How Hand Pumps Work - Video Course Sample @savree-3d

Uploaded October 2025 | Updated September 2026, 1 week ago

This video is a sample from the saVRee engineering video library, which contains over 100 hours of video content covering mechanical, electrical, marine, power, nuclear, and industrial engineering topics.

In this sample, we talk briefly about the core principles behind hand pumps (human-operated positive displacement pumps), including their design and robust nature, operational mechanics (how they move water using suction and displacement), their key components (suction inlet, piston assembly, discharge pipe), and their historical / public health significance (e.g. John Snow’s cholera work).

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How Hand Pumps Work - Video Course Sample

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$How Watertube Boilers Work (Engineering) Want to LEARN about engineering with videos like this one? Then visit: https://courses.savree.com/ Want to TEACH/INSTRUCT with the 3D models shown in this video? Then visit: https://savree.com/en/teach-engineering Want to TRAIN your workforce or employees using videos like this one? Then visit: https://savree.com/en/enterprise-engineering-training And dont forget to sign-up to our newsletter for free engineering Handbooks, Videos, and Courses. https://courses.savree.com/pages/email-signup ****************************************************************** Learn how watertube boilers work! This 3D animated video shows you all of a watertube boiler’s main components and how it works! Like this video? Then check out our other videos! 🚢 Marine Diesel Two Stroke Engine - How it Works! - https://youtu.be/IM8rxp8qB8k 🚢 Ship Parts and Terminology Explained! - https://youtu.be/Xm-F2rPU_NU ⚙️How Deaerators Work! - https://youtu.be/M_jOsTWVIH8 ⚙️How Shell and Tube Heat Exchangers Work! - https://youtu.be/OyQ3SaU4KKU ⚙️How Power Grids Work! - https://youtu.be/fUWRyhsutL8 ⚙️How Watertube Boilers Work! - https://youtu.be/fUWRyhsutL8 ⚙️How Dams Work (Hydro Dams)! - https://youtu.be/ztM6tL6LtFs 💡Control Valve Types (Gate Valve, Globe Valve etc.)! - https://youtu.be/OyQ3SaU4KKU 💡Transformer Parts and Functions! - https://youtu.be/3osmO4FQ2Yg 💡Plate Heat Exchangers Explained! - https://youtu.be/7TTF4aU3Pcs 📚Want to learn more about engineering? Then join saVRee to access over 45 hours of engineering video courses! New courses every month! https://courses.savree.com/ Hope to see you on a course soon! 👋 🏫Want to use the 3D model in this video to present, instruct, or teach? Simply join saVRee! We have over 400 engineering models that will make your life a lot easier! https://savree.com/ 📱Check out our socials! https://linktr.ee/savree 📖You can learn more about engineering in our technical encyclopedia: https://savree.com/en/encyclopedia ▶️Introduction Watertube boilers (also spelt as ‘water tube’ or ‘water-tube’) are used whenever a large steam production capacity is required; they are typically high pressure and high temperature boilers. This design of boiler is used extensively in the power generation industry to provide steam for steam turbines. Smaller watertube boilers may be used in industrial plants that have a high steam demand, but low fluctuations in demand. The 3D model shown in the video is a coal fired watertube boiler. Coal is the primary fuel for most thermal power stations because it is relatively cheap whilst also having a comparatively high heat value. Raw coal is fed to the coal pulverisers then into the boiler where it is burnt. Centrifugal fans are used to supply the primary and secondary air required for combustion. Water enters the boiler through the economiser and is gradually heated as it passes to the steam drum. Water exits the steam drum via downcomers then flows through the front, rear, and side furnace walls. The tubes surrounding the furnace are called ‘risers’ due to the water rising-up through the tubes. After the furnace walls, the water has been converted to wet steam, and it flows to the steam drum. Dry saturated steam exits the top of the steam drum and flows to the primary superheater, platen superheater, and finally through the secondary finishing superheater. Steam is discharged from the boiler to the high pressure steam turbine. At this stage, the superheated steam is ‘dry’ and contains no entrained moisture (it has a high dryness fraction and high enthalpy -see our thermodynamics course to learn more-). After the steam has transferred some of its heat to the high pressure steam turbine, it is returned to the boiler to be reheated in a reheater superheater; the steam then enters the intermediate pressure steam turbine and low pressure steam turbine(s). Exhaust/flue gases are discharged from the boiler via the stack. Note that heat is transferred to the water via radiation (in the furnace), conduction (through the tube walls) and convection (as the hot gases pass through the boiler). ********** #saVRee_Nuggets, #saVRee$

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