Numerical simulation method of buried tube temperature field of ground source heat pump under thermoosmosis coupling
A technology of numerical simulation and temperature field, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as unfavorable engineering reference and long simulation time, and achieve the effect of simplifying heat source terms
Inactive Publication Date: 2015-01-07
南京红泰动力科技有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For large-scale pipe groups, due to the large calculation range, the simulation time of general commercial software is too long, which is not conducive to actual engineering reference.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0059] A numerical simulation method for the temperature field of ground-source heat pump buried pipes under the coupling of heat and permeability.
[0060] The main program runs:
[0061] Step 1: Input model conditions and geotechnical property data, including: pipe group arrangement, pipe group number, pipe group boundary condition setting, soil initial temperature is t 0 , The thermal conductivity of the soil is λ, the specific heat capacity of the soil is c, and the specific heat capacity of the soil is c w , The soil density is ρ, the constant heat flow value is q, the soil moisture content ω, and the groundwater seepage velocity u are the initial parameters of the algorithm;
[0062] Step 2: Initialize the pipe group model and related parameters of the soil, including: the parameters mentioned in step 1;
[0063] Step 3: Initialize the loop pointer τ=1, △τ=r, r is the change step of time τ, the change range of system running time τ is 1~t, and t is the set system running cut-off ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a numerical simulation method of buried tube temperature field of a ground source heat pump under thermoosmosis coupling. The method is used for numerical simulation of the buried tube temperature field of the ground source heat pump under thermoosmosis coupling. The heat exchange between the soil and the ground water is regarded as an internal heat source in an innovation manner, and an internal heat source item in an equation is simplified. The tube groups model condition, rock thermal performance data and iterative step r are initially input; implicit iterative computations are employed; and further, the temperature values of the soil around are obtained under the circumstance of a set seepage velocity and soil parameters. According to the method, changes of temperature distribution of the soil around the large-scale tube groups along with the seepage can be easily obtained; and the method has a low requirement for computer hardware and strong generality, effectively shortens the operation time and enlarges the scale of the calculated tube groups.
Description
Technical field [0001] The invention belongs to the field of ground source heat pump technology application and energy saving, and particularly relates to a method for determining the soil temperature field of a ground source heat pump buried pipe group under the condition of considering the influence of soil seepage. Background technique [0002] From some practical engineering perspectives, groundwater seepage has a greater impact on the heat transfer characteristics of the buried pipe, which will increase the heat transfer coefficient of the soil and the circulating liquid, making the length of the buried pipe designed according to the pure heat conduction model that does not consider the seepage. Too long, waste resources and increase costs. Therefore, the groundwater seepage situation must be considered in the design of the ground source heat pump system. In the case of large-scale pipe groups, due to the large calculation range, the simulation time of general commercial so...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 钱华张磊郑晓红
Owner 南京红泰动力科技有限公司