District heating is a system for distributing heat generated in a centralized location for residential and commercial heating requirements such as space heating and water heating. The systems usually include inter seasonal energy storage insulated pipes. District heating systems consist of feed and return lines.
China's urban central heating infrastructure has been developed rapidly since the 1950s. China's regional heating demand in the past decade has maintained a linear growth. The countrys 463 GWth of installed capacity made it by far the largest district heating market worldwide. It is estimated that “nearly 55 % of the total heating surface in northern China is supplied by district heating,” according to Euroheat & Power (March 2015).
SOLAR HEATING IS THE PERFECT MATCH FOR DISTRICT HEATING
A large-scale solar heating installation is the perfect supplement to a district heating plant. No matter what type of fuel used, it will lead to a lower and more stable heating price and it will prolong the lifetime of the plant. Arcon-Sunmark has installed more than 80% of the world’s largest solar heating plant connected to district heating. A solar heating system is containing collectors, heat exchangers, heat storage devices, control systems, pipe networks and more.
Solar heating in combination with district heating has a high market share in developed European countries like Denmark and Germany. Now, also the Chinese market has started to explore the benefits from this source of energy. An example is the solar heating installation in Hebei University of Economics and Trade, which is Asia's largest solar heating system. Also exciting pilot projects has now been installed.