Measure by traversing the temperature boundary layer in the airflow region at intervals of 1/100 mm.
In the annular section between the inner tube and the inner and outer tubes of a double-tube heat exchanger, hot water and air are flowed under various conditions such as counterflow, parallel flow, laminar flow, and turbulent flow, capturing phenomena such as heat transfer, thermal conduction, and heat penetration numerically to aid in theoretical understanding. In particular, the temperature boundary layer within the air flow region will be measured by traversing at intervals of 1/100 mm.
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In a double-tube heat exchanger, hot water and air are flowed in countercurrent, parallel flow, laminar flow, turbulent flow, and other different conditions in the annular section between the inner tube and the inner and outer tubes. The phenomena of heat transfer, thermal conduction, and heat flux are captured numerically to aid theoretical understanding. In particular, the temperature boundary layer in the air flow region will be traversed and measured at intervals of 1/100 mm. 【Measurement and Calculation Items】 ○ Hot water (liquid) flowing inside the inner tube Measurement items: Flow rate, temperature of hot water inside the inner tube, surface temperature of the outer wall of the inner tube Calculation items: Surface temperature of the inner wall of the inner tube, Reynolds number, Nusselt number, heat transfer coefficient (thermal conductivity) from water to the inner wall of the inner tube ○ Air (gas) flowing in the annular section between the inner and outer tubes Measurement items: Flow rate, inlet and outlet temperatures, temperature boundary layer (traversed every 1/100 mm), temperature gradient Calculation items: Reynolds number, Nusselt number, heat transfer coefficient (thermal conductivity) from the outer wall of the inner tube to the air, overall heat transfer coefficient (thermal flux rate) 【Device Dimensions】 ○ 3200mm (W) × 1000mm (D) × 1900mm (H)
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Tokyo Meter has a proven track record both domestically and internationally in educational and research internal combustion engine performance comprehensive testing equipment for universities, technical colleges, and industrial high schools, as well as testing equipment focused on fluid and thermal applications for general industries, and fluid measurement instruments.