Brayton’s subatmospheric inverse cycle with regeneration of output heat by Maisotsenko’s cicle

Abstract

Субатмосферный обратный цикл Брайтона с регенерацией выходной теплоты по циклу МайсоценкоРассмотрен новый термодинамический цикл с высокой степенью регенерации, использующий солнечную энергию и энергию окружающей среды в форме психрометрической разности температур. Особенностью цикла является высокий коэффициент полезного действия, значительно превышающий КПД газотурбинных установок, работающих по циклу Брайтона. Показано, что при малой мощности (до 10 кВт) установка может использовать для производства электричества только психрометрическую и солнечную энергию.

Energy Saving Potential by Using Maisotsenko-Cycle in Different Applications

“…Because of gas turbine working fluid enthalpy increment, less fuel is utilized in burning process. It was confirmed by Khalitov et al that the cycle efficiency may reach even 55% [16]. Due to great amount of water vapor in the air for combustion, NO x pollution is minimalized.…”

Comparative Exergy Analysis of Units for the Porous Ammonium Nitrate Granulation

“…Its scheme and the cycle in h-s coordinates is shown in Figures 4 and 5, respectively. A preliminary calculation of the Brayton's sub-atmospheric inverse cycle with HAR [30] is carried out to determine the generated useful power. Its scheme and the cycle in hs coordinates is shown in Figures 4 and 5, respectively.…”

“…In the chemical industry, which simultaneously can use many flows with various substances with different thermal and caloric parameters, it is essential to ensure the most complete and positive effect of some processes on others. So, for example, in the utilization ejector module for the granulation scheme of porous ammonium nitrate [24,28], in addition to the nitrogen oxides conversion into higher oxides (the main effect), there is a significant inflow of thermal energy (secondary energy resource), which can and should be used (heating, drying, humidification, electricity generation [29,30]) for the needs of their chemical production or related enterprises/workshops or the population. It is advisable to organize a staged heat removal and recuperation since it will let more efficiently distribute energy between its consumers to ensure the available secondary energy resources use.…”

“…Besides, these devices use renewable energy from the environment [31] which, in addition to other renewable energy sources (e.g., solar), develops modules using the reverse sub-atmospheric Brayton cycle and makes a significant positive contribution to the overall scheme efficiency. Some researchers and organizations (GTI, SoftInWay), who provide promising theoretical calculations results [30,32], have studied the sub-atmospheric reverse Brayton cycle. Among the leading scientific and practical problems in implementing this cycle is to develop a highly efficient heat and mass transfer device-a recuperator.…”

“…that can be utilized within the circuit design and minimize harmful emissions into the environment. For example, replacing an electric heater with an ejector recycling module to obtain the high temperatures required for the drying process leads to the fact that the residual heat is used to heat water and to generate electricity in the sub-atmospheric Brayton cycle [30,50,51]. In the research Živić [52], the authors calculated the Brayton cycle with different features.…”