Pile foundation thermal response test method was adopted to measure the heat transfer capacity of the pile foundation U-pipe heat exchanger of large buildings in Shanghai. The heat exchanger system of pile foundation buried pipe was designed. CFD numerical simulation method was adopted to analyze temperature distribution characteristics of a single concrete pile and dense arrangement of concrete piles heat exchanger. Further, the number and spacing of ground heat exchanger with U-type pile foundation was optimized design . Finally, the U-shaped heat exchanger was buried in the pile base system which was designed to require 24 piles and pile spacing at 12m.

Pile foundation thermal response test method was adopted to measure the heat transfer capacity of the pile foundation U-pipe heat exchanger. The heat pump system of pile foundation buried pipe was designed. BIN method was adopted to calculate the annual dynamic load of office in Shanghai and annual energy consumption, and its energy-saving effect was determined by comparing with the air-cooled heat pump air conditioning system. Finally, annual cost method was employed to study the investment and annual operating expenses of pile foundation buried pipe heat pump air conditioner systems, and their economy, advantages and disadvantages by comparing with those of the air-cooled heat pump air conditioning system were analyzed.

According to the current energy trends, the paper designs a power supply device to keep the Power Supply Platform that the solar power as the main energy, meanwhile the Storage Battery and alternating current as the minor energy working normally. The device has the function of switching the power supply to achieve the uninterrupted power supply to loading in any environment so that will output DC stably and carry three charging to the Storage battery. Through the Ps-pice software simulation results show that the modules can meet the design requirements. It can achieve the results of switching power and select function of the Storage battery power charging module through controlling circuit by Proteus simulation software. The power supply device has the advantages of high reliability.

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