Steam Engine Efficiency - Revision history

Eric: Added a Category to the Page

2020-12-21T01:46:23Z

Added a Category to the Page

← Older revision		Revision as of 01:46, 21 December 2020
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	{{Category=Solar Turbine}}		{{Category=Solar Turbine}}
	{{Category=Steam Engine}}		{{Category=Steam Engine}}

			[[Category: Incomplete Pages]] [[Category: Sustainability]]

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^] |])[ |]([^]])\]" to "$2"

2013-07-02T21:45:58Z

Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^] |]*)[ |]([^]]*)\]" to "$2"

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	==Efficiency Predictions of Steam Engine==		==Efficiency Predictions of Steam Engine==

	The basic efficiency of a heat engine is governed by the [http://www.powerfromthesun.net/chapter12/Chapter12new.htm#12.1.2%20%20%20%20%20Thermal%20Efficiency Carnot Cycle]. For our case, we will operate at 650 K [http://openfarmtech.org/index.php?title=Solar_Collector_Losses_Summary#Radiation_Loss_Calculation650K] (377C, or 710F), the practical upper bound due to [~~http://openfarmtech.org/index.php?title=~~Solar_Collector_Calculations#Absorber_efficiency_and_operating_temperature blackbody radiation losses for our case].		The basic efficiency of a heat engine is governed by the [http://www.powerfromthesun.net/chapter12/Chapter12new.htm#12.1.2%20%20%20%20%20Thermal%20Efficiency Carnot Cycle]. For our case, we will operate at 650 K [http://openfarmtech.org/index.php?title=Solar_Collector_Losses_Summary#Radiation_Loss_Calculation650K] (377C, or 710F), the practical upper bound due to [[Solar_Collector_Calculations#Absorber_efficiency_and_operating_temperature\|blackbody radiation losses for our case]].

	This is the practical upper limit:		This is the practical upper limit:

Elifarley: Reverted edits by Elifarley (talk) to last revision by Mjn

2013-07-02T21:23:07Z

Reverted edits by Elifarley (talk) to last revision by Mjn

← Older revision		Revision as of 21:23, 2 July 2013
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	==Efficiency Predictions of Steam Engine==		==Efficiency Predictions of Steam Engine==

	The basic efficiency of a heat engine is governed by the [http://www.powerfromthesun.net/chapter12/Chapter12new.htm#12.1.2%20%20%20%20%20Thermal%20Efficiency Carnot Cycle]. For our case, we will operate at 650 K [[Solar_Collector_Losses_Summary#Radiation_Loss_Calculation650K]\|(377C, or 710F), the practical upper bound due to [http://openfarmtech.org/index.php?title=Solar_Collector_Calculations#Absorber_efficiency_and_operating_temperature blackbody radiation losses for our case]].		The basic efficiency of a heat engine is governed by the [http://www.powerfromthesun.net/chapter12/Chapter12new.htm#12.1.2%20%20%20%20%20Thermal%20Efficiency Carnot Cycle]. For our case, we will operate at 650 K [http://openfarmtech.org/index.php?title=Solar_Collector_Losses_Summary#Radiation_Loss_Calculation650K] (377C, or 710F), the practical upper bound due to [http://openfarmtech.org/index.php?title=Solar_Collector_Calculations#Absorber_efficiency_and_operating_temperature blackbody radiation losses for our case].

	This is the practical upper limit:		This is the practical upper limit:

Elifarley: Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^ ]) ([^]])\]" to "$2"

2013-07-02T19:09:17Z

Text replace - "\[http:\/\/openfarmtech\.org\/index\.php\?title=([^ ]*) ([^]]*)\]" to "$2"

← Older revision		Revision as of 19:09, 2 July 2013
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	==Efficiency Predictions of Steam Engine==		==Efficiency Predictions of Steam Engine==

	The basic efficiency of a heat engine is governed by the [http://www.powerfromthesun.net/chapter12/Chapter12new.htm#12.1.2%20%20%20%20%20Thermal%20Efficiency Carnot Cycle]. For our case, we will operate at 650 K [~~http://openfarmtech.org/index.php?title=~~Solar_Collector_Losses_Summary#Radiation_Loss_Calculation650K] (377C, or 710F), the practical upper bound due to [http://openfarmtech.org/index.php?title=Solar_Collector_Calculations#Absorber_efficiency_and_operating_temperature blackbody radiation losses for our case].		The basic efficiency of a heat engine is governed by the [http://www.powerfromthesun.net/chapter12/Chapter12new.htm#12.1.2%20%20%20%20%20Thermal%20Efficiency Carnot Cycle]. For our case, we will operate at 650 K [[Solar_Collector_Losses_Summary#Radiation_Loss_Calculation650K]\|(377C, or 710F), the practical upper bound due to [http://openfarmtech.org/index.php?title=Solar_Collector_Calculations#Absorber_efficiency_and_operating_temperature blackbody radiation losses for our case]].

	This is the practical upper limit:		This is the practical upper limit:

Mjn at 22:14, 1 May 2011

2011-05-01T22:14:27Z

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			{{Category=Steam Engine}}

	=Introduction=		=Introduction=

Mjn: Changed category reference.

2011-04-30T02:28:38Z

Changed category reference.

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			{{Category=Solar Turbine}}
			{{Category=Steam Engine}}
	[[Category:Solar Turbine]]
	[[Category:Steam Engine]]

Elifarley at 23:24, 31 August 2010

2010-08-31T23:24:38Z

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	[[Category:~~Solar_Turbine~~]]		[[Category:Solar Turbine]]
	[[Category:Steam ~~engine~~]]		[[Category:Steam Engine]]

Jeb: Reverted vandalism, and removed one hanging stub I couldn't find in the history.

2009-10-23T07:46:24Z

Reverted vandalism, and removed one hanging stub I couldn't find in the history.

← Older revision		Revision as of 07:46, 23 October 2009
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	~~Jhon sucked a gay nigger dick~~. Here is a chart showing relationships of various efficiency standards for a steam engine:		=Introduction=

			Start with definition of terms. Here is a chart showing relationships of various efficiency standards for a steam engine:
	(source:[http://books.google.com/books?hl=en&id=uzoJbLVkUHUC&dq=steam+engine+principles+and+practice&printsec=frontcover&source=web&ots=hzdKZRs6yz&sig=Tb5c3HglGpb-FXn5Zk8qlwNhm6E&sa=X&oi=book_result&resnum=2&ct=result#PPA411,M1 ], Chapter 10. There are some compounds over 26% overall efficiency and some singles running over 14%. Reportedly, 20% efficiency was obtained (another reference), but it had very low cutoff ratio and couldn't tolerate load changes. That is where the electronic steam valve comes in to achieve this.)		(source:[http://books.google.com/books?hl=en&id=uzoJbLVkUHUC&dq=steam+engine+principles+and+practice&printsec=frontcover&source=web&ots=hzdKZRs6yz&sig=Tb5c3HglGpb-FXn5Zk8qlwNhm6E&sa=X&oi=book_result&resnum=2&ct=result#PPA411,M1 ], Chapter 10. There are some compounds over 26% overall efficiency and some singles running over 14%. Reportedly, 20% efficiency was obtained (another reference), but it had very low cutoff ratio and couldn't tolerate load changes. That is where the electronic steam valve comes in to achieve this.)

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	For our case, we take Carnot efficiency = (650K - 363K)/650K = 44%		For our case, we take Carnot efficiency = (650K - 363K)/650K = 44%

	for the case of going from 377C to 90C. The Rankine cycle ratio of .4 is proven for simple steam engines - so our worst case efficiency scenario is 17.6%. If we subtract 10% from this for mechanical efficiency losses - then we obtain about 16% efficiency. With steam injection electronic valving, we can approach the triple-expansion engine efficiency - .6 Rankine cycle ratio - or steam engines with 26.4% thermal efficiency. Cylinder insulation should cover cylinder heat loss, and perfect control of steam injection should allow for near-complete extraction of usable energy from steam. ~~which is vital to the process~~		for the case of going from 377C to 90C. The Rankine cycle ratio of .4 is proven for simple steam engines - so our worst case efficiency scenario is 17.6%. If we subtract 10% from this for mechanical efficiency losses - then we obtain about 16% efficiency. With steam injection electronic valving, we can approach the triple-expansion engine efficiency - .6 Rankine cycle ratio - or steam engines with 26.4% thermal efficiency. Cylinder insulation should cover cylinder heat loss, and perfect control of steam injection should allow for near-complete extraction of usable energy from steam.

	As the last step, we have a 95% efficienct generator, for a total of about 15% efficiency for the steam - electrical cycle.		As the last step, we have a 95% efficienct generator, for a total of about 15% efficiency for the steam - electrical cycle.

	==Overall Efficiency		==Overall Efficiency of Solar Generator==

	We have shown in [[Solar_Collector_Losses_Summary]] that the solar collector/boiler efficiency is 47%. We multiply this by 16% efficiency of the steam engine cycle - and obtain an overall system efficiency of 7.5%. This will give us 3.6 kW of power as milestone that reaches the $1/watt materials cost prediction. ~~For reasons of theorums that state~~		We have shown in [[Solar_Collector_Losses_Summary]] that the solar collector/boiler efficiency is 47%. We multiply this by 16% efficiency of the steam engine cycle - and obtain an overall system efficiency of 7.5%. This will give us 3.6 kW of power as milestone that reaches the $1/watt materials cost prediction.

	==Comparison to Others==		==Comparison to Others==

204.185.61.253 at 18:59, 22 October 2009

2009-10-22T18:59:26Z

← Older revision		Revision as of 18:59, 22 October 2009
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	~~=Introduction=~~		Jhon sucked a gay nigger dick. Here is a chart showing relationships of various efficiency standards for a steam engine:

	~~Start with definition of terms~~. Here is a chart showing relationships of various efficiency standards for a steam engine:
	(source:[http://books.google.com/books?hl=en&id=uzoJbLVkUHUC&dq=steam+engine+principles+and+practice&printsec=frontcover&source=web&ots=hzdKZRs6yz&sig=Tb5c3HglGpb-FXn5Zk8qlwNhm6E&sa=X&oi=book_result&resnum=2&ct=result#PPA411,M1 ], Chapter 10. There are some compounds over 26% overall efficiency and some singles running over 14%. Reportedly, 20% efficiency was obtained (another reference), but it had very low cutoff ratio and couldn't tolerate load changes. That is where the electronic steam valve comes in to achieve this.)		(source:[http://books.google.com/books?hl=en&id=uzoJbLVkUHUC&dq=steam+engine+principles+and+practice&printsec=frontcover&source=web&ots=hzdKZRs6yz&sig=Tb5c3HglGpb-FXn5Zk8qlwNhm6E&sa=X&oi=book_result&resnum=2&ct=result#PPA411,M1 ], Chapter 10. There are some compounds over 26% overall efficiency and some singles running over 14%. Reportedly, 20% efficiency was obtained (another reference), but it had very low cutoff ratio and couldn't tolerate load changes. That is where the electronic steam valve comes in to achieve this.)

204.185.61.253: /* Overall Efficiency Gay Nigger */

2009-10-22T18:49:20Z

Overall Efficiency Gay Nigger

← Older revision		Revision as of 18:49, 22 October 2009
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	As the last step, we have a 95% efficienct generator, for a total of about 15% efficiency for the steam - electrical cycle.		As the last step, we have a 95% efficienct generator, for a total of about 15% efficiency for the steam - electrical cycle.

	==Overall Efficiency ~~Gay Nigger==~~		==Overall Efficiency

	We have shown in [[Solar_Collector_Losses_Summary]] that the solar collector/boiler efficiency is 47%. We multiply this by 16% efficiency of the steam engine cycle - and obtain an overall system efficiency of 7.5%. This will give us 3.6 kW of power as milestone that reaches the $1/watt materials cost prediction. For reasons of theorums that state		We have shown in [[Solar_Collector_Losses_Summary]] that the solar collector/boiler efficiency is 47%. We multiply this by 16% efficiency of the steam engine cycle - and obtain an overall system efficiency of 7.5%. This will give us 3.6 kW of power as milestone that reaches the $1/watt materials cost prediction. For reasons of theorums that state