Related Experiment Video
Updated: Aug 19, 2025

Power Input Measurements in Stirred Bioreactors at Laboratory Scale
Published on: May 16, 2018
Efficiency of renewable energy plants in Russia
1Financial University under the Government of the Russian Federation, Financial Faculty, Leningradsky avenue, 49, Moscow 124167, Russia.
Abstract:
The aim of this research paper is a complex assessment of the efficiency of power plants in Russia, the basis of their techno-economic processes and indicators and the development of recommendations for their practical use and improvement. Capital expenses for SWH plants with a drain-down system are 1,4-1,6 times lower than traditional SWHs with circulation systems, and their payback period does not exceed 5-5,7 years. Biogas that is obtained from specialized plants of medium and high-power costs $15,000-60,000 per cubic meter. But the price of biogas produced in low energy power plants is about $80,000-270,000, which is cheaper than natural gas. So, the use of biogas is economically justified at the moment.
More Related Videos
Related Concept Videos
Production Efficiency
Conservation of Energy in Control Volume
For steady flow systems, the time derivative of the stored energy becomes zero since there is no energy accumulation within the control volume. This simplifies the energy equation to:
Trophic Efficiency
Mechanical Efficiency of Real Machines
However, in reality, no machine can be truly ideal, and all of them experience some...
Wind Turbine Machine Models
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
Distribution Reliability and Automation

