Application cases and economic benefits of Thermo-Chemical Networks
Application cases and economic benefits of Thermo-Chemical Networks
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热化学网络应用案例及经济效益
DOI：
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发表时间：
2017
期刊：
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通讯作者：
T. Roskilly
中科院分区：
文献类型：
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作者：
A. Giampieri;M. Buchholz;P. Geyer;R. Bucholz;C. Engel;M. Royapoor;A. Smallbone;T. Roskilly
吸收和解吸的热化学势非常有希望在低温范围内捕获和利用余热。由于捕获的能量潜力的无损失运输和存储，中长距离运输和中期存储为利用余热提供了有趣的潜力。因此，有机会开发规模达到区域供热水平的网络，该网络利用热化学流体而不是水作为主要工作介质。本文将介绍一种能够在一个多服务网络中提供加热、冷却和干燥的技术，并检验其经济维度。描述了液体干燥剂的加湿/除湿特性以及它们如何应用于住宅和商业建筑的供暖和制冷。此外，还对该技术的无损耗存储容量进行了表征，并根据该系统如何利用工业过程中的低品位热量和低温可再生能源来进行介绍。最后，对用于热存储和传输的传统解决方案与热化学解决方案进行了经济评估。加热、冷却和干燥应用的传统技术构成了经济比较的背景。经济比较的目的是展示热化学技术对参与此类网络的主要利益相关者的好处，提供证据证明热化学网络技术提供了商业上可行的机会。在该技术的几种可能的应用中，据估计，特别是对于住宅供暖/制冷、工业干燥和温室，热化学网络是投资回收期相对较短（2至5年）的可行系统。
Thermo-chemical potential of absorption and desorption is highly promising to capture and use residual heat at low-temperature ranges. Due to loss-free transport and storage of the captured energy potential, mediumto long distance transport and medium-term storage offer interesting potentials to utilise residual heat. As such, there is an opportunity to develop networks at scales up to district heating level which utilises thermo-chemical fluids rather than water as the main working medium. This paper will give an introduction to the technology that can provide heating, cooling and drying in one multiservice network and examine its economic dimension. The humidification/dehumidification properties of liquid desiccants and how they can be applied to the heating and cooling of residential and commercial buildings are described. In addition, the characterisation of the free-loss storage capacity of this technology is undertaken and presented in terms of how this system can employ the utilisation of low-grade heat from industrial processes and low-temperature renewable energies. Finally, an economic assessment of conventional versus thermo-chemical solutions for heat storage and transfer is offered. The conventional technologies for heating, cooling and drying applications form the background for an economic comparison. The aim of the economic comparison is to show the benefits of the thermo-chemical technology for the key stakeholders involved in such a network, providing evidence that thermo-chemical network technology offers a commercially viable opportunity Among the several possible employments of the technology, it has been estimated that particularly for residential heating/cooling, industrial drying and greenhouses the thermo-chemical networks result to be feasible systems with a payback period relatively small (between 2 and 5 years).