A Study on Effects of LED Lamps on Air-conditioning Load and Energy Consumption in Business-related Building

DOI
  • MIYAOKA Yoichi
    <sup> </sup>Energy Applications R&D Center, Chubu Electric power Co., Inc.
  • NAKAYAMA Hiroshi
    <sup> </sup>Energy Applications R&D Center, Chubu Electric power Co., Inc.
  • TERANISHI Yuta
    Department of Mechanical Engineering, Graduate School of Engineering, Mie University
  • YOSHIZAWA Nozomu
    Department of Architecture and Building Engineering, Tokyo University of Science
  • HIROTA Masafumi
    Department of Mechanical Engineering, Graduate School of Engineering, Mie University

Bibliographic Information

Other Title
  • LED 照明が業務用建物の空調負荷とエネルギー消費に与える影響
  • －第1 報：室内方向への放熱量の計測と空調負荷の推定－
  • － 1st Report: Measurements of Heat Emission of Lamps to the Room Direction and Estimation of Air-conditioning Load in Building －

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Description

In this study, at first, the thermal characteristics of conventional lamps such as fluorescent lamps and energy-saving lamps such as LED and CCFL were investigated experimentally to examine their effect on the air-conditioning load in business-related buildings. Then, based on the experimental results, air-conditioning loads in a mass merchandizing store with conventional fluorescent lamps or LED lamps were obtained by numerical simulations using the software “BEST.” In case of the downlight-type lighting system, the fraction of heat emission of a lamp toward the room direction to its electricity consumption was 18 - 28% in both the conventional fluorescent lamps and energy-saving LED lamps. In the straight-tube type lighting system, the fraction of heat emission was about 50% in both fluorescent lamps and LED lamps. It was found that, by replacing the fluorescent lamps with LED lamps in the store, the annual cooling load decreases while the annual heating load increases, and the maximum air-conditioning load can appear in the heating season even in buildings with large internal heat generations. This suggests the necessity of revised air-conditioning load models for buildings with energy-saving lamps.

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Details 詳細情報について

  • CRID
    1390282679643091328
  • NII Article ID
    130006847322
  • DOI
    10.11322/tjsrae.16-01_oa
  • ISSN
    2185789X
    13444905
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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