• Journal of the Korean Society for Geothermal and Hydrothermal Energy
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• v.19 no.2
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• pp.8-19
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• 2023

Hydronic heated road pavement (HHP) systems have well studied and documented by many researchers. However, most of the systems run on asphalt, only a few are tested with concrete, and there rarely is a comparison between those two common road materials in their heating and cooling performance. The aim of this study is to investigate the thermal performance of the HHP, such as heat dissipation performance in winter season while focusing on the surface temperature of the concrete and asphalt pavement. For preliminary study a small-scale experimental system was designed and installed to evaluate the heat transfer characteristics of the HHP in the test field. The system consists of concrete and asphalt slabs made of 1 m in width, 1 m in length, and 0.25 m in height. In two slabs, circulating water piping was embedded at a depth of 0.12 m at intervals of 0.16 m. Heating performance in winter season was tested with different inlet temperatures of 25℃, 30℃, 35℃ and 40℃ during the entire measurement period. The results indicated that concrete's heating performance is better than that of asphalt, showing higher surface temperatures for the whole experiment cases. However, the surface temperature of both concrete and asphalt pavement slabs remained above 0℃ for all experimental conditions. The heat dissipation performance of concrete and asphalt pavements was analyzed, and the heat dissipation of concrete pavement was greater than that of asphalt. In addition, the higher the set temperature of the circulating water, the higher the heat dissipation. On the other hand, the concrete pavement clearly showed a decrease in heat dissipation as the circulating water set temperature decreased, but the decrease was relatively small for the asphalt pavement. Based on this experiment, it is considered that a circulating water temperature of 20℃ or less is sufficient to prevent road ice. However, this needs to be verified by further experiments or computational fluid dynamic (CFD) analysis.

• Journal of Industrial Technology
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• v.24 no.B
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• pp.47-57
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• 2004

This study is aiming to obtain the pabulum of architectural planning about out-patient clinic department in armed force hospital with search. The discussion was about characteristic problems and differentiated planning characteristics of common general hospital, So the conclusion of research is as follows. In army medical facilities, Because of architectural standard of out-patient clinic department about scale of facilities and characteristic in each examination-part is unprepared, it may have to be readied. Out-patient clinic department was become plan to scale about whole 7~8% in hospital to SB hospital in 95 but was planed about 5% of whole scale from PS hospital in 97. When plan hospital, increase of equipment and increase of module size about bed for the convenience of patient or employees are judged for cause in hospital since 97 years than previous hospital in 95.

• Journal of Industrial Technology
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• v.27 no.B
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• pp.177-184
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• 2007

Project Financing(PF) was introduced from the way of banks' conditional financing that take buried oil as security and offer required money to oil explores which have weak loaning ability in the U.S. 1930s. After that PF has developed with financial market and it has been activated in the market of Korea since 'An Institution about Private Financing Invitation Promotion' was established. Started with I-Hwa Ryoung tunnel project, PF has been used in the Metropolitan Area Airport Highway and etc. But because of the risk that occurred by PF's complexity and uncertainty, PF has not been used fully and there are only few practical examples. The purpose of the present study is to investigate how to decrease, identify and extract the risky factors of project that being planned by PF.

• Journal of Industrial Technology
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• v.30 no.A
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• pp.59-68
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• 2010

This study intended to examine the changes of residential building characteristics in period classification. The results of this study are as follows: During Joseon dynasty, it is judged that the social changes in the ideology of ruling classes did not directly affect the traditional residential style. The mid period and latter period of Joseon, it is changed toward horizontal and practical residential layout in place of confucian courtesy based style. During port opening period, the traditional residential style was remodeled through addition of glass panes to inter-chamber floor in tune with the influx of modern materials and ideologies like glass or cement etc. The Japanese ruling era of Korea period, the modern housing style of room separation type was settled.

• Journal of architectural history
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• v.30 no.2
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• pp.45-54
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• 2021

During the latter part of Joseon Dynasty, Local Confucian School(Geochanghyanggyo) had served as a government school and left many official documents on the educational construction. The construction of Local Confucian School(Geochanghyanggyo), which was recorded in official documents, was diverse, and most of them were reconstructed. Construction-works recorded in an official document was drafted in two ways. One was in the same format as the accounting records and the other was written in the diary format by date. The construction cost was mainly financed by selling the land owned. Of course, with the help of the government, they could receive some of the essential timber and expenses for the construction. The management and maintenance of educational construction was entrusted by a manager called 'Chaji(次知)'. Then there were employees called 'Jeonjik(殿直)' and 'Gojik(庫直)' and they were paid for their work.

• Journal of architectural history
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• v.28 no.3
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• pp.45-54
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• 2019

Mandongmyo(萬東廟) was a shrine built for two emperors of the Ming Dynasty in Huoyangri, Cheongju. Since the 17th century, the classical scholars of the Joseon Dynasty had valued Mandongmyo Shrine as a place for the so-called Jonjudaeui(尊周大義). In 1865, however, the shrine was demolished and ruined, afterward rebuilt by King Gojong(高宗) in 1874. King Gojong played an important role in the construction plan for the new shrine, which he adjusted the layout of the building and named it. Unlike in the past, the reconstructed shrine was thoroughly led by the government, and its architectural character was greatly transformed. The reconstructed Mandongmyo was respected as the national shrine, but subjected to oppression by the Japanese imperialism. The 68 years after it was rebuilt, the shrine was destroyed on the charge of inciting the sense of national consciousness.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.5
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• pp.89-96
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• 2018

Ami-dong Crematorium in Busan was established as one of the public facilities in 1929(the period of Japanese Occupation). It is the originator of Busan Yeongnak-Park(永樂公園), the funeral facilities of Busan municipality. The crematorium of Busan region was accepted at an earlier stage inside Japanese Concession in accordance with the opening a port. As Ami-dong Crematorium was constructed as a public facilities, the precedent has been maintained so far, providing a background equipped with the leading public corporation facilities in Busan area. This study was based on the expansion construction document founded by National Archives in Korea. Above all things, this research revealed the establishment and change of Busan Ami-dong Crematorium as the historical point for the formation process of recent public funeral facilities.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.7
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• pp.119-126
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• 2018

The Slaughterhouse is the place where animals are butchered for food. This study is to investigate the establishment and transition of slaughterhouse operated in Busanbu(釜山府) as public facilities during Japanese Colonial Period. It was established in relation to the application of hygienics which the idea of modern natural science and technology produced at that time. The establishment of slaughterhouse was based on the leading knowledge of public health. It also provided important revenues for the local government and became one of the techniques of Japanese Colonial Rule. The slaughterhouse was turned into the public management in 1921 and had to be shifted twice. Eventually, it had an effect on the culture of food greatly.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.35 no.6
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• pp.59-68
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• 2019

The purpose of this study was to analyze the spatial change of coastal area called Nampo-dong in Busan. And then the subject of research was chiefly concentrated upon the development of southern coast and the land-reclamation based on the commercial facilities after the opening port. There were various reclamation projects in the coastal area of Japanese settlement under the Rule of Japan. Busan Nambin Coast(Currently, Nampo-dong) was one of typical reclamation projects conducted in the southern seashore. Due to the characteristic of coastal area, fishery was developed well and the entertainment industry also grew rapidly with the characteristic of the short distance of urban centre. In this study, we investigated the process of reflecting the characteristic of spatial change that were pursued by communities at that time, particularly through the establishment and change of buildings.

• Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
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• v.12 no.6
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• pp.606-617
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• 2018

Increased density of racks has resulted in increased use of data center cooling energy and the needs for energy efficient cooling systems has increased. In response to these needs, ASHRAE presented a performance indicator, which is Mechanical Load Component (MLC), for the purpose of evaluating systems at the design stage. However, the MLC metrics presented in the current standard can only be determined for system compliance and compared alternative systems with the system configuration completed. Therefore, there are limitations to considering MLC from the early stages of design. In this study, to extend the scope of application of MLC in the design phase, the design factors of the main equipment comprising the cooling system are classified by the MLC load component and interrelations between design factors were identified.