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Genajunk is running a 1/2 hour info-ad at night


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  #41  
Old 11-21-2016, 10:09:17 PM
Newoldstock Newoldstock is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Yes the Power and Exhaust strokes are longer than the intake and compression.

The bell crank does this to increase the expansion rate on the power stroke and increase the thermal efficiency without increasing the effective compression ratio to the detonation point.
It also decrease the side loading on the piston to reduce friction.

This is a regular production engine fellows used in thousands of homes out there as part of a heat and power generation system....

Its an example of what I was saying.
Now combine this with a decent inverter and some battery back up and you really have something.
But we are not quite there yet.

I would like to know how many hours you can put on an engine like this?
it turns 1200 rpm and holds a gallon of oil for longer duration runs.
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  #42  
Old 09-10-2017, 09:46:04 PM
len k len k is online now
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Now with the hurricanes Genajunk is running ads again late at night.
~1-2 minutes long

Last edited by len k; 09-10-2017 at 10:17:24 PM.
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  #43  
Old 09-10-2017, 10:42:55 PM
JohnnyC JohnnyC is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

I seen one of the ads early this evening and they marketed their product stressing that the lights won't go off during a hurricane if you have a Generac. They have a great marketing campaign by knowing how to take advantage of a situation, good or bad.

JohnnyC
New Jersey
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  #44  
Old 09-11-2017, 12:40:12 AM
Steve Dawkins Steve Dawkins is online now
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Years ago, York air conditioning company introduced their Triathlon heat pump. The compressor in the condensing unit was driven by a special 5HP B&S engine that ran on NG. They were pricey, and not very popular around here. I only saw a couple of them in operation.

https://en.wikipedia.org/wiki/Triathlon_(heat_pump)

Last edited by Steve Dawkins; 09-11-2017 at 12:51:20 AM. Reason: Fixed the link
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  #45  
Old 09-11-2017, 01:02:25 AM
len k len k is online now
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Weak point I see in current ads besides the gen is they imply it's fueled by nat gas ( undergroud pipe line). Hear lot lately of towns shutting off nat gas during flooding , earthquakes , ect.

Likely not much advantage to fuel powered AC vs utility powered as far as power costs.
Maybe good for off the grid so don't need a large gen.
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  #46  
Old 09-11-2017, 01:08:47 AM
Vanman Vanman is online now
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Now, if they collected as much of the waste heat as possible from the engine, and used that to power an absorbtion chiller along side of the conventional unit....
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  #47  
Old 09-11-2017, 07:41:19 AM
Wayne 440 Wayne 440 is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Quote:
Originally Posted by Vanman View Post
Now, if they collected as much of the waste heat as possible from the engine, and used that to power an absorbtion chiller along side of the conventional unit....
Then there would not be an HVAC person within 150 miles of my house that could repair it when it broke.
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  #48  
Old 09-11-2017, 08:17:43 AM
armandh armandh is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

when visiting a fellow in the same industry in the 1980s [Switzerland]
I saw where.....
he and three others had constructed a central heating plant for their homes.
It had solar plus a diesel engine driven compressor-heat pump
[to scavenge exhaust and engine room heat]
as I recall it also has a generator to load the engine and supplied electrical heat to the hot water loop.

the engine block had self disassembled

while it milked every BTU from the fuel oil....no one had considered
what low Freon would do to the engine speed regulation.
sorta like a belt driven governor, sans the belt.

and perhaps that it would need to run near capacity to be efficient.

in the interim, for the hot water loop,
an old fashion boiler was pressed into service while lawyers were hard at work
the engine was impressive, no doubt the replacement would be expensive
the hole in the side of the block was impressive too.

Last edited by armandh; 09-11-2017 at 08:42:15 AM.
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  #49  
Old 09-11-2017, 10:50:33 AM
len k len k is online now
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Another problem that would show up is rotary shaft seal on pump would eventually wear and leak.
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