SLAB HEATED WAREHOUSE Objective • Design a warehouse heating system that must maintain a constant temperature of 70 °F. Considering that the temperature during the day is 65 °F and 40 °F at night throughout the year. Design - Calculations and Results Design parameters Heat transfer Table 3: Slab Heated Warehouse Design Parameters Simulations Figure 1: Heat Transfer Schematic with heat rates Table 1: Loads resulting from day and night Figure 3: Heat Transfer Day Steady State Simulation Fluid Temperature Daytime: Piping layout design Calculated=297.7 K Simulated =302.9 𝐾 Figure 2: Piping layout diagram Figure 4: Heat Transfer Night Steady State Simulation Table 2: Parameters for piping layout design Fluid Temperature Night-time: Calculated= 317.4 K Simulated = 306 K The error between the calculations and the simulations may be produced by the differences in the system analysis, as the simulation considers non-linear conduction, while the calculations consider 1D conduction. Conclusions With the project it was possible to design a working heating system for the purposed problem reaching to the following design results: • Electric Heating was the selected method of heating the water because of its advantages in economy, reliability, and functionality. • It was considered a serpentine array for the tubing system with two main divisions having a total length of 1470 m and two pumps of 5 hp to supply pressure to the entire system. • The temperature at which the water must be for the warehouse to be at 70°F at day is 303.7 K and at night it is 317.4 K. Heat Transfer Nicole Hermosa, Sebastián Insuasti, Andrés Molina, Bryan Rayo, Ismael Romero
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