in this work, three-dimensional turbulent forced convection flow through a b-type section pipe, which porous material inserted at the bottom wall, is investigated numerically. the b-type section pipe are used in cooling systems, such as cars’ radiators. the main purpose of this research is to enhance heat transfer and to reduce the scales of such systems. the governing equations are formulated ...

load management and cost optimization are among the important factors in trigenerationsystems and combined cooling, heating and power (cchp) systems. in this study, an innovative cchpsystem uses a gas turbine as the prime mover and has a heat recovery steam generator (hrsg) in addition toan auxiliary boiler, electric and absorption chillers. the system is tied with the bulk electric grid; to ex...

The purpose of this study was to determine and compare the performances of conventional and heat pump systems for energy and water conservation in open and confined greenhouse systems. Conventional gas furnaces and evaporative cooling, respectively, provided heating and cooling in the conventional system. In the heat pump systems, gas-fired heat pump units provided both heating and cooling. The...

Using the analytic estimates developed for the emittance diagnostic channel for the finalstage cooling experiment, we conclude that diagnostics for both an initial-stage cooling experiment, and for the targetry experiment could be performed with a bent solenoid of 1.25 T field strength. The solenoid bore would need to be at least 35 cm for the initial-stage cooling experiment, and at least 50 c...

High-performance computing has become a key enabler to fully utilize the capabilities of systems engineering. This paper describes how simulation-based design, enabled by high-performance computing, is being used to develop a novel cooling system. This study begins by developing the architecture of the novel cooling system. Next, we look at the underlying physics and the requirements of the num...

The objective of this project is to investigate an energy efficient air conditioner to be able to compete with conventional vapour compression systems. Liquid desiccant air dehumidifier/indirect evaporative cooling using cross-flow type Plate Heat Exchanger (PHE) as dehumidifier offers a cost effective and more environmentally friendly air conditioning system. It removes moisture form the air a...

_ ,t 7 £ c_FWe present a model for data reorganization in parallel disk systems that is geared towards load t)ahmcing m an environment with periodic access patterns. Data reorganization is performed by disk cooling, i e., migrating files or extents from the hottest disks to tim coldest <mes. \Ve develop an approximate queueing model for determining the effective arrival rates of cooling request...

Utilizing the combined cooling, heating and power generation (CHP) systems to produce cooling, heat and electricity is growing rapidly due to their high efficiency and low emissions in commercial and industrial applications. In conventional CHP systems the deficit of the system power can be purchased from the grid. However, this system cannot be used as the standalone application. The hybrid so...

There has been a strong interest developing for solar cooling in Australia and this is leading to an increasing number of commercial solar cooling installations. It is timely to review the environment in which an emerging solar cooling industry must operate. This review begins with a look at world leading commercial and research activities in Europe and the benchmarking thus provided. A local c...