Product Review
This Stirling engine is driven by the Temperature Differential between the top and bottom panels. The simplest way to create enough temperature differential is placing it atop a mug of hot water. Rotating speed highly depends on the differential: the higher, the faster. Our experiment indicates that it can rotate at a speed of around 600-1000 RPM when placed on a mug of boiled water.
The Operating Temperature Differential of this model is around 27-34°F, much lower than most of the engines on the market. It can continuously rotate for 20-25 minutes on a cup of 140°F water, safer for kids. Please note when you use 140°F water (its steam actually) within a 250ml tea cup as heat source, the temperature of bottom panel is about 122°F.
Our technical team has taken several effective steps to improve its performance: employ magnets to interact between power piston and displacer to eliminate mechanical friction effectively while make the whole structure simple and stable; a self-lubricated graphite power piston to reduce friction and increase robustness; a stainless steel string as connecting rod between the crank on the flywheel and the power piston to reduce more friction(less contact area). It will be an eye-catching desktop toy & gift for everyone.
Features:
Brand: DjuiinoStar
Model: DLTD-203
Max speed: around 600-1000 RPM
Operation Temperature Differential: about 27-34°F
Continuous rotation time on a cup of boiling water: about 60-100 minutes
Status: assembled
Overall dimensions: 3.98x3.98x3.78 inch (L/W/H)
Net Weight: 0.41lb
- ★EASY TO PLAY: this engine is powered by the temperature differential between the top and bottom panels. Just take it out of the box and put it on a mug of hot coffee, wait for seconds, then give the flywheel a gentle turn and you're up and running! The start temperature differential between the two panels is around 20°C/68°F, lower than most of the engines on the market.
- ★STIRLING ENGINE OF HIGH PERFORMANCE: compared with traditional engines, this one runs smoother and is stabler: use hardened power piston(less friction & unbreakable); stainless steel string as connecting rod connecting the flywheel and the power piston(less friction); two little magnets on the power piston and displacer interact with each other as connecting rod to minimize mechanical friction while simplifying the structure in a graceful way.
- ★A FANCY DESKTOP TOY: This stirling engine runs rapidly and quitely (compare to other LTDs; please don't compare it with your watch; it's an engine and it does make noise). In addition, we use better materials with special surface treatments to make it look prettier and have a higher performance.
- ★A NOVELTY FOR EVERYONE: when having friends at home, it will definitely be an eye catcher; kids will be excited. It's also a great entertainment for people in the office, an innovative desk piece.
- ★WIDE APPLICATIONS/GREAT GIFT: it will be a remarkable gift for anyone interested in science; a great conversation piece that could be used as teaching tool on demonstrating physics knowledge; enable kids to think about basic principles of the universe. Especially for those who owned Stirling engines before, try this one.
