Download Heat Transfer Enhancement of Heat Exchangers (NATO ASI by Sadik Kakaç, Arthur E. Bergles, F. Mayinger, Hafit Yüncü PDF

By Sadik Kakaç, Arthur E. Bergles, F. Mayinger, Hafit Yüncü

Warmth move enhancement in single-phase and two-phase circulation warmth exchangers in very important in such business purposes as strength producing plant, method and chemical undefined, heating, air flow, air con and refrigeration platforms, and the cooling of digital apparatus. power rate reductions are of basic value within the layout of such platforms, resulting in extra effective, environmentally pleasant units. This publication offers worthwhile info for such reasons.

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Thiel D (2004) Switched parasitic and controlled reactance parasitic antennas: a systems comparison. Antennas and propagation society international symposium, 2004 IEEE, pp 3211–3214 38. Hansen R (2009) Phased array antennas. Wiley, New York 39. Monzingo R et al (2009) Introduction to adaptive arrays, 2nd edn. SciTech, Perth 40. Primak S, Kantorovich V (2011) Wireless multi-antenna channels: modeling and simulation. 1 Introduction Any electronic system with an antenna array consists of two or more antenna elements, beam forming network, and a receiver or transmitter.

The broadside directivity of the linear array factor with amplitude distribution In and equal phases for all elements is given by [19, 20]. 28 2 Typical Array Geometries and Basic Beam Steering Methods Fig. 2 Linear Array Factor for Equally Spaced Elements 29 to the edges. When the distance between the array elements is equal to half of the wavelength, gtaper is given by  gtaper ¼ N P 2 In n¼1 NÁ P In2 ð2:9Þ For a uniform amplitude distribution, excitation efficiency is equal to 1. 7 dB). 4 shows simulation result examples of the linear array factor with the number of elements N = 8, interelement spacing equal to half of the wavelength, and different non-uniform amplitude distribution functions (normal to the array (direction z) corresponds to the angle 0°).

In: Proceedings VTS 2002-Fall, IEEE 56th Vehicular Technology Conference pp 1096–1099 13. Khaleghi A et al (2005) Diversity techniques with dipole antennas in indoor multipath propagation. In: IEEE 16th international symposium on personal, indoor and mobile radio communication pp 669–673 14. Monzingo RA, Miller TW (2005) Introduction to adaptive arrays, SciTech Publishing 15. Robert C Hansen (2009) Phased array antennas, 2nd edn. Wiley, New York 16. Shen W et al (2007) A compact high performance linear series-fed printed circuit antenna array.

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