Ingénierie et connaissances

Fondamentaux et ingénierie

Hvac Load Calculations

The accurate calculation of heating and cooling loads is essential to provide a sound bridge between fundamental building design decisions and an operating building. If loads are substantially underestimated, occupants and users will likely be hot or cold. If loads are substantially overestimated, equipment will be oversize (usually wasting money, reducing efficiency, increasing energy consumption, and often imperiling comfort).

Angles solaires - Fondamentaux du positionnement solaire

Two fundamental parameters determine how effectively your solar panels capture sunlight: orientation and tilt. These factors, when properly calculated, can significantly increase your system’s efficiency and return on investment.

Comprendre le rayonnement solaire : la puissante source d'énergie de la Terre

Solar energy is the result of electromagnetic radiation released from the sun by the thermonuclear reactions occurring inside its core. All of the energy resources on earth originate from the sun (directly or indirectly), except for nuclear, tidal, and geothermal energy.

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Normes et conformité

Conception de ventilation HVAC: ventilation de l'air d'échappement par taux et ACH

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.

Conception de ventilation HVAC: ventilation de l'air extérieur par taux et ACh

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.

Conception de ventilation HVAC: qualité de l'air intérieur et contaminants de l'air

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.

Conception de ventilation CVC : distance de séparation minimale d'entrée d'air

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.

Conception de ventilation CVC : classifications de l'air

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.

Conception de ventilation CVC : schéma général et équations

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.

Estimation de la charge HVAC: facteur d'encrassement

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.

Estimation de la charge HVAC: facteur de diversité

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.

Estimation de la charge HVAC: conditions de conception intérieure et exigences du système par type de construction

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.

Estimation de la charge HVAC: gain de chaleur et perte d'infiltration

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.

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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.

Faire des calculatrices de conduits d'air

Air-duct calculators are very useful tools to use when sizing duct

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