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marrō: functional protein soda made with bone broth for daily wellness
With 12g of protein and collagen, marro is a refreshing, dairy-free protein soda made from bone broth. marro supercharges workout recovery, supports gut health and strong hair, skin and nails and prom...
![PHIL COLLINS: Here tonight is the man who inspired my next song, "Fat Shithead Clogged My Toilet."
[spotlight tracks Sir Paul McCartney as he heads for Exit]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:jgzzbvqf2gckao52xpbuh6wj/bafkreicm4bxpjg6vvwrfl5qhfo52uwonjsgdpvdnv66vnfxzlvwtg5zhr4)
![If your temperature delta is high enough that you've got heat haze and need to exhaust it safely away from nearby people, i.e. straight up, you're running horrifically inefficiently. Minimum Δ-T is pretty key to efficient operation. I can, however, confirm that I am a heavyset nerd.
[...] in circumstances like these, where a supply of water was near to hand, the air-based heat exchanger could be swapped out for a module that performed the same task by heating up water. A system of umbilicals made it possible for the hot part of it to trail in the Brazos along the flank of the pontoon boat, so long as the users didn’t expect to do a lot of moving around.
100% true. Liquid cooling the condenser makes heat rejection WAY more efficient. That said, "Swapping" modules on a compressor-based system is not trivial. I think the best way would be to have a small brazed-plate heat exchanger in series with the forced-convection one, or, as I've done, simply sister some liquid heat exchangers up to the air-cooled condenser. Either way, you don't want to put "the hot part" in the water; way easier to bring Mohammed to the mountain than vice-versa.
An evaporative cooler might also be fairly useful do drop the condenser temp below ambient in low-humidity circumstances, though depending on COP you might be better off just packing more lithium batteries than the equivalent weight in water for evaporative cooling.
In terms of efficiency: At the ambient temperatures I've tested, whih admittedly are low so far, I'm getting a COP of 2-4. A COP of 2 means you're rejecting 2 joules out of the body for every joule of electricity you provide the suit, which maks lithum batteries way better than ice, pound-for-pound. It's also an order of magnitude better COP than peltier coolers.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:jgzzbvqf2gckao52xpbuh6wj/bafkreidbfw35qmxw6edrg5bbr3gc3fxqr5zv7juiruu7pyuf3zp2eusg2e)
