NASA Technical Reports Server (NTRS) : Technical pdf

NASA Technical Reports Server (NTRS) : Technical

More Book Details

Description of the Book:

Bottoming cycle concepts for heavy duty transport engine applications were studied. In particular, the following tasks were performed: (1) conceptual design and cost data development for Stirling systems; (2) life-cycle cost evaluation of three bottoming systems – organic Rankine, steam Rankine, and Stirling cycles; and (3) assessment of future directions in waste heat utilization research. Variables considered for the second task were initial capital investments, fuel savings, depreciation tax benefits, salvage values, and service/maintenance costs. The study shows that none of the three bottoming systems studied are even marginally attractive. Manufacturing costs have to be reduced by at least 65%. As a new approach, an integrated Rankine/Diesel system was proposed. It utilizes one of the diesel cylinders as an expander and capitalizes on the in-cylinder heat energy. The concept eliminates the need for the power transmission device and a sophisticated control system, and reduces the size of the exhaust evaporator.

Results of an economic evaluation indicate that the system has the potential to become an attractive package for end users

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 9/1/1987
• Year: 1987
• Book Topics/Themes: NASA Technical Reports Server (NTRS), DIESEL ENGINES, ECONOMIC ANALYSIS, ENGINE DESIGN, RANKINE CYCLE, STIRLING CYCLE, TRUCKS, WASTE ENERGY UTILIZATION, COST ANALYSIS, HEAT EXCHANGERS, LIFE CYCLE COSTS, MAINTENANCE, MANUFACTURING, WASTE HEAT, Kubo, I

An excerpt captured from the PDF book