At a power plant that produces 1 GW (109 watts) of electricity, the steam turbines take in steam at a temperature of 500°C, and the waste heat is expelled into the environment at 20° C.
(a) What is the maximum possible efficiency of this plant?
(b)Suppose you develop a new material for making pipes and turbines, which allows the maximum steam temperature to be raised to 600°C. Roughly how much money can you make in a year by installing your improved hardware, if you sell the additional electricity for 5 cents per kilowatt-hour? (Assume that the amount of fuel consumed at the plant is unchanged.)
PBIO1030 Fall 2016 Week 10 Learning Objectives Monday, October 24, 2016 (Read first page and section on Stimulants) 1. Name the three main categories of psychoactive plants. Stimulants Depressants Hallucinogens 2. Describe some benefits and side effects of stimulants. Benefits o Sense...