| 摘要 |
<p>The invention relates to a system for utilising solar heat, comprising at least one thermal solar collector which uses absorbed solar energy to heat up a thermal medium circulated in a thermal medium circuit. The invention is characterised in that a piston expansion machine is provided, arranged directly in said thermal medium circuit and having the thermal medium flow through it, or arranged in a secondary circuit and having an expansion medium flow through it, which expansion medium is circulated in said secondary circuit and is in thermally-transferring contact, via a heat exchanger, with the thermal medium, and said thermal medium or expansion medium expanding in the piston expansion machine, with mechanical work being performed.</p> |
