The Winner Design of the Max Tech and Beyond Competition: A High-efficient Residential Air-conditioning System
Max Tech和Beyond Competition的优胜者设计:高效住宅空调系统
本文介绍了在劳伦斯·伯克利国家实验室和美国能源部主办的Max Tech and Beyond竞赛中获得第一名的高效家用空调器的设计、制造和测试。马里兰大学的20多名学生和教员参加了为期一年的比赛,创造了一种空调,与最先进的产品相比,其性能至少提高了30%。RHNDE(低温)和SSDWX(低温)热交换器采用独立的散热设计。SSLC技术通过提高蒸发温度来提高蒸汽压缩循环COP,同时通过利用冷凝器的废热来再生DW来满足潜在冷却需求。
RHX旨在为乘客提供更好的热舒适性。初步测试结果表明,该设计将系统COP提高了31%,达到了设计目标。SSLC系统的第二轮研究将侧重于降低第一代原型的制造成本,并为大规模生产做好准备。引文:美国丹佛市ASHRAE会议论文
This paper presents the design, fabrication and test of a high-efficient residential air-conditioner which won first place in the Max Tech andBeyond competition sponsored by Lawrence Berkeley National Laboratory and U.S. Department of Energy. Over 20 students and facultymembers of University Maryland participated in the one-year competition that created an air-conditioner that achieved at least 30% better COPcompared to the state-of-the-art products. The design utilizes the technologies of separate sensible and latent cooling (SSLC), low temperaturedrivendesiccant wheel (DW) and radiative heat exchangers (RHX). The SSLC technology increases the vapor compression cycle COP byelevating the evaporating temperature while the latent cooling demand is fulfilled by utilizing waste heat from the condenser to regenerate the DW.The RHX is designed to provide better thermal comfort for occupants. The preliminary test results show that the design achieves the goal byimproving the system COP by 31%. The second round of study on the SSLC system will be focused on reducing the manufacturing cost of the firstgeneration prototype and preparing for mass production.