Table 4.1 , which gives optical parameters in the solar spectrum irradiance and infrared radiation,
Select all the statements that are correct below:

Question

Table 4.1 , which gives optical parameters in the solar spectrum irradiance and infrared radiation, 
 Select all the statements that are correct below:

Accepted Answer

The  αₛ/εᵢ  ratio is a key indicator of absorber efficiency.

Accepted Answer

The  non-selective absorber  has an αₛ/εᵢ ratio close to 1, indicating poor thermal performance.

Accepted Answer

Titanium-oxide-nitride in Table 4.1 is the most efficient absorber listed.

Answer

A high εᵢ value helps the absorber retain more heat.

Answer

Selective surfaces are defined by  low αₛ and low εᵢ .

Answer

An absorber with  αₛ = 0.95  and  εᵢ = 0.05  will perform worse than one with  αₛ = 0.95  and  εᵢ = 0.95 .

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Table 4.1 , which gives optical parameters in the solar spectrum irradiance and ...

Table 4.1, which gives optical parameters in the solar spectrum irradiance and infrared radiation,

Select all the statements that are correct below:

A high εᵢ value helps the absorber retain more heat.

The αₛ/εᵢ ratio is a key indicator of absorber efficiency.

The non-selective absorber has an αₛ/εᵢ ratio close to 1, indicating poor thermal performance.

Selective surfaces are defined by low αₛ and low εᵢ.

An absorber with αₛ = 0.95 and εᵢ = 0.05 will perform worse than one with αₛ = 0.95 and εᵢ = 0.95.

Titanium-oxide-nitride in Table 4.1 is the most efficient absorber listed.

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