The main direction of the Department (years of existence of the Department: 1930-2019) and created by its specialists scientific and engineering center «Compressor, vacuum, refrigeration and systems of gas transport and processing» are research and development in the field of compressor technology.
The history of the scientific and technical school of our center dates back to 1930!
August 21, 1930 at the Leningrad Polytechnic Institute by the name of M. I. Kalinin the Department of compressor engineering was created. The world’s first specialized Department of compressors and compressor technology.
The first chair was an outstanding scientist of power engineering Konstantin Ivanovich Strakhovich!
During the years of existence of Department CVRT from 1930 to 2019, 145 candidate’s and 16 doctoral thesis were written and defended at the Department.
Konstantin Ivanovich Strakhovich — the first head of the LPI compressor equipment department.
Konstantin Pavlovich Seleznev — founder of the scientific school of compressor engineering in LPI-SPbPU. . from 1960 to 1989 he was the head of the LPI compressor engineering Department – the country compressor engineering leading scientific center. In 1973 – 1983 he was the rector of the Institute. After 1989 he was a Professor — scientific director of research groups related to the topic of centrifugal compressors of high and ultrahigh pressure.
Chairman of the petroleum Ministry NTS and USSR chemical industry, Chairman of the compressor engineering section.
We have a significant experimental and verification base of CFD modeling results
The Department has 7 test benches with a total capacity of about 3.5 MW. There is also a closed loop stand for pressure up to 100 ATM. Also at the Department there are 10 laboratory stands with a total capacity of about 500 kW.
Model stages of the Department
For decades of Department design and experimental activities the huge database was created:
— more than 300 full-scale tests of centrifugal compressor stages;
— more than 150 tests of compressor flow elements;
— more than fifty results of unsteady processes field studies in centrifugal compressors
Experimental stands of the CVRE Department
Stand for testing models of centrifugal compressors (power up to 800 kW, adjustable speed up to 18000 rpm)
Stand for centrifugal compressors testing models at pressures up to 100 ATM.
Experimental studies of compressor models on special stands are necessary for the development of the design problems theory and solution.
The scale of the research results implementation.
For example, only for the gas industry of OAO «Gazprom» and other countries more than 50 implemented compressor projects in the amount of more than 330 parts with an installed capacity of about 5 million kW – this is about 10% of all centrifugal compressors for compressing natural gas of OAO»Gazprom».
Example: five-stage supercharger 108-51-1 with a final pressure of 12.3 MPa. (The first compressor of a new generation for the gas industry. Gas dynamics project of the CVRE Department.
Design and computer modeling of compressors
Axial impeller of the project «RK-6», П=1.74, polytropic efficiency of the impeller in total parameters at the design mode is η*п st=0,915.
The Department has its own methods of centrifugal compressors flow parts gas-dynamic design, including its own methods of high-efficiency axial impellers design.
According to US rating agencies in 2016, the Department’s research on large-sized ORC of the Central Committee is the world’s leading.
Projects of natural gas modern and perspective compressors executed by experts of the scientific and engineering center.
Projects of modern and perspective air compressors.
Projects of modern and perspective compressors of General industrial purpose.
Projects of axial compressors.
Modernization project in order to increase efficiency and reduce the weight and size of the aviation turbine engine D-36 compressor
Project of main gas pipeline natural gas axial compressor
Study of three-dimensional viscous flow stage K-100-2L.
Projects of compressor units and installations.
Sealed unit-module of gas pumping unit with capacity N=16 MW underwater location at the wellhead of Shtokman field.
Compressor unit for utilization of associated petroleum gas with rotary-plate compressor
Software packages used.
As well as software products of our own design!
An example conducted a multi-parameter optimization performed at the department supercomputer.
As a result of multi-criteria optimization carried out by the Department, it was possible to increase the calculated efficiency of the model stage of NZL-REPH by 1.58%
For more than 30 years the Department of “Compressor, vacuum and refrigeration engineering” has been conducting research in the field of non-stationary processes in turbo compressors.
A characteristic system of protection against the turbo compressors surging is being developed.
Own department stand about the study of non-stationary phenomena in the flow part, including pre-stall, stall flow and surging.
The advantages of the protection characteristic system against the turbo compressor surging compared with the traditional-parametric are:
- Determination of the reliable surge beginning boundary, regardless of the current operating turbo compressor conditions.
- Expansion of the turbo compressor stable operation zone not less than 5% towards to the surging direction.
- Real-time monitoring of the turbo compressor gas-dynamic stability parameters.
Example: a characteristic of a centrifugal natural gas compressor with surging zone indication.
Volumetric compressor
Since 1930 to 2017, 40 phd and 4 doctoral theses about volumetric compressors were defended at the department.
Frenkel Mark Isaakovich. A graduate and lecturer of the CVRE Department, a scientist, the founder of the scientific school about piston compressors in the USSR.
Piston compressor study stands
A program of piston compressors calculation has been created at the CVRE department:
EXAMPLES:
Piston compressors
Dynamic analysis
Tension calculation
Silencers calculation
Rotary vane compressor
Engineering
Modeling
Analysis
Screw compressors
Screw compressors
Circular profiles
Asymmetric profiles
Cycloid profiles
EXAMPLES:
The Scientific and Engineering Center «Compressor, Vacuum, Refrigeration and Pneumatic Systems» actively uses modern software systems ANSYS, Vista CCD, AFD, Numeca, Comsol, NREC, IOSO, as well as software systems of its own design.
All calculation work carried out by our scientific and engineering centre is based on our own model tests (more than 350 tests). Calculations in software packages are carried out with the mandatory validation of the received data. Solving non-stationary tasks URANS SST and LES.
URANS SST and LES unsteady tasks solution.
Pneumatic audits and the development of optimal pneumatic systems with any complexity for enterprises on the basis of mathematical modelling on their own software verified on real objects.
