Building Information Modeling services is one of the most important services that is undertaken by the stakeholders of BIM projects. Apart, from knowing the basic details,it is also necessary that the stakeholders of the project are aware about HVAC Building Information Modeling Services and HVAC BIM Design Services. In simple terms to describe, HVAC stands for Heating, ventilation, and air-conditioning.
Apart, from getting accurate shop drawings for the design that includes its MEP details, steel details, fire-fighting details, and a lot more, the team also shares the details of HVAC design. With the help of these designs, it becomes easier for the members to proceed further in the construction part of the project that has HVAC services in it.
Now, one of the fundamental skills for HVAC designers and the consultants is to have proper “Heat Load Calculation”. Moreover, this is a fact that during the summer time there is a highest demand and space required for cooling and this is indeed one of the highest expenses in HVAC BIM services. However, to finalize the size or to properly size a space that is required for the cooling system, it is very much necessary to know the amount of heat that will be removed, and this is indeed done with the adherence and purpose of heat load calculation.
In the building the heat can come from any of the sources like internal as well as external. The work of undertaking a heat calculation is considered from all the sources and it also determines the total effect as well.
Main Heat Sources - An Overview to it
It is matter of fact that the generation of heat can be done in many ways. It can either be directly or indirectly. Today this article along with the process of heat load calculation will also emphasize on its main heat sources that are an integral part of HVAC BIM services.
· Solar Heat Gain: There are numerous ways by which heat from the sun can reach the interior spaces. But these are the three different as well as most common ways out. They are conduction, convection, and radiation.
o The heat that occurs across the walls and roofs throughout is considered in conduction way. It is being exposed to a temperature which has a difference between the interior part of the building and exterior part of the building and that can be warmer outside more due to the environment control.
o Convection here refers to the transfer of the heat that occurs with the bulk movement of outdoor air that is too hot along with the indoor air movement that is between different surfaces and temperatures.
o The heat that transfers directly through any type of tran surfaces or via windows of the buildings is termed to be in a radiation heat.
It is that both the types of heat that is radiation and convection are a part of as well as interconnected with the conduction heat which is at the surfaces of walls and roofs. For multiple or numbers of types of buildings, the sun is the single largest source of heat.
Moving further, the solar heat is gained for some specific room and this entirely depends on its directions as well as alignment. Also, here the consideration of the sun's position also needs to be kept in mind because it is natural that the sun changes its position in the sky throughout the day.
Based on the facing side of the sun from east to west, and north to south the exposure of solar heat is monitored and exposed accordingly. Also, it totally depends on the occurence of solar heat gain, through which the effect of the heat can be felt on an immediate basis or over a period of time.
· Heat from Living Personality: One of the major source of heat in building interiors is the number of occupants staying there. Also, this is then carried on with the regular activities too that they are performing. To make it simple, we can say considering the human consuming hundreds of calories from the start of the day to its end, and certain part of it is being released in the form of heat metabolic processes. It is that, heat that is being released by the humans is at a higher pace and this is because of the intense physical activity they presume through perspiration.
· Exhaust Air Heater: The warmer the air outside the space which is conditioned the more the temperature for the same would affect the details. It is also called atmospheric air or outside air. On an average the outdoor air tends to increase to a certain extent and it is because of the average room temperature that is entering the indoor spaces.
Although it is not that the air transmission is done only via the outdoor air, the exchange of the air is a normal process that can be when doors and windows are open and the outdoor air then can easily enter the conditioned space via doors, windows, roofs, or other building envelope elements. Moreover, the heat that is held by the outdoor air enters through the sun rays, but the same can be originated even via vehicles or from other sources as well.
· Heat from Appliances: It is a fact that the indoor spaces are having the fittings of electrical and electronic appliances that are the core necessity which each one of us would be having in our house or properties. These are the appliances that consume more amount of electricity and because of which a certain amount of heat is being released in the conditioned space. Thus, the best option available here is to use appliances that uses less energy and by which the heating effect is minimized.
Procedure of Calculating Heat Load Calculation
For having accurate heat calculation, it is necessary to conduct a proper and thorough survey of each room in the building and based on that identifying the heat sources that are being present in it. Post surveying the next step that is undertaken is the calculation of heat load. Here the team of HVAC designers will share their opinion for the types of air-conditioning systems that are best suitable for the application and also are based on the required capacity.
This method of work helps the stakeholders or the property owners to avoid the installation of oversized systems that causes higher running costs which is over and above the budget. Here also if the undersized systems are installed it will deliver insufficient cooling.
It is the team of qualified HVAC professionals who have specialized knowledge and experience in providing the accurate Heat load calculation for the desired project. The need of having professionals is because the entire work is time- consuming and a complex task. Moreover the work of having heat calculation is important to achieve optimal building performance, and this is only possible by providing the details to select the right air-conditioning system that will have its proper types as well as its capacity for the application too. It is an integral part when it is related to the construction of big projects like malls, auditorium, and other such big plants.
The actual work of heat calculation only starts when the team of HVAC professionals have all the required information that is related to the project. For the work of heat calculation there are two methods that are being carried out (a) Manual Process and (b) By using software.
The work of heat calculation is taken into consideration for all types of building, and with this process it also has the determination of the overall load of the electricity that the building can carry along with it. The performance of the HVAC increases as and when required because based on these technical designs and drawings the HVAC designer and consultants can assist in giving their feedback on the technical recommendations so as to achieve the deadlines of the projects.
Closing:
Building Information Modelling Services is the leading and the prominent company that serves its clients globally with regards to all types of CAD service, BIM Services, HVAC services, and a lot more. If you are planning to outsource your project, that requires assistance you are just a call or email away from us. Contact us today !!!
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