Member Info for Phimx

In a short term test we blasted in a huge amount of heat, over 100 kW input but long the reliability will be lousy. So now we are going to spend more time on additional development and you guessed we need more money.

30 kW of what ???

Maidit: You've been getting milked for years.

String it out John, longer the better. No need to produce anything just keep developing, developing developing ....

Observer: So from that statement we can deduce that Volvo have given no date for a trial to begin. Is this because they don't think In-Spirit will actually produce a prototype or because Volvo made no committment in the Letter of Support ? Also from the rather feeble statement " will be available" I assume In-Spirit are hoping that their begging bowl will be noted and one or two scraps thrown their way.

Would it not be far more impressive and credible if the statement read "we now see delivery of the WHR system to Volvo for trials before the end of Q2"

I know what's coming here!

Maidit: Are you suggesting the Charger will be fitted with turbine blades with that link ?

Not quite as preposterous as your perpetual energy device.

Ramp all you want but there's nothing of commercial value coming out of this company.

Maidit: Truly wonderful, if only In-Spirit had a product to sell.

Best of luck son

Of course it makes you wonder why In-Spirit were so slow on the uptake of waste heat recovery. These papers have been out for 20 years but In-Spirit tout their applications as if they are something new. For example Solar and refrigeration etc.

WHR has been on the go since the 70s, probably the Saudi oil price rises then triggered the interest

Observer:
Thanks for your efforts on your assessment of the benefits of the Inspirit Stirling to Volvo. It makes a change to have something of worth to read.
I have said in previous posts that a marine application is a great niche application for a Stirling. The availability of large amounts of continuous quality heat is ideal.
Whilst the paper you cite indicates what energy is theoretically available and what could be achieved from large diesels, that doesn’t mean that’s what you can actually produce from In-Spirits Stirling. In-Spirits Stirling is rated at 6.4 kW allegedly, and perhaps this could be improved slightly by the addition of more heat but as more and more heat goes in then reliability begins to decrease.
Again, as I have said before to make use of the D13 undoubted large amounts of waste heat requires a redesign. You cannot simply pump in more and more heat. The down side to more output is the weight and cost rises.

The 26 April 2019 RNS which announced “Currently in discussion with a large car/marine engine manufacturer to develop a unit for the shipping industry with current o/p of 11.68 kW”
This I believe is an erroneous statement probably resulting from a copy and paste error, it’s nonsensical. There has been no further reference to this figure. Also In-Spirits later statements state the Charger technology is already 65% compatible with the marine application indicates that they would be using the 6.4 kW Stirling design. As they put it, it will save development time. Surely this indicates another design is not in the making. Again another example of In-Spirit being unable to keep their story consistent.
1. Is 11.68 kW meant to be thermal or electrical ?
2. How can a unit that is yet to be developed have an output of 11.68 kW, as you said a very specific figure! You might say approximately 12 kW or the aim is to have an output of …
3. Is it meant to say the current (Amps) of this unit will be 11.68 A – very unlikely.
4. It seems more likely that part of a sentence has been deleted to leave this nonsensical potion.
5. It could relate to the thermal output of the Stirling. Assume 90% efficiency hence 18 kW goes into the Charger/Stirling to produce 6.4 kWe and therefore 11.6 kWt. The efficiency figure I’m sure has varied from 90 to 92%
The whole In-Spirit story is riddled with amateurism at all levels. There are too many holes and inconsistencies for long term investors to have any faith, the passage of time corroborates this. If memory serves, the last time we had a discussion the conclusion was it is difficult to come to any decent estimations due to the ambiguities and vagueness of the In-Spirit information or lack of it and so it remains.
At the end of the day John Gunn has not brought a single product to market in more than a decade of waffling on about doing so.

After years and years, investors are still waiting to see a Charger that can be tested and verified by a credible organisation.

That specifications and performance can be scrutinised instead of the ambiguous vague statements pumped out every few months.

Observer: " if low additional cost + other benefits such as lower noise, and compact form/low weight,..."

Low weight ? Just above that statement you cite the RNS which confirms 65% of the Charger technology is applicable to the marine application and WHR. That will be the Charger minus burner i.e. virtually all the Stirling engine minus a bit of pipe, Grundfos pump and a few bits of wire. So I'll be generous and knock off 100 kg that leaves the Stirling weighing in at 250 kg. Stick that under your car bonnet !!!!!

Observer: The trouble with continually citing the In-spirit RNS is, not one has ever delivered !

They have all FLOPPED

When will the Charger be certified, it's supposedly been on going for years. The whole Charger deal is one big joke until it has that magic certificate

Observer: Thank you for confirming that In-Spirit are using the 350kg Charge Stirling.

Can you please show how you arrive at 2-3 % efficiency improvement on a 500 HP D13.

Of course I realise you are not implying the Steering goes in the exhaust, I think That would block the entire system. As I have already explained the heat exchanger goes into the exhaust. Even that will have a serious affect on the exhaust flow.

Observer: You have been well deflected by that carefully crafted statement by In-Spirit.

" We are looking to deliver an adapted Volvo Penta D13 engine incorporating our WHR technology to recover the waste exhaust ...."

Alternatively, I read it as the project aim is to produce a system based upon a D13. This is in line with modelling exercise carried out. Physically a WHR system is due to be delivered to Volvo to be then fitted to a D13. It would make no sense to be shipping a D13 all around Europe. The WHR system simply collects heat from the D13 exhaust and the Stirling produce electricity. So all you need is the exhaust specifications to design the heat exchanger.if testing is to take place at Volvo then why ship a D13 to Poland ?

Of course what effect the heat exchanger has on the exhaust flow will be an interesting challenge!

Maidit: But don't let physics and common sense ruin your fantasies. You go for it son!

Maidit: when Volvo talk of generators they are referring to Generator Sets, large diesels driving electrical generators and thus producing huge amounts of quality waste heat.

In-spirit's Stirling cannot be used in automobile applications it weighs 350 kg .... think about that! It also needs cooling to be efficient, more weight! At present the only device In-Spirit have produces 6.4 kW allegedly. So even for a D13 producing 500 HP fitted to a large truck the gain is very small about 1.8%. Volvo have investigated solutions which provide 6% efficiencies using Ranking Cycle devices, a far better proposition!

Maidit: You wrote " INSP & Volvo
have been working on projects for the past 2 years ? long enough to get it to market IMO"

I think you just made that up !

Why do the institutions give these people Internet access and money?

John Gunn's perpetual money making machine is in safe hands with the investors here.

Maidit:. " it could be us in all Volvo new EV it's not impossible, if it is, then it would be very
disruptive indeed, imagine not stopping at petrol station or any charging point
in the future?"

Are you for real son ?

So how does this work - Volvo has a EV ... Charged by the In-spirit WHR system ... Powered by waste heat from .... The Battery

You've just invented the perpetual motion machine. Truly you are gifted !!