Problem 1 (40 points) Consider the following chilled water system. The chiller draws 155 kW of electric input power. The chiller evaporator (cooler) pressure drop curves are provided below in units of feet of water column (ft wg) and gallons per minute (gpm) on a logarithmic scale. The chiller model number is 106. The system's minimum flow bypass is installed to ensure a manufacturer minimum flow rate of water through the chiller to prevent freezing at low loads. CWR 85F (- Cooling Tower 72F CWS CW Pumps Estimate the following. a. Chilled water flow rate through the chiller in gallons per minute b. Chiller evaporator load in tons c. Cooling tower load in tons d. Condenser water flow rate in gallons per minute e. Chiller COP PRESSURE DROP (FT WG) Chiller 100 100 58F P 31 psig P 22 psig 1 43F Minimum Flow Bypass 076, 086 CHWR CHWS 60F Chilled Water Loads 136, 146 116, 126 161, 171 106 186 096 206 246-271 1000 COOLER FLOW RATE (GPM) 1 You may find the following unit conversions helpful. 1 atmosphere = 14.7 psi = 33.9 feet of water column. 1 kW = 3,412 Btu/h. 44F