With the rapid increase of the world energy demand and
consumption, the method and techniques to analyze, improve
and optimize energy conversion systems have to deal not only
with direct fuel exergy (energy) consumption, but also with
other resources, which have associated exergy consumptions,
and with environmental impacts, such as global warming.
A general method for energy conversion system analysis
is presented in this thesis. This method uses exergy as a
measure to compare and analyze the natural resource
consumption (both fuels and materials) and the global
warming impact of different energy conversion systems for
their life-time. The method, which adds the fuel production
exergy and material exergy into consideration, allows more
complete exergy analyses to be conducted. The global warming
impact due to the chemical emissions and impact associated
with direct exergy consumption (fuel consumption) as well as
system equipment materials consumption of the energy
conversion system are considered together in this thesis.
Based on the concept of exergy, the Total Equivalent
Resource Exergy (TERE), which includes both direct resource
exergy consumption and resource exergy needed to recover the
total equivalent global warming gases of the energy
conversion system, is proposed in this thesis. TERE uses
exergy as a criterion to compare the energy conversion
systems and providing information of how effective a system
is regarding the use of natural resources. The calculation
of TERE values for the selected energy conversion systems
indicates that the resource exergy and the environmental
impact exergy are both substantial impacts and should be
compared together. This concept of TERE can be used as the
objective function for energy system design and
optimization. / Graduation date: 1996
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/34582 |
| Date | 12 October 1995 |
| Creators | Zhang, Mingyuan |
| Contributors | Reistad, Gordon M. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
Page generated in 0.0017 seconds