Energy/Co_2 Intensities Based on 2000 Input/Output Table and Evaluation of Building

Yokoyama, Keizo; Yokoo, Noriyoshi; Oka, Teruaki

doi:10.3130/aije.70.75_1

Cited by 6 publications

(3 citation statements)

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“…Table 4 shows CO 2 emissions in the construction/civil engineering sector and CO 2 emissions resulting from the operation of family-/business-purpose facilities. Compared with CO 2 emissions in 2000 [3], it was found that the ratio of CO 2 emissions in the construction industry to those from all of Japan decreased from 6.4% to 5.64% and, in the case of civil engineering, such a ratio decreased from 8.0% to 6.11%. The operation of family-purpose facilities witnessed an increase from 12.7% to 13.96% and the operation of business-purpose facilities saw an increase from 15.0% to 18.43%.…”

Section: Comparison With Japanese Co 2 Emissionsmentioning

confidence: 92%

“…This paper analyzes this IO (input/output) table and calculates CO 2 emissions and fossil fuel consumption by industrial sector resulting from 1 million yen's worth of production. The authors analyzed every 5-year inter-industrial relationship up to 2000 from the 1960 input/output table and identified a change over the years in the intensities of carbon dioxide [2,3], thereby indicating that the reduction of CO 2 emissions caused by construction is greatly influenced by the intensities of carbon dioxide subject to a change in the entire industrial structure of Japan, despite the indicated effectiveness of a design contrivance. Thus, based on the idea that the latest intensities are indispensable for design, this paper was brought to a conclusion.…”

Section: Introductionmentioning

confidence: 99%

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Embodied Energy and CO2 Associated with Buildings by Using Input and Output Table in Japan

Yokoo

Oka²,

Yokoyama³

et al. 2015

JCEA

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In July 2009, the 2005 basic Japanese input/output table was publicized together with its physical transaction table. This research paper analyzed the 2005 IO (input/output) table to create building industry-related intensities and, at the same time, compared the building industry with industries at large for distribution margins and transportation. The analysis of distribution margins separately for middle and purchaser margins found that middle margins in the building industry are minor at 35% of the averages for all industries, while purchaser margins are sizable at 1.8 times, proving that it is an industry for which local production for local consumption is quite effective. CO 2 emissions resulting from transportation in the building industry were calculated and concisely characterized. Although the ratio of transportation CO 2 emissions to total CO 2 emissions in each industry finds almost no difference between general industries and the building industry, transportation CO 2 emissions per production value are two to three times heavier than those from general industries to be justified as a transportation-intensive industry.

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Section: Comparison With Japanese Co 2 Emissionsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Embodied Energy and CO2 Associated with Buildings by Using Input and Output Table in Japan

Yokoo

Oka²,

Yokoyama³

et al. 2015

JCEA

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show abstract

“…Fig. 3 shows the fraction of CO 2 emissions in Japan [8]. In Japan, 5% and 14% of total CO 2 emissions are due to building construction and the operation of residential houses, respectively.…”

Section: Fraction Of Embodied and Operation Energy And Co 2 Emissionsmentioning

confidence: 99%

Comparison of Embodied Energy/CO2 of Office Buildings in China and Japan

Yokoo

Oka²,

Yokoyama³

et al. 2015

JCEA

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The embodied energy/CO 2 of buildings in China and Japan, which reflects the characteristic industrial efficiency of building materials, is described in this paper. The energy consumption and CO 2 intensities for the dominant materials used in buildings are derived from the energy consumption in factories, and the energy consumption to produce equipment is derived from IO (input/output) analysis in order to compare the embodied energy/CO 2 for buildings between China and Japan based on the same estimation method. Although the energy consumption of structures in China is two to three times greater than in Japan, the interior finish and air conditioning equipment, for example, are simpler and smaller. As a result, the embodied energy/CO 2 of office buildings in China is only 10% to 20% greater than that of Japanese office buildings. Thus, the embodied energy/CO 2 of buildings depends on both industrial efficiencies and building design trends of the country.

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A Study on the Transition of Materials About the Energy Consumption and Co2 Emission Associated With Building Construction

Kawazu¹,

Yokoo²,

Oka³

et al. 2008

Nihon Kenchiku Gakkai Kankyokei Ronbunshu

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Energy/Co_2 Intensities Based on 2000 Input/Output Table and Evaluation of Building

Cited by 6 publications

References 0 publications

Embodied Energy and CO2 Associated with Buildings by Using Input and Output Table in Japan

Embodied Energy and CO2 Associated with Buildings by Using Input and Output Table in Japan

Comparison of Embodied Energy/CO2 of Office Buildings in China and Japan

A Study on the Transition of Materials About the Energy Consumption and Co2 Emission Associated With Building Construction

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