This article presents heat transfer and fluid flow characteristics in a solar air heater (SAH) channel with multi V-type perforated baffles. The flow passage has an aspect ratio of 10. The relative baffle height, relative pitch, relative baffle hole position, flow attack angle, and baffle open area ratio are 0.6, 8.0, 0.42, 60 ̋, and 12%, respectively. The Reynolds numbers considered in the stud...

This study investigates the effect of nonlinear strengths sloshing on damping performance side-mounted perforated baffles and discusses influence resonance characteristics flow. The model score is adopted to evaluate strength water sloshing. A microscopic a volume-averaged macroscopic are established simulate flow in two-dimensional (2D) tank with baffles. In addition, series experimental tests...

Influence of a vent hood at the exit of exhaust flue gas and flue baffles in the firetube on the temperature and flow fields of a gas tank water heater, as well as thestructure and amount of heat transferred to the water tank has been studiednumerically using two-dimensional steady state finite element simulation.Observations show that without a vent hood, there is a downward gas flow in theflu...

Flow in a circular pipe fitted with segmental baffles may be treated as a shellwithout-tube system. Its pressure drop has been calculated by adapting the Kern correlation [1] for pressure drop in the shell side of shell-and-tube heat exchangers. The Kern correlation is essentially based on the Hagen – Poiseuille equation for laminar flow, but flow visualization results presented here show that ...

The study?s main objective is to assess a channel heat exchanger?s thermal and hydraulic characteristics in the presence of turbulent air-flow at fixed Reynolds number. Using two distinct versions obstacles terms their shape, fix?ation, arrangement, baffles fins are implanted inside channel. To convert conventional flow path into wave-shaped one, first model contains rectangular alternately dis...

A 25-year-old woman with complete transposition of the great arteries presented for routine follow-up one year post Mustard procedure. She previously underwent balloon atrial septostomy (Rashkind procedure) early after birth, but her family declined further surgery. She developed progressive pulmonary hypertension early in life, shortness of breath on moderate exertion, followed by progressive ...

Chlorine is extensively used to disinfect drinking water supply. However, the design of chlorine contact tank is usually based on the volume displacement criterion, paying attention that detention time would be at least of half an hour. This criterion relies upon the assumption that plug-flow conditions hold along the tank. However, the existence and arrangement of baffles in the tank, and the ...

Metal foam is a novel material recently utilized in baffles as an alternative to solid for reducing flow resistance. However, the metal are accompanied by low heat transfer efficiency. To overcome this issue, new design of copper has been suggested research, called having gradient pore density foam. The either increases or decreases towards wall. So, experimental tests were carried out square c...