With on-vehicle LNG, if frosting occurs on the tank body during use, is it due to insufficient vacuum level in the interlayer?
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For on-vehicle LNG, if frosting occurs on the tank body during use, is it due to insufficient vacuum level in the interlayer? In DB32/2037-2012, when this occurs, it is necessary to check the vacuum level in the interlayer. So, if frost forms after the vehicle comes to a stop, does that mean the vacuum level is insufficient? Some people say it’s normal; is frosting normal as well?
No matter how low the vacuum level is, some heat will still be conducted to some extent. So the slight frosting you see isn’t a big problem