Top page(English)

Learn the main parts and internal structure of shell and tube heat exchangers — including tubes, tube sheets, shell, baffles, and tie rods — explained simply for engineers and beginners in chemical and process industries.

A practical, calculation-based guide to sizing powder storage hoppers. Learn how to convert geometric volume to usable powder capacity using repose angle, and follow step-by-step rules for concentric and eccentric hopper layouts.

Learn essential tank terminology used in chemical plant design — including heads, jackets, nozzles, weld lines, and supports — explained simply for beginner engineers.

Learn how to use the overall heat transfer coefficient (U) in chemical plants, including calculations and practical field tips.

Learn how to read and use the p-h (pressure-enthalpy) diagram in refrigeration systems. A beginner-friendly guide to understanding each stage of the cooling cycle.

Learn how to select and use plate heat exchangers in chemical plants. This guide explains principles, materials, sealing methods, maintenance strategies, and key risks in liquid–liquid heat transfer.

Learn how steam and water ejectors work in chemical plants. A beginner-friendly guide covering principles, features, and practical use for reliable plant operation.

化学プラントで使われる「充填塔」の設計ステップを初心者向けにわかりやすく解説。液体とガスの接触効率を高めるための考え方と構造選定の基本が学べます。

Learn the basics of tank-type reactors in chemical plants. This beginner-friendly guide covers structure, components, and key design considerations for safe and efficient operation.