• 제목/요약/키워드: 동적 열부하계산

검색결과 4건 처리시간 0.02초

부산 신항만지역 환경친화적 에너지 수급을 위한 동적 열부하계산 (Dynamic Peak Load Calculation for Friendly Environment Energy Supply and Demand Plan at the Newport Area in Busan)

  • 이정재;이선애;조용수;도근영
    • 한국항해항만학회지
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    • 제28권3호
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    • pp.269-276
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    • 2004
  • 매립지는 도심부 혹은 내륙지역과는 달리 독특한 지형적 자연환경 특성을 가지고 있으며 내륙지역에 비해 낫은 기온, 강한 바람, 과다한 일사조건, 해염을 포함한 습기라는 기후적 악조건을 가지고 있다. 따라서 워터프런트를 개발할 경우는 매립에 따른 기후환경 특성을 상세하게 파악하여 적합한 개발 및 체계적인 유지관리가 필요하다. 워터프런트의 지형적, 기후적 특성을 충분히 검토하지 않고 개발을 추진한 경우 기후환경의 악화와 더불어 시설의 하자발생 및 부정확한 설비용량 산정에 따른 에너지비용 및 유지관리비용의 상승이 초래될 수 있다. 본 연구에서는 현재 매립ㆍ개발이 진행되고 있는 부산 신항만지역의 환경친화적 에너지 수급계획을 위하여 신항만지역의 표준기상데이터를 작성하고, 이를 바탕으로 현재 계획되어 있는 상업ㆍ업무시설과 주거시설을 대상으로 동적 최대 열부하계산을 실시하여 신항만지역 배후도시의 설비용량 산정을 위한 기초자료를 제시하였다.

한국형 아파트의 난방에너지 분석 3 :실내설정조건의 영향 (Analysis of Heating Energy in a Korean-Style Apartment Building 3 : The Effect of Room Condition Settings)

  • 박유원;유호선;홍희기
    • 설비공학논문집
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    • 제17권8호
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    • pp.722-728
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    • 2005
  • The present paper deals with heating energy estimation in Korean-style apartments, paying special attention to the effect of room condition settings. Two types of heating modes are considered: continuous single-zone and scheduled multi-zone. In the latter, zones during unoccupied periods remain unconditioned. Also analyzed are sensitivities in heating energy with respect to the air change rate and the set temperature. The energy use is estimated with TRNSYS 15, a dynamic load calculation program. Heating energy for the actual residential condition (1.0 ACH and $24^{\circ}C$) appears to be nearly the same as that for a typical design standard (1.5 ACH and $20^{\circ}C$). The air change rate affects heating energy as sensitive]y as the set temperature. For all the simulated cases, the scheduled multi-zone heating mode is more energy-efficient than the continuous single-zone. Heating energy depends appreciably on the shading factor. It is expected that considerable heating energy for apartment houses can be saved by employing a multi-zone mode along with appropriate control devices.

강제환기가 적용된 시험공간에서 냉난방부하의 시뮬레이션 및 실증실험 (Simulation and Verification Experiment of Cooling and Heating Load for a Test Space with Forced Ventilation)

  • 김동혁;홍희기;유호선;김욱중
    • 설비공학논문집
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    • 제18권12호
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    • pp.947-954
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    • 2006
  • Building energy consumption according to the ventilation has been considered to be an important subject. The purpose of this study is to investigate the cooling and heating loads in a test space with a forced ventilating system. In the test space, on/off controlled air-conditioning and forced ventilating facility were operated between 8 : 30 to 21 : 00 during 4 days and some important data like temperatures and energy consumption were measured to obtain actual thermal loads. The simulation was carried out in a mode of temperature level control using a TRNSYS 15.3 with a precisely measured air change amount and performance data of air-conditioner. Heating load and cooling load including sensible and latent were compared between by experiment and by simulation. Both of thermal loads associated with ventilation show a close agreement within an engineering tolerance.

간이 에너지 계산법과 동적 열부하 계산법의 비교 연구 (A Comparison of the ASHRAE Simplified Energy Analysis Procedure with the HASP/ACLD Results)

  • 김두천;최진희;원영수
    • 설비공학논문집
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    • 제1권3호
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    • pp.210-218
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    • 1989
  • The ASHRAE Simplified Energy Analysis Procedure using the Modified Bin Method(SEAP) is compared with the hourly calculation program, HASP/ACLD. The HASP/ACLD model office building with VAV system in Seoul is used as the basis for comparison. And the parameters considered are glass to wall area ratio and internal heat gains. The results show that SEAP predictions of annual energy use agree with HASP/ACLD predictions within 5% deviation. But there is a large difference in cooling and heating energy as glass to wall area ratio is varied. The SEAP cooling energy is 65-85% and the heating energy is 104-160% of the HASP/ACLD results. This is probably due to the solar heat gain data. the data related to the SEAP must be developed prior to use it.

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