Faculty Profiles - Daisuke Narumi

Papers - Daisuke Narumi

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EFFECTS OF INCREASED URBAN TEMPERATURE ON THE CONCENTRATION OF PHOTOCHEMICAL OXIDANTS Reviewed

NARUMI Daisuke, SAKAGUCHI Katsutoshi, KONDO Akira, SHIMODA Yoshiyuki, MIZUNO Minoru

AIJ journal of Environment 72 ( 612 ) 89 - 96 2007.2

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Architectural Institute of Japan

In this paper, we investigates to reproduce the current level of photochemical oxidants in the Kinki district. The effect of changes in temperature and VOCs emission rates on the concentration of photochemical oxidants was investigated. As a result, the analysis of the effects of an increase in temperature on the concentration of photochemical oxidants showed that the oxidant concentration increased by a maximum of 5.3ppb when the temperature increased by 1 degree Celsius. In addition, it was shown that an increase in vegetation-derived VOCs had twice the effect as the acceleration of photochemical reactions caused by increasing the temperature. Furthermore, it was suggested that vegetation-derived VOCs have a substantial influence on the oxidant concentration.

DOI： 10.3130/aije.72.89_1

Studies on the Effects of Improving the Thermal Environment around the Outdoor Units of Air-Conditioning System : Part1: Measurement Survey on the Short-Circuit Phenomenon around the Outdoor Units of Air-Conditioning System Reviewed

NARUMI Daisuke, TANAKA Kitoshi, SHIMODA Yoshiyuki, MIZUNO Minoru, JINNO Yukihiro

Report of Hearting,Air-Conditioning and Sanitary Engineers of Japan 32 ( 118 ) 19 - 28 2007.1

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Society of Hearting,Air-Conditioning and Sanitary Engineers of Japan

This study investigates from the current understanding of the short-circuit phenomenon and proposed countermeasures, to investigate the effects of the short-circuit phenomenon on energy consumption based on a measurement survey against existing buildings and a computational fluid dynamics (CFD) analysis against virtual buildings with simple shapes. This paper reviews the current knowledge of the short-circuit phenomenon, reports the results of measurement survey against air-cooled air-conditioners with an outdoor unit, the quantitative evaluation of the effects of wind on the magnitude of the phenomenon, and the effects of the phenomenon on the energy consumption of air-conditioners. As a result of this study, the short-circuit phenomenon occurred in all the outdoor units and on average caused an increase in intake temperature of 3 degrees Celsius to 4 degrees Celsius in the daytime. It was assumed that the greatest effects on the range of intake temperatures were due to differences in wind and the location of the outdoor unit. The increase in intake temperature resulted in an increase of a little more than 3% on average in the power consumption of air-conditioning units during the measurement period. However, when unit-to-unit differences were examined, some units were subject to about a 15% increase in power consumption.

DOI： 10.18948/shase.32.118_19

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Development of an Environmental Thermal Load Evaluation System for the Purpose of Mitigating Urban Thermal Environment : Part1: Effects of Differences in Environmental Thermal Load Discharge Conditions on Temperature Change near the Ground Surface Reviewed

NARUMI Daisuke, HABARA Katsuya, KONDO Akira, SHIMODA Yoshiyuki, MIZUNO Minoru

Report of Hearting,Air-Conditioning and Sanitary Engineers of Japan 31 ( 117 ) 11 - 20 2006.12

Comparative evaluation of the thermal environment between bare and grass ground located in a residential area Reviewed

NARUMI Daisuke, YOSHIDA Atsumasa, NABESHIMA Minako, TAKEBAYASHI Hideki

Papers on environmental information science 20 1 - 6 2006.11

Verification of Residential Energy End-Use Model at City Scale and Effect of Outdoor Air Temperature Reviewed

SHIMODA Yoshiyuki, NAKAO Toshitaka, NARUMI Daisuke, HABARA Hiromi, MIZUNO Minoru, TSUJI Kiichiro

Energy and Resources 27 ( 6 ) 431 - 437 2006.11

Effects of anthropogenic waste heat upon urban thermal environment in cities

NARUMI Daisuke

Journal of Environmental Conservation Engineering 35 ( 7 ) 485 - 490 2006.7

Environmental Impact of Urban Heat Island -Cause-effect chain and impact on energy consumption- Reviewed

Yoshiyuki SHIMODA, Daisuke NARUMI, Minoru MIZUNO

6th International Conference on Urban Climate CD - ROM 2006.6

Change of photochemical oxidant concentration by increase of VOCs emission from vegetations due to global warming Reviewed

A. Kondo, A. Kaga, Y. Shimoda, Y. Inoue, D. Narumi, H. Bao, T. Machimura, M. Tada, K. Sakaguchi

AIR POLLUTION XIV 86 447 - + 2006

Effects of the Urban Heat Island Phenomena upon the Urban Residents' Consciousness and Living Conditions in Osaka Prefecture Reviewed

NARUMI DaisukemMIZUNO Minoru, SHIMODA Yoshiyuki

Papers on environmental information science 19 ( 19 ) 13 - 18 2005.11

Evaluation on the Ability of Roofing Unit Covered with Greens in Mitigating Outdoor Thermal Environment and Reducing Energy Consumption for Air-Conditioning System Reviewed

MATSUSHITA Isao, HATANO Shinji, NARUMI Daisuke

Papers on environmental information science 19 ( 19 ) 117 - 122 2005.11

Increase of photochemical oxidant concentration by global warming considering VOCs emission from trees Reviewed

Hai BAO, Akira KONDO, Akikazu KAGA, Yoshio INOUE, Yoshiyuki SHIMODA, Daisuke NARUMI, Takashi MACHIMURA, Masaharu TADA, Katsutoshi SAKAGUCHI

International Conference on Research Highlights and Vanguard Technology on Environmental Engineering in Agricultural Systems CD - ROM 2005.9

Environmental Impact of Urban Heat Island Phenomena -Cause-effect chain and evaluation in Osaka City- Reviewed

Yoshiyuki Shimoda, Daisuke Narumi, Minoru Mizuno

Journal of Life Cycle Assessment Japan 1 ( 2 ) 144 - 148 2005.7

A STUDY ON DETERMINANTS OF AIR CONDITIONING ON/OFF CONTROL IN DWELLINGS BASED ON SURVEY Reviewed

HABARA Hiromi, NARUMI Daisuke, SHIMODA Yoshiyuki, MIZUNO Minoru

Journal of Environmental Engineering (Transactions of AIJ) 70 ( 589 ) 83 - 90 2005.3

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Architectural Institute of Japan

In simulating heating and cooling loads of dwellings, influence of occupant indoor thermal environment control behavior on ON/OFF of air conditioner is an important parameter. We surveyed the usage of air conditioner in living rooms and bedrooms to study the relationship between thermal environment and the occurrance of air conditioner ON/OFF control. The results are as follow: (1) The average indoor temperature at the time of ON control is about 30.9℃. (2) It is supposed that occupants customarily switch on air conditioner in the morning and before night time even when it is slightly hot but within the endurance level, while they spare air conditioner during daytime and evening when the number of occupants decreases.(3) At night, occupants require high quality indoor thermal environment and switch on air conditioner customarily. (4) When the setting temperature of air conditioner is 1℃ higher, the indoor temperature at the time of ON control is observed to raise by about 1-2℃. (5) OFF control depends more on life schedule compared to thermal environment.

DOI： 10.3130/aije.70.83_1

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Other Link： http://www.aij.or.jp/paper/detail.html?productId=17375

An occupant indoor thermal environment control behavior model to estimate residential cooling energy consumption Reviewed

H Habara, D Narumi, Y Shimoda, M Mizuno

INDOOR AIR 2005: PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON INDOOR AIR QUALITY AND CLIMATE, VOLS 1-5 1179 - 1183 2005

A Thermal Environment Control Behavior Model in Estimating Air Conditioning Energy Consumption in Residential Houses Reviewed

HABARA Hiromi, NARUMI Daisuke, SHIMODA Yoshiyuki, MIZUNO Minoru

Journal of human and living environment 11 ( 2 ) 83 - 88 2004.11

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Human-Environment System

We surveyed the usage of air conditioner in living rooms and bedrooms to study the relationship between thermal environment and the occurrence of air conditioner On control. Then, a thermal environment control behavior model was developed with the survey results. Moreover, it was incorporated into the model we proposed before to estimate air conditioning energy consumption with the influence of cross ventilation. Finally, we studied the difference between the results calculated using typical method and our method. The results are as follow: (1) The average temperature at the time of On control in the morning and before bedtime is about 1.2℃ lower than that of daytime and evening during cooling season, while in the morning it is about 2.5℃ lower than that of daytime, evening and before bedtime during heating season. (2) The average temperature at the time of On control at night is about 1.0℃ lower than that in the morning and before bedtime and about 2.0℃ lower than that of daytime and evening during cooling season. (3) Our method estimates air conditioning duration to be about 20% less and air conditioning energy consumption to be about 8% less compared to typical method.

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Environmental Impact of Urban Heat Island Phenomena Reviewed

Yoshiyuki Shimoda, Daisuke Narumi, Minoru Mizuno

Proceedings of the 6th International Conference on Ecobalance CD - ROM 2004.10

DEVELOPMENT OF A METHOD TO ESTIMATE INDOOR THERMAL CONDITION AND AIR CONDITIONING ENERGY CONSUMPTION IN RESIDENTIAL HOUSE USING NATURAL VENTILATION Reviewed

HABARA Hiromi, NARUMI Daisuke, KOBAYASHI Seiji, SHIMODA Yoshiyuki, MIZUNO Minoru

AIJ journal of Environment 69 ( 582 ) 107 - 114 2004.8

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Architectural Institute of Japan

In this paper, the relation between utilization of air conditioner and indoor thermal environment was examined, and occupants' indoor thermal environment control behavior was modelized. Besides, a method to estimate indoor thermal environment and air conditioning energy consumption in a residential house with both natural ventilation and air conditioner was developed. By applying this method to a standard house model, the effects of natural ventilation on indoor thermal condition and air conditioning energy consumption in Osaka were grasped. The results are as follows: (1) When air conditioner was turned on, average indoor SET^* was about 19℃ in heating season and 27℃ in cooling season. Therefore, agreeable thermal environment in room without air conditioning is between 19℃ and 27℃ by SET^*. (2) It is clear that the method developed in this paper is able to estimate indoor thermal environment and air conditioning energy consumption with reasonable accuracy. (3) Utilization of fan enables air conditioning energy consumption at living room to be reduced by about 35 %.

DOI： 10.3130/aije.69.107_2

EVALUATION METHOD FOR ENERGY CONSERVATION WITH PREDICTING ENERGY BASELINE CONSUMED IN OFFICE BUILDING Reviewed

TERANO Masaaki, KURIBAYASHI Haruki, MURAKAMI Masafumi, FUJIWARA Yukari, SOGO Tomoya, NARUMI Daisuke, SHIMODA Yoshiyuki, MIZUNO Minoru

AIJ journal of technology and design 19 ( 19 ) 203 - 208 2004.6

Development of a Method to Estimate Indoor Climate and Air Conditioning Energy Consumption in Residential House Considering the Influence of Cross Ventilation Reviewed

Hiromi HABARA, Daisuke NARUMI, Yoshiyuki SHIMODA, Minoru MIZUNO

Passive and Low Energy Architecture 19 - 22 2004

Estimation of Energy Flow in Central Business District and Potential of Improvement in Environmental Impact Reviewed

SHIMODA Yoshiyuki, TAKAHARA Yosuke, NARUMI Daisuke, MIZUNO Minoru

Journal of AIJ 1 ( 1 ) 93 - 99 2003.2

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Architectural Institute of Japan

The energy flow that consists of inflow, conversion, consumption and discharge of energy is estimated for a central business district of Osaka City by summing up each building's energy flow. The estimated energy flow is evaluated from the viewpoint of environmental impacts such as heat island, global warming and local/global atmospheric environment. Changes of environmental impacts by various measures such as combined heat and power, energy saving of office equipments, insulation and river water source heat pump were also evaluated.

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