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


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  #31  
Old 11-20-2016, 07:40:48 PM
Wayne 440 Wayne 440 is online now
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Default Re: Genajunk is running a 1/2 hour info-ad at night

I'm not resistant to some standby power technology that might one day offer an alternative to my 32 year old Onan RDJC and the several smaller sets I have. However, I haven't seen anything yet that I believe to be a suitable replacement. One can make a convincing argument that the diesel generator reached its pinnacle in the mid 1980's to early 1990's.
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  #32  
Old 11-20-2016, 08:23:47 PM
Vanman Vanman is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Only suitable replacement for a 32 year old set would be another 32 year old set, or 42 or 52 or 62 etc. I sure wouldn't want a 22 year old one!
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  #33  
Old 11-20-2016, 08:33:07 PM
YellowLister YellowLister is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

The only 22 year old generator I'd want is a dkd or similar
. Or a late J series.. and I have both..
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  #34  
Old 11-20-2016, 08:39:59 PM
Newoldstock Newoldstock is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

I was at the Home depot today looking for some material to cap some windows.
It's the first time I made an effort to look for the Generac display that I have ignored for the longest time.
They probably still sell them but they don't show them off anymore.
I think that's a sign people are tired of being parted from their money.
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  #35  
Old 11-20-2016, 09:23:49 PM
len k len k is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Generac is on display at Lowes, prominently displayed by the entrance doors ( must be a high markup item).

Co generation is a nice idea , Europe's been doing that since the 50's piping and selling waste steam heat from power plant underground to the town homes.

That YANMAR co generation idea is nice , but it's sounds like just a SMALL regular water cooled genset, likely nat gas powered piston engine. Will need oil changes. Problem is might be lucky to have a 5 year life before engine needs a rebuild. 5 years with a 25% duty cycle is 11,000 hours.

Has to be small engine , here in northeast a typical 7.5 kw JB pulls down 1.2 gal/hr gasoline ( ~ 150 kBTU/hr input) at full load. It' s about 18% efficient at full load, so that's 123 kBTU of waste heat out exhaust and cooling water (maybe 1/2 and 1/2). Typical house here had a 100 kBTU/hr furance to heat house on worst case day ~ -15 degs.

So you can see likley it would need to be a smaller kw gen, a JB it would likely generate more electricity and heat than you need.

Might be more practical if the co-generation system used a fuel cell ( maybe phosphoric acid one). Less moving wearout issues.

Last edited by len k; 11-20-2016 at 10:11:59 PM.
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  #36  
Old 11-21-2016, 05:52:01 PM
Newoldstock Newoldstock is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

I read some technical stuff out of Japan that is giving the natural gas fueled Xlink engine.
No number on engine life numbers but there are thousands of them in service providing heat and power ( 1 kw electric I don't have the thermal numbers ).
A lot of people over there heat with Kerosene wick heaters so their heating requirements are lower than we have.

Here's a closer look of the unit.
https://www.youtube.com/watch?v=u7YtSaswEqQ

I wonder how long it can run at 1200 rpm?
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  #37  
Old 11-21-2016, 06:17:29 PM
len k len k is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

The link ......looks like it's just a compact long stoke design engine with extra parts to break and wearout.
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  #38  
Old 11-21-2016, 07:19:25 PM
Dale Russell Dale Russell is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

Basically, it is the design of the early Sterling Engine.
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  #39  
Old 11-21-2016, 08:34:10 PM
turtmaster turtmaster is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

i think it looks like an Atkinson cycle engine, if you look closely while watching video you will notice that the power stroke is longer than the other strokes.
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  #40  
Old 11-21-2016, 09:43:18 PM
Dale Russell Dale Russell is offline
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Default Re: Genajunk is running a 1/2 hour info-ad at night

turtmaster, My mistake, it is an Atkinson.
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