AIR HEAT RECOVERY - TUBULAR - PIPE IN PIPE 2

thingiverse

If you print this project and you're happy with the final part, don't forget to buy me a roll of filament so I can continue testing and improving these projects or designing new ones. If you're not happy with this design or you have problems with your printed parts, send me a message and we'll try to fix it together! Update 2nd Dec 2020 - I uploaded the same parts with new names to avoid confusion and low poly. I print and install this system in my quail coop, and it's working great. I have a thermostat unit to control the system so it doesn't lower the temperature more than 22 degrees Celsius. It will require a drain system because a lot of condensation forms on the inlet aluminum tube. I'll update as soon as I design the drain system! Install the unit a few degrees from horizontal, and the condensation will accumulate at the end that's outside, so water will self-drain to the outlet port. Use the provided parts with 5 supports to allow the pipe to be lower at 4 meters length to 10mm. Not much, but it will do! Since the air is warm, the chances of it freezing are reduced, but in extreme temperatures, it's recommended to shut down the system if it gets clogged with ice. The outlet line uses two textile filters to keep quail dust out of the system. I'm working on printing an extra filter set so I can replace those filters daily. Have the same type of filter installed on both lines - inlet and outlet - for even pressure, especially in well-sealed rooms! Some of the "old" parts are modified, so to ensure all parts are a "good to go," I erase all parts and upload the ones I use for my project! Enjoy! My quail coop has 100mm insulation on the outside and PVC thermopanel doors and windows. The roof was also insulated, but we removed it to get rid of some mouse infestation... anyway... the heat generated by the quails - like +300 souls - manages to keep this room warm and cozy, no matter the outside temperature! For a workshop or small barn, fresh air without losing heat is a must. This design is not super esthetic but very efficient and easy to build. It's designed to use commercial PVC drain pipes and fittings, reducing 3D printed parts as much as possible. The ENDs are "T" connections - 160-110 mm. If HEPA filters are required, see the Heat Recovery Tubular - Pipe in Pipe for HEPA housing and connectors at: https://www.thingiverse.com/thing:4105811 The heat exchange takes place in a 160mm PVC drain pipe (thickness 3.2) and an extensible aluminum tube - 100mm. There are two versions of END CON: the first one is fully 3D printed, and the second one requires cutting a hole in the 160mm PVC pipe and using a M4-18mm bolt/nut/washer to secure it. Use 2X120mm fans for inlet and outlet. Use the same type of fans for even airflow! Build your own air diffuser! For a wide spread of fresh air, see the sample with a 110 PVC pipe with holes in it (closed at one end). Over 100 holes (10mm) will be needed to equalize the airflow on a 110mm pipe. Use spacers to center the aluminum pipe and secure them with aluminum tape every 300mm. The aluminum pipe will be secured at the end terminations with a pipe clamp and aluminum tape. If you don't have a pipe clamp, see the 3D printable model provided - it uses an M4-18mm bolt/nut/washer. All parts are checked for naked edges or errors, so they're all going to be printable! If the design is good or if the parts fit... that's another story! Design to print without support... mostly... except for the parts that need support.