• 한국건축시공학회지
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• 제15권1호
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• pp.115-121
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• 2015

최근 건축물이 대형화되고 비정형화됨에 따라 기존의 2차원 도면으로 3차원을 표현하는 데 한계가 있고 설계오류파악, 공사 물량과 공사비 오차의 발생, 시공오류의 예측 부재, 기둥, 보, 기계설비 배관 등의 부재간의 충돌 등의 문제점을 개선하고자 건설 현장에서 BIM(Building Information Modeling; 이하 BIM)이 사용되고 있다. 그러나 실질적으로 건설 공사 현장의 직원들을 대상으로 BIM의 사용법을 교육하고 평가하여 실질적인 구현 방법을 충분히 숙지하게 한 이후에 BIM을 공사 현장의 공사 관리 업무에서 사용하게 하여 BIM 사용에 따른 효과를 분석한 연구는 전무하다. 이에 본 연구는 BIM의 교육, 평가, 실시에 따른 공사현장에서 BIM의 효과를 설문조사를 통하여 실증적으로 분석하고 개선방향을 제시하고자 한다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2007년도 춘계학술대회논문집
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• pp.701-705
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• 2007

The equipment noise of machine room that generates at the building where human-being is living, is becoming to an object of strong civil appeal, and because it influences to the residential space through the floor or wall, its damage is very serious level. Accordingly, while an efficient forming of the sound insulating measures is earnest, as most of the transmission loss data was the material measured in laboratory, in case when it was applied to the job site, due to the precision difference of constructing work and the influence of detoured transmitting sound, the case of disaccord is the most. Therefore, this thesis has intended to present a fundamental data for an efficient establishment of sound insulation measure, by means of comparison analysis with the existing transmission loss data, after measurement of the transmission loss on the object of various walls, at the construction equipment machinery room.

• 한국지열·수열에너지학회논문집
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• 제15권2호
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• pp.10-16
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• 2019

In this study, the present regulation of heat metering for the ground source heat pump was investigated. The ground source heat pump has been adopting the heat metering system used in the district heating system for estimating the heating and cooling energy production amount. The accuracy of the present heat metering systems for a water to water ground source heat pump is low, because the system for district heating has a relatively high temperature range comparing with the ground source heat pump operating conditions. Even though the heat amount for the building side should be measured, the heat absorption and extraction amount from or to the ground was measured for the water to air ground source heat pump due to the difficulty of estimating the air side heating and cooling capacity in the present regulation. It is highly recommended to validate the heat metering system to have reliability for the ground source heat pump and develop the system to be applicable water to air ground source heat pump.

• 한국지열·수열에너지학회논문집
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• 제17권3호
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• pp.1-12
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• 2021

In this study, the effects of various operational conditions for floor radiant heating system were researched by experiments. Hot water supply set temperature, indoor air set temperature and supply water flowrate were considered as operational conditions. The control method for this system is On-Off control of automatic thermostatic valve. The purpose of this study is to evaluate indoor thermal control characteristics and energy performance, respectively. As a result, if lower supply water temperature is applied, the supply and return temperature difference is reduced and energy consumption of heat supply is also reduced.

• 한국지열·수열에너지학회논문집
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• 제16권4호
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• pp.16-23
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• 2020

In this study, the control characteristics and effects of control methods on heating performance and energy consumption for the hot water floor radiant heating control system of a residential apartment were research by experiment. As a control method, On-Off control and outdoor reset control methods with GRNN(General Regression Neural Network) and without GRNN are considered. Also, the control performances with regard to improvement of indoor thermal environment and reduction of energy consumption are compared, respectively. Experiment results show that the performance of the control method with GRNN is better than that of conventional on-off control method without GRNN in the responses of room set temperature and energy saving.

• 한국건설관리학회논문집
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• 제14권2호
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• pp.184-193
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• 2013

국내 건설산업은 경직된 산업 구조와 건설 생산 활동에 대한 비효율적인 제도적 규제 등으로 인해 성장세가 저하되고 경쟁력이 뒤떨어지는 등의 문제점이 지적되고 있다. 현행 분할 분리발주 제도의 경우 국가 계약법에서는 분할발주는 원칙적으로 금지하고 있으나, 그 예외 조항으로 두고 있어 전기, 정보통신, 기계설비, 건축폐기물 공종의 경우 분할발주가 의무화 가능하고, 소방시설공사의 경우 의무화 추진을 위한 노력으로 소방시설공사업법 일부개정법률안을 발의하는 등 지속적으로 의무화 추진중이다. 기계설비공사업은 분할발주 관련 법률은 없으나 국가계약법 제68조 제3호를 근거하여 일부 시 도 교육청에서는 기계설비공사의 분리발주 확대 추진하고 있는 실정이며, 공종별 별도 법안을 추진하고 있는 공종도 있는 것으로 파악되고 있다. 이에 본 연구에서는 분리분할 발주에 대한 제도 분석 및 분리발주에 대한 전문가의견 청취 및 유관기관별 의견을 정리하여 건설산업 제도 선진화 방안을 제시하고자 한다. 이에 본 연구에서는 발주자의 효율적인 발주방식의 선택권 확보차원에서 발주자의 역량 및 프로젝트의 특성 등에 따라 분할 발주 여부를 유연하게 결정할 수 있도록 분리분할발주 제도의 개선안을 제시하여 건설사업차원에서의 효율적이고 생산적인 건설생산이 가능한 유연한 건설사업 수행 체계를 형성할 수 있는 기반을, 그리고 건설 산업차원에서는 국내 건설산업의 균형 발전과 함께 국제 경쟁력 향상을 고려한 구조를 제공할 수 있는 방안을 제시하고자 한다.

• 한국건설관리학회논문집
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• 제22권3호
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• pp.31-39
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• 2021

모듈러 공법은 내장재와 기계·전기 설비 등이 시공된 구조체를 제작 공장에서 건설 현장으로 운반하여 설치 및 시공하는 공법이다. 모듈러 공법은 특히 주택과 같은 소규모의 비교적 구조가 간단한 건축물을 대상으로 활발하게 적용되고 있는 추세이다. 국내건설 산업에 모듈러 주택의 도입된 기간이 길지 않은 만큼 아직 모듈러 주택의 환경적 특성에 대한 연구가 부족한 실정이다. 따라서 본 연구의 목적은 모듈러 주택의 단열성능을 적외선 이미지 분석과, Air-Surface Thermal Ratio 방법, 실내외 온도차비를 활용하여 실증적으로 분석하는 것이다. 이를 위해 실제 서울시에 위치한 준공 후 2년이 경과된 모듈러 주택과 RC 주택을 비교하여 단열성능 분석하였다.

• 한국지열·수열에너지학회논문집
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• 제15권3호
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• pp.14-20
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• 2019

In this study, the technologies and regulations for distributing standing column well(SCW) ground source heat pump systems to the residential cluster homes were investigated. They have only been installed in the public or commercial building having different load pattern and site structure compared with the residential cluster homes. Some of SCWs for the residential cluster homes should be installed under the basement due to a lack of site area. There are pressure differences between the SCWs installed under ground surface and basement. It is needed to develop the technology or devices to prevent overflow caused by pressure difference among the SCWs. In addition, heat balance algorithm between SCWs should be adopted to maximize the system efficiency. A heat pump having heating, cooling, hot water, heating-hot water, and cooling-hot water modes should be developed for adopting an individual air-conditioning system to the residential cluster homes.

• 한국지열·수열에너지학회논문집
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• 제17권4호
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• pp.36-45
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• 2021

In this study, to improve the indoor thermal environment of the radiant floor heating system, a study was conducted on the temperature change characteristics and energy consumption according to the change of the indoor air set temperature, the supply hot water temperature and the outdoor temperature. As for the control method, the on/off control and the thermal difference proportional control method proposed through previous studies were applied. In addition, in consideration of field applicability, numerical analysis was performed for the case where the indoor air temperature sensor was affected by the wall temperature. As a result, it was found that the temperature difference proportional control method is more effective for thermal comfort and energy saving than on/off control.

• 한국지열·수열에너지학회논문집
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• 제18권4호
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• pp.33-44
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• 2022

In this study, we analyze the existing heating and cooling operation method for an office-type complex building with a central heating and cooling system, and examine the effects of applying various EMS that can be applied according to the load size to save energy in the building. For this purpose, simulation analysis was performed. As a control method, reset control of chilled water, hot water, cooling water and supply air temperatures, optimal start/stop of heat source, and number of heat source control were applied according to the load size, and energy consumption was analyzed accordingly. In addition, when all of these control methods were applied, the overlapping energy saving effect was finally confirmed. As a result, it was possible to confirm the energy saving effect when EMS for reset control and heat source control were applied compared to the existing control method of the heating and cooling system, and the effect for the case of using all these control methods in combination was also confirmed.