Cycling Thermal
 |
US $192.79
Energy From The Ocean
Alternative Energy from the Ocean
Ocean Thermal Energy Conversion (OTEC) was conceived of by the French engineer Jacques D'Arsonval in 1881. Even so, at the time of this writing the Natural Energy Laboratory of Hawaii is home to the only operating experimental OTEC plant on the face of the earth. OTEC is a potential alternative energy source that needs to be funded and explored much more than it presently is. The great hurdle to get over with OTEC implementation on a wide and effectively useful level is cost. It is tough to get the amount paid down to a reasonable level as a result of the processes presently utilized to drive OTEC. Ocean thermal energy would be clean burning and not add pollutants into the air. However, as it presently would need to be set up with our current technologies, OTEC plants would have the ability for disrupting and perhaps damaging the local environment.
There are three sorts of OTEC.
"Closed Cycle OTEC" uses a low-boiling point liquid such as, as an example, propane to act as an intermediate fluid. The OTEC plant pumps the warm sea water into the reaction chamber and boils the intermediate fluid. This results in the intermediate fluid's vapor pushing the turbine of the engine, which therefore generates electricity. The vapor is then cooled down by fixing cold sea water.
"Open Cycle OTEC" isn't that different from closed cycling, except in the Open Cycle there is no intermediate fluid. The sea water itself is the driver of the turbine engine in this OTEC format. Warm sea water discovered on the surface of the ocean is turned into a low-pressure vapor under the constraint of a vacuum. The reduced-pressure vapor is released in a focused area and it has the strength to drive the turbine. To quiet down the vapor and create desalinated water for human ingestion, the deeper ocean's cold waters are put into the vapor after it has generated sufficient electricity.
"Hybrid Cycle OTEC" is certainly just a theory in the mean time. It seeks to explain the way that we might be able to make maximum usage of the thermal energy of the ocean's waters. There are actually two sub-theories to the theory of Hybrid Cycling. The first involves using a closed cycling to generate electricity. This electricity is in turn used to create the vacuum environment needed for open cycling. The second component is the integration of two open cyclings such that twice the volume of desalinated, potable water is intended that with one open cycle.
Additionally being employed for generating electricity, a closed cycle OTEC plant can be utilized for treating chemicals. OTEC plants, both open cycling and close cycling kinds, are likewise able to be utilized for pumping up cold deep sea water which can then be employed for refrigeration and air conditioning. What is more, during the moderation period when the sea water is surrounding the plant, the enclosed are can be used for mariculture and aquaculture projects like fish farming. There is clearly quite an range of products and services that we might be able to derive from this secondary energy source.
This article is presented to you by electronic cigarette reviews, blu e cigarette reviews, and e cigarettes choice review.
Calculate the annual heat input, the steam cycle thermal efficiency, and the overall thermal efficiency for th?
A combined cycle power plant includes two 100 MW gas turbines and one 180 MW steam turbine. The plant operates with a 75% capacity factor, and is fueled by natural gas. The gas turbine cycle has a thermal efficiency equal to 25%. Calculate the annual heat input, the steam cycle thermal efficiency, and the overall thermal efficiency for the power plant. Assume the HRSG operates with 100% effectiveness (no stack losses). (Ans. 17.9 x 106 MBtu , 0.30, 0.475)
Annual Heat Input = (0.75*2*100/0.25)*1000*3600*24*365/1.055/1000000 = 17.935 x 10^6 MBtu
- Heat Input is 600 MW
Steam Cycle Thermal Efficiency = 180/600 = 0.30
Overall Thermal Efficiency = 0.75*(200+180)/600 = 0.475
The ultimate last minute Holiday gift guide for the runner in your life (EverymanTriathlon)
It's not always easy to bundle up and brave the elements during the off-season
but I believe the items below will help. And as always, most of these items
should fit into your Christmas sock over the fireplace. Happy holidays....
How Thermal Cycling Works
You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
Comments are closed.