1. Studies have further shown that the horizontal orientation of the air passages should be such that the body of air entering from each of the passages should be directed at an angle α no greater than 30° with respect to a radius of the tower, as can be seen in FIG. The fins 10 are spaced above the outer surface of the upper body 11 and attached thereto by a plurality of support brackets 23 connected to the fins 10 at the point 22. Thus, when the outex surface of the V shape of the fin 10 faces into the current as shown by the arrow 24, the. By further arranging the air passages in a symmetrical pattern in which each passage introduces the exhaust air from a windmill into the base of the tower at an angle with respect to a tower radius, a swirling action is imparted which develops a vortical upward flow in the tower.
In a modified form a single wind inlet includes a helical passage at the base of the tower to introduce air with a swirling motion and the entire tower and single air inlet are mounted on a rotary platform for movement, under control of a wind direction sensor, to place the inlet in correct position at all times. However, rotor stress considerations limit the blade diameter and maximum air velocity. Since typical windmills have similar efficiencies (theoretical maximum is 0.59) and large scale air density control is not practical, the controlling factor on windmill power is a combination of air velocity and windmill blade area. Within each of the passages 15 a wind operated power generating means, such as a windmill 17 is mounted for customary rotation about a horizontal axis and, in order to confine the air flow for maximum effectiveness in driving the windmill, the inlet end 16 is preferably circular in outline and may be inwardly constricted, as at 18, to provide a venturi effect.
Dolor Espalda Y Abdomen
For the maximum air flow of 28,000 lbm/sec, the 40 ft/sec axial axit velocity indicated an approximate viscous vortex core of 60 ft diameter. It has also been suggested to use a tower having a hyperbolic vertical wall configuration in which the horizontal cross-section converges upwardly from the base to an intermediate level and then diverges to the exit plane at the top, with the vertically rotating blades of the wind turbine located at the narrow throat portion to maximize the increased air velocity at that level since power is proportional to the air velocity cubed, and additional power should be obtained by the vortex core formed in the exhaust draft above the turbine. Yet another object is to provide a wind operated water cooling and power generating tower having air inlet means at its base arranged to introduce atmospheric air into the base in a helical direction to generate a solid core vortex flow air discharge path in the tower.
Dolores Musculares Covid19
Generally, when the generation of power as an ancillary benefit is considered, an unimpeded air draft in the tower is required and water is supplied by nozzles arranged around the interior wall of the tower near the base to minimize the amount of water lost as evaporated vapor. The windmills are located around the tower base periphery for a combination of reasons. Causas dolor muscular generalizado . Nine windmills with 24 foot diameter blades were placed around the tower base. Increased power production results from increasing either the blade diameter or the air velocity. This occurs because the increased effective tower height results in a larger air flow and air velocity through the tower. Also, for a given tower diameter, the air flow is increased by increasing the tower height. Efficiency is further improved by the provision of the additional air inlets 27 which allows air to be drawn in, not only as a result of external wind pressure but due to the suction created by the internal flow of air whereby boundary layer effects are controlled and a more nearly equalized pressure across the entire cross-section of the passages is obtained.
Dolor Muscular En El Pecho
For example, the pressure equivalent of a 30 mi/hr wind is only 0.016 psia. Second, the swirling motion of the vortex flow has a tendancy to maintain its flow pattern for some distance above the tower height, thereby increasing the theoretical draft in Equation 3. By maintaining this swirling motion, the tower plume does not develop as rapidly as for a typical natural draft tower. The vortex has a tendency to maintain its swirling motion upon exiting the tower because of the Helmholtz vorticity concept as set out in I. G. Curries “Fundamental Mechanics of Fluids” McGraw-Hill, New York, 1974, pp. In one form of the invention the tower wall consists of a series of narrow vertical vanes mounted for individual rotation under the control of a wind direction sensor for the purpose of introducing wind into the tower with a swirling movement regardless of the direction from which the wind is arriving.
Dolor Muscular Sin Fiebre
FIELD OF THE INVENTION The present invention relates to cooling towers by means of which wind forces are harnessed to bring ambient air into intimate contact with effluent water discharged at high temperature from a production facility and, as an ancillary benefit, to generate power, to cooling of the effluent water being required to permit its return to the natural stream, or river, from which it was obtained without impairing the ecological balance.
Effluent water is pumped into the interior of the tower at an intermediate level is thereby brought into contact with an upwardly flowing draft of atmospheric air developed by natural wind current which are introduced at the base of the tower. The effluent water was sprayed into the tower at a level of 23 feet above the ground in droplet sizes of 0.05 inch. In addition it may be desirable to introduce additional outside air into the passage to overcome boundary layer effects. The difference between inlet and output pressures is then converted into usable energy. The result was that a minimal increase in power output was accompanied by excessive costs in additional wind turbine support structures. If horizontally rotating windmills are placed at the ground level in the plane of the tower wall the water droplets in the tower cross-sectional area would not be uniformly distributed and poor water cooling would result.
1 is a cross-sectional elevation, taken on the line 1–1 of FIG. FIG. 2 is a horizontal cross-section taken on the line 2–2 of FIG. FIG. 7 is a schematic representation of the effects of a vortex draft as it leaves the exit plane of a cooling tower. The effectiveness of providing the additional air inlets 27 is illustrated in FIG.
Contact between the air and water in the tower is maintained in one of two ways.
The benefit of this homogeneous vortical upward air flow pattern can be seen by a comparison between FIGS. By analogy the forces of the upward drafts disclosed in FIGS. Dolor de cadera y espalda . To avoid this problem the windmills are located at a distance outwardly from the base of the tower and their exhausts are directed by means of horizontal passages to the tower base. However, in operation, the incoming air flow enters the tower from all sides, regardless of the ambient wind direction. Contact between the air and water in the tower is maintained in one of two ways. Heat transfer consideration indicate this cooling to be a function of air flow, tower height to which the water is pumped, ambient air temperature and humidity, and the water path in the tower. First, the vortex generates larger air velocities which increases the heat transfer between the ambient air and water.
The effective increase in tower height resulting from a vortex flow pattern can also enhance windmill power production. 6 illustrates the fact that when the flow of air in a tower 31 moves upwardly in an uncontrolled natural direction the plume 32 of air exiting from the top of the tower is blown to the right by a wind from the left as soon as the plume leaves the tower. Due to the restriction in the flow of air only a minimum of power can be generated by wind turbines placed in the air stream. Thus all of the wind turbines can generate power at the same time.
2 it can be seen that, it there are nine air inlet passages disposed about the base of the tower 10, regardless of the direction from which the wind is blowing, there will always be at least three, and possibly as many as four, of the inlets 16 which are positioned to capture portions of the blowing air and to rotate the windmills 12 positioned directly downstream from those inlets to generate electricity in varying amounts by the devices 18 connected to them. The tower may be filled with rock fragments or may include a lattice-work matrix through which the air current passes to evaporate and cool the water which is continually sprayed on the rock or matrix surfaces. However, it was found that the blades interferred with the tower’s natural drafting ability especially when the velocity of the air draft at the exit plane was in the range of 12-15 ft/sec or less.
- Sangrado entre un periodo y otro
- Russell JA. Empowering musicians: Teaching, performing, living. 2017
- Yoga y pilates
- Análisis sanguíneo (para ver los niveles de glucosa en sangre)
- Cara anterior y medial de la rodilla
It is apparent that for the tower to be able to cool effectively and operate a windmill in the exit plane, the air flow exit velocity must be increased. This is because the density difference between the warm air inside the tower and the cooler air outside the tower results in a pressure difference which causes the air to enter from all sides. This pressure is over 60 times smaller than the available energy in a 1 psi inlet and outlet pressure difference. Dolor de hombro y cuello lado derecho . This results in a reduced windmill exhaust pressure to provide increased power production.