*Heat Transfer - Design, Experimentation and Applications*


*Nu* Nusselt number [-] *obj* Objective function value [US\$] *Pr* Prandtl number [-] *Q* Heat transferred [W] *QE* Total accumulate heat exchanged [MW] *R t*ð Þ Actual fouling resistance at a specified time [m<sup>2</sup>

*EMbaffle® Heat Transfer Technology Step-Up in CO2 Reduction*

*DOI: http://dx.doi.org/10.5772/intechopen.96253*

*Reh* Heat transfer Reynolds number [-] *Rep* Longitudinal flow Reynolds number [-] *SWD* Short way of diamond [m] *t* Time [s]

*tf* Operating campaign time [s] *VB* Baffle velocity calculated from Ab [m/s] *Vs* Shell-side velocity calculated form As [m/s] *U* Overall heat transfer coefficient [W/m<sup>2</sup>

*U*<sup>∞</sup> Overall heat transfer coefficient at equilibrium [W/m<sup>2</sup>

*U*<sup>0</sup> Overall heat transfer coefficient, initial [W/m<sup>2</sup>

*We* Effective mass per unit length [kg/m] Δ*Tlm* Logarithmic mean temperature difference [K] Δ*Tm* Average temperature driving force [K] Δ*P* Pressure Drop [Pa] Δ*PB* Baffle flow pressure drop [Pa] Δ*PL* Longitudinal flow pressure drop [Pa] *λ* Wall thermal conductivity [W/m K] *μ<sup>b</sup>* Bulk viscosity [Pas] *μ<sup>w</sup>* Wall viscosity [Pas] *ρ* Mass density [kg/m<sup>3</sup>

Marco Rottoli\*, Daniele Agazzi, Marcello Garavaglia and Fabio Grisoni EMbaffle® Technology @ Brembana&Rolle SpA, Valbrembo, Italy

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

\*Address all correspondence to: mrottoli@brembanarolle.com

provided the original work is properly cited.

*t*<sup>0</sup> Time the heat exchanger has just been cleaned out

or installed

**Author details**

**345**

K/W]

K]

K]

K]

]

[s]

#### **Table 3.**

*Design comparison between EMbaffle® and a conventional S&T for a CO2 regenerator.*
