エンジニアリングと知識

基礎とエンジニアリング

パイプ圧力降下計算:必須式とガイドライン

Explore the essentials of pipe pressure drop calculations, including key factors affecting pressure drop, commonly used equations, and practical tips for optimizing fluid transportation systems. Learn about software and tools that can assist in streamlining your calculations and enhance the efficiency of your projects. In this blog post, we discussed the importance of understanding pipe pressure drop calculations and their relevance across various industries. We introduced key factors affecting pressure drop, such as pipe diameter, length, flow rate, fluid properties, and pipe roughness. We also examined several equations for calculating pressure drop, including the Darcy-Weisbach, Hazen-Williams, and Colebrook-White equations, discussing their applicability and limitations.

データセンター向けの HVAC システムの最適化: 重要な考慮事項

Efficient and reliable HVAC systems are crucial for data center operations. This article covers the key aspects of HVAC system design for data centers, including load calculations, air distribution strategies, cooling system options, humidity control, and integration with building automation systems. By addressing these considerations, data center operators can ensure optimal performance and minimize the risk of equipment failure or downtime.

HVAC 設計のベスト プラクティス

In this blog post, we’ll discuss some of the key principles and best practices in HVAC design that every engineer should know. HVAC design is an essential aspect of creating comfortable and efficient indoor environments. As an HVAC-R engineer, understanding the principles of HVAC design is crucial for designing effective, reliable, and sustainable heating, ventilation, and air conditioning systems.

Sensible, Latent, and Total Heat

Sensible heat, latent heat, and total heat are important concepts in HVAC. Sensible heat is the heat that is transferred to or from a substance without causing a change in phase. Latent heat is the heat that is transferred to or from a substance during a phase change, such as from a liquid to a gas or from a gas to a solid. Total heat is the sum of sensible heat and latent heat.

R-Value and U-Value in HVAC

R-value and U-value are two important concepts in HVAC. R-value is a measure of a material’s resistance to heat flow, while U-value is a measure of its ability to transfer heat. The higher the R-value, the better the insulation, while the lower the U-value, the better the insulation.

HVAC における水流量の計算

Water flow rate is an important parameter in the design and operation of HVAC systems. It is important to calculate the correct water flow rate to ensure that the system operates efficiently and effectively.

空冷チラーと水冷チラー: 選択基準

Compare air-cooled vs. water-cooled chillers. Understand selection criteria to make the best choice for your cooling needs.

地区の暖房の理解:持続可能な都市アプリケーションのための効率的なエネルギー分布システム - HVAC-Rの専門家の技術的概要、設置、メンテナンス、および標準

HVACシステムにおける地区暖房の利点を発見する:効率的なエネルギー分布、コストの削減、および持続可能な都市開発のための再生可能源との統合。

冷却/加熱システムの設計手順

Design Procedures for Cooling/Heating Systems: A Comprehensive 9-Step Approach

冷却専用システムの設計手順: 8 ステップの方法論

Designing efficient cooling-only HVAC systems requires a structured approach to ensure optimal performance and appropriate equipment sizing. The following 8-step procedure provides a comprehensive framework for designing these systems, where peak cooling loads determine the airflow requirements for system components.


標準とコンプライアンス

HVAC ダクト設計: ダクト継手の摩擦損失

Complete guide to HVAC duct fittings friction loss using Carrier standards covering loss coefficients, pressure drop calculations, and system optimization for efficient air distribution design.

HVACダクト設計:ダンパー、減衰器、コイル摩擦損失

Complete guide to HVAC dampers, attenuators, and coils friction loss using SMACNA standards covering pressure drop calculations, component selection, and system optimization for efficient air distribution design.

HVACダクト設計:ダクトラウンドから長方形の同等物

Complete guide to HVAC round-to-rectangular duct equivalency using ASHRAE standards covering conversion formulas, performance considerations, and system optimization for space-constrained installations.

HVACダクト設計:ダクト摩擦損失

Complete guide to HVAC duct friction loss calculations using ASHRAE standards covering friction charts, pressure drop analysis, and system optimization for efficient air distribution design.

HVACダクト設計:ダクト圧力分類

Complete guide to HVAC duct pressure classification using SMACNA standards covering pressure class selection, construction requirements, and testing protocols for safe and efficient ductwork systems.

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

Complete guide to commercial kitchen duct sizing using ASHRAE and NFPA standards covering exhaust hood design, grease management, fire safety, and make-up air systems for food service operations.

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

Complete guide to HVAC duct sizing using velocity and noise criteria with ASHRAE and CIBSE standards covering acoustic design, velocity limits, and noise control for sensitive applications.

HVACダクト設計:等しい摩擦法によるダクトサイジング

Complete guide to HVAC duct sizing using the equal friction method with SMACNA and ASHRAE standards covering calculation procedures, friction rate selection, and system optimization for effective air distribution design.

HVACダクト設計:ダクトサイジングSmacnaの推奨

Complete guide to HVAC duct sizing using SMACNA recommendations covering equal friction, velocity, and static regain methods with design calculations and system optimization for effective air distribution.


デジタルツールとリソース

HVAC-R Load Calculator: Your Essential Tool for Accurate System Sizing

Our new web-based calculator combines sophisticated engineering principles with an intuitive interface, making accurate load calculations accessible to everyone from students to seasoned professionals. Unlike basic square-footage estimators, our tool considers the multitude of factors that influence heating and cooling requirements.

Interactive Psychrometric Chart

The aim of this web app is to create an interactive psychrometric chart on which you can project a range of comfort metrics as well as mapping weather data or room air conditions calculated using EnergyPlus. You can add or remove lines for a range of different metrics or highlight them individually to assist with dynamic explanations or presentations.

HVAC-R Financing Made Simple: Introducing Our Smart Equipment Calculator

we’ve developed a comprehensive HVAC-R Equipment Financing Calculator that goes beyond basic loan calculations to include industry-specific considerations like energy savings, equipment efficiency, and available tax incentives

Download Weather Design Conditions (ASHRAE)

Discover ASHRAE Handbook weather stations with our comprehensive search tool. Optimize HVAC and equipment design, sizing, distribution, and installation for residential, commercial, and industrial applications. Enhance your energy-related projects across various sectors, including agriculture, by leveraging accurate climatic data.