Consider a building with 250-tons peak cooling load. On the peak-cooling day, the cool ing load occurs for 8 hours with a load factor of 75 percent. During the entire year, there are 1,000 equivalent full-load hours. Cooling is required only during the on-peak period 12.1 of the utility rate structure. The utility rate structure includes (i) demand charge: S10/Kw with 12 months ratchet period, (1) energy charge: the energy charge differential between on-peak and off-peak is $0.05/kwhThe installed cost of a chiller is $60/ton. The cost of a storage system is $60/ton-hr. Consider that the efficiency of the chiller is on average 1 kW/ton. () Determine the cost-effectiveness (using a simple payback analysis) of installing (a) a full storage system and (b) a partial storage system with 50 percent undersized chiller. For the partial storage system, assume that only 400 of equivalent full-load hours (relative to the new chiller size) have to be supplied by the chiller during the on-peak period. ) Determine the effect of the number of hours that the chiller has to be used during the on-peak period on the cost-effectiveness of the partial storage system. Consider a building with 250-tons peak cooling load. On the peak-cooling day, the cool ing load occurs for 8 hours with a load factor of 75 percent. During the entire year, there are 1,000 equivalent full-load hours. Cooling is required only during the on-peak period 12.1 of the utility rate structure. The utility rate structure includes (i) demand charge: S10/Kw with 12 months ratchet period, (1) energy charge: the energy charge differential between on-peak and off-peak is $0.05/kwhThe installed cost of a chiller is $60/ton. The cost of a storage system is $60/ton-hr. Consider that the efficiency of the chiller is on average 1 kW/ton. () Determine the cost-effectiveness (using a simple payback analysis) of installing (a) a full storage system and (b) a partial storage system with 50 percent undersized chiller. For the partial storage system, assume that only 400 of equivalent full-load hours (relative to the new chiller size) have to be supplied by the chiller during the on-peak period. ) Determine the effect of the number of hours that the chiller has to be used during the on-peak period on the cost-effectiveness of the partial storage system