Pendulum Stirling Engine with Generator and LED Bulb Dual-Cylinder Hot Air Model 16 x 8.7 x 11 cm Metal Gold Physics Experiment
You already have the maximum available quantity in your cart.
This dual-cylinder pendulum Stirling engine is a functional model of a hot air engine with external combustion, which visually demonstrates the conversion of heat into motion and subsequently into electricity. The two cylinders are positioned side by side on a common metal base, and their pistons transfer motion through a pair of pendulums to the flywheel. The model measures 16 x 8.7 x 11 cm, making it comfortably fit on a work desk, shelf, or in a display case. The gold metal parts combined with the silver base serve as both a technical decoration and an educational tool. It is suitable for enthusiasts of physics, engineering, and modelling, as well as an interesting gift.
Heating is provided by two alcohol burners, which are placed under the hot ends of the cylinders. Once the air in the cylinders is heated, simply give the flywheel a light spin and the engine will start running on its own. The flywheel drives a small generator on the base through a rubber belt, which produces current for the connected LED bulb. Thus, the entire chain from heat to mechanical movement to light can be observed on one model. The pendulums, connecting rods, and flywheel are clearly visible, making it easy to explain how the individual parts move in relation to each other and why the engine only runs when there is a temperature difference.
- Type – functional model of a Stirling hot air engine with external combustion
- Design – dual-cylinder engine with pendulums and flywheel
- Dimensions – 16 x 8.7 x 11 cm
- Material – metal
- Colour – gold engine parts and silver base
- Power Source – heat from two alcohol burners
- Output – generator driven by a belt from the flywheel and LED bulb
- Usage – physics experiments and teaching, and technical decoration
- Package Contents – model of a dual-cylinder Stirling engine with generator on a metal base and LED bulb, and 2 alcohol burners with wicks (alcohol not included)
Alcohol, which is not included, is poured into the burners. Use the engine on a stable, non-flammable surface, away from flammable objects, and always under the supervision of an adult. The hot ends of the cylinders remain warm for some time after being turned off, so do not touch them until they have cooled down. Extinguish the burners after use by placing the lids on and allow them to cool. It is advisable to occasionally dust and lightly lubricate the moving parts to ensure the engine runs smoothly.
The pendulum Stirling engine combines a functional physics experiment with the attractive appearance of a metal model. With two cylinders and pendulums, the motion of the engine is clearly visible, and the transfer of power through the belt to the generator can be easily tracked. The lit LED bulb is direct evidence that the heat of the flame has been converted into electrical energy. This model will be appreciated by students, teachers, parents with children, and adult collectors of technical toys. The metal construction with a sturdy base keeps the model stable in place while in operation.
Delivery
Delivery to address€1.59
Estimated delivery: 16 – 27 November
Shipped from China
You only pay for delivery once per order, whatever its size.
We will email you the tracking number as soon as the seller makes it available.
Delivery is only possible to addresses in Ireland.
Customs and import VAT: if the goods in a parcel are worth up to €150, customs duty and import VAT are already included in the price. If the value is over €150, the carrier will charge you import VAT on delivery and, where applicable, customs duty and a customs clearance fee. Send us the receipt – we will reimburse you the full amount. You can find more information in our Terms and Conditions.
Need more information? Read our article Delivery and Payment.
Returns and Exchanges
Shop with confidence – LUNZO guarantees that your purchase goes smoothly. You arrange returns and exchanges directly with us, so there is nothing to sort out with the seller.
Returns30 days to return without giving a reason
Withdrawal period30 days from receipt of the goods
Deadline to send the goods backWithin 14 days of withdrawing from the contract
Return shipping costsYou pay the postage for sending the goods back to Spain. With An Post (Standard Post), returning a parcel of up to 2 kg to Spain costs about €30. We charge no other fee.
RefundWithin 14 days of your notice of withdrawal, using the same payment method you used for the purchase. If you return the whole order, we will also refund the delivery cost.
Crediting of the amountUsually 2–10 working days, depending on the payment method
Product conditionYou may unpack the goods and try them as you would in a shop, and you can return them even without the original packaging
Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
SpainReturns centre in Spain operated by Qxbox, an e-commerce logistics provider and logistics partner of the sellers on our platform.
How do I return goods?
- Email us at info@lunzo.ie with your order number and the items you are returning.
- Pack the goods and send them by post to the returns address in Spain.
- Send us the proof of dispatch with the tracking number – this lets us refund you without waiting for the parcel to arrive.
Faulty goodsUp to 6 years to claim for faulty goods
Did the goods arrive damaged, do they not work, is something missing from the parcel or do they not match the description? We will sort it out.
Period for claiming a faultUp to six years from delivery of the goods
RefundWithout undue delay once the claim has been settled, using the same payment method you used for the purchase
How does it work?
- Email us at info@lunzo.ie with your order number and a description of the problem, and attach photographs or a video.
- We will assess it and suggest a solution. Photographs are usually enough – please do not send the goods back until you have received instructions from us.
- We will settle your claim within 30 days at the latest – with a new item, a price reduction or a refund.
If the goods need to be sent back, we will refund the postage for a valid claim (just provide the receipt).
ExchangesA different size, colour or variant
Write to us within 30 days of receipt at info@lunzo.ie with your order number and the variant you are interested in. We usually reply within 24 hours.
If the variant is available, we will send you instructions for the exchange. You pay the cost of sending the original item back; the new variant will be sent to you at no further charge.
Need more information? Read our articles Returns and Exchanges and Faulty Goods.
Payment methods
Credit / debit card
Pay with your Visa or Mastercard through a secure payment gateway. Payment goes through instantly, so we can process your order straight away.
Apple Pay
Pay with a card saved in Apple Wallet on your iPhone, iPad or Mac. You confirm the payment with Face ID, Touch ID or your passcode.
Google Pay
Pay with a card saved in your Google account, on an Android phone or in the Chrome browser. You never have to enter your card number.
Bank transfer
Once you complete your order, we will send you the details for the bank transfer. Your order will be dispatched as soon as the payment reaches our account.
Revolut Pay
Pay with your Revolut account – simply confirm the payment in the Revolut app, without entering any card details. Payment goes through instantly.
Payment is made through a secure payment gateway and your card details are never stored anywhere on our side. We do not charge a fee for any payment method.
Need more information? Read our article Delivery and Payment.
About the seller
This product is sold and shipped by an external seller. LUNZO guarantees you a safe purchase: online payments go through a secure payment gateway, and you handle your order, returns and complaints with us.
The following information has been provided by the product seller, who is responsible for its accuracy. The seller acts as a trader.
Seller:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
Manufacturer:
Gansu Constar Technology Group Co., Ltd.
Address: No.10, Chuangxin South Road, Baiyun District, Baiyun, Gansu, China
E-mail: ksdjt@foxmail.com
Telephone: +86 156 9392 3686
EU responsible person:
BioDomi GmbH
Address: Schokoladenring 13, 65795 Hattersheim am Main, Germany
E-mail: arcontact@biodomieurope.de
Telephone: +49 178 5749814
All products from this seller