Portable Steam Unit
Portable Steam Unit
physics help (please explain processes!)?
1. You leave your 125 W portable color TV on
for 4 hours each day and you do not pay
attention to the cost of electricity.
If the dorm (or your parents) charged you
for your electricity use and the cost was
$0.2 /kW· h, what would be your monthly
(30 day) bill?
Answer in units of dollars.
2. Energy-efficient appliances are important in
today’s economy. Suppose that a lightbulb
gives as much light as a 100-watt bulb, but
consumes only 10 W while costing $5 more.
If electricity costs 4 cents per kilowatt-hour,
how long will the bulb would have to operate
to make up the difference in price?
Answer in units of hours.
3. How long does it take a 20 kW steam engine
to do 5.0 × 107 J of work?
Answer in units of s.
1)
125W = .125kW/hour
4 hours/day @ 30 days = 120 hours
120hours * .125kW/hour * $0.2/kW = $3
2)
What your really answering is how long it takes for a 100W light bulb to cost $5 (on your electricity bill)
So if you take your $5 * $0.04kWh = 125 This is how many hours it would take something running at 1kWh to cost $5 @ the price of $0.04/kWh
But you need to find how long for a 100W light bulb. 1000W=1kW so 1000 / 100 = 10
Take your answer of 125 and multiply it by 10 for a final answer of 1250 hours.
3)
Im unsure on your last one but hopefully this helps?
1 kWh = 3600000 joules/h. Therefore 20kWh = 72000000 joules/h
Jesse
Good Benefits of Portable Infrared Sauna
The concept of this type of portable infrared sauna may seem foreign to some, as most people are not even aware of the existence of a portable infrared sauna. It is not only do they exist, there are more than one type of the portable infrared sauna as well. This article will describe the benefits of a standard portable infrared sauna and why you should consider owning one.
The portable infrared sauna is a smaller version of a regular spa unit that requires nothing more than a space to put it in and a heater of some sort (usually an electric or gas rock heater) to steam it up. You can find a space inside your home, garage, shed or even your backyard – it does not matter, as long as you have the proper capacity and heating unit.
There are many health benefits of a portable infrared sauna. The steam can be relaxing and stress relieving, even releasing toxins and free radicals that may allow for better overall health. But did you know that a portable infrared sauna has all of the benefits of a regular sauna, and more? An infrared sauna controls the amount of heat, therefore making it safer and easier to breathe in than in a regular unit.
Infrared sauna allows heat to penetrate more than 1.5 inches (40 mm) into the body. Because the skin is the largest organ of the body, regularly sweating in a far infrared sauna can help decrease toxins and contribute to better health and vitality. Infrared rays help knock toxins loose from fat cells into the body, and those toxins are then released through sweating. This heals and stimulates tissues, and that is effective therapy for arthritis and tissue injuries. One of the ways that infrared sauna use is beneficial for a wide range of ailments is through the increase in circulation that it causes in the body. Increased circulation is often believed to be helpful in a variety of ways, and is generally regarded as a definate health benefit.
Visit Portable Infrared Sauna Website for more information.
Steam Buddy by Billy Mays As Seen On TV – Only $19.95
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