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Many hydrate-bearing sediments are featured with unconsolidated argillaceous siltstones, which can pose a great challenge for gas production due to the migration of fine clay and silt particles (or sandout) that can restrict sustainable gas flow. In this study, based on the geological characteristics of unconsolidated argillaceous siltstones in typical subsea sediment, a controlled sandout or limited...
In this work, 3-Dimethylaminopropylamine (DMAPA), 3-Diethylaminopropylamine (DEAPA) and 3-Piperidinopropylamine (3PDPA) were selected to investigate the influence of substituent type to the CO2 capture performance. The molecular structure of selected diamines can be described as H2NCH2CH2CH2N-R2 (R = CH3, CH2CH3 and (CH2)5). The experimental results shows that the CH2CH3 as a substituent connected...
A new method for geothermal exploitation from hot dry rocks by recycling heat transmission fluid in a horizontal well via a closed loop is proposed, in which the costly and complex hydro-fracturing can be avoided. In this paper, numerical simulation models were established to calculate the heat mining rate for the new technology to assess its technical and economic feasibility. Sensitivity studies...
This paper develops a simulated annealing based multi-objective cultural differential evolution (SA-MOCDE) for solving daily hydrothermal operation scheduling with economic emission (SHOSEE) while considering water transport delay and transmission loss of system load, and it is formulated for optimizing thermal cost and emission issue with complex non-convex constraints. The simulated annealing technique...
Short-term hydrothermal generation scheduling aims at determining optimal hydro and thermal generations to achieve minimum fuel cost of thermal plants for a 1 day or a 1 week while meeting various hydraulic and electric system constraints. The problem is viewed as a complex and nonlinear hard problem considering valve-points effects and transmission losses with a set of operation operational and physical...
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