Engineering & Knowledge - HVAC-R & Solar Engineering Resource

Design Procedures for Heating-Only Systems: An 8-Step Methodology

Master the 8-step methodology for designing efficient heating-only systems to optimize HVAC performance and engineering accuracy.

HVAC システムにおけるスペースおよびゾーンのエアフローサイズの計算

Following our previous discussion on the systematic 9-step procedure for designing cooling and heating systems, it’s essential to understand the technical aspects of airflow sizing

冷却のみのシステムの設計手順：詳細な気流計算方法論

Table of Contents Technical Deep Dive: Airflow Calculation Methods for Cooling-Only Systems Method 1: Peak Zone Load with Coincident Space Loads Method 2: Peak Zone

暖房のみのシステムの設計手順：気流の計算方法と技術的な考慮事項

Advanced Airflow Calculation Methods for Heating-Only Systems In our previous article, we explored the 8-step methodology for designing heating-only HVAC systems. Today, we’ll delve deeper

Refrigeration Expansion Valve Sizing and Selection Process

Proper expansion valve selection is critical for refrigeration system efficiency and reliability. This guide outlines the systematic approach to sizing and selecting expansion valves based

冷凍蒸発器のサイズと選択

The evaporator is a critical component in any refrigeration system, serving as the heart of the cooling process. Proper sizing and selection of evaporators directly

Lighting Rules Of Thumb (HVAC)

Master the essential lighting rules of thumb in HVAC engineering to accurately estimate heat gain and optimize your building’s cooling load calculations.

侵入の経験則

Learn the essential rules of thumb for calculating building infiltration to improve the accuracy of your HVAC load calculations and energy models.

冷房負荷の計算手順

Master the step-by-step cooling load calculation procedure to accurately size HVAC systems and enhance building energy efficiency.

The Geometry Behind Solar Energy Calculations

Explore the mathematical principles and geometric models used to accurately calculate and optimize solar energy absorption.

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Duct fittings friction loss represents critical HVAC design calculations that determine pressure drops through elbows, tees, transitions, and other directional changes within ductwork systems. Professional engineers utilize

HVACダクト設計：ダンパー、減衰器、コイル摩擦損失

Dampers, attenuators, and coils friction loss represents specialized HVAC design calculations that determine pressure drops through control devices, sound attenuation equipment, and heat transfer coils within ductwork

HVACダクト設計：ダクトラウンドから長方形の同等物

Round to rectangular duct equivalency represents a fundamental HVAC design calculation that enables engineers to convert between circular and rectangular ductwork while maintaining equivalent airflow characteristics and

HVACダクト設計：ダクト摩擦損失

Duct friction loss represents a fundamental HVAC design calculation that determines pressure drop through straight ductwork sections due to air friction against duct surfaces. Professional engineers utilize

HVACダクト設計：ダクト圧力分類

Duct pressure classification represents a fundamental HVAC design principle that establishes construction standards based on the operating static pressure within ductwork systems. Professional engineers utilize SMACNA pressure

HVACダクト設計 - 汚染物質抽出ダクトのサイジング（煙|グリース|ガス|乾燥＆湿ったほこり）

ASHRAE’s Pocket Guide lists minimum conveying velocities that keep contaminants airborne while they travel through exhaust ductwork. Table 2.9 (2013 edition, Ch. 02, pp. 60

HVACダクト設計：商業用キッチンダクトサイジング

Commercial kitchen duct sizing represents a specialized HVAC design discipline that addresses the unique requirements of grease-laden vapor removal, high-temperature exhaust, fire safety, and code compliance in

HVACダクト設計：速度とノイズ基準（NC）によるダクトサイジング

Duct sizing by velocity and noise criteria (NC) represents a fundamental HVAC design methodology that determines appropriate duct dimensions based on maximum acceptable air velocities and noise

HVACダクト設計：等しい摩擦法によるダクトサイジング

The Equal Friction Method represents a fundamental HVAC duct sizing approach that maintains constant pressure loss per unit length throughout the main duct runs, providing a systematic

HVACダクト設計：ダクトサイジングSmacnaの推奨

SMACNA (Sheet Metal and Air Conditioning Contractors’ National Association) duct sizing recommendations represent fundamental HVAC design methodologies for calculating appropriate duct dimensions to deliver required airflow while

デジタルツールとリソース

Belimo SelectPro – 無料ダウンロード

SelectPro is a quick and simple tool for accurately sizing and selecting valves, actuators, sensors and replacement solutions for HVAC systems. Table of Contents Key

一般的なパイプ材料の熱膨張速度

In modern HVAC, energy, and process industries, pipe material selection is not just about cost or standard practices—it’s about anticipating expansion and contraction risks driven by a dynamic climate and extreme operational temperatures. Understanding the rates of thermal expansion for common pipe

エンジニアリングと知識

基礎とエンジニアリング