Invention Grant
- Patent Title: Density engines and methods capable of efficient use of low temperature heat sources for electrical power generation
- Patent Title (中): 能够有效利用低温热源进行发电的密度发动机和方法
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Application No.: US13859694Application Date: 2013-04-09
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Publication No.: US09243609B2Publication Date: 2016-01-26
- Inventor: Matthew F Dunn
- Applicant: Matthew F Dunn
- Main IPC: F03C1/00
- IPC: F03C1/00 ; F15B7/02 ; F03B17/02

Abstract:
Systems and methods to convert low temperature solar thermal or waste heat sources for electric power generation, by integrating available technologies with a unique, efficient combined cycle. The device consists of mobile pods immersed within a thermal sink fluid reservoir. A vapor cycle converts thermal energy to buoyant potential energy by inducing density and volume changes of the mobile pods through discrete phase changes of a refrigerant working fluid. Buoyant potential energy is then converted to electrical power through motion of the entire pod within a thermal sink pressure gradient.
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