An end-face mechanical seal, often simply referred to as a mechanical seal, is a type of sealing device used to prevent leakage of fluids, typically in rotary equipment such as pumps, compressors, and mixers. This sealing technology is characterized by two flat surfaces (the "faces") that come into contact with each other, typically made from hard materials (like carbon or ceramic for one face and metal or other materials for the other), and are held together by springs and/or other mechanisms.
Dry running protection refers to a safety mechanism designed to prevent a pump or other equipment from operating without the necessary fluid (like water or oil) present. When a pump runs dry, it can lead to overheating, increased wear or damage to the components, and ultimately equipment failure. Dry running protection systems can include various features, such as: 1. **Sensors:** These may include flow sensors, temperature sensors, or pressure sensors that detect whether a sufficient volume of fluid is present.
Euler's pump and turbine equation relates the mechanical energy transfer in fluid machines like pumps and turbines to the change in pressure, velocity, and elevation as fluid passes through them. The equation is derived from Euler's equation of motion for fluid dynamics and captures how energy is added or extracted from a flowing fluid.
A follower plate pump, also known as a follower plate piston pump or a hydraulic follower plate pump, is a type of positive displacement pump commonly used to transfer viscous fluids. This pump design employs a follower plate, which follows the movement of a piston, allowing it to effectively move thick liquids or slurries that might be challenging for other pump types. ### Key Features of Follower Plate Pumps: 1. **Design:** The pump consists of a cylinder in which a piston moves back and forth.
Gas lift is an enhanced oil recovery (EOR) technique used to increase the production of crude oil from wells. It involves the injection of gas, typically natural gas, into the wellbore to lower the density of the liquid column (oil and water) in the reservoir, which reduces the hydrostatic pressure that the pump must work against. This facilitates the lifting of oil to the surface, especially in wells where natural reservoir pressure is insufficient to push the oil to the surface.
A float switch is a type of level sensor used to detect the level of liquid within a tank, reservoir, or other container. It works by using a buoyant object (the "float") that rises and falls with the liquid level. When the liquid reaches a certain level, the float activates a switch that can trigger a response, such as turning on or off a pump, alerting a control system, or actuating an alarm.
A foam pump is a type of dispensing device that is designed to create and dispense foam from liquid products, such as soaps, shampoos, lotions, and cleaning solutions. These pumps are typically designed with a mechanism that incorporates air into the liquid as it is dispensed, resulting in a foamy output.
"Handy Billy" can refer to a couple of different things depending on the context, but it is often associated with a type of rigging tool or mechanical device used in maritime or industrial settings. It is typically a small, portable winch or hoist used to pull or lift loads. Another context might refer to "Handy Billy" in different cultural references, such as songs or stories.
Geometrical optics is a branch of optics that describes light propagation in terms of rays. It simplifies the behavior of light by assuming that it travels in straight lines and can be represented as rays. This approach is particularly useful for understanding how light interacts with various optical elements, such as lenses, mirrors, and prisms, where the wavelength of light is much smaller than the dimensions of the optical components.
A gasoline pump, commonly referred to as a fuel pump or petrol pump, is a device used to dispense gasoline or petrol for vehicles. These pumps are typically found at gas stations and are an essential component of the infrastructure for fueling cars, motorcycles, and other vehicles that use gasoline as a power source. Here are some key features and functions of gasoline pumps: 1. **Dispensing Fuel**: Gasoline pumps have nozzles that allow customers to fill their vehicles with fuel.
"Pump" can refer to different things depending on the context. Here are a few common interpretations: 1. **Mechanical Device**: A pump is a mechanical device that moves fluids (liquids or gases) by mechanical action, often converted from electrical energy or another form of energy. Pumps are used in various applications, including water supply, heating and cooling systems, industrial processes, and more.
A radial piston pump is a type of positive displacement pump that features pistons arranged radially around a central axis or cylinder. In this design, the pistons move in and out of their cylinders in a radial fashion, which allows for efficient fluid transfer. Radial piston pumps are often used in hydraulic systems where high pressures and precise control are required.
A rotary compression pump is a type of positive displacement pump that uses rotary motion to compress fluids, primarily gases. These pumps typically consist of one or more rotating elements, such as rotors or screws, that move the gas through the pump mechanism. As the gas moves through the pump, the volume decreases, leading to an increase in pressure. **Key Characteristics of Rotary Compression Pumps:** 1.
A high-density solids pump is a specialized type of pump designed to transport high-density materials, such as slurries, sludges, or mixtures that have a high concentration of solid particles. These pumps are commonly used in various industries, including mining, wastewater treatment, construction, and chemical processing, where the movement of thick, viscous, or heavy materials is required.
A high-efficiency glandless circulating pump is a type of pump designed primarily for circulating fluids in various heating, cooling, and plumbing systems. These pumps are noted for their energy efficiency and their glandless design, which means they do not use mechanical seals (glands) to prevent leaks. Instead, they often employ magnetic drive technologies or other methods that eliminate the need for traditional seals, which can wear out and cause leaks over time.
A Pulser pump is a type of pump commonly used in various industrial applications, especially in hydraulic systems, water treatment, and chemical processing. These pumps are designed to deliver fluid in pulses, rather than a continuous flow. This pulsing action can be beneficial for several reasons, including: 1. **Controlled Fluid Delivery**: The pulsing mechanism allows for precise control over the volume and flow rate of the fluid being pumped.
A finger puppet is a small puppet designed to fit onto a person's finger, allowing the user to manipulate it and create movement. Typically made from materials like fabric, plastic, or felt, finger puppets often represent characters such as animals, people, or fantastical creatures. They are commonly used in storytelling, educational settings, and children's play, providing an interactive way to engage audiences and encourage imaginative play. Finger puppets can also be used in therapeutic settings to help express emotions or facilitate communication.
Jabsco is a brand that is well-known for manufacturing marine and industrial pumps, as well as various other fluid transfer equipment. Jabsco pumps are commonly used in applications such as: 1. **Marine Use**: Jabsco pumps are particularly popular in the boating and marine industry for tasks such as bilge pumping, fresh water supply, waste transfer, and deck wash systems.
The Kearny air pump is a type of air pump developed to achieve high levels of vacuum, particularly in laboratory and industrial settings. It was invented by American engineer and inventor, William Kearny, in the early 20th century. The design typically utilizes principles that allow for the efficient removal of air or other gases from a closed system to create a vacuum, making it suitable for various applications in science and technology.
A liquid-ring pump is a type of positive displacement pump that uses a rotating mechanism to create a partial vacuum or to compress gases. The design consists of a cylindrical chamber with an impeller, which is typically mounted off-center. As the impeller rotates, it throws liquid—usually water or another suitable liquid—against the inner wall of the casing, forming a ring of liquid.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact