日本建築学会環境系論文集
Online ISSN : 1881-817X
Print ISSN : 1348-0685
ISSN-L : 1348-0685
77 巻, 681 号
選択された号の論文の12件中1~12を表示しています
  • 庄司 名奈恵, 小島 隆矢
    2012 年 77 巻 681 号 p. 829-836
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    This study examines the negative image as use prevention factor of public library. To solve this problem, two questionnaire surveys were conducted. First survey was conducted to research conscious difference between the general user and well-informed person and Second survey was conducted for library user and non-user to analyze correlation or causality between impression in library, user's experience and attitude. The results are as followings:
    1) There is a difference between the general user and well-informed person. Well-informed person doesn't feel hard in library.
    2) The hard impression of library makes non-user to avoid it.
  • 出口 満, 伊香賀 俊治, 村上 周三, 白石 靖幸, 星 旦二, 加藤 龍一, 川久保 俊, 安藤 真太朗
    2012 年 77 巻 681 号 p. 837-846
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    Population aging is accelerating in many developed countries and there are growing concerns about increasing social security costs. Given this background, as stated in the Japanese Growth Strategy, community that can sustain citizens' lifelong health and active living is required. Therefore, this study aims to develop a healthy community checklist based on citizens' consciousness and behavior survey to recognize the condition of their community and notice the risk factor of disease. Based on the answer of the respondents, the score for a community was calculated and verified the effectiveness of this tool. As the result, the relationship between overall community score and citizens' health condition was quantified. Furthermore, the result showed a significant relationship between the community environment and the personal health, even in the case of considering personal life style.
  • ―乾式二重床の重量床衝撃音レベル予測に関する研究 その1―
    黒木 拓, 大脇 雅直, 石丸 岳史, 財満 健史, 高木 直樹, 山下 恭弘
    2012 年 77 巻 681 号 p. 847-853
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    We examined the prediction formula of reduction of floor impact sound level in every hitting point, in order to raise the predictive accuracy of the heavy weight floor impact sound level which includes dry double-layered floor coverings by impedance method.
    The reduction of floor impact sound level and the impedance level rising amount of bare slab in a box-frame type laboratory in every hitting point have a linear relation. The prediction of reduction of floor impact sound level corresponded well with the actual measurement in a actual building. And the results derived from the relation showed a good correspondence.
  • 窪田 真樹, 二宮 秀與, 曽我 和弘
    2012 年 77 巻 681 号 p. 855-862
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    In the energy conservation standards for residential buildings, the standard value for annual heating / cooling load is stipulated for each territory. The division of territory is determined based on the heating degree-days, which have high correlation with heating load. This paper clarifies the effect of altitude on this area classification, and examines a new area classification that reflects the altitude at an arbitrary point. The obtained results are as follows: (1) Heating / cooling degree-days have a close correlation with latitude and altitude. (2) By utilizing the relation between ambient temperature and altitude, the heating / cooling degree-days at sea level (0 m) without the effect of altitude can be obtained. (3) On the basis of the heating / cooling degree-day at sea level, the heating / cooling degree-days at an arbitrary point can be estimated. (4) By employing the estimated values of the heating / cooling degree-days, a new area classification corresponding to the trends in annual heating / cooling load at an arbitrary point can be performed.
  • 近藤 靖史, 中島 裕史
    2012 年 77 巻 681 号 p. 863-871
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    Moving bodies make accompanying airflow and affect ventilation efficiency in several cases. For example cooking operation decreases capture efficiency of exhaust hoods, moving human bodies break thermal stratification in a displacement ventilation system and train wind diffuses dust in subway stations. When CFD is applied to such situations, the validity of CFD for a moving body should be examined. In this paper, the CFD results with a moving body were compared to the experimental data in a simple room under isothermal condition obtained by PIV and an ultrasonic anemometer. Simulated results agree with the experimental data except for some region. It can be concluded that the CFD can simulate the disturbance by moving bodies with fine mesh division and appropriate turbulence model but there exists several differences between CFD and experiments.
  • 金 勲, 田辺 新一
    2012 年 77 巻 681 号 p. 873-879
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    Using the newly developed airflow control unit (ACU), chamber performance was examined through measuring the air velocity (va) near the specimen surface and mass transfer coefficient (MTC). va and its distribution depending on fan revolutions were examined over nine points at a distance of 10mm from the specimen surface. MTC was investigated by tests with using filter papers and water vapor in the chamber installed with ACU. For MTC tests, seven conditions of fan revolution were set at less than 700rpm, and loading factor 0.11 m2/m3 was adopted to avoid saturating of humidity in the chamber instead of 2.2m2/m3 of usual emission test. As the results, va distributions were even and in a small deviation. When va ranges from 0.10 to 0.27 m/s, tested MTC were in 17.4 to 22.0m/h, while the values of JIS and previous studies in much lower levels. Chamber-tested MTCs should be much lower than those of theoretical calculation, because the given Q/A would make the potential of mass transfer decreased at the chamber test but theoretical calculation have the assumption of infinite Q. There, theoretical MTC depending on va were recalculated using the properties of dry and wet air. CFD simulations provided that steady state appeared at over L=0.44 m2/m3 at va = 0.1m/s and the MCT was 15.3m/h, which was close to the result of the chamber test at 300 rpm (much less than 0.1m/s), because the limited ventilation rate in the chamber test restrained the vapor transfer and consequently MTC. It was cleared that tested MTC always showed the higher values than JIS and theoretical ones, and could become close to other ones by compensation considering the velocity boundary layer and the loading factor.
  • ルームエアコンディショナの冷暖房COPおよびエネルギー消費量に関する研究 その3
    細井 昭憲, 三浦 尚志, 澤地 孝男, 住吉 大輔
    2012 年 77 巻 681 号 p. 881-888
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    1. The conditions that the air-conditioner changes the operation mode into the defrost cycle were clarified.
    2. Based on the typical change of COP in a defrost mode, the method to estimate the energy consumption including defrost cycles was shown.
    3. It was clarified the theoretical definition of the coefficients which correct the theoretical heat extraction based on the refrigerating cycle to the practical condition. The method to calculate the coefficients were also shown.
    4. The distribution factors of COP in practical condition were analyzed, and the accuracy of the estimating method of COP proposed in our study was verified.
  • 山口 容平, 鈴木 雄介, 山崎 政人, 下田 吉之, 村上 周三, 坊垣 和明, 松縄 堅, 亀谷 茂樹, 高口 洋人, 半澤 久, 吉野 ...
    2012 年 77 巻 681 号 p. 889-897
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    Authors gathered and investigated annual energy consumption of 4,194 retail facilities. The retail facilities were classified by the retail categories into department store, general merchandise store, grocery store, garment store, household merchandise store, home center, drag store, convenience-store, shopping center and specialized store. The average of total floor area and annual primary energy consumption per unit floor area were compared among the retail categories. Except the combination between department store and shopping center, these retail categories showed a significant difference in the total floor area and/or annual energy consumption per total floor area. This result implies that classification by retail category contributes to understand the characteristics of energy consumption.
  • シン レイ, 伊香賀 俊治
    2012 年 77 巻 681 号 p. 899-907
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    In recent years, with improvements in living standards, energy consumption and CO2 emissions of Chinese residential sector have both increased considerably. However, we do not have a clear vision of future growth in energy consumption and lack tools for evaluating the impact of energy saving measures. This paper discusses the sustainability of Chinese residential buildings from the following 3 aspects:
    1. Analyzing the future growth of energy consumption in Chinese residential buildings.
    2. Evaluating the reduction potential of CO2 emissions through the implements of various energy saving measures.
    3. Calculating the marginal abatement cost of proposed countermeasures and evaluating them from an economic perspective.
    As results, we found that efficiency policies could bring about 70% CO2 emissions reduction in maximum. Hence, most of the efficiency policies have positive effects on saving energy bills, thus the marginal abatement costs are able to be managed in a minus level.
  • 福代 和宏
    2012 年 77 巻 681 号 p. 909-916
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    Residential electricity consumption and relevant demographic factors in the urban and rural areas of Cambodia and Phnom Penh were estimated by the raw data of the Cambodia Socio-Economic Surveys (CSES) conducted in 2004 and 2009.It was found that the public power supply spreads rapidly and the median household electricity consumption increased 30% in each area between 2004 and 2009 while the median of nominal monthly household income increased 100% in the same period. Positive correlations between household size, income, and electricity consumption were also revealed by the Jonckheere-Terpstra test.
  • 池谷 直樹, 萩島 理, 谷本 潤, 田中 雄大
    2012 年 77 巻 681 号 p. 917-923
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    We have performed a series of wind-tunnel experiments to measure scalar concentration profiles over urban-like roughness arrays. The concentration measurements revealed two features of scalar distribution. First, the high concentration filed was observed in the leeward region of each roughness element. Secondly, the averaged concentration became high up to the roughness height due to the updraft along the element and the boundary layer thickness drastically reach to the height in spite of the short length of scalar source area. In addition to the concentration measurements, we determined the roughness length of scalar based on the preliminary performed comprehensive study on scalar transfer coefficients, momentum transfer coefficients and wind profiles and discussed the similarity between momentum and scalar transfer phenomena by applying the relation between the Dalton number and the roughness Reynolds number.
  • 浅深度地中熱利用の研究 (その1)
    岩澤 昭彦, 中山 茂樹
    2012 年 77 巻 681 号 p. 925-932
    発行日: 2012/11/30
    公開日: 2013/05/28
    ジャーナル フリー
    The authors investigated database on mean ground temperature above 6m depth during heating period,starting with Document of Agricultural Meteorology of Japan written in1950 and summarized mean temperature of underground 100m using the formulas of soil physics. It was confirmed that mean ground temperature above 6m depth was almost same as mean temperature of underground 100m.
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