Part 9: Smoke and Mirrors
May, 1886
München, Imperial Germany
The winter had passed at last. The skies weren't too generous still, but they gave enough sunlight to perform continuous testing on his - and after all the improvements and modifications to the work done by Mouchot, it was
his - machine. The cracked mirror was replaced by a bigger one, of a decomissioned telescope that would have otherwise been discarded. It was bigger, more precise. In fact, too precise for the job at hand, as it concentrated sunlight in an area so small that it melted the surface of the first Stirling engine he used to test it, severely limiting its efficiency. A concave lens had solved that problem, and the new engine worked quietly and without any problems.
Dr. Klaus Hess smiled, he felt proud on his creation, and confident enough in its potential to demonstrate it to Herman Knoblauch, the director of the Leopoldina. More importantly, he felt proud enough to show it to his wife.
It was a bright day when Knoblauch and his entourage came to his laboratory. It was one of modest size, but he recognized the golden symbols on the epaulettes of an officer. A General of some sort, which could have meant something important, but most likely was just signalled that that officer had some free time. The device itself was covered by a canvas to stop it from gathering dust, giving it the appearance of a towering spectre above the men. His assistants took the canvas and aimed the array towards the sun. A smaller sun appeared on the hot end of the Stirling engine, even when he had coated it with a dark iron alloy to absorb more light. A small push to the flywheel, and the engine woke up, cranking then hissing then humming as it gathered speed.
- Ladies and Gentlemen. Esteemed Director Knoblauch, it is my honour to show you the first Solar Electric Generator. This device alone can generate two horsepower without burning a single lump of coal, as long as the sun shines. Until now, we have harnessed the energy beneath our feet. Coal, and petroleum might power devices now, but this energy pales in comparison to that provided by the Sun. I have seen it in action, powering a factory in the middle of a merciless desert. I can see helping us to reach temperatures we have never dreamed before, providing I can see its future, helping the German People to bring civilization to the darkest parts of Africa, draining swamps, irrigating deserts, providing industry and honest work to those we consider savages. One day, I can see it powering entire cities... Ladies and Gentlemen, it is time to soar above Icarus, to touch the sun and tame its power!
The people inspected the design, looking for any cable or sign of fraud, and found none. Knoblauch made some quick calculations on a notebook, and then called Klauss.
- Dr. Hess, if I'm not mistaken, this device is capturing about 12% of the energy it receives, isn't it?
- More, I'd say. It captures about 80% of the sun's heat. Then, it's almost Carnot-efficient... which is close to 60% of it. 48% before reaching the generator... which is where the greatest drop occurs.
- That's the problem with generators, unfortunately. But still... 50% thermal efficiency? You have something here, Dr. Hess. It could be very useful... perhaps not in the Ruhr where coal is abudant and the sun isn't. But places like Africa, southern Europe, even Austria-Hungary? It could greatly improve conditions, and power civilization... at least during the day. What about the night?
- That's a problem I haven't tackled right now. Batteries seem the most obvious solution, but a prohibitive one.
- Maybe one day batteries will solve that problem. Make no mistake, Klaus, this will be the issue that your devices will have to tackle to truly dispute with combustible fuels. This work is... satisfactory, but ill suited for this weather.
- Director, I've already been in a desert. I don't plan to go back to another.
- I wasn't thinking about a desert. Our neighbours to the south have some very sunny locations. Italy, or the Austro-Hungarian Empire should provide you with enough sunshine... and Germany would provide you with funding to match.
- I'll... have to think about it.
The two men were greeted by a voice with a foreign accent. A Danish accent, middle aged, but still somewhat youthful.
- Excuse me, I'm Poul la Cour and I couldn't help but congratulate you on your machine. Taking energy from the environment... it's something I've considered, too. I haven't started serious work just yet, but I belive that windmills can be improved to provide both mechanical and electrical power. I was wondering if we could exchange notes? I'd be glad to provide any assistance on subjects regarding electricity or meteorology.
- Sure, Herr La Cour. - Klaus said, a bit annoyed by the Dane's interference, which nevertheless rapidly faded as he remembered his own intrusion into Mouchot's work - Now that you mention it, if the wind can power a ship, it's only natural that it could power a town with a proper array of sails.
- Just as a proper array of these concentrators would. Truly amazing machines.
- This is actually a small device compared to what we saw in the Atacama desert. A crazy frenchman actually managed to power an entire factory with a solar concentrator. The sun there... it's downright brutal.
- The first of many, I hope. And if my calculations are correct, the wind contains a similar amount of power. If the sun can power a factory, maybe the wind can do the same.
As the first impression faded, Klaus found himself agreeing with the Dane inventor, sharing notes and ideas, and even arranging a meeting between La Cour and Hermann Knoblauch.
Eventually, the sun went too low for the concentrator to follow. The power quickly fell, and the engine stopped. The guests went their way, and Klaus found himself walking back home, with his wife Klara by his side. She was smiling, and a mild smirk hid beneath it.
- What are you plotting? - he asked.
- Nothing... I'm just so proud of you. I never knew I'd marry my own Prometheus.
- And yet, you're hiding something from me. - He teased her.
- Alright, you got me. - She said. - I found that speech a bit... melodramatic. "To soar like Icarus"?
- I... I actually wrote that one for you. You like those classical references.
- I know, my love. It's just that your style is drier. You thrive in it.
For just a moment, he considered asking her about moving south, to Italy or Croatia. Instead, he kissed her. That could wait a day or two, but this hour would never return.
Almonte, Tarapacá
Mouchot briefly considered if he should worry as much as Serrano and Puig did. His two colleagues were almost panicking by the imminent arrival of Madame Goyenechea and the industrialist delegation. Then he remembered his audience with Emperor Napoleon III, and just shrugged as both men kept running and yelling exasperated orders to the employees. He even had to tell both Chileans to knock it off, that they were starting to mistreat the force of labour. A few unlucky ones were chosen to serve as waiters in the impromptu tent set up for the ocasion.
No, Augustin wasn't worried. He had experience in this sort of things, and was sure that the Franco-Chilena would cause the correct impression on the visitors. So he sat and read his personal correspondence. He reserved the one with a Bolivian stamp for last. It came from that engineer from La Paz. He described the progress with the walipini design, and included some data that Lopez-Tikuña believed would be of interest to Mouchot. Augustin looked at the numbers and instantly recognized the mystery: even accounting the insultation provided by the design, the temperatures were higher than expected in cold days, and lower in hot ones. Lopez-Tikuña suspected that the ground itself carried a significant "temperature inertia", which he intented to investigate further, seeing the potential in this phenomenon.
"Remember that you can extract useful work from a temperature differential." - Mouchot wrote. - "If this temperature inertia is significant enough, it could further improve your design". He concluded the letter by wishing his son good health, and success in his research.
He briefly reflected on his predicament. In France, the center of civilization, he was mostly forgotten. On this unforgiving desert, he had vindicated his ideas. People were coming to see his machines in action, and he was ready to give them an spectacle worthy of the travel.
At noon the delegation arrived on a caravan of white, elegant coaches. The Mayor of Almonte also made himself present, although Mouchot wasn't sure which favour he tried to gain, and both his Chilean associates made sure he was welcomed, as long as he didn't interfere with the visit. Serrano and Puig had spared no expense. The factory was decorated and far cleaner than during its usual operation. Most of the workers were given the day off, with a few still working in case Madame Goyenechea or the other industrialists had any questions. Outside of it, his improved solar collector was hidden beneath a veil.
The industrialists were just as Mouchot had imagined... "people in top hats" would be his description of the bunch. However, his imagination totally failed to prepare him for Madame Goyenechea. He expected a happy comely widow, and instead she had a striking presence that separated from the crowd. She didn't seem to mind the burning sun, despite wearing the most strict mouring black. A few flaps of her fan, and it all went away.
With subdued panic, he realized that Puig and Serrano were right to demand perfection for the event. The two Chileans greeted her with the utmost respect and etiquette, and Mouchot feared he would faint in front of her.
- Monsieur Mouchot. C'est un honneur de vous recontrer. - She said, in a French with a slightly exagerated parisian accent.
- Le honneur est pour moi, Madame Goyenechea. - Mouchot answered.
Things then went through the motions. Puig led a tour through the factory was followed with a fancy lunch, and then Serrano presented some of the products already developed and sold.
And then, it was his turn to speak. Puig and Serrano prompted the visitors to the yard where they kept the Solar Collector. Mouchot walked towards the improved collector, a flower of mirrors seven meters across. A few targets behind him revealed his intentions, but Mouchot wasn't a man for theatrics, and so he didn't bother to hide them.
- Distinguished ladies and gentlemen, it might not seem like it, but you're standing inside a locomotive. This yard is currently getting the same amount of energy as the most powerful train boiler. Until recently, it was a source of energy untapped. And here, in this desert, we have made the first steps towards using it. The path wasn't always smooth, but today we can be certain that the future will be powered by the Sun. While we prepare the collector, please put on the protective goggles our staff is providing. - He set the example, protecting his eyes behind dark soldering glasses.
With that prompt, two workers dropped the canvas and revealed the collector. The mirrors gave an inverted reflection of the sky, and enlarged and distorted his own. The workers then pointed the collector towards, where the light bounced and focused onto a circle thirty centimeters across. The ray shone with the intensity of a hundred and fifty suns, bathing the whole scene into a harsh light.
- The power of the sun can be harnessed. Its heat can be collected and redirected to where we see fit. Be it to boil water. - and with that, the ray targeted a water tank especially set for the ocassion. For ten seconds nothing happened, then some timid bubbles began to surface. Within a minute, the water boiled. - or provide motive power via steam.
The ray moved to the combustion chamber of a portable engine. A labourer had to kickstart the flywheel, but once the machine started moving, it quickly accelerated.
He allowed the crowd to absorb what they were seeing, to understand its implications, before continuing.
- The sun can provide industrial quantities of heat. Enough heat to melt metals. - The ray set its aims to a bar of copper, weighting about 50 kilos. It should have glowed red, then yellow as it melted, but any emission was drowned by the concentrated sun's glare. That was the que to cover the mirror. Colors and soft shadows returned to the yard, allowing the liquid copper to hold some protagonism. One by one, the industrialists took off their goggles.
- This... this is incredible. - One of them said. - Imagine one of these in a mine.
- Oh, it's not incredible at all, Monsieur Barros Luco. So far, everything this machine does can be done with coal... and our machine has its own limitations against that black fuel.
- It obviously can't generate power at night. It's inadequate for some parts of the world, and it's at the mercy of the weather. - Mouchot looked at Serrano and Puig, both providing an entirely different type of glare.
- However, coal also has its limitations. For one, it needs to be hauled and distributed from the mine to the boiler. There's a limited amount of it, and once we have burned the last lump, we won't get any more. And more importantly... - he put his goggles back on. - it can't burn very hot. Not hot enough to boil iron. Ladies and gentlemen, please put them back on.
The curtain fell from the collector. The glare and the ray returned, this time aimed. There it bounced into a fresnel lens, concentrating the ray further onto a circle five centimeters across.
The ingot never stood a chance. It melted into a pool. It shone white hot, and then it began to boil just as he promised. Bubbles of gaseous metal appeared.
Then the fresnel lens shattered under the heat. With that, the demonstration was over. The collector was covered for good this time, and Mouchot was ready to answer any questions.
Later that evening
Most of the visitors had returned to Iquique that same afternoon. Isidora Goyenechea, on the other hand, set up a tent to stay overnight. Although "tent" didn't quite describe the extravagance of it. It was well lit, with carpets that hid the soil beneath and fine furniture. She had invited the three men in charge, and provided the hundred employees of the Franco-Chilena with fifteen lambs to roast.
- One should be grateful with the workers and treat them well. They're the cornerstone of any successful operation. - She said. - This is also true for our associates.
- A toast for them, then! - Puig said.
They lifted their glasses and drank. If it wasn't the finest wine Mouchot had ever tasted, it was as close as to make no difference. It also losened the tongue, or at least gave Mouchot the confidence to speak freely.
- Madame Goyenechea, if I might ask... why are you so interested in our company? Isn't our operation in direct competition to your business?
- Of course you are, and yet you are not. - She paused to take a sip. - If you only think in coal, then we are competitors. But coal also competes with electricity, and I'm investing in that as well. Electricity can do most of the things coal-powered steam does, and only time will tell what it will be capable of doing in the century to come. I suspect that your machines have a similar potential. I have seen it making a few dents on coal demand already, as my managers inform me that some neighbourhoods have drastically reduced their needs after they have installed your water heaters. I've experencied it myself: those heaters have paid for themselves with the amount of coal we saved. And with what you've showed us this day, I can foresee a day when coal might not be able to compete with the sun. I would almost say it's not fair to us, poor Coal Barons and Baronesses.
- I have dreamt of that day to be honest. Back in France, I built the first collector because coal was a strategic crutch. If either Germany or the United Kingdom declared war on us, their coal reserves were a significant advantage.
- War. Such a terrible thing. - Goyenechea said dismissively. - Let me ask you something in return, Monsieur Mouchot: Do you think this idea of yours could be used to power a mine? or a city?
- I could provide all the heat needed for industrial purposes. A mine wouldn't be too difficult, just a matter of scale and quality. A city? I... I can't see how it would be possible to store the energy for when it is needed most during the night.
- Really? My workers enjoy hot water during the night as well thanks to your machines.
- Oh, but it's an entirely different scale we're talking about. Keeping water hot for a night isn't difficult. But providing enough heat to keep a generator running the entire night? Temperatures are higher, which means that losses occur faster. You'd need a large enough mass to keep that heat, and dedicated collectors for these "heat reservoirs".
- But it isn't impossible.
- No, not at all.
- What about a town, then? let's say, a town of a thousand or so inhabitants. Could you provide them with electricity around the clock?
- That's a better starting point. It'd be easier to find some method to store work... maybe compressed air at a larger scale?
- Very well, then. Let's see if your ingenuity and my resources can make Almonte the first place where the sun doesn't set. - Said Isidora Goyenechea.
Of all the wars of the XIX century, perhaps the most curious one was the one fought between Chile and Germany. Neither country was aware it was fighting a war, but considering the amount of coincidences and parallel developments, the image of something akin to a conflict appears. Surprisingly, both "sides" were more or less evenly matched. The efforts of Hess - soon to be incorporated by the Leopoldina Scientific Society - were concentrated in extracting useful work from the sun, and thus his designs were more suitable as replacements for steam engines. Augustin Mouchot, was focused on the direct use of solar heat, allowing him more freedom to scale his models as he saw fit.
The first semester of 1886 proved a fortunate time for both men. Hess impressed the Leopoldina with its design, and was granted the resources needed to further develop solar concentrators in more suitable conditions. Mouchot, on the other hand, attracted the interest of coal magnate Isidora Goyenechea and secured enough funding to begin research on large scale projects.
The two men in this war had almost polar working conditions. Hess had easy access to quality manufacturing and technicians, but his research slowed down significantly during the cold months. Mouchot had sun in abundance, but lacked a proper industrial base or easy contact with experts in other fields. Mouchot's correspondence often refer to this problem, and his surviving devices of this era are notably cruder than those produced in Germany.