What I wish to know is simply: "COULD a solar powered stirling engine be used to power another stirling that'd act as a heat pump for cooling a refrigerator or even as an air conditioning unit?".
Simple yes or no answer could suffice, but let's expand that with further considerations:
- What would be the power input requirements of a stirling heat pump to cool a "standar size" fridge?
- And for a small room?
- Even a few degrees drop at least?
- Are such power outputs achievable using a solar powered stirling? How about using several? Just about how many really?
- Are you considering home made (poor efficiency) engines or high quality engines with machined parts and pressurized Helium?
- How would such a setup fare against the efficency of usin solar panels to run a conventional electrically powered AC unit or regrigerator?
- How would they compete in economical terms? Would it be at least as good as to make a -small- portable solar powered stirling refrigerator plausible?
- Yes, I'm a complete noob regarding Stirling engines, besides reading several posts and watching plenty of videos
- No, English is not my first language, so apologies if I have commited some horrible mistake in my writing
- Yes, I have been vague in my definitions and have not done any math to tackle the problem, I care more for your views on the matter
- I've seriously seen several variations of this idea posted around the web (some even on this forum) but the answer is never quite clear, so please, if you feel you could shed some light on this matter, please share your thoughts!
- Yes, I do know there used to exist a commercial brand of portable small refridgerator that used batteries to power a stirling heat pump for cooling, but the route I want us to examine is Sun->StirlingEngine->StirlingHeatPump->ClosedSpaceTemperatureDrop.