Fredy Vélez

A technical, economical and market review of organic Rankine cycles for the conversion of low-grade heat for power generation

Fredy Vélez, José J. Segovia, M. Carmen Martín et al. · Renewable and Sustainable Energy Reviews · 2012 · 504 citations · Full text

Co-gasification of Colombian coal and biomass in fluidized bed: An experimental study

Fredy Vélez, Farid Chejne, Carlos F. Valdés et al. · Fuel · 2008 · 201 citations · Full text

Carbon Sequestration, Engineering, Bioenergy +10

How to Achieve Positive Energy Districts for Sustainable Cities: A Proposed Calculation Methodology

Andrea Gabaldón, Fredy Vélez, Beril Alpagut et al. · Sustainability · 2021 · 75 citations · Full text

Engineering, Positive Energy District, Sustainable Cities +12

Low temperature heat source for power generation: Exhaustive analysis of a carbon dioxide transcritical power cycle

Fredy Vélez, José J. Segovia, Farid Chejne et al. · Energy · 2011 · 74 citations

Exhaustive Analysis, Electrical Engineering, Engineering +9

Theoretical analysis of a transcritical power cycle for power generation from waste energy at low temperature heat source

Fredy Vélez, Farid Chejne, Gregorio Antolín et al. · Energy Conversion and Management · 2012 · 57 citations · Full text