Electrolyzer Performance Analysis of an Integrated Hydrogen Power System for Greenhouse Heating. A Case Study

Pascuzzi, Simone; Anifantis, Alexandros Sotirios; Blanco, Ileana; Mugnozza, Giacomo Scarascia

doi:10.3390/su8070629

Cited by 56 publications

(40 citation statements)

References 40 publications

(30 reference statements)

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“…Other approaches consider alkaline technologies and larger systems (>1 MW) [25]. The values obtained here are for different purposes and the use of PEM technology is more suitable to the variability of the renewable sources than alkaline, thanks to its dynamic operation, as shown in previous studies [26].…”

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confidence: 70%

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

et al. 2018

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Diesel generators are currently used as an off-grid solution for backup power, but this causes CO 2 and GHG emissions, noise emissions, and the negative effects of the volatile diesel market influencing operating costs. Green hydrogen production, by means of water electrolysis, has been proposed as a feasible solution to fill the gaps between demand and production, the main handicaps of using exclusively renewable energy in isolated applications. This manuscript presents a business case of an off-grid hydrogen production by electrolysis applied to the electrification of isolated sites. This study is part of the European Ely4off project (n • 700359). Under certain techno-economic hypothesis, four different system configurations supplied exclusively by photovoltaic are compared to find the optimal Levelized Cost of Electricity (LCoE): photovoltaic-batteries, photovoltaic-hydrogen-batteries, photovoltaic-diesel generator, and diesel generator; the influence of the location and the impact of different consumptions profiles is explored. Several simulations developed through specific modeling software are carried out and discussed. The main finding is that diesel-based systems still allow lower costs than any other solution, although hydrogen-based solutions can compete with other technologies under certain conditions.

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confidence: 70%

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

et al. 2018

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“…The hydrogen produced by the electrolyzer is very efficient when it is converted into electricity using fuel cells with proton exchange membrane, which are actually electrochemical energy converters [38]. This equipment has the advantage that it can be used to produce electricity at any time using stored hydrogen, but only when it is necessary.…”

Section: Thermal Energy Production Systemmentioning

confidence: 99%

Design and Concept of an Energy System Based on Renewable Sources for Greenhouse Sustainable Agriculture

et al. 2018

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Bio-organic greenhouses that are based on alternative resources for producing heat and electricity stand out as an efficient option for the sustainable development of agriculture, thus ensuring good growth and development of plants in all seasons, especially during the cold season. Greenhouses can be used with maximum efficiency in various agricultural lands, providing ideal conditions of temperature and humidity for short-term plant growing, thereby increasing the local production of fruit and vegetables. This paper presents the development of a durable greenhouse concept that is based on complex energy system integrating fuel cells and solar panels. Approaching this innovative concept encountered a major problem in terms of local implementation of this type of greenhouses because of the difficulty in providing electrical and thermal energy from conventional sources to ensure an optimal climate for plant growing. The project result consists in the design and implementation of a sustainable greenhouse energy system that is based on fuel cells and solar panels.

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“…The hybrid system is also composed of auxiliary components that together require a constant electric power 0.6 kW for their operation. A programmable logic controller manages all the processes and the safety of the system [9]. …”

Section: The Integrated Power Systemmentioning

confidence: 99%

“…Today this problem has been resolved by storing the solar energy in chemical form such as in accumulative batteries, but these batteries typically have a limited lifetime and storage capacity. In recent years, solar energy accumulative systems in the form of chemical hydrogen energy from water electrolysis have been developed to optimize the electric current coming from the solar source and its transformation into hydrogen gas [9,10]. In this method, hydrogen gas is used as an energy vector for storing the solar energy.…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic and Hydrogen Plant Integrated with a Gas Heat Pump for Greenhouse Heating: A Mathematical Study

et al. 2018

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Nowadays, the traditional energy sources used for greenhouse heating are fossil fuels such as LPG, diesel and natural gas. The global energy demand will continue to grow and alternative technologies need to be developed in order to improve the sustainability of crop production in protected environments. Innovative solutions are represented by renewable energy plants such as photovoltaic, wind and geothermal integrated systems, however, these technologies need to be connected to the power grid in order to store the energy produced. On agricultural land, power grids are not widespread and stand-alone renewable energy systems should be investigated especially for greenhouse applications. The aim of this research is to analyze, by means of a mathematical model, the energy efficiency of a photovoltaic (8.2 kW), hydrogen (2.5 kW) and ground source gas heat pump (2.2 kW) integrated in a stand-alone system used for heating an experimental greenhouse tunnel (48 m 2 ) during the winter season. A yearlong energy performance analysis was conducted for three different types of greenhouse cover materials, a single layer polyethylene film, an air inflated-double layer polyethylene film, and a double acrylic or polycarbonate. The results of one year showed that the integrated system had a total energy efficiency of 14.6%. Starting from the electric energy supplied by the photovoltaic array, the total efficiency of the hydrogen and ground source gas heat pump system was 112% if the coefficient of the performance of the heat pump is equal to 5. The heating system increased the greenhouse air temperatures by 3-9 • C with respect to the external air temperatures, depending on the greenhouse cover material used.

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Electrolyzer Performance Analysis of an Integrated Hydrogen Power System for Greenhouse Heating. A Case Study

Cited by 56 publications

References 40 publications

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

Use of Hydrogen in Off-Grid Locations, a Techno-Economic Assessment

Design and Concept of an Energy System Based on Renewable Sources for Greenhouse Sustainable Agriculture

Photovoltaic and Hydrogen Plant Integrated with a Gas Heat Pump for Greenhouse Heating: A Mathematical Study

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