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Thermal-hydraulic process for cooling, heating and power production with low-grade heat sources in residential sector

机译：住宅领域使用低品位热源进行冷却，加热和发电的热工过程

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摘要

A new process based on thermal-hydraulic conversion actuated by low-grade thermal energy is investigated. Input thermal energy can be provided by the means of solar collectors, as well as other low temperature energy sources. In the following article, "thermo-hydraulic" term refers to a process involving an incompressible fluid used as an intermediate medium to transfer work hydraulically between different thermal operated components or sub-systems. The system aims at providing trigeneration energy features for the residential sector, that is providing heating, cooling and electrical power for meeting the energy needs of domestic houses. This innovative system is made of two dithermal processes (working at two different levels of temperatures) and featuring two different working fluids. The first process is able to directly supply either electrical energy generated by an hydraulic turbine or drives the second process thanks to the incompressible fluid, which is similar to a heat pump effect for heating or cooling purposes. The innovative aspect of this process relies on the use of an hydraulic transfer fluid to transfer the work between each sub-system and therefore simplifying the conversion chain. A model, assuming steady-state operation, is developed to assess the energy performances of different variants of this thermo-hydraulic process with various heat source temperatures (80-110 degrees C) or heat sinks (0-30 degrees C), as well as various pairs of working fluids. For instance, in the frame of a single-family home, located in the Mediterranean region, the working fluid pairs (R1234yf/R1233zd) is investigated in detail in order to estimate the annual performances. For domestic houses, the process aims at amplifying the solar energy collected by a factor of 1.32 for heating purpose, provides a cold production with a coefficient of performance of 0.4 and generates electricity from the remaining solar energy with an efficiency of 3.7%, reducing the electrical or auxiliary consumption and overall greenhouse gas emissions. (C) 2016 Elsevier Ltd. All rights reserved.
机译：研究了一种由低级热能驱动的基于热工水力转换的新工艺。可以通过太阳能收集器以及其他低温能源来提供输入热能。在下面的文章中，“热液压”一词是指一种涉及不可压缩流体的过程，该流体被用作中间介质，以在不同的热操作组件或子系统之间液压地传递功。该系统旨在为住宅部门提供三代能源功能，即提供供暖，制冷和电力以满足家庭房屋的能源需求。这个创新的系统由两个放热过程（在两个不同的温度水平下工作）组成，并具有两种不同的工作流体。由于不可压缩的流体，第一过程能够直接供应由水轮机产生的电能或驱动第二过程，这类似于出于加热或冷却目的的热泵效应。此过程的创新之处在于使用液压传输液在每个子系统之间传输功，从而简化了转换链。开发了一个假设为稳态运行的模型，以评估该热工-液压过程的不同变体在各种热源温度（80-110摄氏度）或散热器（0-30摄氏度）下的能量性能作为各种工作液。例如，在一个位于地中海地区的单户住宅的框架中，对工作液对（R1234yf / R1233zd）进行了详细研究，以估算其年度性能。对于民用房屋，该过程旨在将收集到的太阳能放大至1.32倍用于供热，以提供的制冷系数为0.4，并以3.7％的效率从剩余的太阳能中发电，从而减少了能耗。电力或辅助能源消耗以及温室气体总排放量。 （C）2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Energy Conversion & Management》 |2017年第3期|148-159|共12页
  • 作者

    Borgogno R.; Mauran S.; Stitou D.; Marck G.;

  • 作者单位

    CNRS, Lab PROMES, UPR 8521, Rambla Thermodynam, F-66100 Perpignan, France|UPVD, 52 Ave Paul Alduy, F-66860 Perpignan, France;

    UPVD, 52 Ave Paul Alduy, F-66860 Perpignan, France;

    CNRS, Lab PROMES, UPR 8521, Rambla Thermodynam, F-66100 Perpignan, France;

    SATT AxLR, 1000 Ave Agropolis, F-34394 Montpellier, France;

  • 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

    Low-grade solar heat source; Thermal-hydraulic cycle; CCHP; Trigeneration;

    机译：低品位太阳能;热工水力循环;CCHP;三代;

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