In this paper, a lumped parameter mathematical model for hot water geothermal reservoirs is developed and applied to the Cerro Prieto geothermal field in Mexico. The production and pressure histories of Cerro Prieto were assembled from field data. A computer program was then used to perform sensitivity studies on reservoir size, porosity, aquifer recharge, and temperature of recharge fluid. Two...

in this study a new minimum lumped electrical model of total circulatory system through numerical solutions to approximate the response of the human circulatory system was presented. among five existent ventricular elastances as activity function of heart pumps, a more accurate model was chosen as well as the operation of baroreflex system to accommodate variations in heart rate and systemic va...

This work is on deriving precise lumped parameter thermal networks for modeling the transient characteristics of electric machines under variable load conditions. The goal to facilitate an accurate estimation temperatures critical machines' components and allow running derived model in real time adapt motor control based history maximum permissible temperatures. Consequently, machine's capabili...