Development of potential map for ground and groundwater heat pump systems and the application to Tok

It is necessary for optimum design of GSHP systems to estimate accurately thermal properties of the designed ground and predict the heat extraction rate from the ground. Generally, experimental analysis has been used for the feasibility of system introduction such as thermal response test, pumping test or cone penetrating test, but it causes to increase estimation cost before the introduction, equivalent to tens of thousands of dollars in Japan. On the other hand, the heat exchange rate and the effect of the system on underground environment can be predicted by using numerical simulation. In this research, in order to estimate the effect of the ground thermal properties on system performance, numerical simulation has been conducted through the sensitivity analysis with the developed simulation tool. Furthermore, the method to develop an energy potential for GSHP system has been suggested and its application for Tokyo 23 ward area has been conducted with GIS data.

[1]  Mustafa Inalli,et al.  Temperature distributions in boreholes of a vertical ground-coupled heat pump system , 2009 .

[2]  Simon J. Rees,et al.  A transient two-dimensional finite volume model for the simulation of vertical U-tube ground heat exchangers , 1999 .

[3]  Katsunori Nagano,et al.  Development of a design and performance prediction tool for the ground source heat pump system , 2006 .

[4]  R. Ooka,et al.  Numerical simulation of ground heat and water transfer for groundwater heat pump system based on real-scale experiment , 2010 .

[5]  Ryozo Ooka,et al.  Development of a numerical model to predict heat exchange rates for a ground-source heat pump system , 2008 .

[6]  Huajun Wang,et al.  Thermal performance of borehole heat exchanger under groundwater flow: A case study from Baoding , 2009 .

[7]  Chengying Qi,et al.  Improved method and case study of thermal response test for borehole heat exchangers of ground source heat pump system , 2010 .

[8]  Shintaro Yokoyama,et al.  Study on underground thermal characteristics by using digital national land information, and its application for energy utilization , 2002 .

[9]  Onder Ozgener,et al.  Modeling and performance evaluation of ground source (geothermal) heat pump systems , 2007 .

[10]  Ryozo Ooka,et al.  Evaluation of estimation method of ground properties for the ground source heat pump system , 2010 .

[11]  Petar Vasiljević,et al.  Criteria for use of groundwater as renewable energy source in geothermal heat pump systems for building heating/cooling purposes , 2010 .

[12]  B. Sanner,et al.  New Trends and Technology for Underground Thermal Energy Storage (UTES) , 1997 .

[13]  Maoyu Zheng,et al.  Development of a numerical model for the simulation of vertical U-tube ground heat exchangers , 2009 .

[14]  Hikari Fujii,et al.  An improved thermal response test for U-tube ground heat exchanger based on optical fiber thermometers , 2009 .

[15]  Thomas Kohl,et al.  Geothermal resource mapping—example from northern Switzerland , 2003 .

[16]  J. C. Jaeger,et al.  Conduction of Heat in Solids , 1952 .

[17]  Jeong-Sang Hahn,et al.  CHARACTERIZATION OF GROUNDWATER TEMPERATURE OBTAINED FROM THE KOREAN NATIONAL GROUNDWATER MONITORING STATIONS: IMPLICATIONS FOR HEAT PUMPS , 2006 .

[18]  Ryuichi Itoi,et al.  Development of suitability maps for ground-coupled heat pump systems using groundwater and heat transport models , 2007 .