Purdue Research Foundation

Republic of Korea (management: Rural Development Administration)

J&g Corp.

Jong Woo Park

Young L Kim

Jungwoo Leem

Yuhyun Ji

Seong Ryul Kim

Chan Young Jung

Nam Sup Kim

Sang Mok Park

Jin Yong Kim

Seong Wan Kim

Sang Kug Kang

Heejae Jeon

Jeong Soo Shin

Kee Young Kim

A method for creating an information code configured by a silk film includes a process of creating a white silk film: a process of creating a micro-grating pattern on the white silk film, and a process of coating the white silk film with each of the plurality of fluorescent silk solutions in a corresponding position of the information code and the information code is configured by a color corresponding to each of the plurality of fluorescent silk solutions and a white color.

Information code creating method using fluorescent silk and information code created thereby

Provided is a geothermal heat system having reduced heat source residual heat of a geothermal heat pump. The geothermal heat system includes a ground heat exchanger unit, a geothermal heat pump, and a residual heat storage tank. A portion of heat source residual heat remaining in the geothermal heat pump is transferred on a geothermal heat exchange medium passing through the geothermal heat pump so as to be stored in the residual heat storage tank. As the internal temperature of the residual heat storage tank gradually becomes the same as the temperature of the underground, the thermal load of the underground is removed. At least a portion of the heat source residual heat produced during provision of cooling/heating to the location of use is processed, thereby improving the operating efficiency of the geothermal heat system having reduced heat source residual heat of a geothermal heat pump.

Geothermal heat system having reduced heat source residual heat of geothermal heat pump

Growing community of inventors

Jeollabuk-do, South Korea

Jong Woo Park