physics

Miraah

Miraah is a physics 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 Miraah rather than just read about it. In short: Miraah is a solar thermal energy plant that is under construction in Oman for the production of steam for solar thermal enhanced oil recovery. In July 2015, Petroleum Development Oman and GlassPoint Solar announced that they signed a $600 million agreement to build the 1 GWth solar field.

Key takeaways

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

Reference excerpt

Miraah is a solar thermal energy plant that is under construction in Oman for the production of steam for solar thermal enhanced oil recovery. In July 2015, Petroleum Development Oman and GlassPoint Solar announced that they signed a $600 million agreement to build the 1 GWth solar field. The project will be one of the world's largest solar field measured by peak thermal capacity. The plant uses large mirrors to focus sunlight and convert oilfield water into steam, which is then used to extract viscous or heavy oil from the ground. This method is used as an alternative to steam generated from the burning of natural gas.

Overview Miraah will be one of the world's largest solar plants, with a solar thermal capacity of 1,021 MW. Construction on the project began in October 2015, with first steam produced in November 2017. A few months later, in February 2018, the facility was officially inaugurated. The project has a daily steam output of up to 6,000 tons, translating into annual gas savings of 1.6 TWh (5.6 trillion BTU) and annual CO2 emission savings of 300,000 tons. The 1 GWth project will reduce the amount of natural gas used to generate steam for thermal enhanced oil recovery (EOR). In thermal EOR, steam is injected into an oil reservoir to heat the oil, making it easier to pump to the surface. Miraah will generate an average of 6,000 tons of solar steam each day, providing a substantial portion of the steam required at the Amal oilfield operated by Petroleum Development Oman (PDO). The enclosed trough solar field uses curved mirrors to focus sunlight – rather than using heat from burning natural gas – onto a pipe filled with water. The concentrated sunlight boils the water to create steam, which is fed directly to the oilfield's existing steam distribution network. In November 2017, GlassPoint and Petroleum Development Oman (PDO) completed construction on the first block of the Miraah solar plant safely on schedule and on budget, and successfully delivered steam to the Amal West oilfield.

References

Illustrations

Worked examples

Example 1 — a first encounter with Miraah

Start with the simplest possible case. Write down what Miraah claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 Miraah 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 Miraah 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 Miraah

In research: Miraah appears in physics 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 Miraah 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: Miraah is common in secondary-school and first-year university syllabi. It links to neighbouring topics Energy infrastructure in Oman, Solar power, so understanding it makes those chapters shorter.
In everyday life: Look for Miraah 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 Miraah in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Miraah 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 Miraah out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Miraah in simple terms?

Why does Miraah matter?

Because it connects several physics 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 Miraah?

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 Miraah.