ENVS 010 Lecture Notes - Lecture 1: Internal Combustion Engine, Waste Heat, Working Animal

• School: SJSU
• Department: Environmental Studies, Department of
• Course: ENVS 010
• Professor: Rachel Lazzeri-Aerts

Document Summary

First machine to convert heat into work. Biomass (ie. trees) getting scarce in many places. Over the next ~200 years we developed many more way to use/create energy. Same energy lost at each step either as energy being used or a waste heat. 50% efficiency lot between extraction, refining, and distribution. 80% efficiency lost during conversion to power (ie. in engine) Car wheel get about 10% of the chemical energy in the oil! From a friendly neighbor, friendly with canada. Coal mining, extract less and less oil. 2020 is when we won"t have much oil left, coal. Mix of clay, water, sand, and bitumen. Less efficient, burns dirtier: impact climate change, temporary solution. Extract oil and natural gas from shale rock. Mirrors/lenses used to collect and concentrate a large amount of sunlight. Altamont wind farm: one of the oldest and largest wind farms in the u. s. Altamont: 2,000 old windmills being replaced with 100 new super windmills.