Abstract
CFC-free technologies have been required. Heat pump which uses zeolites is the devise which can turn out high and low temperature environments not to use CFC. Currently we use two types zeolite which are type-A and type-Y. Considering size of pore which is depended on water molecule, we confirm the type-A zeolites is suitable for using heat pump. Therefore we measured thermo physical properties mainly of type-A zeolites. Then we measured the effective thermal conductivity of packed zeolites to improve heat transfer at that. This time, we used transient hot wire method which is grounded on JIS. We analyzed measured dates and examined estimated value of every each temperature, and found out relationship of effective thermal conductivity and water content.
