نتایج جستجو برای: variable intercooler effectiveness

تعداد نتایج: 574791  

Journal: :journal of modern processes in manufacturing and production 2015
shahram azizifar salem banooni

in this article, modeling and optimization of power consumption of two–stage compressed airsystem has been investigated. to do so, the two – stage compressed air cycle with intercooler offajr petroleum company was considered. this cycle includes two centrifugal compressors, ashell, and a tube intercooler. for modeling of power consumption, actual compressors isentropicefficiencies and intercool...

Salem Banooni Shahram Azizifar,

In this article, modeling and optimization of power consumption of two–stage compressed air system has been investigated. To do so, the two – stage compressed air cycle with intercooler of FAJR Petroleum Company was considered. This cycle includes two centrifugal compressors, a shell, and a tube intercooler. For modeling of power consumption, actual compressors isentropic efficiencies and inter...

Salem Banooni Shahram Azizifar,

In this article, modeling and optimization of power consumption of two–stage compressed air system has been investigated. To do so, the two – stage compressed air cycle with intercooler of FAJR Petroleum Company was considered. This cycle includes two centrifugal compressors, a shell, and a tube intercooler. For modeling of power consumption, actual compressors isentropic efficiencies and inter...

Journal: :Entropy 2015
Zhenying Zhang Lirui Tong Xingguo Wang

Four different double-compression CO2 transcritical refrigeration cycles are studied: double-compression external intercooler cycle (DCEI), double-compression external intercooler cycle with an expander (DCEIE), double-compression flash intercooler cycle (DCFI), double-compression flash intercooler cycle with an expander (DCFIE). The results showed that the optimum gas cooler pressure and optim...

2014
Yun Hong Hwang Aydin Celik Reinhard Radermacher Yunho Hwang

The performance of four CO2 cycle options was measured for three different evaporating temperatures, 7.2, -6.7, and -23.3°C under the ARI Standard 520 for the condensing units . Four cycle options were a basic cycle, a cycle with a suction line heat exchanger, a cycle with an intercooler, and a two -stage split cycle. The compressor used in testing was a hermetic, rotary type two-stage compress...

Journal: :IOSR Journal of Mechanical and Civil Engineering 2012

Journal: :Annual Reviews in Control 2002
Lars Eriksson Lars Nielsen Jan Brugård Johan Bergström Fredrik Pettersson Per Andersson

Turbo charged SI engines are a major possibility in the current trend of down-sized engines with preserved drivability performance. Considering control and supervision it is favorable to have a mean value model to be used e.g. in observer design. Such models of turbo engines are similar to those of naturally aspirated engines, but there are some special characteristics, e.g. the interconnected ...

Journal: :Energies 2022

Owing to the stringent regulations on pollutant emissions that are imposed by International Maritime Organization and increasing fuel prices, there has been significant research developing cleaner fuels novel propulsion systems. This study presents a techno-economical risk assessment method for evaluating alternative technologies as substitutes heavy oil two-stroke diesel engines in marine tran...

Journal: :International Journal of Hydrogen Energy 2021

The thermal management of a proton exchange membrane fuel cell (PEMFC) is crucial for vehicles. This paper presents new simulation model the water-cooled PEMFC stacks automotive vehicles and cooling systems. system considers both stack compressed air through intercooler. Theoretical analysis was carried out to calculate heat dissipation requirements system. case study results show that more tha...

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