$40.99 Buy It Now or Best Offer
free,30-Day Returns
Seller Store wfyb
(246571) 99.7%,
Location: San Diego, California
Ships to: US,
Item: 143820018384
Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Return policy details:
MPN:FA.MT.044
Age Level:8-11 Years
Size:198mm*100mm*90mm
Fitment:Christmas gift, Model Educational, Toy
wfyb:wfyb
Type:Module
STORE HOME ALL ITEMS HOT ITEMS ABOUT US ADD TO FAVS FEEDBACK CONTACT US Hot Air Stirling Engine Model Toy Engine Generator MotorWith LED Light Gift Burn the test tube with an alcohol lamp for about two minutes, and then use your hand to help turn the wheels,and then the machine will run. Features: Engine principle is intuitive, educational toys. Exquisite workmanship made, high grade quality, good for gift presentation as well powerful, ready to run, good for physics teaching demonstration. It can effectively cultivate children’s interest in learning can also be used for teaching purpose, more intuitive and easy to understand. This engine is perfectly for kids over 12 years old. What is the stirling engine? A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work.The engine is like a steam engine in that all of the engine\’s heat flows in and out through the engine wall. How it works? This is traditionally known as an external combustion engine in contrast to an internal combustion engine where the heat input is by combustion of a fuel within the body of the working fluid. Unlike the steam engine’s use of water in both its liquid and gaseous phases as the working fluid, the Stirling engine encloses a fixed quantity of permanently gaseous fluid such as air or helium. As in all heat engines, the general cycle consists of compressing cool gas, heating the gas, expanding the hot gas, and finally cooling the gas before repeating the cycle. Note: Please adopt 95% to highgrade alcohol to be the fuel to make sure the air tank can get more temperature, and drive the stirling engine. Please do not full fill the alcohol. After the alcohol lamp burn for about 2 minutes, please stir the Flywheel. Children accompanied by adults and parents to play. Please do not touch the cylinder after heated. If the alcohol is spill, please use wet cloth to put out the fire. SKU# Net weight Shipping weight FA.MT.044 31.46 oz 33oz X – ALL BOX Payment Payment: Paypal Preferred. Local pickup NOT available at this time. Shipping Shipping: We process your order within 1 business day upon payment(note: NOT counting holidays or weekends). International shipping also available, please note by default all international packages does not come with tracking unless upgraded to priority mail. Package transit time: please expect 3-7 business days within US, 10-20 business days to Canada, up to 25 business days all around the world. RETURN & REFUND Return & Refund: Please read the item description and check the pictures carefully before bidding. Return or refund is available only if item DOA or there’s error in item description causing the item not fitting your need. In such cases, seller pays for all related shipping cost if any. Returns are also acceptable if buyer purchased this by mistake and item still in good condition for reselling. Buyer is responsible for all related shipping cost. FeedbackWe maintain high standards of excellenceandstrive for 100% customer satisfaction!Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. ABOUT US High Quality ETL/CSA/CE/NSF/FCC – We passed every evaluation of pool products, even ASTM which for pool alarm in USA laboratory.. Customer – Service We value the service we provide and our loyal returning customers can always expect some appreciation from us, like a future service, discount or a gift. Affordable Prices We aim to make our service as reasonably priced as possible. That’s why we cut on all unessential business expenses… STORE HOME ALL ITEMS HOT ITEMS ABOUT US ADD TO FAVS FEEDBACK CONTACT US Copyright © 2017 wfyb. All Rights Reserved.
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