility for this work. Implementation of virtual laboratory, research students, researchers performed based on the task received from the teacher supervisor. Registration settlement of executed availability of additional guidelines annexed to this development.

Results. The execution of the scheme and installation:

 

1–starter; 2–motor; 3–pump; 4–badges rotation valve; 5–valve; 6– vacuum gauge; 7–gauge; 8–Ammeter; 9–voltmeter; 10–differential pressure gauge; 11–aperture; 12–reception capacity; 13–expenditure capacity; 14–overflow; 15–line; 16–calibration manometer.

The order of performance.

  1. Select the table "Conditions experiment" set parameters.
  2. Pressing the black starter button (1) turn on the electric motor (2). This pump (3) will start to work.
  3. Use the icons (4) control the position of the valve (5) to produce the required flow rate in the pipeline. The provisions on the right of the valve is indicated as a percentage.
  4. In each set of fluid flow readings fix ammeter (8), a voltmeter (9), the difference in liquid level gauge differential pressure gauge (10). Fix also indications vacuum gauge (6) and pressure gauge (7).
  5. Note. To find Fluid flow in the pipeline using equation (16), where hm-difference gauge levels of fluid in the differential manometer (10).
  6. Form table to record the input data according to the laboratory at a cost of 0%, 20%, 40%, 60%, 80%, 100%.

I, A

U, B

h man, atm.

hv, mmHg.

n, %

hm

1

3

376

3,1

180

0

0

2

6

376

3,1

180

20

2

3

8

376

3,0

200

40

5

4

10

376

2,5

240

60

7

5

11

376

1,9

280

80

10

6

12

376

1,2

324

100

12

 

Conclusions.

Based on the study parametric test virtual console pump mark K65-50-160 built his performance, which includes a pressure-expenditure and energy performance. In building a performance other brands of pumps should only use the said program, which is much exceeded on technical and economic possibilities of real physical laboratory setting.

Посилання

Єнін П. М. Теплопостачання : навч. посіб. / П. М. Єнін, Н. А. Швайко. – К. : Кондор, 2006. – 242 с.

Богословский В. Н. Отопление : учеб. для вузов / В. Н. Богословский, А. Н. Сканави. – М. : Стройиздат, 1991. – 735 с.

Завантаження

Опубліковано

2017-02-24

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