Lab 4: Solar Hot Water System Design Objective The objecciye of this lab is to design a solar hot water system for a residential house through a design exercise. introduction Solar hot water production is a reliable and well accepted technology. There are a yariety of ways to design a solar hot water system. In central Illinois, where freezing temperatures are common, an indirect (dual loop] system is necessary for winter operation. There are seyeral types of indirect systems. The most attractiye with respect to reliability and performance is the drainbacit system. In Central Illinois. it is likely that a solar hot water system can proyide all of the hot water required {if properly sized} during warmer months and 413% or more during cooler months. It is common to mate the solar system to an electrical backup heater that will provide makeup heat to meet hot water demands when solar radiation is not sufficient. Design Considerations: Hot water usage in the US is typically 13 to 31] gallons per person per day for home use. In Central Illinois, 1 ft2 of collector is required per 1.1] gallon of tank capacity. Collectors and associated piping must haye adequate slope to completely drain when not in heating mode. The lift pump must be sized for adequate ow rate to the topmost elevation of the system. Design creativity is encouraged. The house location can be anywhere in the world if you like. Procedure In groups of 3 or 4, design a solar hot water system for a house: In 2,1111} square feet I- ii residents Each group is to prepare 1. Schematic drawing of the system 1 Specification of system and parts - Costs - Economic analysis