Covid19 virus: the disinfectant mask by thermal viral inhibition (+ UVc?)?

How to stay healthy and prevent risks and consequences on your health and public health. occupational disease, industrial risks (asbestos, air pollution, electromagnetic waves ...), company risk (workplace stress, overuse of drugs ...) and individual (tobacco, alcohol ...).
Christophe
Moderator
Moderator
posts: 79126
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10974

Covid19 virus: the disinfectant mask by thermal viral inhibition (+ UVc?)?




by Christophe » 02/04/20, 21:56

The Covid19 virus like all Coronaviruses is THERMOLABILE: it does not survive above 70 ° C for a few seconds ... it is a proven fact!

So why not disinfect the air in the Covid19 with non-filtering but thermal masks which will heat the air> 70 ° C rather than filter it !! ??

We can, of course, do both: filtration THEN heating!
?


It would suffice to thermally disinfect the air, let's say at 90-100 ° C for a few seconds? !

Addition: read this thesis Doctorate on viral inactivation by physical methods by Swan Firquet

(thanks Padawan: health-pollution-prevention / virus-covid19-the-mask-thermal-disinfectant-t16392-60.html # p389870)

This graph is shown on page 77:

Image

It therefore takes just 1 second at 110 ° C to inhibit the H1N1 virus by a log factor of 4!

Edit 0: the calculations below allow to estimate log order reduction 7 to 90 ° C in just 1 second...
See: health-pollution-prevention / virus-covid19-the-thermal-disinfectant-mask-t16392-30.html

But putting a mini inter-cooler to lower the temperature is not a major technical problem ...

Thermal level: a gas camping gas cylinder would certainly suffice for more than a few hours of breathing, or much more !!

I'm going to do some table corner calculations.

Edit: they are done, see below, it takes less than 30W to heat the air of an adult at rest! So we can use a battery!

Basing yourself on a snorkeling mask is a possibility, it turns out that I have 1, I also have pipes, batteries and PC fans ... I just need to find the heating element and the regulation and I can make a prototype!

snorkeling.jpg
snorkeling.jpg (42.01 KB) Viewed 8861 times




Edit2: as suggested here we can make a UV disinfection mask too! No doubt less energy-consuming, but disinfection does not prevent the other!

ps: this subject can precede a possible patent ... for those to whom it would cross the mind ... : Cheesy:

Add: IMPORTANT the COVID19 thermal inhibition curves

Sources and methods below in this topic. They are based on the measurements from this study: https://www.medrxiv.org/content/10.1101 ... l.pdf+html ou download/file.php?id=13626 ou health-pollution-prevention / freeze-or-burn-the-covid-19-t16358-30.html # p388475

Image

Image
0 x
User avatar
Paul72
I posted 500 messages!
I posted 500 messages!
posts: 684
Registration: 12/02/20, 18:29
Location: Sarthe
x 139

Re: Covid19 Virus: the thermal disinfectant mask!




by Paul72 » 02/04/20, 22:00

it's April 2, the fish was yesterday ... : Mrgreen:

Good night
0 x
I'm allergic to idiots: sometimes I even get a cough.
User avatar
phil12
I posted 500 messages!
I posted 500 messages!
posts: 530
Registration: 05/10/09, 13:58
Location: Occitania
x 156

Re: Covid19 Virus: the thermal disinfectant mask!




by phil12 » 02/04/20, 22:20

Paul72 wrote:it's April 2, the fish was yesterday ... : Mrgreen:

Good night


We have napalm!
0 x
Sustainable energy consulting for construction
http://www.philippeservices.net/
Christophe
Moderator
Moderator
posts: 79126
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10974

Re: Covid19 Virus: the thermal disinfectant mask!




by Christophe » 02/04/20, 23:13

Bunch of funny ... : Cheesy:
0 x
Christophe
Moderator
Moderator
posts: 79126
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10974

Re: Covid19 Virus: the thermal disinfectant mask!




by Christophe » 03/04/20, 13:40

So what power does it take to heat respiratory air by 100 ° C?

The answer is simple:

Thermal power = mass capacity of air * the maximum mass flow of an adult man.

Women and children have a lower volume.

It is therefore an increased table corner calculation!

sources:
http://www.ilocis.org/fr/documents/ilo010.htm
https://www.canada.ca/content/dam/hc-sc ... at-fra.pdf
respirat-eng.pdf
(634.26 KB) Downloaded times 1616

And a PhD from Polytechnique:
https://pastel.archives-ouvertes.fr/pas ... 6/document

manuscript1.pdf
(8.56 million) Downloaded times 514


launois_rollinat_sandrine_p03.pdf
(1.5 million) Downloaded times 551


a) The respiratory volume, greatly increased, of an adult man is 8 L

At rest it is closer to 1 L ...

Screenshot_2020-04-03 Dynamics of oxygen transport and transfer within the pulmonary acinus - document.png
Screenshot_2020-04-03 Dynamics of oxygen transport and transfer within the pulmonary acinus - document.png (84.82 KB) Consulted 8903 times


b) The respiratory rate varies greatly according to age - and obviously the activity

At rest we have our values:

Screenshot_2020-04-03 respirat-eng pdf.png
Screenshot_2020-04-03 respirat-fra pdf.png (18.18 KiB) Viewed 8903 times


So 20 * 8 = 160 L per minute in reality is necessarily less ... much less:

https://eurekasante.vidal.fr/sport/corp ... sport.html

During the effort, the volume of air circulated by the lungs goes from around 6 to 8 liters per minute at rest to 80 to 150 liters per minute, depending on the intensity of the exercise. In very high level athletes, this volume can even reach 250 liters per minute. At the same time, many pulmonary capillaries expand to increase the flow of blood through the lungs. This adaptation allows to take and fix more oxygen on the hemoglobin of red blood cells.


A high level sportsman is 250 L per minute: https://eurekasante.vidal.fr/sport/corp ... sport.html

So I retain 100L per minute ... it's 10 times more than necessary at rest!

c) 100 L per minute is roughly 130 g of air per minute for air entering at 0 ° C.

Either a flow of 2.2 g / s in "effort" mode
Or a flow rate of 0.22 g / s in "rest" mode

d) The thermal mass capacity of the air is approximately 1004 J / kg.K

It therefore requires a power of 2.2 / 1000 * 1004 * 100 = 220 W in sport mode and only 10 times less at rest, i.e. 22 W

22 W is nothing at all the use of an electric battery is possible!

Lipo batteries are 200W per kg ... a single kg of battery would therefore last 1 hour in sport mode and 1 hours at rest!

We can therefore consider a machine weighing a few kg ...

These powers are voluntarily increased! But you will have to add some accessories like fans ... we will be below 30W in any case! 8) 8) 8)

So who wants to finance manufacturing?
0 x
User avatar
Macro
Econologue expert
Econologue expert
posts: 6459
Registration: 04/12/08, 14:34
x 1610

Re: Covid19 Virus: the thermal disinfectant mask!




by Macro » 03/04/20, 13:46

And you also need an exchanger to cool this air before blowing it into the guy's lungs ... Because in my opinion with air heated to more than 70 ° .... The lungs should not last long ...
1 x
The only thing safe in the future. It is that there may chance that it conforms to our expectations ...
Christophe
Moderator
Moderator
posts: 79126
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10974

Re: Covid19 Virus: the thermal disinfectant mask!




by Christophe » 03/04/20, 13:57

Macro wrote:And you also need an exchanger to cool this air before blowing it into the guy's lungs ... Because in my opinion with air heated to more than 70 ° .... The lungs should not last long ...


Yes and I said it: a small intercooler would be enough (or simply a long enough grooved pipe) ... the flow was very low, the air will have plenty of time to cool naturally in a 1 to 2 m pipe!

Do not forget that you can breathe air very well at 60, 70 ° C, 90 ° C ... in the sauna!

And you can put it in your hand in an oven at 300 ° C ... as long as you don't touch the walls! : Cheesy:

By cons we burn from 45 ° C in water ...
0 x
User avatar
GuyGadebois
Econologue expert
Econologue expert
posts: 6532
Registration: 24/07/19, 17:58
Location: 04
x 982

Re: Covid19 Virus: the thermal disinfectant mask!




by GuyGadebois » 03/04/20, 14:03

Macro wrote:And you also need an exchanger to cool this air before blowing it into the guy's lungs ... Because in my opinion with air heated to more than 70 ° .... The lungs should not last long ...

Bof, when you know the Finnish sauna ...
0 x
“It is better to mobilize your intelligence on bullshit than to mobilize your bullshit on intelligent things. (J.Rouxel)
"By definition the cause is the product of the effect". (Tryphion)
"360 / 000 / 0,5 is 100 million and not 72 million" (AVC)
User avatar
Paul72
I posted 500 messages!
I posted 500 messages!
posts: 684
Registration: 12/02/20, 18:29
Location: Sarthe
x 139

Re: Covid19 Virus: the thermal disinfectant mask!




by Paul72 » 03/04/20, 14:03

Simple and clear answer: the air flow is too fast to see the viruses destroyed, even at 100 degrees celsius.
A cartridge or Hepa filter is more effective. Finally if we can say.
0 x
I'm allergic to idiots: sometimes I even get a cough.
Christophe
Moderator
Moderator
posts: 79126
Registration: 10/02/03, 14:06
Location: Greenhouse planet
x 10974

Re: Covid19 Virus: the thermal disinfectant mask!




by Christophe » 03/04/20, 14:08

Paul72 wrote:Simple and clear answer: the air flow is too fast to see the viruses destroyed, even at 100 degrees celsius.
A cartridge or Hepa filter is more effective. Finally if we can say.


Ah yes? 0.2 g / s is it fast? It all depends on the section / surface of the heater ... Before concluding too quickly and when we don't know or we are talking in a vacuum * the best is to be silent!

In a few seconds at 100 ° C the coronavirus is kaputt!

This mask will obviously include a classic filtration system as well: it is noted above! Air heating is an additional security!

* like I’m going to add you to the troll list, that’s already some messages that prove that you are an embittered ...
0 x

 


  • Similar topics
    Replies
    views
    Last message

Back to "Health and Prevention. Pollution, causes and effects of environmental risks "

Who is online ?

Users browsing this forum : No registered users and 330 guests