Fondamenti E Ingegneria
Costruzione della pompa (Parte 1)
In 1689 the physicist Denis Papin invented the centrifugal pump and today this kind of pump is the most used around the world. The centrifugal pump is built on a simple principle: Liquid is led to the impeller hub and by means of the centrifugal force it is flung towards the periphery of the impellers. The construction is fairly inexpensive, robust and simple and its high speed makes it possible to connect the pump directly to an asynchronous motor.
Selezione delle valvole di espansione
The expansion valve regulates the amount of compressed liquid refrigerant moving into the evaporator. It removes pressure from the liquid refrigerant to allow expansion or change of state from a liquid to a gas in the evaporator. In order to properly select Expansion Valves one should pay attention to the items that we mention in this post.
Tubo d'acqua contro caldaie a tubo di fuoco
Water tube boilers and fire tube boilers are two different types of steam boilers that are commonly used in industrial and commercial applications. Both types of boilers use a system of tubes to generate steam, but they differ in the way that the tubes are arranged and the way that the hot gases from the burner pass through the tubes.
Colpo d'ariete (parte 1)
Under unfavorable circumstances, damage due to water hammer may occur in pipelines measuring more than one hundred meters and conveying only several tenths of a liter per second. But even very short, unsupported pipelines in pumping stations can be damaged by resonant vibrations if they are not properly anchored. By contrast, the phenomenon is not very common in building services systems, e.g. in heating and drinking water supply pipelines, which typically are short in length and have a small cross-section.
Formule e calcoli di refrigerazione
These formulas are commonly used in the field of refrigeration and air conditioning to calculate various performance parameters of a refrigeration system such as compression work, compression power, coefficient of performance, net refrigeration effect, capacity, compressor displacement, heat of compression, volumetric efficiency, and compression ratio. These formulas are based on the thermodynamics principles and are generally used to evaluate the performance of the refrigeration system and to optimize its design.
Il coefficiente di velocità (CV)
Cv, or coefficient of velocity, is a measure of the flow capacity of a valve. It represents the number of gallons per minute (GPM) of water at 60°F that will flow through a valve with a one-inch opening at a pressure drop of one pound per square inch (PSI). Cv can be calculated using various formulas, such as the one based on water at 60F and one that takes into account the specific gravity of the fluid. Cv is a theoretical value and it may vary depending on the actual conditions of the valve. When selecting a valve for a specific application, it is important to consider the Cv in relation to the flow rate and pressure drop requirements of the system, as well as other factors such as ease of maintenance, cost, and safety.
Linee guida per l'isolamento dei tubi
Pipe insulation is crucial for maintaining energy efficiency, temperature control, condensation control, noise reduction, and safety. ASHRAE provides specific thickness recommendations for different pipe sizes and temperature ranges in its standard 90.1. When selecting pipe insulation based on ASHRAE standards, it’s important to consider the temperature, pipe size, environmental considerations, fire resistance, and energy efficiency.
Tubazioni del refrigerante – parte 2
In questo post continueremo la nostra formazione completa su come dimensionare le tubazioni del refrigerante. Tratteremo tutti gli aspetti importanti di questo processo, inclusa la determinazione della dimensione del tubo, della caduta di pressione e di altri fattori. Discuteremo anche argomenti come il dimensionamento delle linee del refrigerante, la lunghezza equivalente delle linee del refrigerante e come determinare la lunghezza equivalente. Con questa formazione avrai la conoscenza e la sicurezza necessarie per dimensionare le tubazioni del refrigerante in modo accurato e corretto in qualsiasi situazione.
Standard E Conformità
Stima del carico HVAC: guadagno di calore interno dai componenti dell'infrastruttura (tubi, condotti, serbatoi, motori AC)
Complete guide to internal heat gain from HVAC infrastructure components including pipes, ducts, tanks, and motors using Carrier standards for accurate load estimation and system design.
Stima del carico HVAC: guadagno di calore interno da apparecchiature ed elettrodomestici
Complete guide to internal heat gain from equipment and appliances in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate system sizing and equipment integration.
Stima del carico HVAC: guadagno di calore interno dall'illuminazione
Complete guide to internal heat gain from lighting systems in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate system sizing and lighting-HVAC integration.
Stima del carico HVAC: valori U-valori di vetro e coefficiente di ombreggiatura (SC)
Complete guide to glazing U-values and shading coefficients for HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate fenestration thermal and solar analysis.
Stima del carico HVAC: valori U di costruzione per pareti, tetti e partizioni
Complete guide to construction U-values for walls, roofs, and partitions in HVAC load estimation using ASHRAE, CIBSE, and Carrier standards for accurate thermal analysis.
Processi psicrometrici HVAC: grafici, calcoli e applicazioni di trattamento dell'aria
Complete guide to psychrometric processes in HVAC design covering sensible/latent cooling, heating, humidification, dehumidification, and evaporative cooling using ASHRAE and CIBSE standards.
Stima del carico di raffreddamento e riscaldamento HVAC: condizioni esterne e dati climatici
Comprehensive guide to outdoor climate data for HVAC load estimation using ASHRAE, CIBSE, and Carrier standards. Essential weather parameters for accurate system sizing and energy analysis.
Strategia di selezione e progettazione del sistema HVAC: standard e linee guida professionali
Comprehensive guide to HVAC system selection and design strategy using ASHRAE, SMACNA, and Carrier standards. Learn professional methodologies for optimal system selection and performance optimization.
Equazioni di progettazione HVAC: calcoli di aria, ventola, pompa e sistema idronico
Comprehensive guide to essential HVAC design equations covering air, fan, pump, and hydronic system calculations. Reference standards from SMACNA, ASHRAE, and Carrier for professional engineering applications.
Strumenti E Risorse Digitali
Belimo SelectPro – Download Gratuito
Download SelectPro desktop app free. Size and select valves, actuators, and sensors with export builder, quote generator, and centralized reference documents. For HVAC engineers and contractors.
Tassi Di Espansione Termica Per Materiali Tuboli Comuni
Effortlessly calculate rates of thermal expansion for common pipe materials with our interactive calculator. Get accurate data, design insights, and actionable tables for metals and plastics—essential for HVAC engineers, designers, and consultants focused on system reliability and energy efficiency.
Calcolatore di aspettativa di vita delle apparecchiature HVAC
Abbiamo creato un calcolatore di aspettativa di vita professionale HVAC. L'applicazione fornisce calcoli completi per determinare la vita utile rimanente di vari tipi di apparecchiature HVAC.
Soluzioni Software BIM per Moderne Applicazioni HVAC
Mentre l'industria HVAC continua a evolversi nel 2025, la costruzione di informazioni sulle informazioni (BIM) è diventata uno strumento indispensabile per i professionisti che cercano di ottimizzare i processi di progettazione, installazione e manutenzione. Per gli ingegneri HVAC, gli appaltatori e i tecnici, la selezione del software BIM giusto può avere un impatto significativo sull'efficienza e sui risultati del progetto. Esploriamo le soluzioni BIM più efficaci per le applicazioni HVAC.
Download di McQuay Softwares
McQuay (As part of Daikin Industries) is one of the largest air conditioning, heating, ventilating and refrigeration companies in the HVAC/R industry. Therefore, we decided to make some softwares that this company has introduced to the industry based on their experience and knowledge available for download.
Software di selezione di Bell & Gossett
#Xylem Bell & Gosset #Selection, #Sizing & #Cad Tools e #SoftWares
File Daikin Revit
Biblioteca di risorse applicate dakin-Revit Files Rooftop Systems Handlers Air