OPTIMUM FLOWRATE HISTORY FOR COOLDOWN AND ENERGY STORAGE PROCESSES.

Author(s) : BEJAN A., SCHULTZ W.

Type of article: Article

Summary

THIS PAPER CONSIDERS THE BASIC THERMAL DESIGN PROBLEM OF COOLING OR HEATING AN OBJECT USING THE MINIMUM AMOUNT OF WORKING FLUID. IF THE DURATION OF THE COOLING OR HEATING PROCESS IS FIXED, THEN THERE EXISTS A UNIQUE OPERATING REGIME WHICH INSURES THE MINIMUM CONSUMPTION OF WORKING FLUID. THE OPTIMUM FLOWRATE IS PROPORTIONAL TO SQUARE ROOT OF U/C, WHERE U IS THE OVERALL HEAT TRANSFER COEFFICIENT AND C IS THE SPECIFIC HEAT OF THE WORKING FLUID. NUMERICAL EXAMPLES OF COOLDOWN AND ENERGY STORAGE PROCESSES SHOW THAT THE IMPLEMENTATION OF THIS OPTIMUM OPERATING REGIME CAN LEAD TO SIGNIFICANT SAVINGS IN WORKING FLUID.

Details

  • Original title: OPTIMUM FLOWRATE HISTORY FOR COOLDOWN AND ENERGY STORAGE PROCESSES.
  • Record ID : 1983-0709
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 25 - n. 8
  • Publication date: 1982/08

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