BOMBAS DE CALOR DE CO2 PRODUCCIÓN EFICIENTE Y SOSTENIBLE DE ACS EN HOTELES Prestar atención al consumo de agua caliente sanitaria (ACS) de un hotel puede implicar un ahorro económico y energético muy importante a lo largo de toda su vida útil. En una sociedad cada vez más implicada con el ahorro del agua y su uso de manera eficiente, no podemos olvidar ni restar importancia a la forma de producir esa agua, ya que ese gasto supone aproximadamente una cuarta parte del consumo energético del hotel. Producir ACS con extraordinarios rendimientos ya es posible gracias a la tecnología de la bomba de calor de CO2. La multinacional japonesa Mitsubishi Heavy Industries, representada por Lumelco, ha posicionado la bomba de calor Q-TON en este mercado, y grandes marcas hoteleras, que han apostado por este sistema, ya están viendo reconocidos sus esfuerzos en materias de sostenibilidad y eficiencia energética. CO2 HEAT PUMPS: EFFICIENT AND SUSTAINABLE DHW PRODUCTION IN HOTELS Paying attention to the consumption of domestic hotwater (DHW) in a hotel can lead to a considerable economic and energy saving throughout its entire service life. In a society that is increasingly more concerned about savingwater and its efficient use,we cannot ignore or play down theway in which thatwater is produced, as that expenditure represents approximately one quarter of the energy consumption of the hotel. Producing DHWwith extraordinary levels of efficiency is now possible thanks to CO2 heat pump technology. Japanese multinational Mitsubishi Heavy Industries, represented by Lumelco, has brought its Q-TON heat pump into this market and major hotel names that have committed to this system are already seeing their efforts as regards sustainability and energy efficiency recognised. El concepto de sostenibilidad energética ya está involucrado en cada uno de los nuevos proyectos hoteleros que se realizan, así como en las rehabilitaciones de éstos. Esto es porque la concienciación sobre temas medioambientales ya está presente en la vida cotidiana de las personas, pero la realidad es que la importancia de estos aspectos es tal, que todos los estados de la UE están obligados a incluir el tema de los recursos energéticos en su política exterior. La sostenibilidad energética engloba conceptos como son la mitigación del impacto ambiental y la seguridad energética, entendiéndose como el uso de fuentes de energía alternativas frente al uso de las convencionales fuentes agotables. Por estos motivos, un hotel, que es un gran consumidor de energía, tiene una implicación máxima en este contexto. La demanda de ACS, que es una de las grandes partidas de un hotel, puede suponer un gran coste (económico, ambiental y de seguridad) o por el contrario verse como un ahorro energético. Producir ACS a alta temperatura de forma renovable ya es posible con la bomba de calor de CO2 Q-TON. Q-TON es capaz de producir agua a partir de 60 °C y hasta un máximo de 90 °C con un refrigerante ecológico, el CO2, con un índice de calentamiento global [GWP] de 1 frente al de otros gases fluorados convencionales como el R-410A, con 2088 y un potencial de destrucción de la capa de ozono [ODP] de 0. Con este sistema se reducen notablemente las emisiones de CO2 al ambiente y el alto rendimiento de la máquina reduce la factura económica del hotel. Con relación a esta idea, llegan certificados y galardones que premian a los proyectos que apuestan por estos conceptos. BREEAM® es un sistema de evaluación de la sostenibilidad en proyectos de construcción The concept of energy sustainability already forms part of each and every new hotel project being performed, including refurbishments. This is because awareness as regards environmental issues is now present in the everyday life of the individual. However, the truth is that the importance of these aspects is such that every EU Member State is obliged to include the issue of energy resources in their external policy. Energy sustainability encompasses concepts such as mitigating the environmental impact and energy security, which is understood as being the use of alternative energy sources over finite conventional fuels. For these reasons, a hotel, which is a major consumer of energy, has maximum involvement in this context. Demand for DHW, which is one of the main balance sheet entries for a hotel, can represent a huge cost (economic, environmental and security) or alternatively, be seen as an energy saving. Producing high temperature DHW from renewable sources is already possible thanks to the Q-TON CO2 heat pump. Q-TON can produce water from 60°C and up to a maximum of 90°C using an ecological coolant, CO2, with a global warming potential (GWP) of 1 compared to other conventional fluorinated gases, such as R-410A with a GWP of 2088 and zero ozone depletion potential (ODP). This system significantly reduces emissions of CO2 into the environment and the high efficiency of the machine brings down the hotel’s bill. Certificates and awards exist, which recognise those projects that support such concepts. BREEAM® is a system that assesses the sustainability of construction projects based on different categories. Its predominant aims include: promoting the use of low environmental impact materials; improving the energy efficiency of the building; and fostering the reutilisation and/or conservation of the building. Q-TON is a clear example of how its installation in hotels favours this type of certifications and recognitions for eco-friendly issues. Major hotel chains are opting for this system and are seeing the difference as regards these aspects. For example, the 4-star Vincci The Mint Hotel was selected as one of the ten best sustainability and energy refurbishment projects in the hotel sector at the V Edition of the Re Think Awards. This establishment received the award due to its status as a sustainable hotel and thanks to all the features and measures it has implemented that foster greater energy efficiency and care for its environment. Eficiencia Energética: Hoteles | Energy Efficiency: Hotels FuturEnergy | Abril-Mayo April-May 2020 www.futurenergyweb.es 69
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