The circulation of hot water or chilled water to provide heat or to cool spaces is known as a Hydronic system. It is a closed system where cold or hot water/steam runs through a heat exchanger and air is then blown over the heat exchanger to achieve the desired roo Learn More>>
In the HVAC industry, the refrigeration machine that produces chilled water is referred to as a chiller. The majority of installations operating worldwide are based on vapor compression chillers that use mechanical energy in the form of an electric motor to drive t Learn More>>
Water is a useful and cheap medium for transferring heat to the process. Boilers are fuel-burning appliances that provide a means for generating hot water or steam under pressure, which is then usable for transferring heat to the process or used as a hydronic heati Learn More>>
Absorption refrigeration is an excellent central air-conditioning method for plants that have excess heat that otherwise is discarded. Absorption chillers can deliver from 25 to 2000 tons of refrigeration. The key feature of absorption cooling equipment is... Learn More>>
Heating, ventilating, and air conditioning (HVAC) of buildings is accomplished in many ways, depending on the size, configuration, and location of the buildings and the degree of environmental control needed. Small simple facilities can be cooled with a... Learn More>>
Buildings as they are designed and used today, symbolize unrestrained consumption of energy and other natural resources with its consequent negative environmental impact. According to the Department of Energy, in 2005, commercial buildings accounted for 35 percent Learn More>>
Evaporative cooling is a method of converting hot air into a cool breeze using the process of evaporating water. There are two essential requirements for evaporative cooling: 1) a wetted surface (supplied by filter pads) and 2) A source of moving air (supplied by a Learn More>>
Most people think the air conditioning system's job is just to add "cold��� air to the space. Actually air-conditioning is a process by which air is cooled and dehumidified by mechanical means. In a broader sense, air conditioning includes both the cooling and heat Learn More>>
Heating and cooling load calculations are carried out to estimate the required capacity of heating and cooling systems, which can maintain the required conditions in the conditioned space. To estimate the required cooling or heating capacities, one has to... Learn More>>
This is a course for all of the members of the building design team.except the mechanical engineers. It will give you a basic introduction to air conditioning system design so you can better understand the technology, concepts and terminology in design of air... Learn More>>
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