Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Specific Power shopping experience:

1. Compare - without doubt the biggest advantage that the Specific Power offers shoppers today is the ability to compare thousands of Specific Power at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Specific Power? Wrong! If the Specific Power is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Specific Power then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Specific Power? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Specific Power and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Specific Power wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Specific Power then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Specific Power site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Specific Power, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Specific Power, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

In engineering, specific power, also known as power per unit mass or power density, refers to the amount of power (physics) delivered by an energy source, divided by some measure of the source's size or mass. It is used to compare various power sources by a common figure representing their suitability for a particular role.

• Area: Wind turbines are often compared using a specific power measuring watts per square meter of turbine disk area, which is pi times the length of a blade squared. This measure is also commonly used for Photovoltaic modules, at least for typical applications.
• Volume: When measuring a heat engine, specific power is typically given in horsepower per cubic inch of engine displacement, or alternately kilowatts per litre. The result offers an approximation of the peak-power output of an engine. This is not to be confused with fuel efficiency, since high-efficiency often requires a lean fuel-air ratio, and thus lower power density. A modern high-performance car engine makes in excess of 1.65 hp/in³ (75 kW/L).
• Mass: When comparing battery (electricity), specific power refers to the power-to-weight ratio, measured in kilowatts per kilogram (generally, W/kg). Fuels are usually measured in terms of energy density, since the available power is usually not a limitation. A high-octane rating fuel actually burns more slowly, and due to engine dynamics this can actually allow an engine to produce more power. In high performance vehicles, the specific power determines the vehicle's acceleration. The specific power on a mass basis is also used to characterize solar panels for use in aerospace applications where this parameter is critical for an efficient launch.

References

In engineering, specific power, also known as power per unit mass or power density, refers to the amount of power (physics) delivered by an energy source, divided by some measure of the source's size or mass. It is used to compare various power sources by a common figure representing their suitability for a particular role.

• Area: Wind turbines are often compared using a specific power measuring watts per square meter of turbine disk area, which is pi times the length of a blade squared. This measure is also commonly used for Photovoltaic modules, at least for typical applications.
• Volume: When measuring a heat engine, specific power is typically given in horsepower per cubic inch of engine displacement, or alternately kilowatts per litre. The result offers an approximation of the peak-power output of an engine. This is not to be confused with fuel efficiency, since high-efficiency often requires a lean fuel-air ratio, and thus lower power density. A modern high-performance car engine makes in excess of 1.65 hp/in³ (75 kW/L).
• Mass: When comparing battery (electricity), specific power refers to the power-to-weight ratio, measured in kilowatts per kilogram (generally, W/kg). Fuels are usually measured in terms of energy density, since the available power is usually not a limitation. A high-octane rating fuel actually burns more slowly, and due to engine dynamics this can actually allow an engine to produce more power. In high performance vehicles, the specific power determines the vehicle's acceleration. The specific power on a mass basis is also used to characterize solar panels for use in aerospace applications where this parameter is critical for an efficient launch.

References

Specific power - Wikipedia, the free encyclopedia
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UK Generators Ltd , suppliers of diesel and petrol generator sets
This expertise is used to design and develop specific power solutions appropriate to the customers own requirements. Our bespoke solutions include numerous modification options and ...