基礎とエンジニアリング
Design Procedures for Heating-Only Systems: An 8-Step Methodology
Designing effective heating-only HVAC systems requires a methodical approach that ensures adequate capacity while avoiding oversizing. The following 8-step procedure provides a comprehensive framework for designing these systems, focusing on peak heating loads to determine appropriate equipment sizing.
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
this technical supplement provides detailed insights into the critical airflow calculation methods essential for Step 3: Calculate Required Zone and Space Supply Airflow Rates. Understanding these calculation approaches enables engineers to select the most appropriate sizing method for specific project requirements.
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
Proper airflow calculations are essential for system performance, ensuring thermal comfort while optimizing energy efficiency. Understanding the mathematical foundation behind these calculations enables engineers to make informed decisions when selecting the most appropriate sizing method for specific project requirements.
Refrigeration Expansion Valve Sizing and Selection Process
冷凍膨張バルブの適切な選択とサイジングは、複数のパラメーターを慎重に検討する必要がある体系的なプロセスです。適切な拡張バルブを選択するには、システムの要件を理解し、正しい容量の計算、およびサブ冷却や圧力低下などの動作条件の会計が含まれます。
冷凍蒸発器のサイズと選択
蒸発器のサイズと選択は、冷凍システム設計における重要な要素を表します。このプロセスには、冷却負荷だけでなく、システム統合、冷媒特性、アプリケーション要件、エネルギー効率の目標も考慮した系統的なアプローチが必要です。
Lighting Rules Of Thumb (HVAC)
Using lighting rules of thumb for final design of HVAC and lighting.
侵入の経験則
The infiltration rate is the volumetric flow rate of outside air into a building, typically in cubic feet per minute (CFM) or liters per second (LPS). The air exchange rate, (I), is the number of interior volume air changes that occur per hour, and has units of 1/h.
The Geometry Behind Solar Energy Calculations
Solar Geometric Angles are all critical to the calculation of solar energy on any given surface at some orientation. To calculate the energy balance across any time scale with respect to the incident solar radiation, you must know the geometric relationships that define the spherical realities of planetary motion relative to the sun for specific tilted surfaces on the planet.
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：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
Cooltools ソフトウェアのダウンロード
- サイクル分析（プロセス設計） - 1つの段階の直接拡張サイクルと1つのステージの浸水サイクルの比較。 - システムサイジング - 一般的な基準からのコンポーネントサイズの計算。 - システムシミュレーション - 既知のコンポーネントを持つシステムの動作条件の計算。コンポーネントの計算 - 計算 - コンポーネントの効率と出口条件。 - 動作の評価 - システム効率の評価。 - プロセス調査 - 湿った空気計算など。
冷媒のpH図（パート2）
This article is a continuation of our older article, which was well received by users, so we decided to update the P-H Diagram list and provide you with a more complete list of the world’s commercial refrigerants. You can easily access the high quality refrigerant chart by clicking on the refrigerants listed in the table.
キャリア Plv プロのダウンロード
Carrier’s PLV Pro is a software tool that empowers consulting engineers to make objective and informed decisions about their chiller plant design that go beyond Full Load and IPLV metrics. Results are provided in a professional report or .csv format for further analysis. The tool is for professionals who need a quick and free-of-charge alternative to detailed energy modeling analyses.
クールセレクターのダウンロード
Coolselector®2 (from Danfoss company) helps to optimize energy consumption and increase efficiency in any HVACR system. Run unbiased calculations based on a set of operating conditions — such as cooling capacity, refrigerant, evaporation, and condensation temperature — and then select the best components for your design.
エアコン凝縮液計算機
空調凝縮液は、空調システムでの冷却プロセスの結果として生成される水です。エアコンシステムが建物内の空気を冷却すると、空気から水分が除去され、エアコンシステムの冷たいコイルに凝縮します。この凝縮は収集され、凝縮液ドレンパイプから排出されます。凝縮液の排水に採取される水は、通常、エアコン凝縮液と呼ばれます。
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.
マッキーダクトサイザー ダウンロード
The McQuay Duct Sizer is a specialized software tool designed for HVAC professionals to assist in the accurate and efficient sizing of air ducts. This tool is essential for ensuring optimal performance and energy efficiency in HVAC systems. The McQuay Duct Sizer is available for free download.
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
HVAC-CX：The Essential Building HVAC Systems Commissioning Toolをダウンロードします
As buildings continue to evolve toward higher efficiency and more sophisticated control strategies, tools like HVAC-Cx become increasingly valuable. The software’s ability to systematically detect faults, prioritize issues, and assist with active commissioning represents a significant advancement in building operations technology.