Paper Key : IRJ************167
Author: Rajeswari Chaini
Date Published: 16 Oct 2023
Abstract
Liquid nitrogen warms up at room temperature (27C) because of its low liquefaction temperature of - 196C. In this stage, it undergoes first a phase change (from liquid to gas), which results in an expansion of 174.6 times the original volume of liquid. The resulting nitrogen gas is than warmed by room temperature expanding an extra 3.7 times. Hence, the net expansion for liquid nitrogen is 645.3 (i.e., 174.6 3.7) times the original volume when heated to room temperature. Due to the non-ideal gas behavior of N2 at such extreme pressures, the theoretical pressure of the container would be over 30000 PSI. Due to this dramatic expansion the liquid nitrogen vaporize to create high-pressure in the presence of a Heat Exchange Pressurize Tank (HEPT) very quickly. In the present paper, the engineering and technical details of the HEPT discussed, which is capable to deliver very high-pressurized gas jet via an adjustable nuzzle and rotate a turbine with very high speed, hence produces electricity with a generator efficiencies of 0.85 at 40 psi. This portable LN2 based electric power generator can provide vital information to built an alternative electric power plant for industries.
DOI LINK : 10.56726/IRJMETS45278 https://www.doi.org/10.56726/IRJMETS45278