Yibin Huang

Zhengzhou University | zzu · School of Water Conservancy Engineering

Numerical simulation is the most common method to predict reservoir production temperatures during geothermal energy extraction. Considering the principle of numerical modeling, the numerical simulation establishment process requires a large amount of good exploration data. In addition, it is heavily influenced by subsurface heterogeneity. Also, de...

The research on the seepage and heat transfer characteristics of fluid flowing through fractured rock mass is of great significance to the utilization of geothermal resources. The behaviors and characteristics of heat transfer when fluid flowing through a single fracture channel, two intersecting fractures channels, and three intersecting fractures...

We incorporated aperture variability considering contact obstacles into an ensemble of fractured geothermal reservoir simulations to quantify how variations in this multi-scale aperture feature could impact flow field organization and heat transport behavior at the fracture scale. This work considered the variability of the correlation length and s...

A spent fuel reprocessing site (SFRS) is under constructions on granitic beds in Northwest China. To safely manage the potential migration of nuclides, it is critical to accurately characterize the natural fracture system in the bedrock and accurately predict the variability in the geological environment. However, a workflow for site-scale discrete...

Long-term seepage under high temperature and high pressure affects fracture morphology, ultimately impacting the development efficiency of Enhanced Geothermal Systems (EGS). In this study, rock samples with different morphologies were produced and their morphologies were described quantitatively using fractal dimension theory. Experimentally, disti...

To overcome the restrictions of the limited heat exchange area of the traditional coaxial borehole heat exchanger (CBHE), an enhanced CBHE is proposed. This strategy significantly improves the heat exchange area by constructing local hydraulic fractures for the low-temperature fluid to pass through. Herein, a thermo-hydraulic coupling model based o...

Medium-deep geothermal energy has obvious advantages in building heating in cold regions. The abandoned oil well can be retrofitted into a closed-loop coaxial borehole heat exchanger to save costs. However, continuous heat extraction and recovery in long-term operation can cause potential deformation, and the thermal disturbance scope in the surrou...

In the Enhanced Geothermal System (EGS), the flow state of the fracture of the thermal reservoir (granite) is important for heat transfer. In this paper, the effects of reservoir temperature, flow rate and fracture shape on the thermal convection that occurs in the fracture of rough granite are studied based on the fractal dimension theory. The rou...

Seepage characteristics and heat transfer efficiency in rough fracture are indispensable to evaluate thermal reservoir lifetime and production performance. This study presents the seepage experiment, experiment and simulation on convective heat transfer in rough fracture for two artificial specimens. The repeatable artificial specimens are prepared...

Understanding the flow and heat transfer in fractured geothermal reservoir is critical for the development of enhanced geothermal system (EGS) in the future. Under the framework of discrete fracture network, a thermal-hydraulic coupled model is proposed to evaluate the heat extraction performance of multilateral wells in fractured reservoirs. Five...

As fluid passes through the fracture of an enhanced geothermal system, the flow direction exhibits distinct angular relationships with the geometric profile of the rough fracture. This will inevitably affect the heat transfer characteristics in the fracture. Therefore, we established a hydro-thermal coupling model to study the influence of the flui...

Geothermal energy has considerable development potential in space heating. As a method of heat extraction, the deep coaxial borehole heat exchanger has superior thermal performance to that of the conventional borehole heat exchanger. However, the composition attributes (inner pipe, outer pipe, grout, length) of the deep coaxial borehole heat exchan...

Geothermal energy is an abundant and clean energy source that is abundant and widely and naturally distributed in the earth. Deep coaxial borehole heat exchanger (DCBHE) can efficiently extract heat from rock-soil for building heating. And DCBHE systems have superior application performance to that of the traditional BHEs. However, the existing rel...

The thermal performance of DCBHE is superior to conventional borehole heat exchanger (BHE) systems. In the current study, the field test using a DCBHE (2044 m) is conducted, based on a distributed optical fiber temperature sensor (DOFTS). The temperature of the circulating fluid in terms of depth and operation time is monitored in real-time. The th...

Understanding the water flow and heat transfer process in rock fractures is crucial for the development and utilization of geothermal reservoirs. This study develops a numerical model of a granite reservoir with two intersecting fractures to evaluate the heat production performance. Then, the evolution of the distribution of the rock and fluid temp...

An accurate understanding of the heat transfer of water flow through rough fractures is important for geothermal energy extraction and utilization. In this study, we used 3D printing to manufacture ten samples with joint roughness coefficient (JRC) values of the fracture surface ranging from 0–2 to 18–20 and conducted experimental investigations of...

Yitong Basin is located in subfrigid zone, and it has a good prospect to use geothermal clean heating. The evaluation of economic efficiency for heating with enhanced geothermal system (EGS) is indispensable. A simplified single‐fracture hydrothermal coupling model with laboratory test is developed in the EGS project to calculate temperature and pr...

An experimental study was conducted to improve the understanding of the flow and heat transfer characteristics of water flowing through a fracture induced by hydraulic fracturing for geothermal energy extraction in an enhanced geothermal system. The hydraulic conductivity, average fracture aperture and heat transfer coefficient were experimentally...

Enhancing the heat transfer efficiency between working fluids and hot dry rocks (HDRs) in fracture reservoirs is important. In this paper, we present the seepage and convective heat transfer experiment to investigate the behavior of distilled water in the artificial rock samples. The reproducibility of the experimental studies can be achieved based...

Heat transfer coefficient is a significant parameter that can describe the characteristics of the heat transfer process of fluid through fracture surface and can be used to predict hot water production from an enhanced geothermal reservoir and conventional geothermal systems. This study adopted numerical and experimental approaches that produce spe...