Topic
Photovoltaic thermal hybrid solar collector
About: Photovoltaic thermal hybrid solar collector is a research topic. Over the lifetime, 8688 publications have been published within this topic receiving 232734 citations.
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TL;DR: In this paper, a novel solar thermal conversion and water heater system achieved by supercritical CO 2 natural circulation was established and tested in Zhejiang Province (around N 30.0°, E 120.6°) of southeast China.
62 citations
Patent•
11 Jul 1977
TL;DR: In this paper, a solar energy thermal collector and process is proposed to provide both concentrating tracking and non-concentrating diffuse absorption functions in a single unit, which can be used in various processes, such as environmental conditioning, to utilize thermal energy of two different temperatures.
Abstract: A solar energy collector providing both concentrating-tracking functions and non-concentrating diffuse absorption functions in a single unit. The solar energy collector and process may provide both a higher temperature heat transfer fluid and a lower temperature heat transfer fluid for utilization in various processes, such as environmental conditioning, which may advantageously utilize thermal energy of two different temperatures. The solar energy thermal collector and process of this invention provides a high temperature thermal output in combination with a simplified tracking capability.
62 citations
Patent•
06 Apr 1976
TL;DR: In this article, a dual flow path relative to heat transfer surfaces of the collector panel is employed, where a major air flow is confined beneath the panel, but a subsidiary (bypass) air flow at an angle to the principal flow is also employed to suppress natural (free) flow convection at an upper side of the panel.
Abstract: High efficiency solar radiation collectors may employ a dual flow path relative to heat transfer surfaces of the collector panel. A major air flow is confined beneath the panel, but a subsidiary (bypass) air flow at an angle to the principal air flow is also employed to suppress natural (free) flow convection at an upper side of the panel. Advantageously, the subsidiary air flow can be established by perforations in the collector panel and by creation of a suction for the bypass air. High efficiency energy collection, particularly adapted to weak and intermittent radiation environments, is further enhanced by the usage of a collector panel having a low thermal mass and providing good thermal interchange with a relatively small air mass moving beneath and above the panel, while being arranged to limit thermal conduction along the panel in the direction of air flow. Thus, a thermal gradient is established along the length of the collector panel, with a low temperature differential with the heated air mass at every position, with a fast heating response time, and with reradiation losses being minimized. By recirculating the air in a low thermal mass heat exchange system with an energy storage system in such fashion that inlet fluid is at the lowest sustainable temperature, insolation incident upon the collector is more fully utilized. The thermal energy storage most advantageously comprises what may be termed a minimum entropy system, with thermal energy in the heated air mass being interchanged in counterflow relation with a storage fluid which may be fed to different temperature level storages, dependent upon the intensity of the solar radiation available to the collector.
62 citations
TL;DR: In this paper, the performance of a building integrated concentrating photovoltaics (BICPV) system was evaluated using a coupled optical, electrical, and thermal analysis.
61 citations
TL;DR: The need for materials and device developments using conventional silicon and other materials are discussed, pointing to the need to use scalable materials and to reduce the energy payback time.
Abstract: Solar energy conversion into electricity by photovoltaic modules is now a mature technology. We discuss the need for materials and device developments using conventional silicon and other materials, pointing to the need to use scalable materials and to reduce the energy payback time. Storage of solar energy can be achieved using the energy of light to produce a fuel. We discuss how this can be achieved in a direct process mimicking the photosynthetic processes, using synthetic organic, inorganic, or hybrid materials for light collection and catalysis. We also briefly discuss challenges and needs for large-scale implementation of direct solar fuel technologies.
61 citations