Abstract
Under the conditions of the Arctic, in the development of deposits on the shelf of the seas and oceans, a significant role is assigned to underwater equipment, which must have both sufficient power supply and the ability to work for a long time in isolation from the places of permanent deployment. Among the various types of power plants for these purposes, closed micro-gas turbine plants (CMGTP) with a high specific power are of interest. The paper analyzes the characteristics of the operating cycles of various CMGTP schemes, and CMGTP with heat recovery was chosen as the base one, as it is more economical compared to a simple cycle CMGTP and capable of operating in a single-circuit scheme on organic fuel using air as an oxidizer. A mixture of nitrogen, fuel combustion products and oxygen are used as a working medium of the engine. The surplus working medium is removed from the cycle by the compressor overboard. A further increase in the efficiency of a simple cycle by deep utilization of the heat of exhaust gases in a turbocompressor utilizer (TCU) consisting of an overexpansion turbine driving a booster compressor and a regenerator with a gas cooler located between them is proposed. It has been established that the efficiency of CMGTP with TCU and heat regeneration is 1.15... 1.25 times higher than that of the base CMGTP with regeneration, and the specific power increases 1.3... 1.5 times with the optimal compressor pressure ratio in the engine.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
