An experimental Ocean Thermal Energy Conversion (OTEC) power plant in Hawaii became operational in 2015. The...
An experimental power plant at the Natural Energy Laboratory of Hawaii generates electricity from the temperature gradient of the ocean. The surface and deep-water temperatures are 30 ∘C and 5 ∘C, respectively What is the maximum theoretical efficiency of this power plant? If the power plant is to produce a power of 180 kW , at what rate must heat be extracted from the warm water? Assume the maximum theoretical efficiency (in watts). At what rate must heat be absorbed...
A proposed ocean thermal-energy conversion (OTEC) system is a heat engine that would operate between warm water (15°C) at the ocean's surface and cooler water (3°C) 2,000 m below the surface. What is the maximum possible efficiency of the system? Enter your answer accurate to two decimal places.
04: An Ocean Thermal Energy Converter (OTEC) pumps 200 m/s through a heat exchanger in which the temperature (expressed in Kelvins) drops by 1 %. All the heat extracted is delivered to the ammonia boiler. The ammonia temperature, THT, at the turbine inlet is equal to the mea temperature of the water in the warm water heat exchanger minus 1 K. The temperature, Tcr, of the ammonia leaving the turbine is kept at 10°C by the cooling effect of 250...
Calculate h1,h2,h3,h4 & Work turbine & Wpump from Rankine Cycle T1=5 Celisius & T2= 26.9 Celisius. ( Ammonia) is the fluid However, Lockheed Martin a company that has paired up with The Reignwood Group to build a commercial 10 MW OTEC system which will be the largest OTEC system in operation to date [4). This will be a floating platform constructed off the coast of China where conditions are prime for an OTEC plant, which means a warm surface water...
A proposed ocean power plant will utilize the temperature difference between surface seawater and seawater at a depth of 100 meters. Assume the surface temperature is 25° Celsius and the temperature at the 100-meter depth is 3° Celsius. 1. What is the ideal (Carnot) efficiency of the plant? 2. If the plant generates useful energy at the rate of 100 megawatts while operating with the efficiency found in part (a), at what rate is heat given off to the surroundings?...
A power plant has been proposed that would make use of the temperature gradient in the ocean. They system is to operate between 24.0°C (surface water temperature) and 4.95°C (water temperature at a depth of about 1 km). (a) What is the maximum efficiency of such a system? ............ % (b) If the useful power output of the plant is 85.0 MW, how much energy is absorbed per hour? ............. J (c) In view of your answer to part (a),...
Problem 24.1: please help!! Solar Thermal Energy 462 onsider a solur thermal elecinic plant built using a system of 2D concentrators that reflect sunight to a system of pipes carrying molten salt with concentration C # 200. Example 24.5 2D Concentrator Efficiency Optimization Wher is the optimal efficiency poxsibie (essaming an onbient temperoture of 300 K and incident sunight u 1000 W/r)? Solving eq (24.23) un encany gives 818 K At this temperature. Cartot efficiency is approximately 63% and about...