江苏科技大学学报(自然科学版)
江囌科技大學學報(自然科學版)
강소과기대학학보(자연과학판)
JOURNAL OF JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2013年
3期
246-250
,共5页
周根明%赵忠梁%唐春丽%张东辉
週根明%趙忠樑%唐春麗%張東輝
주근명%조충량%당춘려%장동휘
冷凝热%再热空气%空调系统
冷凝熱%再熱空氣%空調繫統
냉응열%재열공기%공조계통
condensing heat%reheat air%air conditioning system
为了解决一次回风式空调系统夏季制冷时耗电量大、能源浪费严重、运行成本高的问题及减小城市的局部“热岛效应”,提出了双冷凝器串联和并联的冷凝热再热空气的空调系统,并采用该系统对南京地区某演讲厅夏季空调系统进行了实例设计.运用TRNSYS软件分别模拟了串联型和并联型系统的动态性能,结果表明:①制取每千瓦冷量,冷凝热再热空气的空调系统可比一次回风式空调系统省电0.154 kW;②设计再热空气系统时,应避免并联型系统节流前存有气态制冷剂,若在安装空间充足的条件下,可优先选择串联型冷凝热再热空气系统.这为现有的一次回风式系统的节能改造和对新空调系统的设计提供参考.
為瞭解決一次迴風式空調繫統夏季製冷時耗電量大、能源浪費嚴重、運行成本高的問題及減小城市的跼部“熱島效應”,提齣瞭雙冷凝器串聯和併聯的冷凝熱再熱空氣的空調繫統,併採用該繫統對南京地區某縯講廳夏季空調繫統進行瞭實例設計.運用TRNSYS軟件分彆模擬瞭串聯型和併聯型繫統的動態性能,結果錶明:①製取每韆瓦冷量,冷凝熱再熱空氣的空調繫統可比一次迴風式空調繫統省電0.154 kW;②設計再熱空氣繫統時,應避免併聯型繫統節流前存有氣態製冷劑,若在安裝空間充足的條件下,可優先選擇串聯型冷凝熱再熱空氣繫統.這為現有的一次迴風式繫統的節能改造和對新空調繫統的設計提供參攷.
위료해결일차회풍식공조계통하계제랭시모전량대、능원낭비엄중、운행성본고적문제급감소성시적국부“열도효응”,제출료쌍냉응기천련화병련적냉응열재열공기적공조계통,병채용해계통대남경지구모연강청하계공조계통진행료실례설계.운용TRNSYS연건분별모의료천련형화병련형계통적동태성능,결과표명:①제취매천와랭량,냉응열재열공기적공조계통가비일차회풍식공조계통성전0.154 kW;②설계재열공기계통시,응피면병련형계통절류전존유기태제랭제,약재안장공간충족적조건하,가우선선택천련형냉응열재열공기계통.저위현유적일차회풍식계통적절능개조화대신공조계통적설계제공삼고.
In order to solve the problem of large power consumption , serious waste of energy and high operation cost when air conditioning system with primary return air is used for refrigeration in summer and to reduce urban local heat island effect , air conditioning system with two series and parallel condensers using condensing heat for reheating air is put forward in this paper and is conducted for the design of air conditioning system of a lecture hall in Nanjing area in summer .It also simulates the dynamic property of the series and parallel type system by TRNSYS.It comes to the following conclusion:①air conditioning system using condensing heat for reheating air can reduce power consumption by 10.8 kW than air conditioning system with primary return air when obtaining per kW refrigerating capacity;②when design the reheating air system , we should avoid some gaseous refrigerant before the throttle of the parallel type system .If there is enough installation space , the series type system using condensing heat for reheating air is the priority selection .It supplies references for existing air conditioning sys-tem with primary return air and original design of air conditioning system .