海水源热泵在养殖水体升温与废水余热回收中的应用效果

该文开展了利用鲆鲽鱼类养殖废水作热源、为养殖用水升温的海水源热泵设备试验研究。探讨了养殖废水温度和流量对热泵的制热性能、养殖用水升温和废水余热的回收效果的影响。结果表明,养殖废水温度和流量愈高,热泵的制热性能改善愈明显,当废水温度为8.0~9.0℃、流量为200-700L/h时,热泵的制热性能系数(coefficientofperformance,COP)为2.61~3.85,废水温度升至10.5~14.6℃时,在上述流量范围内,热泵的COP值达到3.19~5.12;另外,养殖废水温度愈高或流量愈低,海水源热泵对养殖用水的升温效果愈好。当养殖废水温度低于10℃时,将流量控制在400L/h以下,...

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Published in农业工程学报 Vol. 30; no. 3; pp. 142 - 148
Main Author 李秀辰 母刚 张国琛 孙彩玲 张野 王耀华
Format Journal Article
LanguageChinese
Published 大连海洋大学辽宁省渔业装备工程技术研究中心,大连,116023 2014
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.03.019

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Summary:该文开展了利用鲆鲽鱼类养殖废水作热源、为养殖用水升温的海水源热泵设备试验研究。探讨了养殖废水温度和流量对热泵的制热性能、养殖用水升温和废水余热的回收效果的影响。结果表明,养殖废水温度和流量愈高,热泵的制热性能改善愈明显,当废水温度为8.0~9.0℃、流量为200-700L/h时,热泵的制热性能系数(coefficientofperformance,COP)为2.61~3.85,废水温度升至10.5~14.6℃时,在上述流量范围内,热泵的COP值达到3.19~5.12;另外,养殖废水温度愈高或流量愈低,海水源热泵对养殖用水的升温效果愈好。当养殖废水温度低于10℃时,将流量控制在400L/h以下,海水源热泵可将7℃的养殖用水的温度提升至10.0~12.8℃,如果利用10.5~14.6℃的养殖废水作热源,流量达到700L/h时,海水源热泵能将养殖用水的温度由7℃升至10.4~13.4℃,利用IO℃以上的养殖废水作热源时,废水的最大降温幅度达9.2℃;此外,对比分析发现,利用10.5~14.6℃的养殖废水作热源时,海水源热泵对养殖用水的升温费用比燃煤(油、气)锅炉和电加热分别降低0.36、2.91、5.86和5.68元/t,每年比燃煤锅炉减排二氧化碳2.7~7.3t。
Bibliography:11-2047/S
Li Xiuchen, Mu Gang, Zhang Guochen, Sun Cailing, Zhang Ye, Wang Yaohua (R&D Center of Fisheries Equipment and Engineering of Liaoning Province, Dalian Ocean University, Dalian 116023, China)
wastewater; heating; aquaculture; flatfish; seawater source heat pump; waste heat; recovery
A bench scale seawater source heat pump was developed, which consisting of a piston compressor and three plate heat exchangers (namely pre-heater, evaporator and condenser). The experiments were carried out on culturing water heating by the heat pump using wastewater as heat source in a lab flatfish culturing system. The performance, water heating and waste heat recovery effects of the heat pump were studied at different temperatures and flow rates of the heat source. The heating costs of culturing water by seawater source heat pump, coal (oil, gas) -fired boilers and electricity heating, etc were compared and analyzed as well. The results showed that it could obviously improve the performance of the heat pump by increasing
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.03.019