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原文传递 Operational Characteristics of a Liquid Nitrogen Powered Automobile

题名：	Operational Characteristics of a Liquid Nitrogen Powered Automobile
作者：	Vitt, Peter D;
关键词：	HEAT EXCHANGERS, PROPULSION SYSTEMS, TEST VEHICLES, LIQUID NITROGEN, PASSENGER VEHICLES, RANKINE CYCLE, MATHEMATICAL MODELS, THESES, LOW PRESSURE, HIGH PRESSURE, GASES, COSTS, ENVIRONMENTAL IMPACT, FLUIDS, ROADS, EXPANSION, LIQUID ROCKET FUELS, MOTORS, ENERGY STORAGE, CRYOGENICS, ROCKET PROPULSION, AIR HEATERS.
摘要：	The University of Washington is studying a zero-emission vehicle concept, the cryogenic automobile. This propulsion concept uses a cryogenic liquid as its energy storage medium, and offers environmental and economic benefits over current alternative vehicles. The University of Washington is investigating the use of nitrogen, stored in liquid state, as the working fluid in an open Rankine cycle. The liquid nitrogen is first pressurized, then vaporized and superheated in an ambient air heat exchanger. The resulting high pressure gas is injected into an expander which produces the system's motive work. The spent, low pressure gas is exhausted to the atmosphere. A test vehicle was assembled and is being used to learn about liquid nitrogen propulsion. The road performance of cryogenic automobiles was predicted using a mathematical model. The model can be modified for a variety of design choices and configurations. The performance of the test vehicle validates the heat exchanger concept and directs future efforts toward development of a better nitrogen expansion motor. This thesis describes the construction and operation of a liquid nitrogen powered automobile. Operational characteristics like road performance, maintenance, cost, and environmental impact are also explored.
总页数：	83
报告类型：	科技报告