HVAC-ENG.COM

Log P-H Diagram Refrigeration https://lnkd.in/dRKFFFKm The thermodynamic processes in the refrigeration cycle are complex. Calculation using formulae and tables requires a considerable amount of effort due to the three different states of the refrigerant from liquid, boiling and gaseous. Therefore, for reasons of simplify cation, the log p-h diagram was introduced.

Carrier HAP Training Tutorials https://lnkd.in/d5dWSqmU Series of training videos and articles are designed to help users get-started and with fundamental tasks such as installation, setting preferences, utilizing the HAP building wizards and more

Refrigerant Property Diagrams https://lnkd.in/df4-sb-r The idea of using a refrigerant diagram is that it makes it possible to represent the processes in the refrigeration system in such a way that analysis and evaluation of the process becomes easy.

Direct Return Piping Systems https://lnkd.in/dfixqkt5 Closed-loop systems can be further classified as direct return or reverse return. The direct return system allows piping to be run in the most direct path to optimize piping costs. The reverse return system is piped so that the length of the water circuit through the supply and return piping to each fan coil or air handler is essentially the same.

Types of Water Distribution Systems https://lnkd.in/d-N88EdZ There are four main types of water distribution systems. They are defined by the number of pipes used in the system – 1-pipe, 2-pipe, 3-pipe, and 4-pipe. While this article will discuss primarily chilled water and condenser water system piping system design, it is important to understand the evolution from 1-pipe into the other three systems, all of which are used for heating as well as cooling.

Types of Piping Systems https://lnkd.in/erMR9ZRQ Understanding of the three basic types of piping systems: closed-loop, open-loop, and once-thru. Closed-Loop (Evaporator), Open-Loop (Condenser), Once-Thru.

Sheet Metal Thickness Calculator https://lnkd.in/dPxYPpP5 Gauge (or gage) sizes are numbers that indicate the thickness of a piece of sheet metal, with a higher number referring to a thinner sheet. The Calculator below can be used to determine the equivalent sheet thickness, in inches or millimeters, for a gauge number from the selected gauge size standard.

duct size calculation tool https://lnkd.in/dUXbHmKS This duct calculator allows three different calculations to be carried out quickly and with ease. These calculations are divided in four areas

Commercial Chiller Heat Rejection https://lnkd.in/dibN_XR8 A heat rejection system can take several forms. The most efficient is the evaporative cooling tower which uses the cooling effect of evaporating water to boost the cooling provided by fresh air.

Fuel Conversion Factors for Heating https://lnkd.in/d-fvAQnX Fuel Conversion Factors for Electric Baseboard to Hydronic Baseboard, Electric Furnace to Hydronic Baseboard, Ceiling Cable to Hydronic Baseboard, Heat Pump to Hydronic Baseboard, Electric Baseboard to Warm Air Furnace, Electric Furnace to Fuel-Fired Furnace, Ceiling Cable to Warm Air Furnace, Heat Pump to Warm Air Furnace, Warm Air Systems to Hydronic Baseboard System.