Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Hector Ivan Velásquez"'
Publikováno v:
Dyna, Vol 78, Iss 166, Pp 68-74 (2011)
Un modelo matemático que describe y simula el comportamiento térmico de una estufa solar fue desarrollado en base en la analogía de resistencias aléctricas. El modelo matemático incluye los tres diferentes mecanismos de transferencia de calor en
Externí odkaz:
https://doaj.org/article/18c4cb022cfb4c5babab4cddc2665bf4
Publikováno v:
Journal of Sustainable Mining. 19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d70adc68d9db2d1686e5262d92fb146e
https://doi.org/10.46873/2300-3960.1013
https://doi.org/10.46873/2300-3960.1013
Publikováno v:
Journal of Sustainable Mining. 19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16060f31332dc0840a3ef2e54a71aac4
https://doi.org/10.46873/2300-3960.1014
https://doi.org/10.46873/2300-3960.1014
Autor:
Luiz Felipe Pellegrini, Carlos Eduardo Keutenedjian Mady, Julio A.M. da Silva, Juan Carlos Burbano, Ralf Lattouf, Ricardo Gandolfi, Izabela Batista Henriques, Silvio de Oliveira Junior, Tuong-Van Nguyen, Hector Ivan Velásquez, Daniel Flórez-Orrego
Publikováno v:
Energy. 161:482-492
This paper describes how the scientific contributions of Prof. Szargut and his co-workers have inspired the academic activities of the Exergy Team of the Laboratory of Environmental and Thermal Engineering (LETE) of the Polytechnic School of the Univ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f19c4a948a1900add94be956982397c2
https://doi.org/10.1016/j.energy.2018.07.155
https://doi.org/10.1016/j.energy.2018.07.155
Autor:
Hector Ivan Velásquez, Daniel Flórez-Orrego, Moises Teles dos Santos, Silvio de Oliveira Junior, Meire Ellen Gorete Ribeiro Domingos
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The black liquor is a byproduct of the kraft pulping process that contains more than half of the exergy content in the total woody biomass fed to the digester, representing a key supply of renewable energy to the pulping process. In this work, the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8968e5c5fb4269d9021b366e7a3f5490
https://doi.org/10.1504/ijex.2021.115083
https://doi.org/10.1504/ijex.2021.115083
Autor:
Daniel Flórez-Orrego, Silvio de Oliveira Junior, Hector Ivan Velásquez, Rafael Nogueira Nakashima
Publikováno v:
International Journal of Exergy. 33:44
Biomass conversion into either electricity or biofuels requires various energy intensive processes that may drastically affect its technical and environmental competitiveness against their non-renewable counterparts. Therefore, in this paper, a compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::666ee7352d8d7157b6d6f3be0e423dc0
https://doi.org/10.1504/ijex.2020.10031783
https://doi.org/10.1504/ijex.2020.10031783
Autor:
Darío Gallego Suárez, Gerardo J. Ruiz-Mercado, Natalia A. Cano Londoño, Hector Ivan Velásquez
Publikováno v:
Journal of cleaner production. 141
This contribution describes the application of an emergy-based methodology for comparing two management alternatives of biosolids produced in a wastewater treatment plant. The current management practice of using biosolids as soil fertilizers was eva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2be70982769c1b608d0c50a831420b9
https://pubmed.ncbi.nlm.nih.gov/30245553
https://pubmed.ncbi.nlm.nih.gov/30245553
Publikováno v:
Energy. 74:181-189
A torrefaction process in a TGA (Termo-gravimeter analyzer) for six different types of residual biomass (sugarcane bagasse, banana rachis, rice husk, palm oil fiber, sawdust and coffee waste) was developed in this paper. These six materials were eval
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a8c7b20098a82a7f10d15e20759a8b
https://doi.org/10.1016/j.energy.2014.05.046
https://doi.org/10.1016/j.energy.2014.05.046
Publikováno v:
Ecological Indicators. 107:105600
Emergy analysis and combined emergy and Life Cycle Assessment (EM-LCA) were used to evaluate the sustainability of an open-pit gold mine and an alluvial gold mine in Colombia. The emergy is the work done to support the gold production separated into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a40dd49d56b7115fa726cc4dc9cbeddf
https://doi.org/10.1016/j.ecolind.2019.105600
https://doi.org/10.1016/j.ecolind.2019.105600
Publikováno v:
Energy. 54:97-103
The aim of this work is to evaluate some production processes of biomass-derived fuels by introducing an exergo-environmental indicator called the Renewability Performance Indicator ( λ ). This study clearly demonstrates that not all biofuel product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c65cb5232acbee4d2f7da44707255b6f
https://doi.org/10.1016/j.energy.2013.03.037
https://doi.org/10.1016/j.energy.2013.03.037