CHP systems and renewable energy Flashcards
Simultaneous production and use of useful mechanical energy and useful thermal energy
combined heat and power
uses waste heat for many different processes such as space heating or drying
cogeneration
power generation is two-cycle electricity generation process that uses the heat from the first cycle to run a second cycle
combined- cycle
___ Cycle in cogeneration makes mechanical energy first, then residual thermal energy is used for heating
topping
__ cycle of cogeneration makes thermal energy first then residual energy is used for mechanical or electric power. Also called thermal load following
Bottoming
some small cogeneration systems are now provided with an internal inverter which makes grid connection easier and allow for the system to run during a __
blackout
__ __ driven chillers can also be defined as cogeneration
Natural Gas
In fuel recovery applications __ burn waste gases that would otherwise be flared or released directly into the atmostphere
microturbines
__ __ use a chemical reaction rather than a combustion process to produce electricity. Requires hydrogen as a fuel source.
Fuel Cells
__ __ can extract hydrogen from other source fuels such as natural gas or coal
Fuel processors
Capacity factor handles the __ of renewable energy
intermittence
= actual energy produced (MWh)
Capacity MW * Time period (hours per year)
geothermal power plants use __ resources that have both __ and __.
hydrothermal, water, heat
Geothermal is obtained by drilling wells into the earth and piping steam or water to the surface the hot water or steam powers a __ that generates electricity.
turbine
__ is organic material that comes from plants and animals.
when it is burned it is released as __.
Biomass, heat
