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This study aimed to review the barriers in widespread construction of Zero Energy Building (ZEB) in Korea. Nearly or net zero energy buildings have become a hot issue of building industry to reduce the fossil energy consumption and greenhouse gas emissions in the building sector. The concept of ZEB originally proposed in the 1970s and evolved in the form of “passive house” in Germany. The concept of the passive house has been adopted by more than 40 countries and institutions, and it is the basis of the building energy policies in the world. Moreover, the physical performance criteria of the current ZEB based on the physical standards of the passive house suggested by German Passive House Institute. Meanwhile, due to different weather conditions and heating and cooling conditions from Germany, passive house standards are adjusted differently for each country. In Korea, however, the German standard is applied without any adjustments. This result in a difference in energy demand from predicted to actual usage. In addition, heating and cooling energy demand may be reduced, but the thermal comfort of the occupant may be compromised. In this paper, the issues that are hindering the domestic distribution of ZEB will be discussed.
Currently, building energy has received much attention and many policies for ESCO business to minimize building energy were suggested in Korea. ESCO business, or energy retrofit business for existing buildings, hardly expanded in Korea. In this study, the state of the art for ESCO business will be reviewed.
The purpose of this study to develop the air-conditioning system that adopts adaptive model as an indoor climate control logic for energy saving. The adaptive model using the ability of human thermal adaptation could be expected to alleviate the indoor set-point temperature compared with the past heat-balance model. Especially, in case of hybrid air-conditioning system coupled with natural ventilation and heating/cooling system, the adaptive model can be describe the thermal comfort of inhabitant who stay at hybrid system controlled buildings with accuracy. In this paper, the concept of adaptive model will be described and the results of a continuous measurement on the actual thermal experiences and behaviors of thermal adaptation for office worker will be reported.
Developing an implementation strategy involves accomplishing Green campus needed to meet the campus-wide sustainability goals and objectives. By infusing sustainability into an institution's master plan, design standards, and campus-wide policies and practices, the goal of institutionalizing sustainability on-campus will be crucial. However, the most important thing to accomplish Green campus is to understand the diversities of the campus activities and building use pattern. In this study, the use of Building Energy Management System (BEMS) as a core technology to accomplishe Green campus will be analyzed.
The purpose of this study is to develop the air-conditioning system that adopts the adaptive model as an indoor climate control logic for energy saving. The adaptive model using the ability of human thermal adaptation could be expected to alleviate the indoor set-point temperature compared with the existing heat-balance model. Especially, in case of hybrid air-conditioning system coupled with natural ventilation and heating/cooling system, the adaptive model can be described the thermal comfort of inhabitant who stay at hybrid system controlled buildings with high accuracy. In this paper, the concept of adaptive model described and the results of a continuous measurement on the actual thermal experiences and behaviors of thermal adaptation for office worker reported.
송두삼(Doosam Song), 김동선(Dong-Seon Kim), 김수민(Sumin Kim), 김현정(Hyun Jung Kim), 남유진(Yujin Nam), 박윤철(Youn Cheol Park), 백영진(Young-Jin Baik), 조진균(Jinkyun Cho), 정재원(Jae-Weon Jeong) 대한설비공학회 2020 설비공학 논문집 Vol.32 No.6
This article reviews the papers published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2019. The purpose of this article is to understand the status of current research issues in the areas of heating, cooling, ventilation, sanitation, and indoor environments of buildings and plant facilities. Summary of this paper is follows. (1) The topics of the paper in the field of building mechanical system were the energy consumption, indoor environment analysis, building energy saving, ventilation system, data center, clean room and cogeneration. (2) The topics of the research in the field of indoor environment were the IAQ, ventilation, air cleaning, particulate matter, air-tightness, prediction model, machine learning, BEMS etc. (3) In the field of the refrigeration system, various topics were reported. Topics were refrigeration, dehumidification, heat pump cycle, integrated vehicle heat management, heat recovery system, heat exchanger, refrigerant, phase change material, electric scroll compressor, and absorption refrigerator etc. (4) The topics of the papers published in the field of heat and mass transfer were the heat and mass transfer of heat exchanger, heat storage and heat dissipation characteristics, heat exchanger, the heat transfer of the liquid evaporator, the thermal conductivity of the vapor chamber, hot air dryer and the thermoelectric element etc. (5) Ventilation was the most cited keyword in the papers published in 2019, and the next was the fluid mechanics, refrigeration, compressor, heating, heat pump, heat exchange, filter, heat transfer, heat storage, dehumidification, data center, air-tightness, PV, geothermal energy, simulation, mass transfer, negative pressure isolation room etc.
송두삼(Doosam Song), 김동선(Dong-Seon Kim), 김수민(Sumin Kim), 김현정(Hyun Jung Kim), 남유진(Yujin Nam), 박윤철(Youn Cheol Park), 백영진(Young-Jin Baik), 조진균(Jin-Kyun Cho), 정재원(Jae-Weon Jeong) 대한설비공학회 2019 설비공학 논문집 Vol.31 No.6
This article reviews the papers published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2018. The objective of this article is to understand the current issues in the areas of heating, cooling, ventilation, sanitation, and indoor environments of buildings and plant facilities as per the recent research. Summary of this paper is follows : (1) The papers published in the field of building mechanical system can be categorized into equipment for multi-residential buildings and building envelope related technology, data center and clean room related technology, renewable energy related technology, and other related technologies. The topics included the energy consumption, indoor environment analysis, energy saving measures for radiant floor heating, temperature stratification of underfloor air-conditioning system, management of electric power demand, clean room humidification, initial cost of central heating and cooling system, solar thermal storage, data center air conditioning system and its performance evaluation, and underfloor heat exchanger performance etc. (2) Articles in the field of building environment can be classified into indoor environment, building energy and others. The research topics included; the comfort of passenger in automobile, the roof ventilation of the arcade type market, the flush out of new apartment buildings, window energy efficiency ratings, the windows' airtightness and opening performance, pollutant diffusion in national inpatient isolation units, shading evaluation of PV module, light-shelf with PV, hospital building energy management process, IAQ in children"s facility, underground parking lot, smoke control, cool loop etc. (3) Various topics were reported in the field of refrigeration system. The topics included; membrane-based dehumidification system for residential building, heat pump performance enhancement using waste heat, LiCL dehumidification performance, integrated vehicle heat management, heat recovery system, regeneration type geothermal heat pump, open geothermal system, plate heat exchanger, freezer operation error diagnosis, absorption type refrigerator, two-stage inflatable auto-cascade refrigerator, electric scroll compressor, and absorption refrigerator with thin film adsorption heat exchanger etc. (4) The topics of the papers published in the field of heat and mass transfer included; the performance of multi-stacked fuel cell systems, heat dissipation performance of heat sink, heat transfer and pressure drop of the liquid nitrogen cooling heat exchanger, compressive dehumidifier, pressure loss and heat transfer of plate heat exchanger, heat and mass transfer of heat exchanger, inner tube heat transfer coefficient of the supercritical carbon dioxide, heat storage and heat dissipation characteristics of the regenerative dual cylindrical tubular heat exchanger, the liquid evaporator heat transfer, and the thermal conductivity of the vapor chamber. (5) Ventilation was the most cited keyword in the papers published in 2018, while the subsequent were the heat exchange, heat transfer, energy performance, air-conditioning, refrigeration, heat pump, dehumidification, building energy, absorption chiller, compressor, PV, refrigerant, simulation, data center, thermal sensation, mass transfer, floor heating etc.