A review of low-temperature return water heat and power cogeneration heating technology and operational characteristics
The principle of low-temperature return water cogeneration heat supply technology,the composition of the heat supply system,the energy efficiency evaluation index system,the economic evaluation of the heat supply system and the typical heat supply cases were introduced.The use of condensate heat supply and increasing the proportion of condensate heat supply significantly reduced the heat source heat supply equivalent electricity and reduced the cost of heat supply.The main factors affecting the heat source heat supply were the temperature of the circulating water,the amount of circulating water,and the steam turbine backpressure.It discusses the regulation methods of heat supply system,generally adopting three kinds of regulation methods,namely,quality regulation,quantity regulation and quality regulation with variable flow rate in phases.The mainstream technology of flexibility of heat supply units and other flexibility technologies were summerized(using the thermal inertia of heat networks and buildings to adjust peaks and utilizing the capacity of the return side of the long-distance pipeline network to store heat).It introduced the latest progress of the research on new energy heat supply technology was introduced.The issues that need to be researched on the low-temperature return-water cogeneration heat supply technology in the future also had been determined.
万方数据
维普
