TY - GEN
T1 - Model and algorithm for simulation of a novel dry-type shell-tube evaporator used in sewage source heat pump
AU - Shen, Chao
AU - Jiang, Yi Qiang
AU - Yao, Yao
PY - 2011
Y1 - 2011
N2 - Aiming at the issue of de-fouling in sewage source heat pump systems for sewage-side heat exchanger, a dry-type shell-tube sewage heat exchanger with auto-de-fouling function outside tubes was firstly developed. Based on reasonable assumptions, a steady-state and two-dimensional model for the dry-type shell-tube sewage evaporator is presented, according to the theory of two-phase flow and thermodynamics of refrigeration systems and the flow pattern of concurrent flow, counter flow, vertically crossed flow and oblique crossed flow in the side of sewage. Section division of the dry-type shell-tube sewage evaporator is setup, then, an new algorithm for the steady-state simulation of this evaporator is presented, which combines the idea of solving in temporal sequence and in spatial sequence, in the method of iterating flows' parameters on both sides until convergence to a certain precision. In order to validate the developed algorithm, simulation results were compared with experimental data. Due to the good agreement verified in the presented results, the developed algorithm was considered validated.
AB - Aiming at the issue of de-fouling in sewage source heat pump systems for sewage-side heat exchanger, a dry-type shell-tube sewage heat exchanger with auto-de-fouling function outside tubes was firstly developed. Based on reasonable assumptions, a steady-state and two-dimensional model for the dry-type shell-tube sewage evaporator is presented, according to the theory of two-phase flow and thermodynamics of refrigeration systems and the flow pattern of concurrent flow, counter flow, vertically crossed flow and oblique crossed flow in the side of sewage. Section division of the dry-type shell-tube sewage evaporator is setup, then, an new algorithm for the steady-state simulation of this evaporator is presented, which combines the idea of solving in temporal sequence and in spatial sequence, in the method of iterating flows' parameters on both sides until convergence to a certain precision. In order to validate the developed algorithm, simulation results were compared with experimental data. Due to the good agreement verified in the presented results, the developed algorithm was considered validated.
KW - De-fouling
KW - Dry-type evaporator
KW - Model
KW - Numerical algorithm
KW - Sewage-source heat pump
UR - https://www.scopus.com/pages/publications/79955801101
U2 - 10.1109/CDCIEM.2011.60
DO - 10.1109/CDCIEM.2011.60
M3 - 会议稿件
AN - SCOPUS:79955801101
SN - 9780769543505
T3 - Proceedings - International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, CDCIEM 2011
SP - 446
EP - 449
BT - Proceedings - International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, CDCIEM 2011
T2 - 2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring, CDCIEM 2011
Y2 - 19 February 2011 through 20 February 2011
ER -