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What's the meaning of the unit "Clo"

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Old   December 11, 2004, 09:07
Default What's the meaning of the unit "Clo"
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Tony
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I have got the following information: Clo - Clothing and Thermal Insulation Clo is used to measure the thermal insulation of cloths Cloth's insulation are normally measured with the unit "Clo", where 1 Clo = 0.155 mēK/W

If there is a manikin whose heat flux is 10w/m2, and the insulation value of the clothes is 0.5 Clo ,then when we compute the heat transferred to the environment from the manikin , how should we do? What's the function of this parameter in the computation? thx
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Old   December 13, 2004, 02:55
Default Re: What's the meaning of the unit "Clo"
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Robin Bornoff
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Clo is an inverted heat transfer coefficient.

Qdot (W/m^2) = 1/Clo (T_manikin - T_ambient)

The temperature rise between the manikin and the environment for your example would be 1.55 degC.

Robin.
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Old   December 13, 2004, 03:11
Default Re: What's the meaning of the unit "Clo"
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Tony
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Thank you for your reply, Mr.Robin
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Old   December 13, 2004, 03:59
Default Re: What's the meaning of the unit "Clo"
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Tony
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Mr.Robin: according to the equation you gave, and in my example I set the insulation value to be 0.5 Clo, the temperature between the manikin and the environment should be 10*0.155*0.5=0.775 degC, not 1.55degC, right?
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Old   December 13, 2004, 08:08
Default Re: What's the meaning of the unit "Clo"
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Tony
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Mr.Robin: according to the equation you gave, and in my example I set the insulation value to be 0.5 Clo, the temperature between the manikin and the environment should be 10*0.155*0.5=0.775 degC, not 1.55degC, right?
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Old   December 13, 2004, 10:16
Default Re: What's the meaning of the unit "Clo"
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Robin Bornoff
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Oops, yes u r right!
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