垂直轴风力涡轮机械项目188金宝搏怎么样

抽象的

We know that for windmills to operate there must be wind, but how do they work? Actually there are two types of windmills — the horizontal axis windmills and the vertical axis windmills. The horizontal axis windmills have a horizontal rotor much like the classic Dutch four-arm windmill. The horizontal axis windmills primarily rely on lift from the wind. As stated in Bernoulli’s Principle, “a fluid will travel from an area of higher pressure to an area of lower pressure.” It also states, “as the velocity of a fluid increases, its density decreases.” Based upon this principle, horizontal axis windmill blades have been designed much like the wings of an airplane, with a curved top. This design increases the velocity of the air on top of the blade thus decreasing its density and causing the air on the bottom of the blade to go towards the top … creating lift. The blades are angled on the axis as to utilize the lift in the rotation. The blades on modern wind turbines are designed for maximum lift and minimal drag.

There are many types of windmills, such as: the tower mill, sock mill, sail windmill, water pump, spring mill, multi-blade, Darrieus, savonis, cyclo-turbine, and the classic four-arm windmill. All of the above windmills have their advantages. Some windmills, like the sail windmill, are relatively slow moving, have a low tip speed ratio and are not very energy efficient compared to the cyclo-turbine, but are much cheaper and money is the great equalizer.

多年来风车有很多改善。风车已经配备了空气突破，以控制强风的速度。一些垂直轴风风车甚至配备了铰接刀片，以避免高风速的应力。一些风车，如环涡轮机，已经配备有叶片，该叶片感测风向并使转子旋转到风中。风力涡轮发电机已配备齿轮箱以控制[轴]速度。风力涡轮机还配备了发电机，该发电机将轴功率转换为电力。风车上的许多帆也被螺旋桨式翼型取代。有些风车也可以在风中停滞以控制风速。但最重要的是所有这些改进，当芬尔发明时，1745年对风车的最重要改善。芬明自动将帆旋转到风中。

风车的另一个必要性是塔。塔有很多类型的塔楼。有些塔有Guy电线支持它们，其他塔没有。没有GUE电线的塔被称为独立塔楼。考虑到塔的东西是它必须支持风车的重量随着塔的重量。塔也有拖累。科学家估计，在21世纪，世界上百分之十的电力将来自风车。

介绍

If the efficiency of a wind turbine is increased, then more power can be generated thus decreasing the need for expensive power generators that cause pollution. This would also reduce the cost of power for the common people. The wind is literally there for the taking and doesn’t cost any money. Power can be generated and stored by a wind turbine with little or no pollution. If the efficiency of the common wind turbine is improved and widespread, the common people can cut back on their power costs immensely.

自从七世纪七世纪以来，人们一直在利用风，让他们的生活更容易。风车的整个概念起源于波斯。波斯人最初用风灌溉农场，粉碎谷物和碾磨。这可能是Windmill术语来自哪里。自从欧洲的风车广泛使用以来，在十二世纪，荷兰等一些领域繁荣创造庞大的风电场。然而，第一个风车不是很可靠或节能。仅利用了帆旋转的一半。它们通常是缓慢的并且具有低尖端速度比，但对扭矩非常有用。

自创造以来，人们不断尝试改善风车。因此，多年来，风车上的刀片数量减少了。大多数现代风车有5-6刀片，而过度风车有4〜8刀片。过去的风车也必须手动地指向风，而现代风车可以自动变成风。过去创建它们的帆设计和材料也发生了变化。

在大多数情况下，转子的高度与其效率成正比。事实上，现代风力涡轮机应至少二十英尺高，距离障碍物300英尺，尽管它更为理想，它是30英尺高出30英尺，距离任何障碍物的五百英尺。不同的位置有各种风速。有些地方，如英国群岛，因为风速高，居民少，但它们是风发电的理想选择。您是否知道世界上最大的风电场位于加利福尼亚州，而且风电源总量超过1,400兆瓦的电力？（典型的核电站产生1000兆瓦。）

SPECIFICATIONS OF THE WIND TURBINE

BASE DIMENSIONS

高度111.6cm.

宽91.44厘米

Breadth 122cm

BLADE DIMENSIONS

Height 73cm

Diameter 122cm

Thickness 0.1cm

角度45°

角度B / W刀片60°

轴尺寸

Diameter 2.54cm

长度为91.44厘米

PULLEY DIMENSIONS

Diameter 28cm

Hole Diameter 2.54cm

Total Height of the assembly 198cm

Center Distance of Pulley 33.5cm

好处

• It is a renewable source of energy.

• Wind power systems are non-polluting so it has no adverse influence on the environment.

• Wind energy systems avoid fuel provision and transport.

•小规模，高达几千瓦系统的昂贵。

•大规模成本可能具有竞争力的传统电力，并且批量生产可以实现降低成本。

•它们总是面对风 - 无需转向风。

• Have greater surface area for energy capture -can be many times greater.

•在胃肠风中更有效 - 已经面临着阵风。

•可以安装在更多地点 - 在屋顶上，沿着高速公路，停车场。

•可以更轻松地缩放 - 从磨坊瓦特到兆瓦。

• Can have low maintenance downtime – mechanisms at or near ground level.

•产生较少的噪音 - 低速意味着较少的噪音

•转子可以从每个方向上缠绕风。

垂直轴风力涡轮机的缺点

1）一些缺点是，盗贼的拥有是它们在蠕动风中的倾向。瓦文的起始扭矩非常低，以及动态稳定性问题。瓦文对非设计情况敏感，并且安装高度低于操作以降低风速环境。

2) The blades of a VAWT are prone to fatigue as the blade spins around the central axis. The vertically oriented blades used in early models twisted and bent as they rotated in the wind. This caused the blades to flex and crack. Over time the blades broke apart and sometimes leading to catastrophic failure.

3) Research programmers’ (in 2011) have sought to overcome the inefficiencies associated with VAWTs by reconfiguration of turbine placement within wind farms. It is thought that, despite the lower wind-speed environment at low elevations, “the scaling of the physical forces involved predicts that [VAWT] wind.

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