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炉膛传热计算方法可以分为两类:一、直接计算辐射换热量;二、根据投射热计算换热量。除苏联古尔维奇方法属于第二类外,其它各种方法基本上都属于第一类。第一类方法的基本公式是四次方温差公式,它是根据传热学的基本原理得到的,适应性比较广。古尔维奇方法则是在热有效系数ψ(辐射换热热流密度q_f与投射热流密度q_t之比)为常数的前提下得到的。炉膛传热计算中的一个关键问题是如何
Furnace heat transfer calculation methods can be divided into two categories: First, direct calculation of radiation heat transfer; Second, heat transfer calculated according to the projection heat. In addition to the Soviet Gurvich method belongs to the second category, the other various methods are basically belong to the first category. The first type of method is the basic formula fourth temperature difference formula, which is based on the basic principles of heat transfer obtained, a wide adaptability. The Gurwitz method is based on the assumption that the thermal efficiency coefficient ψ (the ratio of the radiation heat flux q_f to the projected heat flux q_t) is constant. One of the key issues in the calculation of furnace heat transfer is how