Primenenie opyta proektirovaniya kriogennykh turbodetanderov pri razrabotke turboelektrogeneratora moshchnost'yu 1 kVt dlya ustanovki s organicheskim tsiklom Renkina

The paper presents the results of the experimental study of the stage of a radial axial centripetal turbine at 1,3 kW capacity to drive a highfrequency electric generator at 1 kW nominal capacity that is a part of the plant operating on the organic Rankine cycle. In cryogenic engineering a considerable volume of data on design of centrifugal radial axial lowtemperature turboexpanders at capacity from 100 W to 1MW at 10,000-500,000 rpm with 15-500 mm runner outer diameter and expansion ratio up to 30 in one stage has been accumulated. This experience was used when developing a compact highspeed turbomachine. The major geometric proportions of the turbine setting were defined on the base of the experience of the cryogenic turboexpander design. The paper cites the results of calculations and experimental study of supersonic flow in the distributor and the turbine runner stage. Analytical calculations of the turbine stage efficiency and the results of detailed numerical modeling agree well with the experiment data confirming by that the miniturbine COP at a level near to 75%.

риогенный турбодетандер, радиальноосевая центростремительная турбина, экспериментальное исследование сверхзвукового течения в направляющем аппарате и колесе турбины, криогенный турбодетандер, радиальноосевая центростремительная турбина, экспериментальное исследование сверхзвукового течения в направляющем аппарате и колесе турбины