用常规方法传输热能,比如蒸气、热水等,在传输过程中热能散失很大。所以一般情况下传输热能只能是短距离的,而且输送管外面还要包上厚厚的保温层。美国桑地亚(Sandia)国家实验室正在研究一种能远距离传输热能的新技术。这种技术可使热能在传输过程中几乎不损耗,并且不需要保温层。该技术是一种利用化学物质,交替传输热能的方法。桑地亚国家实验室利用该技术已建立了一套传热系统,并准备在1987年开始进行较大规模的实 Transmission of heat using conventional methods, such as steam, hot water, heat loss in the transmission process is very large. So under normal circumstances, heat transfer can only be a short distance, but also outside the pipe wrapped in thick insulation layer. The Sandia National Laboratory in the United States is studying a new technology that can transport heat over long distances. This technology allows heat to be transmitted almost without any loss of heat, and does not require insulation. The technology is a way to use chemical substances to alternately transfer thermal energy. Sandia National Laboratory has used the technology to establish a system of heat transfer and is ready to start a larger scale in 1987