A rational exergy management model for curbing building CO2 emissions

Date

2007-01-01

Author

Kılkış, Şiir

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

127
views

0
downloads

A rational exergy management model was developed, which establishes a common metric and provides a tool for matching the exergy of energy sources with different applications in the built environment for global sustainability. In order to develop and evaluate this model, first a base case was defined, which involves a building using a natural gas boiler for comfort heating and receiving electricity from a remote thermal power plant. For the base case, the rational exergy management efficiency, which is a measure of how much the supply and demand exergies match, is only 4%. In order to analyze the impact of increasing the rational exergy efficiency on carbon mitigation relative to the base case, three exergy and environment aware cases were considered. These cases were: the same building thermally linked to the power plant through a district energy system (Case One), the same building with a micro CHP using a natural gas internal combustion engine (Case Two), and the same building with a renewable energy driven electric power generator and a ground-source heat pump (Case Three). A detailed analysis of the carbon reduction potential of the three cases revealed that it is possible to realize a new CO2 reducing wedge in addition to the seven wedges that have already been identified by the Carbon Mitigation Initiative (CMI). Calculations show that Case Three may reduce the global emissions to about 4 Gton CO2/year by the year 2055 from the current value of 7 Gton CO2/year Therefore, the eighth wedge may not only help to stabilize the current levels of emissions but also decrease it below the current level. This paper explains the rational exergy management model (REMM) and its emission projections and describes the three cases in detail. Results indicate the importance of rational exergy management for global sustainability and for second generation green buildings and show that this rational exergy metric can manage a robust roadmap to curb CO2 emissions from buildings.

URI

https://hdl.handle.net/11511/94695

Conference Name

Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

A model for long-term global air quality prediction and development of efficient control strategies in Turkey Kumbaroglu, GS (1997-10-16) This paper presents an environmental model which differentiates fuel consumption by sectoral use and allows for the reduction of emissions by coupling different emission control technologies to energy conversion and end-use activities. The model can be coupled to any energy model for forecasting air pollutant emissions and developing efficient emission control strategies. An energy-economy module has been integrated into the model and an equilibrium solution for the three-component model is obtained by util...
A theoretical framework for comprehensive modeling of steadily fed evaporating droplets and the validity of common assumptions Akkus, Yigit; ÇETİN, BARBAROS; Dursunkaya, Zafer (Elsevier BV, 2020-12-01) A theoretical framework is established to model the evaporation from continuously fed droplets, promising tools in the thermal management of high heat flux electronics. Using the framework, a comprehensive model is developed for a hemispherical water droplet resting on a heated flat substrate incorporating all of the relevant transport mechanisms: buoyant and thermocapillary convection inside the droplet and diffusive and convective transport of vapor in the gas domain. At the interface, mass, momentum, and...
Comparison of prognostic and diagnostic surface flux modeling approaches over the Nile River basin Yılmaz, Mustafa Tuğrul; Zaitchik, Ben; Hain, Chris R.; Crow, Wade T.; Ozdogan, Mutlu; Chun, Jong Ahn; Evans, Jason (American Geophysical Union (AGU), 2014-01-01) Regional evapotranspiration (ET) can be estimated using diagnostic remote sensing models, generally based on principles of energy balance closure, or with spatially distributed prognostic models that simultaneously balance both energy and water budgets over landscapes using predictive equations for land surface temperature and moisture states. Each modeling approach has complementary advantages and disadvantages, and in combination they can be used to obtain more accurate ET estimates over a variety of land...
A stochastic approach in reserve estimation Kök, Mustafa Verşan (Informa UK Limited, 2006-12-01) Geostatistics and more especially stochastic modeling of reservoir heterogeneities are being increasingly considered by reservoir analysts and engineers for their potential in generating more accurate reservoir models together with usable measures of spatial uncertainty. Geostatistics provides a probabilistic framework and a toolbox for data analysis with an early integration of information. The uncertainty about the spatial distribution of critical reservoir parameters is modeled and transferred all the wa...
A new time-domain boundary element formulation for generalized models of viscoelasticity Akay, Ahmet Arda; Gürses, Ercan; Göktepe, Serdar (2023-05-01) The contribution is concerned with the novel algorithmic formulation for generalized models of viscoelasticity under quasi-static conditions within the framework of the boundary element method (BEM). The proposed update algorithm is constructed for a generic rheological model of linear viscoelasticity that can either be straightforwardly simplified to recover the basic Kelvin and Maxwell models or readily furthered towards the generalized models of viscoelasticity through the serial or parallel extensions. ...

Citation Formats

Ş. Kılkış, “A rational exergy management model for curbing building CO2 emissions,” California, Amerika Birleşik Devletleri, 2007, vol. 113, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/94695.