You are given “power plant produces 12 million kilowatt-hours (12,000,000 kWh) of electricity each day” AND “10,000 BTU” of heat is required to produce an output of 1 kWh of electricity”.
What is heat rate in powerplant?
The heat rate is the amount of energy used by an electrical generator/power plant to generate one kilowatthour (kWh) of electricity. The U.S. Energy Information Administration (EIA) expresses heat rates in British thermal units (Btu) per net kWh generated.
How do you calculate the heat of a power plant?
One of the simplest ways to calculate your NPHR is to divide the Btu/hr of fuel heat input by your net generation (electricity and steam to the customers) in terms of kW.
How much gas does a power plant use?
Second: A high efficiency, natural gas-fired combined-cycle power plant might consume about 7000 Btus of gas to produce one kilowatt-hour of electricity. That would be about 7 cubic feet of natural gas. It would therefoe take about 7000 cubic feet of gas to produce one megawatt-hour.
What is the average heat rate?
For existing coal-fired power plants, heat rates are typically in the range of 9,000 Btu/kWh to 11,000 Btu/kWh. A plant with the U.S. industry average heat rate of 10,300 Btu/kWh is operating with an overall plant efficiency of about 33% (3,412/0.33 = 10,339).
What is a good heat rate?
Heart rate, also known as pulse, is the number of times a person’s heart beats per minute. Normal heart rate varies from person to person, but a normal range for adults is 60 to 100 beats per minute, according to the Mayo Clinic.
What is the formula of heat rate?
Using the well-known definition of efficiency and heat rate— h = P/HC and HR = 3,412/h Btu/kWh—it can be shown that the value of 1 Btu/kWh reduction in heat rate is given by Equation 2.
Which type of power plant is most efficient?
Today we announced that the Chubu Electric Nishi-Nagoya power plant Block-1 – powered by GE’s 7HA gas turbine – has been recognized by GUINNESS WORLD RECORDS™ as the world’s Most efficient combined-cycle power plant, based on achieving 63.08 percent gross efficiency.
What is the difference between heat flux and heat rate?
Heat flux or thermal flux is the rate of heat energy transfer through a given surface, per unit surface. … Heat rate is a scalar quantity, while heat flux is a vectorial quantity. To define the heat flux at a certain point in space, one takes the limiting case where the size of the surface becomes infinitesimally small.
How much gas does it take to produce 1 kWh?
Natural Gas & Oil
Natural Gas: It takes 0.01003 Mcf (1,000 cubic feet) to make 1 kWh. This includes power plant inefficiency.
How much is gas per kWh?
Both gas and electricity consumption is measured in kWh. The unit rate you pay will vary depending upon the energy price plan you’re on, and even the region you live in, but the average cost of electricity per kWh is 14.37p, and the average gas cost per kWh is 3.80p.
How efficient are natural gas power plants?
A gas-fired plant was about 42% efficient. And in natural gas combined-cycle power plants—in which waste heat from a natural gas turbine is used to power a steam turbine—generation may be as much as 60% efficient.
How much energy does 1kg of coal produce?
With a complete combustion or fission , approx. 8 kWh of heat can be generated from 1 kg of coal, approx. 12 kWh from 1 kg of mineral oil and around 24,000,000 kWh from 1 kg of uranium-235.