Environmental Impacts of KPT Commercial Office Building, Karachi

2011 ◽  
pp. 207-218 ◽  
Author(s):  
Khursheed Ali Amur ◽  
Dost Ali Khuwaja ◽  
Khan Muhammad Brohi
Keyword(s):  
Environmental Impacts ◽  
Office Building

scholarly journals Evaluating the Economic and Environmental Impacts of Smart Management Systems for Cooling and Heating Systems in Building: Case study of Office Building in Tehran

2021 ◽  
Author(s):  
Gholamreza Heravi ◽  
Milad Rostami ◽  
Maryam Shekari
Keyword(s):  
Energy Consumption ◽  
Environmental Impacts ◽  
Energy Management ◽  
Building Energy ◽  
Office Building ◽  
Management Systems ◽  
Energy Management Systems ◽  
Building Energy Management ◽  
Operation Period

Considering the increasing rate of energy consumption and its environmental detrimental effects, as well as considering the use of non-renewable energy sources such as fossil fuels, energy management issues have become more important. Given the 40% share of the building industry's total energy consumption, as well as the 80% share of energy consumed during the operation period, attention to the areas of energy management and optimization during the operation period of the buildings can have a major impact on buildings’ energy performance. In this research, through identifying building energy management tools and studying previous studies and assessing the effects of building energy management systems, the economic and environmental impacts of using building energy management systems on the annual energy consumption in an office building in Tehran as a case study has been investigated. The results indicate a 32 percent reduction in energy consumption and a significant reduction in the release of the environmental pollutants in smart mode compared to the base mode. Moreover, considering the social costs associated with the emitted pollutants as well as the return period, it has been attempted to identify the factors contributing to the economic justification of using smart heating and cooling systems. According to the results, the use of smart energy management systems can be considered as an effective step in optimizing and managing energy consumption in the construction sector.

A Comparison of Commercial Building Retrofits Using EnergyPlus for Energy and Emissions Savings

2016 ◽  
Author(s):  
Zahra Fallahi ◽  
Amanda D. Smith
Keyword(s):  
Energy Efficiency ◽  
Environmental Impacts ◽  
Co2 Emissions ◽  
Office Building ◽  
Commercial Building ◽  
Building Energy Modeling ◽  
Electrical Grid ◽  
Modeling Software ◽  
Allowable Range ◽  
Lighting Intensity

For existing commercial buildings, structural retrofits and energy efficiency actions play an important role in providing potential energy and cost saving options to the building owner or operator. Depending on the type of modification made to the building or its operations, the environmental impacts associated with the building may also be reduced. The aim of this research is to compare three simple energy efficiency changes for a modeled commercial office building and quantify their relative impacts in terms of greenhouse gas emissions. Both direct emissions from on-site combustion and indirect emissions through electricity purchases are compared. Hourly emission factors for electricity purchases are used for calculations of CO2 emissions. These emissions factors are unique to the electrical grid in the region where electricity is purchased, and they vary both diurnally and seasonally. In this paper, the selected energy-saving retrofits and energy efficiency actions are: adjusting lighting intensity, adding insulation, and changing the allowable range of temperatures in the buildings HVAC control scheme. Large and small office building prototype models are simulated using the U.S. Department of Energy’s open source building energy modeling software, EnergyPlus. Finally, the relative environmental impacts based on the type of energy modification and the size of the office building is presented in terms of CO2 emissions.

Study on High-Performance Office Buildings

2012 ◽  
Vol 193-194 ◽  
pp. 1025-1028
Author(s):  
Juan Ren ◽  
Yu Liu
Keyword(s):  
Environmental Impacts ◽  
Economic Efficiency ◽  
High Performance ◽  
Design Principles ◽  
Office Buildings ◽  
Office Building ◽  
Building Industry ◽  
Building Performance ◽  
Sustainable Building ◽  
Global Context

Since environmental impacts, economic efficiency and human healthy are crucial issues in the global context now, an increasing professional concern and interest in building performance have emerged in sustainable building field. This article aims to introduce high performance concept into office building industry. Based on demonstrating high-performance building (HPB) and distinguishing office building (OB) features, this article proposes its own high-performance office building (HPOB) definition. Furthermore, the article also identifies the benefits and discusses design principles of HPOB in order to promote HPOB application positively.

Hepatocyte Alterations in Guinea Pigs FED Polychlorinated Biphenyls (PCBs), Dibenzodioxins (PCDD), AND DIBENZOFURANS (PCDF)

1982 ◽  
Vol 40 ◽  
pp. 56-57
Author(s):  
J. N. Turner ◽  
D. N. Collins
Keyword(s):  
Guinea Pigs ◽  
Room Temperature ◽  
Dose Group ◽  
Methyl Cellulose ◽  
Uranyl Acetate ◽  
Target Organ ◽  
Office Building ◽  
Lead Citrate ◽  
Control Groups ◽  
Cooling Fluid

A fire involving an electric service transformer and its cooling fluid, a mixture of PCBs and chlorinated benzenes, contaminated an office building with a fine soot. Chemical analysis showed PCDDs and PCDFs including the highly toxic tetra isomers. Guinea pigs were chosen as an experimental animal to test the soot's toxicity because of their sensitivity to these compounds, and the liver was examined because it is a target organ. The soot was suspended in 0.75% methyl cellulose and administered in a single dose by gavage at levels of 1,10,100, and 500mgm soot/kgm body weight. Each dose group was composed of 6 males and 6 females. Control groups included 12 (6 male, 6 female) animals fed activated carbon in methyl cellulose, 6 males fed methyl cellulose, and 16 males and 10 females untreated. The guinea pigs were sacrificed at 42 days by suffocation in CO2. Liver samples were immediately immersed and minced in 2% gluteraldehyde in cacadylate buffer at pH 7.4 and 4°C. After overnight fixation, samples were postfixed in 1% OsO4 in cacodylate for 1 hr at room temperature, embedded in epon, sectioned and stained with uranyl acetate and lead citrate.

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