基礎とエンジニアリング
パイプ断熱ガイドライン
Learn the essential standards and best practices for proper pipe insulation to maximize thermal efficiency and prevent condensation in engineering systems.
冷媒配管 – パート 2
Learn the critical steps and best practices for installing and maintaining refrigerant piping systems to ensure optimal HVAC performance and efficiency.
パイプ圧力降下計算：必須式とガイドライン
Learn how to accurately calculate pipe pressure drops using essential equations and guidelines to ensure optimal fluid flow and system efficiency.
Sensible, Latent, and Total Heat
Master the core concepts of sensible, latent, and total heat to accurately analyze and design efficient HVAC systems.
HVAC における水流量の計算
Learn how to accurately perform water flow rate calculations to ensure optimal efficiency and performance in HVAC systems.
冷凍膨張弁のサイズ設定と選択プロセス
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
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.
標準とコンプライアンス
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デジタルツールとリソース
Ductulator and Pressure Loss (friction) calculator
Streamline your HVAC design process with our comprehensive digital Ductulator and Pressure Loss Calculator. This all-in-one tool allows you to instantly convert duct shapes, determine optimal sizing based on friction or velocity constraints, and accurately calculate total pressure loss and airflow rates for complex ductwork systems.
Air mixing calculator
Accurately determine the final thermodynamic state of combined airstreams. Input flow rates and air properties to instantly calculate mixed air conditions, streamlining AHU fresh-air and return-air mixing design.
Psychrometric state calculator
Instantly determine the complete psychrometric state of moist air using just two inputs. Enter dry-bulb temperature alongside any single humidity parameter to automatically calculate dew point, wet-bulb, relative humidity, enthalpy, specific volume, and density for precise HVAC design and analysis.
Expansion Tank Sizing Calculator
Size bladder, diaphragm, or plain-steel expansion tanks for closed hydronic systems in seconds. This calculator applies thermal-expansion and pressure-ratio principles from Steven T. Taylor’s ASHRAE-referenced sizing method and the ASME Boiler and Pressure Vessel Code, Section VI, to compute the minimum required tank acceptance volume for hot water, chilled water, and mixed-temperature systems. Supports US and SI units, all four major tank styles, an optional piping-expansion credit, and a built-in ASME/UMC/IMC cross-check for 170–230°F systems — with clear pass/warning/invalid status and next-step guidance for tank selection and precharge verification.
Critical Radius of Insulation Calculator
Determines the critical radius (and critical thickness) of insulation for a cylinder or sphere — the outer radius at which heat loss is maximum — and compares heat‑loss rates before and after insulation.
HVAC機器寿命計算機
プロのHVAC機器の寿命計算機を作成しました。このアプリケーションは、さまざまなHVAC機器タイプの残りの耐用年数を決定するための包括的な計算を提供します。
最新のHVACアプリケーション向けのBIMソフトウェアソリューション
As the HVAC industry continues to evolve in 2025, Building Information Modeling (BIM) has become an indispensable tool for professionals seeking to optimize design, installation,
McQuayソフトウェアのダウンロード
Explore a comprehensive guide on locating and downloading McQuay software tools to streamline your HVAC system design and selection processes.