Hourly energy analysis and feasibility study of employing a thermocline TES system for an integrated CHP and DH network

作者：Tehrani S Saeed Mostafavi; Saffar Avval Majid^*; Kalhori Sahand Behboodi; Mansoori Zohreh; Sharif Mehdi

来源：Energy Conversion and Management, 2013, 68: 281-292.

DOI：10.1016/j.enconman.2013.01.020

• Thermocline hot water storage tank
• Combined heat and power
• District heating network
• Annual efficiency
• Feasibility study
• Hourly simulation

The employment of a TES system to improve the performance of a DH network integrated with a CHP station is investigated. Thermal energy demand fluctuations is the main issue threatening the viability of CHP/DH projects; therefore, TES facility can be coupled with CHP plant by a smart operation strategy to match the production and consumption profiles, and result in better consequences. To evaluate the system performance and energy saving potential, the hourly simulation of a thermocline hot water storage tank coupled with CHP/DH network is carried out, considering annual thermal load of the DH network. Optimal TES size is investigated from energetic, environmental and economical viewpoints. Results depict that by coupling five 1100 m(3) hot water storage tanks with CHP/DH plant, the annual CHP efficiency increases by 1.12%, and annual fuel consumption rate and CO2 emissions decrease by 2.6%.

• 出版日期2013-4