Consumption and Emissions Analysis in Domestic Hot Water Hotels. Case Study: Canary Islands

Francisco Javier Díaz Pérez, Ricardo Díaz Martín, Francisco Javier Pérez Trujillo, Moises Díaz and Adib Guardiola Mouhaffel
Additional contact information
Francisco Javier Díaz Pérez: Universidad San Jorge, 50830 Zaragoza, Spain
Ricardo Díaz Martín: Faculty of Technical Sciences and Engineering, Universidad a Distancia de Madrid (UDIMA), 28400 Madrid, Spain
Francisco Javier Pérez Trujillo: Department of Chemical and Materials Engineering, Universidad Complutenese de Madrid, 28040 Madrid, Spain
Moises Díaz: ESCOEX, Universidad del Atlántico Medio, 35017 Las Palmas de Gran Canaria, Spain
Adib Guardiola Mouhaffel: Electric engineering, Universidad de Las Palmas de Gran Canarias, 35001 Las Palmas de Gran Canaria, Spain

Sustainability, 2019, vol. 11, issue 3, 1-17

Abstract: We analyze the energy consumption of domestic hot water (DHW) in the hotels of the archipelago of the Canary Islands (Spain). Currently, systems use fossil fuels of propane and gas oil. However, this paper analyzes several alternative systems which focus on renewable and mixed energies, such as biomass, solar thermal and heat pumps systems associated with an electric generation with photovoltaic solar panels for self-consumption. The carbon footprint generated is calculated for each method of generation of DHW. In our analysis, we demonstrate that by using a high-temperature heat pump with an average coefficient of performance (COP) equal to or greater than 4.4 associated with photovoltaic solar panels, a zero-emission domestic hot water system can be achieved, when the installation area of the photovoltaic solar panels is equal to that of the solar thermal system. The importance of DHW’s carbon footprint is proven, as is the efficiency of using high-temperature heat pumps associated with photovoltaic solar panels. As such, such mixed system suggests that the generation of DHW would have zero emissions with maximum annual savings according to hotel occupancy, between 112,417 and 137,644 tons of carbon dioxide (CO 2 ), compared to current boilers based on fossil fuels.

Keywords: Carbon Footprint; DHW; biomass; photovoltaic; solar thermal; heat pump (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.mdpi.com/2071-1050/11/3/599/pdf (application/pdf)
https://www.mdpi.com/2071-1050/11/3/599/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:11:y:2019:i:3:p:599-:d:200255

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().