Most effective usage of Stirling engines by Solar power system
Most effective usage of Stirling engines by Solar power system
Author: David Judbarovski, systems engineering, principle inventor
Abstract
Planar mirror redirects solar rays on a motionless dish concentrator of about 2.5 m2. In its turn, a small motionless planar mirror at focal spot of the said dish is redirecting the solar rays downward on a hot part of a Stirling engine generator placed on the ground and creating electricity, can be summarized for the grid. It is much cheaper and simpler in building and treatment and most energy effective than any other solar power systems.
For example, for Vilnus region in Lithuania, 7.5 months of snowless season annually, and average 13.5 hr. daily of effective concentration with 50% sky clearness and by 2.5 m2 dish solar concentrating system of $ 30.0/m2, $ 50.0/kW of Stirling engine of its 35% energy efficiency and $ 90.0/kW of electric generators, and $ 400.0/kW of secondary battery storage to support grids by conventional fueling, all of big order and 6 years of payback, so
(30 * 2.5 + 50 + 90 + 400) * 2.5 * 0.35 / 6 yr. = $ 90 CAPEX for 7.5 * 30 * 13.5 * 0.5 * 0.35 * 2.5 = 2660 kWh annual solar electricity, so
$ 90 / 2660 = 3.4 cent /kWh being comparable with its support by conventional fueling, and after 6 years of payback period the said electricity would be practically free for next about 10 years of its lifetime
Comments
Post a Comment