Seepage and Heat Transfer Characteristics of Gas Leakage under the Condition of CAES Air Reservoir Cracking

Table 2

The parameters of the fractured surrounding rock model of Suichang gas storage reservoir.

Parameter	Value	Unit
Cavity radius ()	7.5	m
Cavity length ()	300	m
Lining thickness ()	0.5	m
Surrounding rock density ()	2620	kg/m^3
Initial pressure (P0)	0.1	MPa
Initial temperature (T0)	15	°C
Surrounding rock permeability ()		m^2
Width of surrounding rock fractures ()	1	mm
Width of lining fractures ()	0.3	mm
Width of gap between lining and rock ()	0.2	mm
Porosity of surrounding rock ()	0.02
Lining permeability ()		m^2
Porosity of lining layer	0.01
Maximum operating pressure	10	MPa
Gas constant ()	286.7	J/(kg·K)
Thermal conductivity of surrounding rock ()	3	W/(m·K)
Specific heat capacity of the air ()	1004	J/(kg·K)
Specific heat capacity of rock ()	920	J/(kg·K)
Permeability of fractures in surrounding rock ()		m^2
Interstitial permeability of lining and rock ()		m^2
Permeability of fractures in lining ()		m^2