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Low and medium temperature solar thermal collector based in innovative materials and improved heat exchange performance

机译：基于创新材料的中低温太阳能集热器和改进的热交换性能

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摘要

A low and medium temperature solar thermal collector for economical supply of heat between 40 and 90 ℃ has been developed. It is based on solar concentrating systems, heat transfer optimization and substitution of metallic materials by plastic ones. The basic concept is the integration of a flat absorber strip inside semicircular reflector channels in contact with heated water without pressurization. This collector is intended to be more efficient and cheaper than what actual commercial collectors usually are so that the access to a clean and renewable energy would be more quickly redeemable and its use more effective during its life cycle, expanding its common application range. The substitution of traditional materials by surface treated Aluminum with TiNOx for the absorber and chromed thermoformed ABS for the reflector simplifies the production and assembly process. The definitive prototype has an aperture area of 0.225 m~2. It was tested in Zaragoza (Spain) and the accumulated efficiency was between 41% and 57%, and the instantaneous efficiency reached 98% depending on the weather conditions. As all trials were made in parallel with a commercial collector, in several cases the performance was over the commercial one.
机译：已经开发出一种经济实惠的40到90℃之间的中低温太阳能集热器。它基于太阳能聚光系统，传热优化以及用塑料替代金属材料。基本概念是在半圆形反射器通道中集成平坦的吸收带，使其与热水接触而无需加压。这种收集器的目的是要比实际的商业收集器通常更高效，更便宜，以便可以更快地赎回清洁和可再生能源，并在其生命周期内更有效地使用它，从而扩大了其通用应用范围。用吸收了吸收剂的TiNOx表面处理过的铝替代了传统材料，而反射器则用了镀铬热成型ABS替代了传统材料，从而简化了生产和组装过程。最终原型的孔径面积为0.225 m〜2。在西班牙萨拉戈萨进行了测试，累积效率在41％到57％之间，根据天气情况，瞬时效率达到98％。由于所有试验都是与商业收藏家并行进行的，因此在某些情况下，性能超过了商业收藏家。

著录项

  • 来源
    《Energy Conversion & Management》 |2013年第11期|118-129|共12页
  • 作者

    A. Fernandez; J.A. Dieste;

  • 作者单位

    Area de Ingenieria Mecanica, University of Zaragoza, EINA, Edif. Torres Quevedo, C/Maria de Luna No. 3, 50018 Zaragoza, Spain;

    Fundacion AITIIP Technological Center, Pol. Ind. Empresarium, C/Romero No. 12, 50720 Zaragoza, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Thermal collector; Solar energy; Concentrating;

    机译：集热器;太阳能;专心;

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