The building in worked example 13.10 is to be cooled using 4 chillers A, B, C and D with capacities of 750 kW, 1500 kW, 1500 kW, and 3500 kW respectively. The variation of the COP of the chillers A, B...

The building in worked example 13.10 is to be cooled using 4 chillers A, B, C and D with capacities of 750 kW, 1500 kW, 1500 kW, and 3500 kW respectively. The variation of the COP of the chillers A, B and C with load fraction is given by:

The chillers are to be operated in an optimal manner to satisfy the hourly cooling load given Table E13.10.1. Calculate (i) the hourly input of electrical energy to the chillers, (ii) the total electrical energy input, and (iii) the average COP of the cooling system.