Hello, this is kind of a silly question, I guess. I have never done anything with thermodynamics, other than the introductory class in undergrad 100 years ago. I have a practical question. They sell those 4 x 8' insulation panels for homes; .5 - 1" thick poly-isocyanate foam with aluminum reflective layer on one side. What does the aluminum foil layer do? Obviously it reflects light. Does it reflect infrared radiation? I have cut panels to put over my windows at night in the winter and the hottest nights of summer. I have the foil side facing inside the house. Is the foil doing anything for me? Does it still do anything once I close the curtains over it? I was thinking of covering the panels with "Contact Paper" to make them look more appealing. Obviously they would no longer reflect light off the foil layer, but I am thinking that, if the foil is for infrared purposes, the infrared heat radiation would penetrate the Contact Paper(R) and still be reflected by the foil. Or am I totally off the mark here? Maybe the amount of benefit provided by the foil in my application is negligible compared to the basic benefit of the thermal insulation, and I am way overthinking this.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a partâ€™s function at the center of their design considerations. Download Now
Metal 3D printing has rapidly emerged as a key technology in modern design and manufacturing, so itâ€™s critical educational institutions include it in their curricula to avoid leaving students at a disadvantage as they enter the workforce. Download Now
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now