A model developed for multicomponent gas separation using hollow-fiber contactors permits simulation of cocurrent, countercurrent, and crossflow contacting patterns with permeate purging (or sweep). The numerical approach proposed permits simulation to much higher stage cuts than previously published work and provides rapid and stable solutions for cases with many components, with widely varyin...

The airconditioning systems of buildings have been diversified in recent years, and the complexity of the system has been increased. At the same time, stability in the system and the low-running cost are demanded. To solve these problems, various researches have been done. The development of the energy load prediction systems and the faults detection and diagnosis systems have received greater ...

Water and air pollutants have huge impacts on the entire living system. In addition, the newly emerging nanopollutants, increasing global warming, and consequent climate changes are posing major threats to the freshwater or fresh air availability. This has made it urgent to invent an appropriate water/air treatment technology that removes nanopollutants and also desalinates water to a significa...

A revolution of the global energy industry is without an alternative to solving climate crisis. However, renewable sources typically show significant seasonal and daily fluctuations. This paper provides a system concept model decentralized power-to-green methanol plant consisting biomass heating with thermal input 20 MWth. (oxyfuel or air mode), CO2 processing unit (DeOxo reactor MEA absorption...

Both imidazolium and 1,2,4-triazolium cations are important functional moieties widely incorporated as building blocks in poly(ionic liquid)s (PILs). In a classical model, PIL usually contains either or its repeating unit. Herein, via exploiting the slight reactivity difference of alkyl bromide with imidazole 1,2,4-triazole at room temperature, we synthesized dual-cationic homopolymers carrying...

In this investigation, the performance of a tower for absorption of sulphur dioxide gas into calcium carbonate solution has been studied. The trays had no downcomer and the tower itself was a scaled down pilot from industrial equipment. The industrial scale tower was used for clean up of 110000 m3/hr gas using 40 m3/hr alkaline solution. The study was composed of two parts. In the first section...

Fundamental characteristics of decentralized separation control in a high density air corridor are discussed. A high density air corridor is expected to be an air space where aircraft capable of airborne self-separation are allowed to fly into the same direction. Some decentralized control algorithms are indispensable for its operational safety and a large traffic throughput. In this study two ...