Desiccant wheels are widely used in buildings to control humidity and reduce energy consumption. A model is presented based on transient coupled heat and mass transfer, to model, design and analyze the effects of geometrical characteristics of a honeycombed rotary desiccant wheel and its performance. Governing equations are solved numerically using finite volume method and the model is validate...

Changes in the physical structure of urban streams can occur abruptly due to flashy high-flow events and subsequently alter stream processes, including transient storage and nitrate uptake. We examined temporal variability in transient storage and nitrate uptake by exploring the effects of altered physical characteristics resulting from a single high-flow event in three reaches of Spring Creek,...

This study introduces a novel approach to model the hydraulic fractures in a shale reservoir using a common stochastic method called “random-walk.” The goal of this work is to capture part of the “complexity” of a fracture/fracture network that has been generated by a hydraulic fracturing treatment and to attempt to characterize this fracture network using reservoir performance signatures. The ...

In the framework of a Coordinate Research Project (CRP) endorsed by International Atomic Energy Agency (IAEA), Department Astronautical, Electrical and Engineering (DIAEE) Sapienza University Rome has developed thermal–hydraulic model Fast Flux Test Facility (FFTF). FFTF was Sodium-cooled Reactor (SFR) Westinghouse Electric Corporation for U.S. Energy, which operated from 1980 to 1992. The main...

Abstract The hydraulic transients are obvious during the operation and adjustment of large-scale district heating (DH) network. Hydraulic transient modeling simulation methods can provide basis for efficient DH In this paper, two models, distributed parameter model (DPM) lumped (LPM), were established Efficient numerical algorithms presented models. proposed DPM LPM both applied to a network si...