A Study both on the measurement and optimization of Heat Source Systems : Part 2-The proposal of a new heat source system such as "Variable Over Water Volume System"

Abstract

In Part 1, we showed the real data of temperatures of both supply and return chilled water from heat source systems, and explained that the coefficient of performance of heat source systems grew worse. In Part 2, we made a new proposal how to improve the coefficient of performance about heat source systems. It was shown that the chilled water volume increases in inverse proportion to the decrease of differential temperatures. The refrigeration systems are over operated until now. Therefore, the energy consumption of refrigeration systems increases unnecessarily. Our new proposal is that we will change the volume design points of both chilled water supply pumps and refrigerators bigger than usual volume. We named this new system such as "Variable Over Water Volume System". We can save the energy consumed by heat source systems adopting this new system in the real operations.