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pro vyhledávání: '"Vítor A. F. Costa"'
Autor:
Vítor A. F. Costa
Publikováno v:
Energies, Vol 17, Iss 17, p 4223 (2024)
Thermodynamics is based on its Four Laws structure. Based on Thermodynamics and its Four Laws structure, this work presents and explores its economic counterpart, proposing an economic Four Laws structure to look at Economics through the eyes of Ther
Externí odkaz:
https://doaj.org/article/73570419a99f43eab17180ef57e27bb6
Autor:
Vítor A. F. Costa
Publikováno v:
Energies, Vol 17, Iss 11, p 2478 (2024)
Based on Thermodynamics and its well-established First and Second Laws, this work presents and explores their economics counterparts, introducing new concepts, variables, and equations. This includes, among others, the economic counterparts of temper
Externí odkaz:
https://doaj.org/article/4d948d57fa2f43b9b39e79e7b53cbd03
Autor:
João M. S. Dias, Vítor A. F. Costa
Publikováno v:
Clean Technologies, Vol 4, Iss 4, Pp 1152-1161 (2022)
This paper presents an adsorption cooler (AC) driven by the surplus heat of a solar thermal domestic hot water system to provide cooling to residential buildings. A cylindrical tube adsorber using granular silica gel as adsorbent and water as adsorba
Externí odkaz:
https://doaj.org/article/4abdbe8223624587ac008af9f42c5ef5
Autor:
Francisco B. Lamas, Vítor A. F. Costa
Publikováno v:
Clean Technologies, Vol 4, Iss 3, Pp 815-823 (2022)
Characterizing the refrigerant side of heat pump water heaters (HPWHs) can be intrusive and expensive. On the other hand, direct external measurement techniques can be unfeasible, particularly in commercial HPWHs for residential applications. Non-int
Externí odkaz:
https://doaj.org/article/ab6b1b93d1194c8389f9d9e30ef0ad2e
Publikováno v:
Energies, Vol 17, Iss 1, p 180 (2023)
The use of hydrogen as an energy carrier within the scope of the decarbonisation of the world’s energy production and utilisation is seen by many as an integral part of this endeavour. However, the discussion around hydrogen technologies often lack
Externí odkaz:
https://doaj.org/article/4cc56b1892184dca92b6a36f5403d4d6
Autor:
João M. S. Dias, Vítor A. F. Costa
Publikováno v:
Energies, Vol 14, Iss 21, p 6878 (2021)
This work investigates the effects of several parameters on the coefficient of performance (COP) and the specific heating power (SHP) of a coated-tube adsorber for adsorption heat pumps (AHP) suitable for water heating (space and/or domestic water he
Externí odkaz:
https://doaj.org/article/ebb48f7958a14ec39f065838b4ed2a3f
Autor:
Vítor A. F. Costa
Publikováno v:
Numerical Heat Transfer, Part B: Fundamentals. 81:1-13
An innovative methodology and a virtual test bench (VTB) are proposed to support the design of water heaters’ control strategies. This platform allows to speed up the development and evaluation of control systems even before the existence of protot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bbce52d675a59a6c0303c3db32bcdc4
http://hdl.handle.net/10773/34306
http://hdl.handle.net/10773/34306
Publikováno v:
International Journal of Applied Ceramic Technology. 18:1801-1813
Autor:
Vítor A. F. Costa
Publikováno v:
Numerical Heat Transfer, Part B: Fundamentals. 79:55-69
This work aims to clarify and discuss, in a simultaneously accurate and simple way, some relevant issues on the stability and convergence of numerical solutions that are not usually presented in th...