Vol. 68, No. 7, 2021

Thermal Engineering

ZAO Scientific Production and Innovation Enterprise Turbocon Turns 30

Prospects for Using Liquefied Natural Gas as Backup and Emergency Fuel at Power Plants Owned by the Gazprom Energoholding Group

O. O. Mil’man, V. B. Perov, M. V. Fedorov, S. N. Lenev and E. A. Popov p. 517 abstract

Turbogenerating Units for Cogeneration and Distributed Power Plants

I. S. Serbin, Yu. G. Savinchenko, O. O. Mil’man and V. M. Tolkachev p. 529 abstract

Turbogenerator Options for a Heat-Recovery Thermal Power Complex on the Basis of a Low-Boiling Working Fluid

B. A. Shifrin, V. B. Perov and V. M. Tolkachev p. 535 abstract

Spatial Active Damping of Vibrations, Vibration Forces, and Pressure Fluctuations Transferred via Expansion Joints in Liquid-Filled Pipelines

A. V. Kiryukhin, O. O. Mil’man, A. V. Ptakhin, A. A. Kiryukhin and L. N. Serezhkin p. 543 abstract

Heat and Mass Transfer and Properties of Working Fluids and Materials

Investigation of the Effect of Fin Configuration and Fin Angle on Thermal Performance of Finned-Tube Heat Exchanger. Experimental Study

K. Goudarzi p. 556 abstract

Energy Saving, New and Renewable Energy Sources

A Hybrid Solar–Geothermal Heat- and Hot-Water Supply System

A. B. Alkhasov, D. A. Alkhasova and M. G. Dibirov p. 564 abstract

Water Treatment and Water Chemistry

Modeling the Dissolved Oxygen Desorption when Superheated Water Enters the Rarefaction Zone

G. V. Ledukhovsky, V. P. Zhukov, Yu. E. Barochkin and E. V. Barochkin p. 570 abstract

Resource-Saving Solutions for Membrane-Demineralization Plants

E. B. Yurchevskii and V. V. Solodyannikov p. 577 abstract

District Heating Cogeneration and Heat-Supply Networks

The Use of the Heat-Accumulation Properties of Heat-Supply Networks and Buildings for the Extension of the Electric Power Output Control Range at Combined Heat and Power Plants