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 換気設計: レートおよび ACH による排気換気
Complete guide to HVAC exhaust air ventilation design using ASHRAE, CIBSE, and Carrier standards covering rate calculations, ACH requirements, and specialized applications for effective contaminant removal and energy efficiency.
HVAC 換気設計: レートおよび ACH による外気換気
Complete guide to HVAC outdoor air ventilation design using ASHRAE, CIBSE, and Carrier standards covering rate calculations, ACH requirements, and building-specific applications for optimal indoor air quality.
HVAC 換気設計: 室内空気の質と空気汚染物質
Complete guide to HVAC indoor air quality and air contaminant management using ASHRAE, CIBSE standards covering contaminant identification, control strategies, and advanced treatment technologies for healthy indoor environments.
HVAC 換気設計: 空気取り入れ口の最小分離距離
Complete guide to HVAC air intake minimum separation distances using ASHRAE 62.1 standards covering contamination source requirements, measurement methods, and compliance strategies for optimal outdoor air quality protection.
HVAC 換気設計: 空気の分類
Complete guide to HVAC air classifications using ASHRAE 62.1 and CIBSE standards covering air quality categories, contamination levels, filtration requirements, and ventilation strategies for optimal indoor environmental control.
HVAC 換気設計: 一般的な回路図と方程式
Complete guide to HVAC ventilation design using ASHRAE 62.1 standards covering calculation procedures, system schematics, and modern ventilation strategies for optimal indoor air quality and energy efficiency.
HVAC 負荷推定: ファウリング係数
Complete guide to fouling factors in HVAC load estimation using Carrier water conditioning standards for accurate heat transfer equipment sizing and comprehensive water quality management strategies.
HVAC 負荷推定: ダイバーシティ係数
Complete guide to diversity factors in HVAC load estimation using CIBSE and Carrier standards for accurate system sizing that reflects realistic building operation patterns and prevents equipment oversizing.
HVAC 負荷の推定: 建物タイプ別の屋内設計条件とシステム要件
Complete guide to indoor design conditions for HVAC load estimation covering temperature, humidity, air quality, and specialized requirements for residential, commercial, industrial, healthcare, and specialty building applications using ASHRAE, CIBSE, and Carrier standards.
HVAC 負荷の推定: 浸透熱の利得と損失
Complete guide to infiltration in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate assessment of uncontrolled air exchange and its impact on heating and cooling loads.
デジタルツールとリソース
Psychrometric Programming Functions
ibrary of psychrometric functions to calculate thermodynamic properties of air for Python, C, C#, Fortran, JavaScript and VBA/Excel
キャリアハップソフトウェア
Carrier’s Hourly Analysis Program is two powerful tools in one package – versatile features for designing HVAC systems for commercial buildings AND powerful energy analysis capabilities for comparing energy consumption and operating costs of design alternatives.
トレース 700 ソフトウェア
TRACE 700 を使用すると、建物の設計者は、エネルギー利用とライフサイクル コストに基づいて建物、システム、設備の設計を最適化できます。 TRACE 700 用の Trane ソフトウェアを使用すると、ユーザーが広範囲の変数を操作して特定の建物のプロファイルを作成できるため、事実上あらゆるチラー プラント構成のエネルギーと経済効果の分析が容易になります。
EVAP-COND 5.0 をダウンロード: HVAC エンジニア向けの究極の熱交換器シミュレーション ツール
新しい熱交換器を設計する場合でも、既存のシステムを最適化する場合でも、代替冷媒を研究する場合でも、EVAP-COND は情報に基づいた意思決定を行うために必要な詳細な分析機能を提供します。すべての HVAC エンジニアと研究者がこの強力なシミュレーション ツールを検討し、それが熱交換器設計へのアプローチをどのように変えることができるかを直接体験することをお勧めします。
Heat Transfer Textbook Download
The book is meant for juniors, seniors, and first-year graduate students. And to those who choose to learn the subject on their own, and to practicing engineers who use it as a reference. Whether one studies alone or with a class, learning means posing, then answering, one’s own questions.