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Kabra, Abhishek (author), Becker, T. (author), Wang, M. (author), Infante Ferreira, C.A. (author), Vlugt, T.J.H. (author)
Force Field based Monte Carlo (MC) simulations are conducted to predict the performance of an absorption heat pump cycle involving NH3/ionic liquid (IL) (refrigerant/absorbent) as working pair. To investigate the thermodynamic performance of the cycle, various properties such as the enthalpy of absorption, heat capacity, and solubility of...
conference paper 2017
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Shi, Liang (author), Infante Ferreira, C.A. (author), Gerritsen, Jan (author), Kalkman, Hendrine (author)
CO2 is a promising refrigerant compared to traditional HFCs due to its insignificant global warming potential and nonthreatening to the ozone layer. It has been used as refrigerant in industrial and commercial refrigeration in recent years. With high compactness and the ability to recover heat, CO2 booster systems have been widely installed in...
conference paper 2017
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Pineda Quijano, Diego (author), Infante Ferreira, C.A. (author), Duivenvoorden, Wil (author), Mieog, Juriaan (author), van der Noortgaete, Tom (author), van Velpen, Bart (author)
The recovery of cold energy during the regasification of Liquefied Natural Gas (LNG) has gained attention in recent years due to the fast growth of the LNG trade market and the increasing importance that governments are giving to energy efficiency and sustainability. Near 200 kWh/ton of LNG are potentially recoverable during the regasification...
conference paper 2017
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Shi, Liang (author), Gudjonsdottir, V. (author), Infante Ferreira, C.A. (author), Rexwinkel, Glenn (author), Kiss, Anton A. (author)
Compression resorption heat pumps (CRHP) are a promising option to upgrade waste heat from industry. Alternative working fluids can further improve the efficiency of CRHP. The ternary mixture NH3-CO2-H2O has been identified as a promising working fluid for CRHP and has the potential to further enhance the coefficient of performance (COP) of the...
conference paper 2017
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Ezzahiri, Sidi Mohamed (author), Nasif, Badia S. (author), Krieg, Jan (author), Bakker, Anco (author), Infante Ferreira, C.A. (author)
The search for renewable energy sources is a wide area in which significant progress is still expected. This paper focuses on an energy system that uses Fresnel lenses to concentrate sunlight on a tubing system to heat up the working fluid. Fresnel lenses are lighter, thinner and cheaper to build than ordinary lenses. The model is designed to be...
conference paper 2017
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Wang, M. (author), Infante Ferreira, C.A. (author)
Ionic liquids (ILs), as novel absorbents, draw considerable attention for their potential roles in replacing H2O or LiBr aqueous solutions in conventional NH3/H2O or H2O/LiBr absorption chiller or heat pump cycles. In this paper, NH3/IL working pairs are proposed for implementation in parallel double effect heat pump systems. To investigate...
conference paper 2017
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Pineda Quijano, Diego (author), van der Pal, Michel (author), Infante Ferreira, C.A. (author), Boer, de, Robert (author), Vollenbroek, Jasper (author)
The last step in the production of milk powder is drying, an energy intensive process that demands 30% to 40% of the total energy input of a typical plant. It takes place in Spray Dryers (SD), where concentrated milk is sprayed and placed in direct contact with hot and dry air that cools down and gains humidity as water is evaporated from milk....
conference paper 2017
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Lobregt, S. (author), Broeze, J. (author), Infante Ferreira, C.A. (author)
For rapid chilling fresh products we propose the immersion in melting carbon dioxide hydrate crystals, produced at +8 oC and 30 bar. We compare the chilling time of a specific fresh product from 30 to 4 oC making use of a “shock freezer” (2 m/s air velocity, air at -10 oC) and applying a slurry of CO2 hydrate crystals. Furthermore the effect of...
conference paper 2016
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Zhou, H. (author), Infante Ferreira, C.A. (author)
Hydrate slurry has been reported to be a suitable secondary fluid for refrigeration and air-conditioning systems. The latent heat of CO2 hydrate is 387 kJ/kg under phase equilibrium condition of 7 °C and 30 bar. The utilization of CO2 hydrate slurry in air-conditioning systems is promising in improving the energy efficiency and shifting energy...
conference paper 2016
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Gudjonsdottir, V. (author), Infante Ferreira, C.A. (author)
Couple of models have been developed to calculate thermodynamic properties of NH3-CO2-H2O systems. These models are typically an equation of state for the vapor phase and an activity coefficient model for the liquid phase (Que & Chen, 2011). The activity coefficient models can be divided into three groups based on previous studies, Pitzer...
conference paper 2016
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Wang, M. (author), Infante Ferreira, C.A. (author)
This paper describes a properties-optimization work for the working fluids in NH3 / ionic liquid (ILs) based single-effect absorption heat pumps. The optimum parameters of the IL can be used as criteria in screening task-specified ILs, which play the role of absorbents, in absorption heat pumps. First, a 8-parameter thermodynamic model to...
conference paper 2016
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Rasooli, A. (author), Itard, L.C.M. (author), Infante Ferreira, C.A. (author)
Large deviations observed between the actual and theoretical gas consumption in Dutch dwellings, cast a shadow of doubt on the accuracy of the energy labeling method. In this sense, the accuracy of the calculation methods as well as the inputs being fed, fall under the question. According to several studies, the significance of wall’s thermal...
conference paper 2016
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