Recent content by Seta

Yes that's true, this isn't for one shower only, i should've added more. Honestly, i am a little bit lost, i started calculations with 80% recovery : q = 0.8 * 2 * 4.1786 * (43 - 15) = 187.2 kW // I took Cp_c at T = (43+15)/2 = 29 °C Now i'll start to work with NTU-eps method: q_max =...

Alright, thank you so much !

From what i understand, i have to take Th,o = 15 °C and Tc,o = 38 °C , but if i do so, which value should i take for LMTD since ( Th,i - Tc,o ) = ( Th,o - Tc,i ) = 0 ? On the other hand, when i asked my teacher about the preaheat temperature Tc,o , he said that it has to be calculated.

Sorry, it's my first time using this forum. What i want to do is to find the number of hairpins needed with : Q = UA_hp *LMTD*N_hp where A_hp is the area of the inner tube of one hairpin HX, and N_hp is the number of hairpins. The problem here is that to find Q i have to know either the outlet...

Summary:: I need to know the preheat temperature of the water entering the gas boiler (which i think is the outlet temperature of the cold water Tc,o leaving the heat exchanger) Hi, I'm doing a design project of a hairpin heat exchanger. The problem is: In a public shower, the city water is...