Resource efficiency with useful heat or electricity: Difference between revisions
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|[[Resurseffektivitet med nytta värme eller el|SE]]| | |[[Resurseffektivitet med nytta värme eller el|SE]]| | ||
One way to determine which energy source that is best for the environment is to assess the benefit in the form of heat or electricity a power source can provide. The tables below can be read as 1 unit of fuel provides | One way to determine which energy source that is best for the environment is to assess the benefit in the form of heat or electricity a power source can provide. The tables below can be read as 1 unit of fuel provides X heating and Y electricity. Higher number is better. | ||
Note that "useful heat out" greater than 100 means that the end result is more heat energy than if the fuel were burned directly for heating. | Note that "useful heat out" greater than 100 means that the end result is more heat energy than if the fuel were burned directly for heating. | ||
Revision as of 20:40, 1 September 2022
|SE|
One way to determine which energy source that is best for the environment is to assess the benefit in the form of heat or electricity a power source can provide. The tables below can be read as 1 unit of fuel provides X heating and Y electricity. Higher number is better.
Note that "useful heat out" greater than 100 means that the end result is more heat energy than if the fuel were burned directly for heating.
All types of power sources
| Power source 100% in |
% Electricity out | % Heat out | % Useful heat out with HP COP 4 |
Net effect electricity contribution by % of fuel energy in |
|---|---|---|---|---|
| Direct combustion for heating (wood burning, pellets, oil, gas) |
0 | 100 | 100 | 25 |
| Internal combustion engine with gas/liquid fuel (Gen set) |
35 | 0 | 140 | 35 |
| Solid fuel in condensation power plant | 40 | 0 | 160 | 40 |
| Combustion engine with gas/liquid fuel with district heating | 35 | 65 | 205 | 51 |
| Solid fuel in cogeneration plants | 40 | 60 | 220 | 55 |
| Gas/liquid fuel in gas combined cycle power plant without district heating | 60 | 0 | 240 | 60 |
| Gas/liquid fuel in gas combined heat and power plants with district heating | 60 | 40 | 280 | 70 |
Electric car compared to ICE petrol car
An electric car cuts carbon dioxide emissions in half compared to a petrol car if the electricity is produced with petrol.
If gasoline is used in a car engine, a maximum of 30% can become electricity = kinetic energy under optimal conditions.
If gasoline is used to produce electricity in a gas combined cycle power plant with a combined cycle, you can get about 60% electricity = kinetic energy.
Solid fuels
| Power source 100% in |
% Electricity out | % Heat out | % Useful heat out with HP COP 4 |
Net effect electricity contribution by % of fuel energy in |
|---|---|---|---|---|
| Direct combustion for heat (wood burning, pellets, oil, gas) |
0 | 100 | 100 | 25 |
| Solid fuel in condensation power plant | 40 | 0 | 160 | 40 |
| Solid fuel in cogeneration plants | 40 | 60 | 220 | 55 |
Gas and liquid fuels
| Power source 100% in |
% Electricity out | % Heat out | % Useful heat out with HP COP 4 |
Net effect electricity contribution by % of fuel energy in |
|---|---|---|---|---|
| Direct combustion for heat (wood burning, pellets, oil, gas) |
0 | 100 | 100 | 25 |
| Internal combustion engine with gas/liquid fuel (Gen set) |
35 | 0 | 140 | 35 |
| Combustion engine with gas/liquid fuel with district heating | 35 | 65 | 205 | 51 |
| Gas/liquid fuel in gas combined cycle power plant without district heating | 60 | 0 | 240 | 60 |
| Gas/liquid fuel in gas combined heat and power plants with district heating | 60 | 40 | 280 | 70 |