Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Production Efficiency01:01

Production Efficiency

Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
Sustainable Development01:43

Sustainable Development

As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
Global Regulatory Systems01:28

Global Regulatory Systems

Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
Trophic Efficiency00:46

Trophic Efficiency

Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Performance enhancement of solar air heater using V baffles.

Scientific reports·2025
Same author

An event triggered control scheme for enhanced production of Escherichia coli and biomass concentration during fed-batch cultivation.

Heliyon·2024
Same author

Effect of green fuel and green lubricant with metallic nanoparticles on emissions of HC, CO, NO<sub>x</sub>, and smoke for a compression ignition engine.

Environmental science and pollution research international·2023
Same author

Energy, Exergy, Exergoeconomic and Exergoenvironmental Impact Analyses and Optimization of Various Geothermal Power Cycle Configurations.

Entropy (Basel, Switzerland)·2021
Same author

Energy Sustainability with a Focus on Environmental Perspectives.

Earth systems and environment·2021
Same author

Combustion, performance, and emissions of a compression ignition engine using Pongamia biodiesel and bioethanol.

Environmental science and pollution research international·2019

Related Experiment Videos

Assessing global resource utilization efficiency in the industrial sector.

Marc A Rosen1

  • 1Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, Canada L1H 7K4. Marc.Rosen@uoit.ca

The Science of the Total Environment
|December 14, 2012
PubMed
Summary

Exergy analysis reveals the global industrial sector

Keywords:
EfficiencyEnergyExergyGlobalIndustrialResource

Related Experiment Videos

Area of Science:

  • Thermodynamics
  • Industrial Ecology
  • Energy Systems Analysis

Background:

  • Designing efficient energy systems faces economic and environmental challenges.
  • Understanding efficiency limits is crucial for identifying improvement margins.
  • Traditional energy analysis alone is insufficient for determining efficiency limits.

Purpose of the Study:

  • To assess the efficiency of global resource use in the industrial sector.
  • To compare energy and exergy analysis methods for evaluating industrial efficiency.
  • To facilitate the implementation of rational improvement options for industrial energy use.

Main Methods:

  • Application of both energy and exergy analysis methods to the global industrial sector.
  • Development of global energy and exergy flow diagrams for the industrial sector.
  • Evaluation of overall efficiencies using both energy and exergy metrics.

Main Results:

  • Overall industrial sector efficiency is 51% based on energy analysis.
  • Overall industrial sector efficiency is 30% based on exergy analysis.
  • Exergy analysis indicates significantly lower efficiency and a larger improvement margin than energy analysis.

Conclusions:

  • Exergy analysis provides a more realistic assessment of energy use efficiency in the industrial sector.
  • A substantial margin for improvement exists in the global industrial sector from an exergy perspective.
  • Findings support prioritizing improvements based on exergy analysis for more effective resource utilization.