UV and harmful gases formation at aging test chamber

In summary, There is a UV aging test chamber at work with UVA, UVB, and UVC radiation levels. The chamber is large and requires going in and out to collect items. The use of high pressure mercury discharge lamps can lead to ozone formation inside the chamber. A document on high power discharge lamps and their photochemical applications was found, but there are still questions about the formation of ozone at ground level and the effects of UV radiation on O2.
  • #1
Stroj
2
0
Hello!

At work we have an UV aging test chamber that produces around 140 W.m^-2 UVA 15 W.m^-2 UVB and less then 1 W.m^-2 of UVC.

The chamber is big, we have to go in and out to collect the items.

Is it possible to have ozone formation or other harmful gases inside the chamber?
 
Chemistry news on Phys.org
  • #2
If you use high pressure mercury discharge lamps, then you are generating ozone.
 
  • #3
Thanks for your answer. I will see tomorrow what type of lamps are used.

Meanwhile, following your answer I found this document:

http://cdn.intechopen.com/pdfs/3462...cations_an_evaluation_of_pulsed_radiation.pdf

that helped me to understand better about lamps for UV applications.

Nevertheless, I still have some questions:
1. Ozone formation at ground level needs NOx and VOC and UV radiation (any wavelength?)
2. UV radiation bellow 200 nm wavelength (or only at 185 nm ?) can split O2 leading to he formation of O3
 

1. What are UV and harmful gases?

UV stands for ultraviolet, which is a type of electromagnetic radiation with a shorter wavelength than visible light. Harmful gases refer to any gases that can have negative effects on living organisms or the environment.

2. How are UV and harmful gases formed in an aging test chamber?

In an aging test chamber, UV and harmful gases are formed through the process of photodegradation. This occurs when materials, such as plastics, are exposed to UV light and oxygen, leading to the breakdown of chemical bonds and the release of harmful gases.

3. What types of materials are susceptible to UV and harmful gas formation in an aging test chamber?

Materials that are most susceptible to UV and harmful gas formation in an aging test chamber include plastics, rubber, and other organic materials. These materials are commonly used in a variety of products, such as packaging, furniture, and electronics.

4. What are the potential health and environmental risks associated with UV and harmful gas formation in an aging test chamber?

The release of harmful gases, such as ozone, can have negative effects on human health, such as respiratory irritation and exacerbation of existing conditions like asthma. These gases can also contribute to air pollution and damage the ozone layer, leading to potential environmental impacts.

5. How can the formation of UV and harmful gases be prevented in aging test chambers?

To prevent the formation of UV and harmful gases in aging test chambers, proper ventilation and air filtration systems should be in place. Additionally, using materials that are resistant to UV and gas degradation can also help mitigate these effects. Regular maintenance and monitoring of aging test chambers can also help identify and address any potential issues early on.

Similar threads

How to determine UV lamp dosage values of 10-20 mJ/cm2
    • Electrical Engineering
Replies
5
Views
2K
Medical Using Far-UVC Light To Kill Airborne Human Coronaviruses
    • Biology and Medical
Replies
33
Views
6K
B Investigating the Impact of Chips on Packaging Pressure Differential
    • Other Physics Topics
Replies
5
Views
1K
Just curious about many things like hydrostatics
    • Mechanical Engineering
Replies
28
Views
2K
Chemically regenerating my auto's catalytic converter?
    • Chemistry
Replies
16
Views
2K
Hello, light freaks: UV radiant intensity of the sun at earth surface
    • Optics
Replies
2
Views
4K
Methods to find exoplanets more easily
    • Astronomy and Astrophysics
Replies
5
Views
2K
I Does Special and General Relativity Affect Aging of Apollo Astronauts?
    • Special and General Relativity
Replies
10
Views
1K
Perovskite semiconductors for solar photovoltaic cells
    • Materials and Chemical Engineering
Replies
4
Views
1K
Resonance Testing Method for Studying Chamber Resonance: Homework Questions
    • Engineering and Comp Sci Homework Help
Replies
2
Views
4K

Hot Threads

Recent Insights

Back
Top