• Title/Summary/Keyword: 가정용 가스보일러

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'콘덴싱 가스보일러 소비효율 높다'

  • Korea Boiler Engineering Association
    • 보일러설비
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    • no.3 s.170
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    • pp.100-102
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    • 2008

  • 콘덴싱 가스보일러의 열 효율이 일반 가스보일러에 비해 최고 9%까지 높은 것으로 조사됐다. 에너지 관리공단의 의뢰를 받아 '가정용 가스보일러 열효율 측정 및 효율등급 기준'을 연구해 온 가스안전공사는 최근 최종 결과를 발표했다. 지난 22일 가스안전공사 대회의실에서 개최된 연구결과 발표 공청회에는 산업지원부, 에너지관리공단, 가스안전공사 및 6개 보일러 제조업체 관계자가 참석해 연구용역 결과를 두고 뜨거운 논쟁이 벌어졌다. 콘덴싱 보일러와 일반 보일러간 난방효율 차이를 밝혀 내는 이번 연구 결과에 따라 국내 대표적인 6개 제조업체들의 시장 점유 판도가 달라질 수 있기 때문이다. 또한 가정용 가스보일러를 고효율 에너지기자재 인증대상에서 제외시킨다는 계획에 대해서도 상당한 이견이 제기됐다.

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Calculation of NOx Emission Factor of Domestic Boiler and Industrial Furnaces using LNG (천연가스 가정용 가스보일러와 산업용 요ㆍ로의 NOx 배출계수 산출연구)

  • Jang, Young-Gi;Jung, Bong-Jin;Song, Gi-Bong;Choi, Sang-Jin;Kim, Gwan;Jung, Mi-Suk;Cho, Jung-Sik
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.05b
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    • pp.322-323
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    • 2003

  • LNG보일러는 국내에서 환경개선을 목적으로 사용이 점차적으로 증가하고 있다. LNG는 타연료 연소에 비해 아황산가스나 기타 대기오염물질을 거의 발생시키지 않지만 NOx의 경우 연소 특성상 발생될 수밖에 없다. 따라서 본 연구의 목적은 LNG보일러 중에서 국내 배출계수 연구가 미비한 가정용 가스보일러와 산업용 요ㆍ로에서의 NOx 배출계수를 국내 실정에 맞게 개발하고 배출되는 NOx 특성을 파악하여 정확한 대기오염 배출량 산출에 관한 기초를 마련하고자 하였다. (중략)

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A Development of Test Method on the Energy Consumption Efficiency of Domestic Gas Boiler below 70 kW (70 kW 이하 가정용 가스보일러 에너지소비효율 실험방법 개발)

  • Park, Chanil;Kim, Laehyun
    • Journal of Energy Engineering
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    • v.25 no.3
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    • pp.73-82
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    • 2016

  • The energy consumption efficiency in a variety of operational test mode was considered for domestic gas boiler below 70 kW. The energy efficiency test carried out in the experimental conditions similar to the actual operation status was analyzed and compared with the current Korean efficiency test method. Four types of test modes for each boiler(Non-condensing and condensing boiler) were carried out in the condition of laboratory mode(full load, steady state) and actual operating mode. Futhermore divided into two operational status for each of these, it was applied by maximum gas consumption and consumer sales conditions. Test equipment has the function referred to gas boiler standards, such as KS or European standard EN. The equipment should be continuously measured and record the measuring factors which are the flow volume of gas and water, laboratory temperature, water flow volume for heating, return water volume after heating and quantity of the exhaust gases(CO, NO, $NO_2$). The experimental results were found that non-condensing boiler efficiency of laboratory mode is about 10% higher than that of actual mode. In case of condensing boiler, the efficiency of laboratory condition is about 20% higher than that of the actual using conditions. I suggest that the government will gradually take the efficiency test method considering the actual conditions.

  • https://doi.org/10.5855/ENERGY.2016.25.3.073 인용 PDF KSCI

Heat Flow Analysis of Inner Groove Tube for Latent Heat Exchanger in Condensing Gas Boiler (콘덴싱 가스보일러 잠열교환기의 이너 그루브 튜브 열유동 해석)

  • Yong, Kyeong-Jung;Lim, Byung-Chul;Park, Sang-Heup
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.7
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    • pp.4052-4056
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    • 2014

  • These days, household condensing gas boilers are an obligatory trend. The use of environmentally-friendly boilers that emit less pollutant, such as CO and NOx, are strongly recommended. In this paper, heat flow analysis of the additional inner groove in the tube of the secondary latent heat exchanger was studied to increase the efficiency. A 20% difference in the heat transfer area was obtained with the addition of an inner grove, which showed an increase in the amount of heat transferred. This was confirmed using three-dimensional numerical analysis. With the addition of an inner groove, the exit temperature increased by $1^{\circ}C$. This increase in exit temperature was considered to be a substantial increase in the efficiency of the condensing gas boiler.

  • https://doi.org/10.5762/KAIS.2014.15.7.4052 인용 PDF KSCI

Analysis of Mechanism for Diffusion of Incomplete Combustion Gas Released from Domestic Gas Boiler (가정용 보일러의 불완전연소가스 누출확산 메커니즘 해석)

  • Kang, Seung-Kyu;Choi, Kyung-Suhk;Yoon, Joon-Yong
    • Proceedings of the KSME Conference
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    • 2008.11b
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    • pp.2868-2873
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    • 2008

  • Carbon Monoxide(CO) poisoning accident is higher than any other gas accident in the rate of deaths/incidents. In the last five years, 36 people died and 104 were wounded because of carbon monoxide poisoning accident. Most of these CO poisoning accidents were caused by defective exhaust tube in the old gas boiler and multi-use facility. In this study, the spread of incomplete combustion gas(CO) released from leakage hole of exhaust tube was analyzed by computational flow modeling and concentration measuring test. CO gas leaked form exhaust tube in a building was highest concentrated near the ceiling and formed the circular currents along the walls. Through these experiments and simulation, the reasonable installation location of carbon monoxide alarm was made certain and suggested.

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