Simulating load variations of an integrated process operating with heat pump in order to improve design and control strategies
Energy and exergy analysis coupled with the pinch analysis method often leads to integrated solutions for a process design.However,if the overall design of the process is optimized its robustness and its driving could be their major weaknesses.For processes treating non homogeneous solid materials these difficulties are increased because the product load or properties could vary.This paper studies an integrated heating and cooling process where the largest part of energy recovery is due to solid to liquid heat exchanger and remaining energy is provided by heat pumping.The aim is to analyze the impact of load variation in order to find an adequate design and control strategy.The process model,based on energy balances,is used for dynamic simulations.The chosen scenarios reveal two main results: excess heat in the system when the product load falls and a high heating demand when the product load retrieves its nominal values.Several design solutions are investigated and proposed to make flexible process conduction: the heat recovery fluid flow is controlled by the product load,whereas a heat storage is included.Finally a hybrid solution is proposed and several simulations are realised to find an efficient solution which meets the specifications.
Control dynamic simulation heat pump integrated process load variation
Jérémie Fricker Chantal Maatouk Assaad Zoughaib
Mines ParisTech,Palaiseau,France
国际会议
桂林
英文
1-13
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）