Figure 4
Three graphs are presented in a single column. The curve in the top graph is labeled “Large D H W load profile”. The vertical axis is labeled “Energy load in kilowatt hours”, ranging from 0 to 4 in increments of 1. The horizontal axis is labeled “Hour”, ranging from 0 to 8000 in increments of 1000. The bars vary across the range and increase toward the middle hours before decreasing. The legend reads “Maximum daily D H W load equals 17.50 kilowatt hours”, “Minimum daily D H W load equals 12.25 kilowatt hours”, and “Average daily D H W load equals 15.83 kilowatt hours”. The curve in the middle graph is labeled “Medium D H W load profile”. The vertical axis is labeled “Energy load in kilowatt hours”, ranging from 0 to 4 in increments of 1. The horizontal axis is labeled “Hour”, ranging from 0 to 8000 in increments of 1000. The bars fluctuate within a narrower band than the top graph. The legend reads “Maximum daily D H W load equals 11.67 kilowatt hours”, “Minimum daily D H W load equals 8.17 kilowatt hours”, and “Average daily D H W load equals 10.55 kilowatt hours”. The curve in the bottom graph is labeled “Small D H W load profile”. The vertical axis is labeled “Energy load in kilowatt hours”, ranging from 0 to 4 in increments of 1. The horizontal axis is labeled “Hour”, ranging from 0 to 8000 in increments of 1000. The bars remain lower for most hours with slight increases near the beginning and end. The legend reads “Maximum daily D H W load equals 10.85 kilowatt hours”, “Minimum daily D H W load equals 2.81 kilowatt hours”, and “Average daily D H W load equals 6.35 kilowatt hours”. Note: All numerical data values are approximated.Hourly distribution of three different DHW load profiles (high, medium and low) over a year. Source: Authors' own work