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Review: Sunnytech® Hot Air Stirling Engine Model Educational Toy Sc02
Review of the Sunnytech® Hot Air Stirling Engine Sc02
The Sunnytech Single Flywheel Hot Air Stirling Engine is a well-crafted, fully working model which demonstrates the operational principles of Stirling engines.
What is a Stirling engine?
A Stirling engine is an external combustion engine. That is, it is an engine that gets its energy from an external heat source, in contrast to the internal combustion engine where the heat input is generated within the engine itself.
The Stirling engine was invented in 1816 by Robert Stirling, who wanted to create an alternative to existing steam engines, whose boilers could often explode because of the high steam pressures used and the strength limitations of the materials available to engineers at the time.
How does a Stirling engine work?
Like all heat engines, the Stirling turns heat energy into mechanical energy. The key feature of the Stirling engine is that it uses a fixed amount of gas – usually air – enclosed in a sealed container, with the heat consumed by the engine applied externally. This means that the engine can run on just about any heat source, including coal or gas, solar energy, chemical reaction and nuclear energy. It can also work with very low temperature differentials, which means a Stirling engine could be powered by body heat or even the steam from a cup of coffee. And because it uses heat from a constant source and does not, like an internal combustion engine, rely on a succession of explosive ignitions, the engine runs very quietly.
The heat source used in the Sunnytech Single Flywheel Hot Air Stirling Engine model is supplied by a small methylated spirit burner, which comes included, and the engine’s output is delivered – as the name suggests – by a single flywheel.
The Single Flywheel Hot Air Stirling Engine is robustly constructed from steel, copper and aluminium, and comes fully assembled, which means that you can have it up and running within minutes of taking it out of the box. Just fill the burner with meths, light the wick, let the working fluid (air) heat up for 30 seconds, give the flywheel a spin, and off it goes.
The model’s main features are:
Specification: Single Flywheel Hot Air Stirling Engine
Model No.: SC02
Size: 130mm X 80mm X 115mm
Materials: Aluminium, Copper and Steel
The Single Flywheel Hot Air Stirling Engine is an ideal collector’s item for engineering enthusiasts, as well as an engaging educational demonstration model. Most importantly, it is lots of fun. It should, however, only be used under adult supervision, and it is not suitable for children under 10 years old.
Customer reviews of the Sunnytech Hot Air Stirling Engine are consistently excellent. People who have bought it are particularly impressed by its quality and performance. In today’s world, where everything is made from plastic, the look and feel of a solid, tactile piece of high-quality workmanship is immensely satisfying. It has an elegant design, is well engineered and constructed, and runs like a dream.
Review: Mamod TE1a Green Traction Engine
Review of the Mamod TE1a Green Traction Engine
When is a toy not actually a toy? When it is an actual steam engine in full working order, powered by its own boiler. This is the 1313 Steam traction engine from Mamod (model number TE1a Green), a replica model of a Victorian era English tractor engine that comes in black, with a British racing green boiler, and cheerful red wheels. There is also a version in brass with black wheels. This engine is modelled on the traction engines made by the iconic Doncaster Works, which also produced the famous Mallard and Flying Scotsman steam engines.
Traction engines powered their way along the roads, such as they were in the late 1800s, earning them the name of road locomotives, to differentiate them from railway locomotives. They pulled heavy loads and were a crucial cog in the industrialisation of nations. Their demise came in the early 20th century as the internal combustion engine replaced steam.
The 1313 is Mamod’s standard model traction engine in its range. It’s hugely popular and for good reason – this working model is affordable and perfect for beginner collectors, or as a gift to a youngster keen on Victorian engineering. It’s been made by Mamod in England for 50 years now, using the exact same design, although early models used methylated spirits for fuel. It isn’t unusual for owners to still have, and use, engines that had been brought 30, 40 or 50 years ago. These have become almost heirloom toys, with parents handing them down to their children, who also pass them on.
The Steam traction engine comes fully assembled and ready to go. Because it gets very hot, and has lots of sharp bits, not to mention the potential dangers of the steam and boiler, this toy is recommended for children aged 14 years and upwards.
The boiler is stoked through the solid fuel blocks provided with the engine, and once it gets sufficiently hot, the little engine will power along quite quickly. It also comes with Mamod oil for lubrication. You only need to add water to the boiler. However, you really need to put water in that is already boiling. Otherwise, you’re in for a bit of a wait for the steam to get up.
The engine is really robust, being made of heavy gauge steel and brass and a reasonable size at 10 inches long. For the metric minded, its full dimensions are 178mm x 137mm x 270mm. It’s also reasonably hefty at four pounds, or 200 grammes, but not as weighty as you might expect from such a little powerhouse.
This is simply a fun toy to play with. There is a sense of excitement from the steam coupled with the smell of the fuel burning, and the power of the traction engine as it moves along. It is also educational, helping youngsters understand the power and engineering of the great steam engines of our past.
Exact replica of a Victorian road locomotive
Steel and brass
Working steam engine with boiler
Moves at speed along the ground
1 x packet of solid fuel tablets
1 x bottle of lubrication oil
Weighs 200 grammes
Measures 178mm x 137mm x 270mm
For ages 14 up
Review: Wilesco D21 Steam Engine
Review of the Wilesco D21 Steam Engine
Wilesco D21 is an operating model of steam engine whistle. This Wilesco D21 is used to operate the mechanical workshops like a drill press, table saw, and grinder because this steam engine provides the output as mechanical energy. This steam engine whistle uses steam and steam is transformed by boiling water through the heat in the boiler of Wilesco D21.
How it Works
First thing first, you have to add the water in the boiler. Fill the boiler 2/3 at least and then apply boiler fill cap. That cap inserted over the boiler is also the whistle. Start burning the boiler now. You can burn the boiler through gas burner or solid fuel tablets of Esbit. Now you have to oil the piston and other parts of the Steam Engine. In the meanwhile, water gets boiled. Release steam through the piston to operate the engine and the workshop attached to it.
Appropriate Age Group
The manufacturer group Wilesco recommends this model D21 for the children of 12 years and more. But if your child is 10 years old and you feel that your child is sharper than the other kids of the same age and he can handle a bit of technicality then you can think of buying one for him as well. Wilesco Group recommends that D21 Steam Engine Whistle must be used under the direct supervision of an adult so that any discrepancies may be avoided. This product is strictly prohibited for the children of less than 36 months.
Wilesco D21 is a TUV (German Test Certificate) certified model of a Steam Engine Whistle. It has a metal body. No batteries are required to operate this steam engine model. You cannot operate Wilesco D21 by remote control. You can only run this steam engine model manually. This manual operation ability provides in-depth knowledge to a child operating this model.
Wilesco D21 has a firm body. Its body is made up of metal, and the presence of safety valve means this manufacturer does not compromise on quality. The pressure gauge can help you to be aware of the internal condition of the boiler. You can easily keep an eye on the readings to prevent any unpleasant incident. Wilesco D21 has a 500ml tank capacity which is more than enough for a child to operate its workshop using this steam engine model.
Steam Engine Model D21 by Wilesco is not very huge. It weighs only 2.7kgs, so the shipping costs are not massive. It is not very difficult for the children to handle it because the children of 10-12 years can easily handle this 3kg steam engine model by Wilesco.
There is no need to set up this Wilesco D21 because it is already assembled before delivery. When you receive this Steam Engine Model D21 by Wilesco, you may need to put on just a chimney and a couple of other things. So you have not to pay any setup cost if you purchase this Steam Engine Model.
In my opinion, the D21 Steam Engine Model is a fantastic design and a classy piece of product from Wilesco.
Review: Mamod SP4 Stationary Live Steam Engine
Review: Mamod SP4 Stationary Live Steam Engine
This beautiful model is the Mamod SP4 steam engine. You would expect an engine of any kind to not be too aesthetically pleasing, they are designed to be the power unit, not the focal unit everyone lusts after. However, second best is never good enough for Mamod and their live steam engine units always look and play the part.
This steam engine is engineered in England using the highest quality metals. Not straying far from the classic Mamod use of colours, the SP4 is made up of bold red, silver and black colours. These colours create a glossy and tasteful finish to the model. Each model is:
260 x 208 x 185mm
heavy duty brass boiler and piston & cylinder unit
a water gauge connected to the boiler
a chrome plated fire box
solid fuel, oil and filler funnel (for hours of fun running the unit)
The SP4 resembles an old fashioned steam engine that would have typically been used in the past to run a range of things: pumps, mills, machinery and more. Stationary engines had no purpose without the other pieces of equipment and Mamod knows this very well. Never missing an opportunity to allow their models the ability to mimic the real world from times gone by, Mamod has created the SP4 steam engine with the opportunity to connect with other models. This live steam engine can be used to power pieces from the 1336 WS1 workshop and running them has never been easier. The SP4 is already assembled, so you don’t need to be an engineer to work out how to run this engine. Simply add water, light the fuel and the engine will work. This would be great to connect to other pieces – you could be running your own mini mill in no time.
This engine is suitable for a huge range of people due to its versatility. If using alone to just appreciate the power unit, it’s a fantastic educational tool for little ones and adults alike. It is worth noting, however, that children under 14 years old should not be left unsupervised with this product. That’s nothing to worry about, though, because adults will have a great time teaching their children and grandchildren all about the times of the past! Your kids are going to come top of their history class with their new model. The unit is also a fantastic gift for hobbyists who already have units from the 1336 WS1 series. Once they acquire the Mamod SP4, they’ll be able to fit all the pieces together and they’ll help each other work! Even if the hobbyist in your life does not have any other Mamod models, this is most certainly still one to think about for them. It’s a given that engines of the past were only used to power other units, but Mamod have made that a thing of the past by creating an engine one can appreciate by itself and will look perfect amongst any model collector’s pieces.
If you’ve already got a collection of live models, but not a stationary engine, the SP4 should most certainly be at the top of your list!