science

Ionic liquid piston compressor

Ionic liquid piston compressor is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Ionic liquid piston compressor rather than just read about it. In short: An ionic liquid piston compressor, ionic compressor or ionic liquid piston pump is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor. Principle An ionic liquid compressor takes advantage of two properties of ionic liquids—their virtually non-measurable vapor pressures and large temperature window for the liquid phase—in combination with the low…

Key takeaways

Ionic liquid piston compressor belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Ionic liquid piston compressor to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Ionic liquid piston compressor from memory before moving on to harder problems.

Reference excerpt

Principle An ionic liquid compressor takes advantage of two properties of ionic liquids—their virtually non-measurable vapor pressures and large temperature window for the liquid phase—in combination with the low solubility of some gases (e.g. hydrogen) in them. This insolubility is exploited by using the body of an ionic liquid to compress hydrogen up to 1000 bar (14,500 psi) in hydrogen filling stations. Linde's ionic liquid compressor reduced the number of moving parts from about 500 in a conventional reciprocating compressor down to 8. Many seals and bearings were removed in the design as the ionic liquid does not mix with the gas. Service life is about 10 times longer than a regular reciprocating compressor with reduced maintenance during use, energy costs are reduced by as much as 20%. The heat exchangers that are used in a normal piston compressor are removed as the heat is removed in the cylinder itself where it is generated. Almost 100% of the energy going into the process is being used with little energy wasted as reject heat. Not to be confused with the ion pump or the ionic liquid ring pump.

History

After the renewed interest in ionic liquids, research was done by proionic, an enterprise in the spin-off center "ZAT Center for applied Technology" of the University of Leoben. The system was demonstrated at Zemships.

See also Electrochemical hydrogen compressor Guided rotor compressor Hydride compressor Linear compressor Ganzair Compressor Timeline of hydrogen technologies

References

Illustrations

Ionic liquid piston compressor: University Of Leoben — University Of Leoben

Worked examples

Example 1 — a first encounter with Ionic liquid piston compressor

Start with the simplest possible case. Write down what Ionic liquid piston compressor claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Ionic liquid piston compressor before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Ionic liquid piston compressor ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Ionic liquid piston compressor

In research: Ionic liquid piston compressor appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Ionic liquid piston compressor in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Ionic liquid piston compressor is common in secondary-school and first-year university syllabi. It links to neighbouring topics Compressors, Hydrogen technologies, so understanding it makes those chapters shorter.
In everyday life: Look for Ionic liquid piston compressor outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Ionic liquid piston compressor in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ionic liquid piston compressor means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Ionic liquid piston compressor out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ionic liquid piston compressor in simple terms?

An ionic liquid piston compressor, ionic compressor or ionic liquid piston pump is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor. Principle An ionic liquid compressor takes advantage of two properties of ionic liquids—their…

Why does Ionic liquid piston compressor matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Ionic liquid piston compressor?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Ionic liquid piston compressor.