2) petal shaped fin tube
花瓣状翅片管
1.
Heat transfer and pressure drop characteristics of petal shaped fin tube and low finned tube heat exchanger with helical baffles were introduced,in which compressed air folwing in the shell side.
以现场的压缩空气为工质 ,分别对花瓣状翅片管 (以下简称为 PF管 )与低肋管在螺旋隔板支承下的传热与流阻性能进行实验研究。
2.
In this paper,it introduced heat transfer and pressure drop characteristics of different tubes,Petal shaped fin tube and Low finned tube,under helical baffles,while compressed air flowing in the shell side.
以现场的压缩空气为工质，分别对花瓣状翅片管（ＰＦ管） 与低肋管在螺旋隔板的支承下的传热与流阻性能进行了实验研究，研究结果表明花瓣状翅片管比低肋管具有更优越的传热性能，在同等的传热量下，ＰＦ管螺旋隔板换热器的气侧传热系数比低胁管螺旋隔板换热器高出２０ ％ ～５０ ％ ，其压力损失比低肋管低３０ ％ ～４０ ％ 。
3) Petal fin formed tube
花瓣状翅片管
1.
Experimental study is conducted to investigate heat transfer enhancement and flow resistance performance of air transversal flow over Petal fin formed tube,and mechanism of heat transfer enhancement is also analyzed herein.
以空气为介质横向冲刷花瓣状翅片管（包括单管与管束）进行强化传热与流阻性能实验研究，并对其传热强化机理进行分析，结果表明，花瓣状翅片管的非连续周向翅片具有极好的传热强化效果，在实验范围内（Ｒｅ＝１０３～２×１０４），本文提出了横向冲刷花瓣状翅片管传热性能的计算方法与理论分析模型，其计算结果与实验值符合良好。
2.
Experimental study is conducted to investigate the performance of heat transfer enhancement and flow resistance of air longitudinal flow over smooth tube and Petal fin formed tube in shell side of heat exchanger.
以空气为介质，以纵向流动方式冲刷光滑管与花瓣状翅片管进行管壳式换热器壳程的传热强化与流阻性能实验研究。
4) petal shaped fin tube
花瓣形翅片管
1.
The situation,progress and achievement in enhancing heat transfer research of petal shaped fin tube under condensation heat transfer of low surface tension working fluid and its mixture,and the steam including air,and cooling heat transfer of air and oil conditions ,and its practical application prospect are surveied in this paper.
综述了花瓣形翅片管在低表面张力介质及其混合物中的冷凝强化传热、含不凝性气体水蒸气的冷凝强化传热以及空气和油的冷却强化传热等方面的研究概况、进展、成果及其工业应用前景。
2.
In this paper, the heat transfer performance of foed convective Condensation and the heat transfer enhancement mechanism on the petal shaped fin tube (PF tube) are studied.
本文研究了花瓣形翅片管（ＰＦ管）在水平套管之环形通道内强制对流冷凝的传热性能及传热强化机理。
5) bipetalous adj.
花瓣有两片的
6) a white sheet of blossom
一大片白花
补充资料：一片
【诗文】：
一片非烟隔九枝，蓬峦仙仗俨云旗。天泉水暖龙吟细，
露畹春多凤舞迟。榆荚散来星斗转，桂花寻去月轮移。
人间桑海朝朝变，莫遣佳期更后期。
【注释】：
【出处】：
全唐诗：卷539-158
一片非烟隔九枝，蓬峦仙仗俨云旗。天泉水暖龙吟细，
露畹春多凤舞迟。榆荚散来星斗转，桂花寻去月轮移。
人间桑海朝朝变，莫遣佳期更后期。
【注释】：
【出处】：
全唐诗：卷539-158
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条