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Архивы рубрики: Stirling Engines for Low-Temperature Solar-Thermal Electric Power Generation

Market Available Collectors

Solar-thermal collectors generally consist of a transparent cover and a selective ab­sorber surface, under which there is tubing to guide heat transfer liquid and insulation to reduce thermal losses. The solar hot water industry has improved upon flat-plate collec­tors by reducing optical and thermal losses by using high transmission covers and selective absorber materials. More

System Topology

The proposed energy conversion system is conceived to convert solar power into elec­tricity in three stages: solar to thermal, thermal to mechanical, and mechanical to electric. The system is conceived to operate with collector temperatures in the range of 120 °C to 150 °C, which is consistent with the use of stationary solar thermal collectors

Low-Cost Solar-Thermal-Electric Power Generation

In this chapter, the technical and economic feasibility of a low-cost distributed solar — thermal-electric power generation technology is discussed, which is based on the use of a solar-thermal collector (STC) in conjunction with a free-piston Stirling engine. The solar-thermal collector is to be comprised of low-concentration nonimaging concentrators and absorbers with spectrally selective coatings.

Thesis Contribution and Structure

While the large companies continue to drive down the PV costs, other new ideas may totally change the situation with breakthrough technology and significantly lower pricing. Any current or emerging technology that can bring the cost of an entire solar PV system to around $2 per peak watt will be in a very good position.

Solar Dish-Engine Systems

A photo of a solar dish-engine system owned and operated by Stirling Energy Systems is shown in Figure 1.8. Such a system can be used to generate electricity in the kilowatts range. The ideal concentrator shape is a paraboloid of revolution which concentrates sunlight on the focus of paraboloid. Concentration ratio is typically over 2000

Solar Power Tower

Solar power towers are commercially less mature than parabolic trough systems. How­ever, a number of component and experimental systems have been field-tested around the world (Russia, Italy, Spain, Japan, France, and the United States) in the last 25 years with the output powers ranging from 0.5 to 10 MW [15, 14, 18]. In a solar

Solar Parabolic Trough

In 1984, the first of the concentrating solar power plants began converting solar energy into electricity in California’s Mojave Desert [13, 14]. It was a plant based on solar par­abolic trough technology. These plants are large fields of single-axis collectors shaped as parabolic reflectors (mirrors) similar to a trough, Figure 1.6. The collectors are aligned

Residential Water Heating

Domestic solar water heaters can be a cost-effective way to generate hot water for residential homes. Solar water heating systems include a well-insulated storage tank and solar collector modules. Solar collectors are the key component of solar-heating systems since they gather the sun’s energy, transform its radiation into heat, then transfer that heat to water,

Concentrated Photovoltaics

Concentrated PV (CPV) technology is distinct from standard PV technology in that It replaces most of the PV cell area with a set of reflectors in order to reduce costs. This Premise uses the theory that the reflectors are cheaper than the PV would have been. Concentrating systems may add an additional layer of complication:

Thin-Film Photovoltaics

Clearly, one of the biggest challenges and opportunities for entrepreneurs is getting the cost of solar PV to cost parity with conventional retail electricity. Since silicon is the major contributor to the cost of PV technology, it is believed that use of less silicon will have a substantial effect on the cost reduction of the