Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/1966
標題: 高負荷熱水器之性能研究
Experimental Study on High-Load Water Heater Performance
作者: 王富正
Wang, Fuh-Jeng
關鍵字: high-load water heater;高負荷熱水器;degree;secondary pressure;excess air ratio;ais fuel ratio;號數;二次壓;過剩空氣比;空燃比
出版社: 機械工程學系
摘要: 
荷熱水器之號數、二次壓、熱效率、燃氣入熱量、過剩空氣比、空燃比、
移火不良、黃端 燄形成之原因分析。為瞭解廢氣排放情形,本文從事CO
和CO/CO2的廢氣分析。本文所研究 的高負荷熱水器為一新型之機種,與
傳統性熱水器相較,具有高號數、高熱效率、高安全 性、低污染性(3
高1低)等優點。實驗方法以CNS 3662號、CNS 13602號及CNS 13603號為
標準。由本實驗結果顯示:二次壓P2與CO/CO2之關係式,可用5階(Order
)之多項式 (Polynomial)來配合。實驗結果顯示,丙烷和丁烷的
最 高熱效率、號數皆發生於入風口截面
為全開的87%處。對丙烷燃氣而言,當78%≦λ<152.3%且42.4≦AF
<60.1時,可避免移火不良、鳴叫聲發生,而其廢氣分析均在安全範圍內
。丁烷在高空燃比(AF=79.4以上)及高過剩空氣比(λ=156.7以上)時
,會有移火不良 之問題,然而在低空燃比(AF=47.7以下)、低過剩空
氣比(λ=54.2%以下)時,CO/CO2 已達2.83%以上,不符合CNS所定之
規範。

water heater.The experimental fuels of the water heater includes
chosen as Propane and Butane,and the studying parameters
include degree of high-load water heater,secondary pressure,
efficiency,input heat of fuel,excess air ratio,air-fuel
ratio,unmove-flame and yellow tip.The exhaust gases of CO and
CO/CO2 ratio are also measured to determine the combustion
conditions.The present research of high-load water heater is
a new type and have the advantage of the high degree,
high efficiency,high safty and low air-polltion. The Chinese
National Standard 3662,13602 and 13603 are selected as the
guidelines in present experimental study.The results show that
the relations between the secondary pressure and CO/CO2 can
be found to be fitted by a fifth order polynomial.The
highest thermal efficiency and degree of the Propanehen 78%≦λ
<152.3%,42.4 ≦AF<60.1 .Its exhaust gases are all in the safe
range.But for Butane,the unmove-flame appears at the conditions
of the high air-fuel ratio (above AF=79.4)and high excess
air ratio(above 156.7%) .The content of CO/CO2 for the Butane
at the low air-fuel ratio(under AF=47.7) and low excess air
ratio(under λ=54.2%) conditions is 2.83% and the value does
not satisfy the CNS requirement.
URI: http://hdl.handle.net/11455/1966
Appears in Collections:機械工程學系所

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