.png)
Static Regain Method of Duct Design
Duct construction often relies on static regain methods to ensure that wet air flows from a duct during a leak, and that is also called "mechanical drapes".
How to design HVAC ducts using Static Regain Method?
The aim of this method is to maintain a constant temperature in the air passage.
• Most of the problems in designing HVAC ducts, may be fixed by just using these three methods.
• The one of them which could help in fixing the problems with the design of ducts, could be the static regain.
How to design HVAC ducts using Static Regain Method?
This is an absolute method, which could be adopted to design and maintain HVAC ducts in any HVAC system.
One of the most useful method to design HVAC ductwork is Static Regain Method. This method permits you to determine the size of your ductwork while ensuring that they are properly secured to the ceiling.
The static regain system is an HVAC ducting system with re-sealing capability to resist of water intrusion into HVAC ducts. With a significant improvement of durability, lifespan, and ease of installation, as well as the cost of materials and labor, the static reclaim system significantly reduces the cost of HVAC ducts in comparison to ordinary ducts. It has almost zero voids, which makes it ideal for HVAC ducts. Moreover, the quality of building structures deteriorate over time. To avoid issues such as moisture infiltration, mold growth, and rusting, the technique is widely adopted.
Common Uses of Static Reclaim System
The re-sealable ducts serve various purposes. The designers can install adhesive strips or other adhesives on the re-sealable ducts. The adhesive sticks to the re-sealable ducts and keeps them in place. The adhesives can be removable so that they can be removed to seal, seal, and seal again with adhesive strips. The adhesives on the re-sealable ducts is designed to withstand heavy weight, and the color matches the other elements of the HVAC ducts. The ducts are designed for extremely humid climates and require continuous cleaning.
The static regain technique for duct measuring might be utilized to configuration supply air frameworks of any speed or strain. It regularly isn't utilized for return air frameworks where the wind stream is toward the central air unit fan. This strategy is more perplexing to use than the equivalent rubbing
strategy, however it is a hypothetically strong technique that meets the prerequisites of keeping up with uniform static strain at all branches and outlets. Channel speeds
are efficiently diminished, permitting an enormous piece of the speed strain to change over completely to static tension
which balances the rubbing misfortune in the succeeding part of channel. This static recapture, which is accepted at 75% for normal pipe frameworks, could be as
high as 90% under ideal circumstances.
Another benefit is that the channel framework will remain in balance in light of the fact that the misfortunes and gains are relative to a component of the speeds. Along these lines, it is a brilliant strategy for planning variable air volume frameworks.
A drawback of the static recapture strategy is the curiously large channels that can happen at the finishes of long branches, particularly assuming one conduit run is surprisingly lengthy.
Frequently, the resultant exceptionally low speeds require the establishment of warm protection on that part of the conduit framework to forestall irrational pipe heat gains or on the other hand misfortunes.
Static Regain method in HVAC Duct Design
HVAC duct design is of great importance because it regulates air movement inside the HVAC system and opens up the entire duct system for airflow. This method of duct design is used to store and release air within ducts within the HVAC system and maximize the airflow in the duct system. In order to achieve this design, the air duct is divided into sections. The static gain method is one of the popular HVAC duct design methods and can be used to optimize air movement within a duct system to maximize airflow and maximize the energy efficiency.
Static Gain method is often recommended to redesign the HVAC duct work because it is simple and cost effective as compared to other HVAC duct design methods. The static gain method of duct design is simple and easy to understand and is used in duct work installation, replacement or repair.
The static gain method of duct design is popular because it requires few parts and is easy to design and install as compared to other HVAC duct design methods. It can be installed for many years and is also cost effective as compared to other HVAC duct design methods.
Explanation of the Static Gain Method of HVAC Duct Design
There are 3 basic parts of a HVAC duct:
Enclosure part : it covers the entire duct from floor to ceiling and provides a path for air to enter and exit the system
Duct: it separates the outside air from inside air by providing some space between the two.
HVAC system: it is an energy-efficient system and allows air movement in and out of the ducts.
Static Gain Method of HVAC Duct Design
In this type of HVAC duct design, it is divided into two different sections. The first section is known as the enclosure part and the second section is known as the duct part.
Enclosure part:
The enclosure part is made of insulation materials to protect the duct part from the outside and maintain temperature. The enclosure part provides a path for the air to enter and exit the system. The use of this part is necessary as a part of the conventional HVAC duct design.
Duct part:
The duct part is divided into sections and placed in the floor. The sections are marked as one foot, two foot and five feet.
Option: Compression type
The other popular HVAC duct design method is the compression type. It uses the use of metallic cylinders, blocks and blocks of wood or foam to design the duct work. The metal cylinders and blocks can be compression type, axial type or alternating type. Compression type is suitable for smaller sized ducts. Axial type and compression type are used together in many HVAC ductwork systems. The axial type is used for large ducts whereas compression type is used for small ducts.
In the case of compression type HVAC duct design method, the diameter of the duct part is big enough to provide ventilation to the whole space of the ductwork system. This type of duct design method is appropriate for large ducts.
In case of axial type HVAC duct design method, the diameter of the duct part is small and it does not provide enough air flow to the system. In case of the axial type HVAC duct design method, the duct part is designed with large diameter but it is placed at an angle of 45° to 90°. The angle of the duct work means that the air flow from inside the system is not efficient and requires extra air pressure to enter the system.
In case of the alternating type of HVAC duct design method, the diameter of the duct work is similar to compression type but the depth is small. The depth of the duct part refers to the amount of air that is allowed to enter the system per unit area. In case of the alternating HVAC duct design method, the depth of the duct part is equivalent to the thickness of the material of the duct work. The length of the duct work with the density of air is equal to the length of the duct work with the density of water.
Conclusion:
The HVAC duct design using the use of each of the above HVAC duct design method is suitable for different sized ductwork systems. Each of the above HVAC duct design method has different advantages and disadvantages. It can be utilized for large or small ductwork system. HVAC ductwork system manufactured using one of the above HVAC duct design method is efficient and can be installed by the HVAC installation specialists or by the HVAC contractors in the specific area.
Access Previous parts of this course, if you have missed them, by clicking Below...
How to Calculate External Static Pressure (ESP) with worked Example
How to Calculate Area of Sand Trap Louver with worked Example and detailed steps
.png)
.png&description=Heating Ventilation and Air Conditioning Full Course - HVAC Course (Part 59)){kind=link}
0 Comments
If you have any doubts, please let me know