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- W2124222770 abstract "The present paper deals with experimental and numerical investigations of the influence of ventilation and air Conditioning supply and extract openings on Air flow pattern and the temperature in a large industrial transformers room . This work focuses on air flow patterns and thermal behaviour in industrial building. The effectiveness of a air flow system is mainly determined by the removal of internally produced heat from the transformers in the room (if any) and the supply of fresh air of acceptable quality in the room to replace warm air and reduce thermal load in the zone in question. This is targeted to attain desired temperature regulation for human thermal comfort and machine safe operating thermal conditions. The present experimental facilities include a main actual transformers room which is part of an industrial facility and having principal dimensions of 17 m long x 14 m wide and 6 m high. It includes mainly four dry type transformers; mounted on a concrete skid. The air supply comprises single supply circular duct with four supply outlets. The Extracted air side consists of a single circular duct located at the other end of the room. The transformers were identical units that have the dimensions of length 1.6 m x 2.0 m wide and 2.0 m high. The present local velocity measurements were obtained with a heated wire velocimeter while Platinum Resistance thermometers were employed to measure local temperatures in the room and vicinity of heat source. A numerical study was carried out to define the optimum airside design of the HVAC systems that provides the optimum ventilation and energy utilization. The present model is packaged as a Computational Fluid Dynamics (CFD) program embedded in Code. The numerical approach solves the partial differential equations governing the transport of mass ,three momentum, energy and species in a three dimensional domain under steady state conditions. Grid nodes were densely located in the vicinity of the heat source. The primary objective of the present work is to assess the airflow characteristics and Heat transfer in large air-conditioned configurations with large heat source; reasonably good agreement between measured and predicted air velocities and temperatures were reported. The paper ends with a brief discussion and conclusion." @default.
- W2124222770 created "2016-06-24" @default.
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- W2124222770 date "2006-06-18" @default.
- W2124222770 modified "2023-10-18" @default.
- W2124222770 title "Fluid Flow Regimes and Thermal Patterns in Air Conditioned Transformers Room" @default.
- W2124222770 cites W1989985650 @default.
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- W2124222770 doi "https://doi.org/10.2514/6.2006-4093" @default.
- W2124222770 hasPublicationYear "2006" @default.
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