Method for calculating cooling capacity gap of high-temperature tunnel based on air flow temperature balance

• Main Authors: QI ZHANFENG, WANG XINDONG, XIANG LIANG, LI GUOLIANG, LIU GUOQING, LI NING, DUO SHENGJUN, WANG XULIN
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a high-temperature tunnel cooling capacity gap calculation method based on air flow temperature balance. The method comprises the steps of air flow balance temperature calculation in a tunnel hole under the ventilation steady-state condition, tunnel conventional heat source quantitative calculation and tunnel cooling measure cooling capacity calculation. In the wind flow temperature balance calculation, indexes such as temperature and humidity which can be measured on site are utilized, and the environment temperature of the corresponding position in the hole is obtained by solving a three-stage wind flow heat exchange and energy balance equation; the tunnel conventional heat source comprises high-temperature hot water, high-temperature surrounding rock, explosive blasting, cement hydration, internal combustion machinery and constructor heat dissipation. The tunnel cooling measures comprise ice blocks, cold water fusion, ventilation and mechanical refrigeration cooling. The calculation