machine-design

Learn why mechanical seals leak in pumps and how to prevent it. This practical guide covers common causes—contamination, cooling failure, and maintenance mistakes—and explains proven fixes for chemical and process plant engineers.

Labyrinth seals are non-contact seals used in rotating machinery in chemical plants. Learn how they work, where they are applied, their advantages, and important limitations compared to mechanical seals.

Jacketed pressure vessels are used for heating or cooling, but do you need to calculate their strength? This beginner-friendly guide explains when and why strength calculations are necessary—with simple examples and tips.

Learn the basic structure and key components of centrifugal pumps — including impeller, casing, seals, bearings, and couplings.A practical guide for plant engineers and beginners in chemical or mechanical design.

Learn the basics of P&ID instrument symbols in chemical plants. A beginner-friendly guide to understanding what each letter and shape means in simple terms.

Why perspective matters for chemical plant engineers. Using pump design as an example, this article explains how engineers evolve from beginners to senior professionals by expanding their technical vision and system-level thinking.

Learn what critical speed means in agitator design. This practical guide explains resonance principles, simple calculations, and why partial liquid operation poses the highest risk.

初心者でもわかる撹拌槽の撹拌軸強度計算の基本を解説。ねじりモーメント・曲げモーメントから軸寸法の決め方まで、実務で使えるステップを丁寧に紹介します。オーナーエンジニア必見。

Learn the basics of flooding in packed towers. Understand why it happens, what it looks like, and how to prevent it in chemical plant operations.

Learn the fundamentals of agitator design by understanding power per unit volume (Pv) and its relationship with motor power. Practical guidance for scale-up, slurry mixing, and equipment specification.