Cafri wall~Care for Africa and know that there will be wisdom, peace and comfort which is not related to recourse allowed

Purpose: by the best mean to promote this energy saving system to replace cooling machine when it can save energy 

In the other consideration, there will be another interpretation for the importance of air conditioner. 

<The utilization of non-electrical consuming cooling system by similar method” shown in this sheet” to reduce the density of energy in air> and the use and extent of ideas presented in this document 

Situation: When on one side the pressure is higher than the other side by any means or reason 

 

Cafri wall~Care for Africa and know that there will be wisdom, peace and comfort which is not related to recourse allowed  

 

 

Lengthen of tube at the smaller side of hole to address the problem of rain 

 

Technical Spec. 

All the same colour preferred of colour match so that one will not cause fear of the hole (幽閉恐懼症). 

There should be a shape encourage an efficient way to reduce room temperature under mode wind speed. (The otter hole bigger? While not big enough to cause too windy effect to the house) spacing c-c by the distance of steel bar? Steel bar distance/2 will be cooler. 

There are two holes of bell shape section design direction: 

1. The bell hole is small, the structural capacity of the wall required no redesign (Preferred, as there will be macro change when match with the window usage. The indoor temperature will be lower, thus will draw the air flow into the house. Similar size of the small outer hole while  

2. The bell hole can be at its suitable size(bigger) when the higher cooling function is suggested. 

3. Gently inclined outward (say around 1:10~1:50) to ensure no drainage of rain inward. 

 

 

 

 

 

 

 

 

Page Brea

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The noise problem, natural sound is good for general sleeping? 

specially designed room for sleeping and reading? 

Say, sleep, Study in a box with good ventilation system 

For civil construction 

Wood material or hollow plastic? may also be used, then, the hole shape is changed into square and will be quite light 

It can also reduce the concrete use. 

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Maths model: 

Part 1 

1~at the side of smaller hole 

2~at the side of bigger hole 

Energy equation: 

Temperature 1*(Heat capacity 1)*p1*(Volumn of Injected fluid V1)= Temperature 2* (Heat capacity 2)*p2*(Volumn of Out let fluid V2)  

Volumn is stressed to increased, so the temperature 2, p1 and Heat capacity is reduced in this pipe system.  (This proof the function of this wall) 

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Part 2 

P1+1/2p1*v^2+pgy1= P2+1/2p2*v^2+pgy2 

The level effect ignored for wind. 

For A1<A2 

A1v1=A2v2 

v1>v2 

A1*(P1+(½)*p1*v1^2)= A2*(P2+(½)*p2*v2^2) 

p1>p2, v1>v2, So, P2>P1(P2 should > P1?) 

 The result returns to Part 1