Induced draft ACHE are also less likely to recirculate hot exhaust air due to exit air velocity being much higher when compared with forced draft designs. The covered design of these units display higher heat transfer effects without the fans operating in comparison to forced draft units because of natural convection due to the stack effect.
The primary reason for choosing the induced design over the forced method of cooling is for additional control in unpredictable climates. Increased coverage of air flow across the tube bundle coupled with limited exposure above the bundle to the elements create additional cooling control. Induced draft heat exchangers also benefit from a longer service life in most cases due to this added protection from the weather.
Once you have determined the input, outlet and maximum ambient temperature for your application it is critical to allocate a space in your process or site for your cooler. We have experience working with unusual mounting spaces and locations. Based on the fluid or gas that needs to be cooled, the cooling energy required and the space available we can create a quote to meet your needs.
Our air cooled heat exchanger business is vertically integrated. We quote and design completely in house using HTRI and modern CAD tools. We fin our tube from raw materials for use in our tube bundles. We source, test and prepare all materials for headers and the units structure in house. Spiro Gills has recently invested in two large CNC machines to manufacture increase workshop efficiency. We can manufacture to all products ASME in steel and stainless steel. We have the ability to manufacture finned tube from stainless steel and fin in aluminium, copper or other alloys on request.
Spiro Gills are pleased to provide you with the following services;
- Thermal design
- Mechanical design of headers and steel structure
- Noise level predictions
- Preparation of the specification sheet
- Preparation of the general outline drawings
- Preparation of proposals
- Price estimation