Supercritical carbon dioxide (SCO2) jets are a promising method to assist drilling, enhance oil–gas production, and reduce greenhouse gas emissions. To further improve the drilling efficiency of SCO2 jet-assisted organ-pipe nozzles were applied generate self-excited oscillation jet (SEOSJ). The impact pressure rock erosion capability SEOSJs under both supercritical gaseous CO2 (GCO2) ambient co...

Supercritical carbon dioxide (sCO2) heat to power systems are a promising technology thanks their potential for high efficiency and operational flexibility. However, dynamic behaviour during part-load transient operation is still not well understood further research needed. Additionally, there enough literature addressing suitable control approaches when the objective follow dynamics of load su...

The utilisation of certain blends based on supercritical CO2 (sCO2), namely CO2/TiCl4, CO2/C6 F6 and CO2/SO2, have been found to be promising for enhancing the performance power cycles Concentrated Solar Power (CSP) applications; allowing up a 6% enhancement in cycle efficiency with respect simple recuperated cycle, depending upon nature used blend configuration choice. This paper presents an i...

Single-/multi-objective optimization based on genetic algorithm is employed in the present study to conduct an design for primary heat exchanger (HE) a lead-cooled fast reactor (LFR), where liquid lead and supercritical carbon dioxide (SCO2) are working fluids side cold of HE, respectively. A preliminary model HE was first theoretically calculated by subsection equal transfer power, then perfor...

Compact recuperative heat exchangers are critical components in supercritical carbon dioxide (sCO2) waste to power conversion systems. To investigate their thermohydraulic performance, a model based on the segmental design and ?-NTU method has been developed. Four different types of exchanger have considered: printed circuit with straight channels (PCHE-SC); zigzag (PCHE-ZC); microtube (MTHE); ...

Three heat recovery cycles are studied to recover the waste from exhaust gas outlet of a glass-melting furnace. To determine viability and potential dangers based on techno-economic aspects, three fundamental for UK glass melting furnaces examined. The parametric thermodynamic study reveals effects key parameters: condenser temperature ORC cycle, pressure ratio sCO2 flash Kalina cycle. paramete...

In this work, a novel Carnot battery system comprising chemical heat storage/pump (CHS/P) and Brayton cycle is presented. The reversible reactions selected for are the dehydration of calcium hydroxide hydration oxide. re-conversion reaction into electricity provided by cycle, in which working fluid supercritical carbon dioxide (sCO2). This Battery compared to storage two-tank molten salt sensib...