Solar heating system

Saman W., Bruno, F., and Halawa, E., 2005, Thermal performance of PCM thermal storage unit for a roof integrated solar heating system, Solar Energy 78 341—349. 

Japan is subsidizing 10,000 PV installations on domestic buildings, while the United States has the goal of a million solar roofs by 2010, which include solar heating systems as well as photovoltaics. 

Fig. 8. Solar heating system with heat pump auxiliary...

Figures 5.90 and 5.91 show the hourly collected solar heat along with the low-temperature heat demand. Building heat losses and performance of the solar heat system are modelled as described in Chapter 6 of Sorensen (2004a). It is seen as expected that demand cannot be met in winter, whereas summer heat collection with suitable heat storage (day-night or a few overcast days) is consistent with the demand, which during summer is primarily for hot water.

Active Solar Heating Systems - A solar water or space-heating system that use pumps or fans to circulate the heat-transfer fluid from the solar collectors to a storage tank subsystem. 

Air Collector - In solar heating systems, a type of solar collector in which air is heated in the collector. 

Antifreeze Solution - A fluid, such as methanol or ethylene glycol, added to vehicle engine coolant, or used in solar heating system heat transfer fluids, to protect the systems from freezing. 

Differential Thermostat - A type of automatic thermostat (used on solar heating systems) that responds to temperature differences (between collectors and the storage components) so as to regulate the functioning of appliances (to switch transfer fluid pumps on and off). 

Drainback (Solar) Systems - A closed-loop solar heating system in which the heat transfer fluid in the collector loop drains into a tank or reservoir whenever the booster pump stops to protect the collector loop from freezing. 

Expansion Tank - A tank used in a closed-loop solar heating system that provides space for the expansion of the heat transfer fluid in the pressurized collector loop. 

Indirect Solar Gain System - A passive solar heating system in which the sun warms a heat storage element, and the heat is distributed to the interior space by convection, conduction, and radiation. 

Isolated Solar Gain System - A type of passive solar heating system where heat is coiiected in one area for use in another. 

Liquid-Based Solar Heating System - A solar heating system that uses a liquid as the heat transfer fluid. 

Recirculation Systems - A type of solar heating system that circulate warm water from storage through the collectors and exposed piping whenever freezing conditions occur obviously a not very efficient system when operating in this mode. 

Rock Bin - A container that holds rock used as the thermal mass to store solar energy in a solar heating system. 

Applications and uses automotive electrical applications, water pump impellers, HVAC equipment, solar heating systems, packaging, and circuit breakers. 

---