Resource efficiency with useful heat or electricity - Revision history

Nallebrean: /* Relative energy demand for heating with combinations of electricity production and electric heating/heat pumps */

2023-03-09T09:45:43Z

Relative energy demand for heating with combinations of electricity production and electric heating/heat pumps

← Older revision		Revision as of 11:45, 9 March 2023
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	!<=COP		!<=COP
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	!Solar cell		![[Solar cell]]
	!'''15%'''		!'''15%'''
	\| <u>667%<u>		\| <u>667%<u>

Nallebrean: /* Relative energy demand for heating with combinations of electricity production and electric heating/heat pumps */

2022-09-17T13:33:42Z

Relative energy demand for heating with combinations of electricity production and electric heating/heat pumps

← Older revision		Revision as of 15:33, 17 September 2022
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	'''Bold''' is the dividing line where the combination gives a higher efficiency than the theoretical maximum for combustion alone or heat capture for heating (100%).		'''Bold''' is the dividing line where the combination gives a higher efficiency than the theoretical maximum for combustion alone or heat capture for heating (100%).

			====Conclusions ====
			*[[Resistive electric heating]] corresponds to COP 1. It gives that it is more efficient to burn the fuel directly for heating than resistive electric heating.

			*For the combination gas combined cycle power plant and heat pump with heat factor (COP) 4, the total energy requirement is reduced to 42% compared to direct combustion with a theoretical 100% efficiency.

			*Conversion from gas heating to heat pumps ([[SCOP]] 4) is very efficient.

			*Conversion from coal burning to heat pumps ([[SCOP]] 4) with coal condensate is also effective.

			*Thermal power has an electrical efficiency of up to 60%. An efficient combustion boiler up to approx. 90%. Local heating as peak heating for heat pumps, (wood, oil, gas, etc.) then results in lower total energy use and carbon dioxide emissions.

			*By combining high-efficiency power units with heat pumps with a high heating factor, the fuel requirement can be reduced.

	===Electric car compared to ICE petrol car ===		===Electric car compared to ICE petrol car ===

Nallebrean: /* All types of power sources */

2022-09-17T13:26:38Z

All types of power sources

@@ Line 25: / Line 25: @@
 | Gas/liquid fuel in gas combined heat and power plants with district heating || 60 || 40 || 280 || 70
 |}
 ===Electric car compared to ICE petrol car ===

Nallebrean at 18:40, 1 September 2022

2022-09-01T18:40:47Z

← Older revision		Revision as of 20:40, 1 September 2022
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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 x heating and y electricity. Higher number is better.		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.

Nallebrean: /* All types of power */

2022-09-01T18:39:35Z

All types of power

← Older revision		Revision as of 20:39, 1 September 2022
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	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.

	===All types of power===		===All types of power sources===
	{\| class="wikitable sortable"		{\| class="wikitable sortable"
	\|-		\|-

Nallebrean at 18:36, 1 September 2022

2022-09-01T18:36:51Z

← Older revision		Revision as of 20:36, 1 September 2022
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	[[Category:English]]		[[Category:English]]
	([[~~Resource efficiency with useful heat or electricity~~ \|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 x heating and y electricity. Higher number is better.		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.

Nallebrean at 18:35, 1 September 2022

2022-09-01T18:35:23Z

← Older revision		Revision as of 20:35, 1 September 2022
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	[[Category:English]]		[[Category:English]]
			([[Resource efficiency with useful heat or electricity \|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.		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.

Nallebrean at 18:25, 1 September 2022

2022-09-01T18:25:11Z

← Older revision		Revision as of 20:25, 1 September 2022
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	[[Category:English]]		[[Category:English]]
	One way to determine which energy source is best for the environment is to assess the benefit in the form of heat or electricity a power ~~stroke~~ can provide. The tables below can be read as 1 unit of fuel provides x ~~heat~~ and y electricity. Higher number is better.		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.
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	{\| class="wikitable sortable"		{\| class="wikitable sortable"
	\|-		\|-
	! Power source<br> 100% in!! % Electricity out!! % ~~Warm up~~!! % Useful heat out <br>with VP COP 4 !! Net effect electricity ~~production~~<br>% fuel in		! Power source<br> 100% in!! % Electricity out!! % Heat out!! % Useful heat out <br>with HP COP 4 !! Net effect electricity contribution<br>by % of fuel energy in
	\|-		\|-
	\|Direct combustion for ~~heat~~ <br>(wood burning, pellets, oil, gas) \|\| 0 \|\| 100 \|\| 100 \|\| 25		\|Direct combustion for heating <br>(wood burning, pellets, oil, gas) \|\| 0 \|\| 100 \|\| 100 \|\| 25
	\|-		\|-
	\| Internal combustion engine with gas/liquid fuel <br>([[Gen set]])\|\| 35\|\| 0 \|\| 140 \|\| 35		\| Internal combustion engine with gas/liquid fuel <br>([[Gen set]])\|\| 35\|\| 0 \|\| 140 \|\| 35
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	\|}		\|}

	====Electric car compared to petrol car ====		===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.		An electric car cuts carbon dioxide emissions in half compared to a petrol car if the electricity is produced with petrol.

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	{\| class="wikitable sortable"		{\| class="wikitable sortable"
	\|-		\|-
	! Power ~~stroke~~<br> 100% in !! % Electricity out!! % ~~Warm up~~!! % Useful heat out <br>with VP COP 4 !! Net effect electricity ~~production~~<br>% fuel in		! Power source<br> 100% in!! % Electricity out!! % Heat out!! % Useful heat out <br>with HP COP 4 !! Net effect electricity contribution<br>by % of fuel energy in
	\|-		\|-
	\|Direct combustion for heat <br>(wood burning, pellets, oil, gas) \|\| 0 \|\| 100 \|\| 100 \|\| 25		\|Direct combustion for heat <br>(wood burning, pellets, oil, gas) \|\| 0 \|\| 100 \|\| 100 \|\| 25
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	{\| class="wikitable sortable"		{\| class="wikitable sortable"
	\|-		\|-
	! Power ~~out~~!! % Electricity out!! % Heat out !! % Useful heat out<br>with VP COP 4 !! Net effect electricity ~~production~~<br> % fuel in		! Power source<br> 100% in!! % Electricity out!! % Heat out!! % Useful heat out <br>with HP COP 4 !! Net effect electricity contribution<br>by % of fuel energy in
	\|-		\|-
	\|Direct combustion for heat <br>(wood burning, pellets, oil, gas) \|\| 0 \|\| 100 \|\| 100 \|\| 25		\|Direct combustion for heat <br>(wood burning, pellets, oil, gas) \|\| 0 \|\| 100 \|\| 100 \|\| 25

Nallebrean at 18:19, 1 September 2022

2022-09-01T18:19:54Z

← Older revision		Revision as of 20:19, 1 September 2022
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	[[Category:~~Svenskar~~]]		[[Category:English]]
	One way to determine which energy source is best for the environment is to assess the benefit in the form of heat or electricity a power stroke can provide. The tables below can be read as 1 unit of fuel provides x heat and y electricity. Higher number is better.		One way to determine which energy source is best for the environment is to assess the benefit in the form of heat or electricity a power stroke can provide. The tables below can be read as 1 unit of fuel provides x heat and y electricity. Higher number is better.

Nallebrean at 18:19, 1 September 2022

2022-09-01T18:19:21Z

← Older revision		Revision as of 20:19, 1 September 2022
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	[[~~Kategori~~:Svenskar]]		[[Category:Svenskar]]
	One way to determine which energy source is best for the environment is to assess the benefit in the form of heat or electricity a power stroke can provide. The tables below can be read as 1 unit of fuel provides x heat and y electricity. Higher number is better.		One way to determine which energy source is best for the environment is to assess the benefit in the form of heat or electricity a power stroke can provide. The tables below can be read as 1 unit of fuel provides x heat and y electricity. Higher number is better.