نتایج جستجو برای: longitudinal rectangular fin

تعداد نتایج: 164281  

Journal: :International Journal of Advanced Research in Engineering Innovation 2023

In this paper, an experimental study was achieved for the melting process of a phase change material around copper tube with three longitudinal fins that placed inside rectangular plastic container as horizontally latent thermal energy storage unit (LTESU). A paraffin wax used (PCM). Some parameters were considerable in work like directions at angles (0°, 30°, 60° and 90°), temperature water en...

Journal: :Zootaxa 2013
André L Netto-Ferreira Hernán Lopez-Fernandez Donald C Taphorn Elford A Liverpool

Lebiasina ardilai is described from the upper Mazaruni in Guyana. The new species differs from all its congeners by its color pattern consisting of: a narrow, nearly straight primary stripe, extending from posterior to humeral blotch to near the vertical through anal-fin origin, being absent or inconspicuous in females and conspicuously marked in males; the presence of four series of dark blotc...

Journal: :Sustainability 2023

This study discussed the effect of ribbed fin, which was suggested by authors, on enhancement heat transfer and flow characteristics fluid in a solar air heater. The fin has rectangular rib at base side surfaces fin. Thus, it can increase coefficient field heater as well extend area. simulation performed with various Reynolds numbers, relative heights, pitches rib. presence enhances performance...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2014

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
sayed hossein karparvarfard azam vakili farahani

in order to increase the efficiency of the conveyance of the granular solids, a new experimental set-up is designed. the test rig has longitudinal trapezoidal slots in its conveying pipes. through experimentation, a correlation for friction factor in terms of solid mass flow rate, fluid flow rate and froude number is presented. it is shown that the mixture friction factor for pipes with inner t...

Journal: :Zootaxa 2014
Unmesh Katwate Fibin Baby Rajeev Raghavan Neelesh Dahanukar

Francis Day described Pethia punctata from Cochin, on the Malabar (south western) coast of India. Although, the species is now recovered from its synonymy with P. ticto, an accurate diagnosis and description have been lacking. A redescription of P. punctata based on external morphology, osteology and genetics is provided, which revealed that P. muvattupuzhaensis, described from Muvattupuzha Riv...

2005
Eric von Holst

In 1926, when C. M. Breder published his classic monograph on the locomotion of fishes (Breder, 1926), little was known about how fish coordinate movement among fins. Despite Breder’s wide-ranging functional and phylogenetic analysis of different modes of fish swimming, followed in 1930 by the pioneering physiological work of Eric von Holst (1973), who looked at general patterns of fish fin mov...

2014
Andrew Sommers Anthony M. Jacobi A. D. SOMMERS A. M. JACOBI

In air-cooling applications with frost production, heat exchanger performance is often air-side limited, because the two-phase flow of the refrigerant provides excellent heat transfer coefficients, and because designers typically use a large air-side fin spacing for frost tolerance. The large fin spacing prolongs operation of the heat exchanger by mitigating the effect of the accumulating frost...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2017

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