Fondamentaux Et Ingénierie
Procédures de conception pour les systèmes de chauffage uniquement : une méthodologie en 8 étapes
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.
Calculs de dimensionnement du débit d'air d'espace et de zone dans les systèmes CVC
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
Design Procedures for Cooling-Only Systems: Detailed Airflow Calculation Methodology
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.
Procédures de conception pour les systèmes de chauffage uniquement: méthodes de calcul du flux d'air et considérations techniques
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.
Processus de dimensionnement et de sélection des soupapes d'extension de réfrigération
The proper selection and sizing of refrigeration expansion valves is a systematic process requiring careful consideration of multiple parameters. Selecting the right expansion valve involves understanding system requirements, calculating correct capacities, and accounting for operating conditions such as subcooling and pressure drop.
Dimensionnement et sélection de l'évaporateur de réfrigération
Le dimensionnement et la sélection des évaporateurs représentent des éléments critiques dans la conception du système de réfrigération. Le processus nécessite une approche méthodique qui considère non seulement la charge de refroidissement mais également l'intégration du système, les propriétés de réfrigérant, les exigences d'application et les objectifs d'efficacité énergétique.
Lighting Rules Of Thumb (HVAC)
Using lighting rules of thumb for final design of HVAC and lighting.
Infiltration Rules Of Thumb
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.
La géométrie derrière les calculs d'énergie solaire
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.
Normes Et Conformité
Conception du conduit HVAC: Perte de friction des raccords de conduit
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.
Conception du conduit HVAC: amortisseurs, atténuateurs et pertes de frottement des bobines
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.
Conception du conduit HVAC: conduit à l'équivalent rectangulaire
Complete guide to HVAC round-to-rectangular duct equivalency using ASHRAE standards covering conversion formulas, performance considerations, and system optimization for space-constrained installations.
Conception du conduit HVAC: perte de frottement du conduit
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.
Conception du conduit HVAC: classification de la pression des conduits
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.
Conception du conduit CVC: dimensionnement commercial de conduits de cuisine
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.
Conception du conduit CVC: dimensionnement des conduits par des critères de vitesse et de bruit (NC)
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.
Conception du conduit HVAC: dimensionnement des conduits par méthode de frottement égale
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.
Conception du conduit HVAC: recommandations de smacna de dimensionnement des conduits
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.
Outils Et Ressources Numériques
Téléchargement du logiciel Cooltools
- Analyse du cycle (conception du processus) - Comparaison du cycle d'expansion directe d'une étape et du cycle inondé d'une étape. - Dimensionnement du système - Calcul des tailles de composants à partir des critères généraux. - Simulation du système - Calcul des conditions de fonctionnement dans un système avec des composants connus. Calculs des composants - Calcul des - Efficacité des composants et conditions de sortie. - Évaluation du fonctionnement - Évaluation de l'efficacité du système. - Investigation du processus - Par exemple, calculs de l'air humide.
Diagramme de pH réfrigérant (partie 2)
Cet article est une continuation de notre ancien article, qui a été bien reçu par les utilisateurs, nous avons donc décidé de mettre à jour la liste des diagrammes de pH et de vous fournir une liste plus complète des réfrigérants commerciaux du monde. Vous pouvez facilement accéder au tableau de réfrigérant de haute qualité en cliquant sur les réfrigérants répertoriés dans le tableau.
Télécharger Carrier Plv Pro
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.
Téléchargement
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.
Calculatrice de condensat de climatisation
Air conditioning condensate is the water that is produced as a result of the cooling process in an air conditioning system. When the air conditioning system cools the air in a building, it removes moisture from the air, which condenses on the cool coils of the air conditioning system. This condensation is collected and drained away through a condensate drain pipe. The water that is collected in the condensate drain is typically referred to as air conditioning condensate.
Pipe Pressure Drop Calculations: Essential Equations and Guidelines
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.
téléchargement mcQuay duct Sizer
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.
Calculs de dimensionnement du débit d'air d'espace et de zone dans les systèmes CVC
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
Télécharger HVAC-CX: l'outil de mise en service des systèmes HVAC de construction essentiel
Alors que les bâtiments continuent d'évoluer vers une efficacité plus élevée et des stratégies de contrôle plus sophistiquées, des outils comme HVAC-CX deviennent de plus en plus précieux. La capacité du logiciel à détecter systématiquement les défauts, à hiérarchiser les problèmes et à aider à la mise en service active représente une progression importante dans la technologie des opérations de construction.