All Flashcards
What is a hydrogen fuel cell?
A device that combines hydrogen and oxygen to produce electricity, water, and heat.
What is an anode?
The negative electrode in a fuel cell where hydrogen gas is fed.
What is a cathode?
The positive electrode in a fuel cell where oxygen from the air enters.
What is an electrolyte?
A substance in a fuel cell that allows ions to move between the anode and cathode.
What is a PEM fuel cell?
Proton Exchange Membrane fuel cell; commonly used in vehicles and portable devices.
What is cogeneration?
The simultaneous production of both heat and electricity.
Define 'fuel cell' efficiency.
The percentage of chemical energy in the fuel that is converted into usable electricity.
What is a byproduct?
A secondary product made in the manufacture or synthesis of something else.
Define 'renewable energy'.
Energy from a source that is not depleted when used, such as solar power or wind power.
Define 'emission'.
The production and discharge of something, especially gas or radiation.
What is the effect of using hydrogen fuel cells on air quality?
Improved air quality due to the absence of harmful emissions; only water is produced.
What is the effect of high manufacturing costs on hydrogen fuel cell adoption?
High costs hinder widespread adoption due to economic barriers.
What is the effect of limited hydrogen availability on fuel cell use?
Restricts fuel cell use due to lack of infrastructure and supply.
What is the effect of hydrogen flammability on fuel cell design?
Requires stringent safety measures to prevent accidents.
What is the effect of high efficiency of fuel cells on energy consumption?
Reduces energy waste and lowers overall energy consumption.
What is the effect of using fossil fuels to produce hydrogen?
Offsets some environmental benefits due to carbon emissions from hydrogen production.
What is the effect of quiet fuel cell operation on urban environments?
Reduces noise pollution, making them suitable for residential areas.
What is the effect of using PEM fuel cells in vehicles?
Reduces reliance on fossil fuels and lowers greenhouse gas emissions from transportation.
What is the effect of developing hydrogen fuel cell technology on job creation?
Stimulates economic growth by creating new jobs in manufacturing, research, and infrastructure.
What is the effect of water being the only byproduct of hydrogen fuel cells?
Minimizes environmental pollution and reduces the impact on ecosystems.
How can investing in hydrogen production from renewable sources promote sustainability?
Reduces reliance on fossil fuels and lowers the carbon footprint of hydrogen fuel cells.
How can developing hydrogen infrastructure support sustainability?
Facilitates the widespread adoption of hydrogen fuel cells, reducing overall emissions.
How can improving fuel cell efficiency contribute to sustainability?
Reduces energy waste and lowers the demand for hydrogen fuel, conserving resources.
How can promoting the use of PEM fuel cells in vehicles advance sustainability?
Decreases reliance on gasoline and reduces greenhouse gas emissions from transportation.
How can government incentives for fuel cell adoption drive sustainability?
Encourages consumers and businesses to switch to cleaner energy alternatives.
How can using fuel cells in stationary power plants promote sustainability?
Reduces emissions from electricity generation and improves energy efficiency.
How can improving the durability of fuel cells promote sustainability?
Extends the lifespan of fuel cells, reducing waste and resource consumption.
How can using fuel cells for backup power systems support sustainability?
Provides a cleaner alternative to diesel generators, reducing air pollution.
How can supporting research into more efficient electrolytes advance sustainability?
Improves fuel cell performance and reduces energy consumption.
How can promoting public awareness of fuel cell benefits drive sustainability?
Increases adoption rates and supports the transition to cleaner energy sources.