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Evaluation of thermal performance of energy textile installed in Tunnel

Lee, Chulho; Park, Sangwoo; Won, Jongmuk; Jeoung, Jaehyeung - In: Renewable Energy 42 (2012) C, pp. 11-22

A new geothermal energy source obtained from a tunnel structure has been studied in this paper. The geothermal energy is extracted through a textile-type ground heat exchanger named "Energy Textile" that is fabricated between a shotcrete layer and guided drainage geotextile. To evaluate the...

Persistent link: https://www.econbiz.de/10011045072

Relative constructability and thermal performance of cast-in-place concrete energy pile: Coil-type GHEX (ground heat exchanger)

Park, Sangwoo; Lee, Dongseop; Choi, Hyun-Jun; Jung, … - In: Energy 81 (2015) C, pp. 56-66

Energy piles encase heat exchange pipes in a pile foundation to use geothermal energy. This paper evaluates the constructability and thermal performance of energy piles equipped in a large-diameter drilled shaft. Two energy piles were constructed by fabricating coil-type heat exchange pipes in...

Persistent link: https://www.econbiz.de/10011209530

The role of trait core confidence higher-order construct in self-regulation of performance and attitudes : evidence from four studies

Stajkovic, Alexander D.; Lee, Dongseop; Greenwald, … - In: Organizational behavior and human decision processes : … 128 (2015), pp. 29-48

Persistent link: https://www.econbiz.de/10011342214

How does relative deprivation influence employee intention to leave a merged company? : the role of organizational identification

Cho, Bongsoon; Lee, Dongseop; Kim, Kwanghyun - In: Human resource management 53 (2014) 3, pp. 421-443

Persistent link: https://www.econbiz.de/10010378674

Psychological capital, Big Five traits, and employee outcomes

Choi, Yongduk; Lee, Dongseop - In: Journal of managerial psychology 29 (2014) 2, pp. 122-140

Persistent link: https://www.econbiz.de/10010259190

Activated at home but deactivated at work : how daily mobile work leads to next-day psychological withdrawal behavior

Jo, Yeseul; Lee, Dongseop - In: Journal of organizational behavior : OB ; the … 43 (2022) 1, pp. 1-16

Persistent link: https://www.econbiz.de/10012795712

Ethical leadership and employee moral voice : the mediating role of moral efficacy and the moderating role of leader-follower value congruence

Lee, Dongseop; Choi, Yongduk; Youn, Subin; Chun, Jae Uk - In: Journal of business ethics : JOBE 141 (2017) 1, pp. 47-57

Persistent link: https://www.econbiz.de/10011700980

Leader negative feedback-seeking and leader effectiveness in leader-subordinate relationships : the paradoxical role of subordinate expertise

Chun, Jae Uk; Lee, Dongseop; Sosik, John J. - In: The leadership quarterly : LQ ; an international … 29 (2018) 4, pp. 501-512

Persistent link: https://www.econbiz.de/10011916929

Refrigerant amount detection algorithm for a ground source heat pump unit

Choi, Hangseok; Cho, Honghyun; Choi, Jong Min - In: Renewable Energy 42 (2012) C, pp. 111-117

To make an energy efficient GSHP system, the heat pump unit should have high efficiency and be optimized well with other parts such as ground heat exchangers and pumps. The amount of refrigerant charge in the heat pump unit is one of the primary parameters influencing system performance. In the...

Persistent link: https://www.econbiz.de/10010805725

Effect of Tube-in-Tube Configuration on Thermal Performance of Coaxial-Type Ground Heat Exchanger

Lee, Seokjae; Park, Sangwoo; Kang, Minkyu; Oh, kwanggeun; … - 2022

Among various types of ground heat exchangers (GHEXs), a coaxial-type GHEX exhibits outstanding thermal performance owing to the geometric characteristics of the concentric tube-in-tube configuration. In this study, a computational fluid dynamics (CFD) model was developed and verified using...

Persistent link: https://www.econbiz.de/10013304742