Modelling, simulation and analysis of solar absorption power-cooling systems

López-Villada, Jesús; Ayou, Dereje S.; Bruno, Joan Carles; Coronas, Alberto

doi:10.1016/j.ijrefrig.2013.11.004

Cited by 47 publications

(11 citation statements)

References 16 publications

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“…The first law of thermodynamics is the basis of the law of conservation of energy and which help us to quantify the thermal or work interactions in all components of the absorption machine by considering each component as an open system with entry and exit streams and energy exchange. Energy analysis of the system is based on the following relation [25–27].

\sum Q - \sum W = \sum {\dot{m}}_{out} h_{out} - \sum {\dot{m}}_{in} h_{in}

…”

Section: Thermodynamic Analysis Of Vapour Absorption Chillermentioning

confidence: 99%

Investigations on water–LiBr‐based absorption refrigerator with solar parabolic dish in cogeneration mode

Shukoor

Reddy

2019

IET Renewable Power Generation

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Here, performance of 11 kW solar-powered lithium bromide water absorption chillers in cogeneration mode is investigated. A 40 m 2 solar parabolic dish of 19 kW th capacity is used for both processes heating and cooling. Extensive thermodynamic design and analysis are carried out, and the results obtained are validated. Parabolic dish and cavity receiver are sized for Chennai (13°N, 80.18°E), India. In the present analysis, a new performance parameter COP WE is introduced by replacing the thermal input component in the calculation of COP, by an equivalent amount of high-grade energy. Both physical and chemical exergy at all state points of the chiller are estimated and found that total irreversibility is about 2.37 kW in desorber followed by absorber which is 0.41 kW. The developed model estimates solution concentration at the exit of solution expansion valve (SEV) that is important since it affects absorption of refrigerant in the absorber.

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\sum Q - \sum W = \sum {\dot{m}}_{out} h_{out} - \sum {\dot{m}}_{in} h_{in}

…”

Section: Thermodynamic Analysis Of Vapour Absorption Chillermentioning

confidence: 99%

Investigations on water–LiBr‐based absorption refrigerator with solar parabolic dish in cogeneration mode

Shukoor

Reddy

2019

IET Renewable Power Generation

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“…At the current time-step calculation, the PTC module reads GBt and Ta data from the corresponding lookup tables and receives as input the fluid temperature Tfi from the storage tank. Then it solves the Equations (3), (8), (10) and (12). The output of this module is the fluid output temperature Tfo, further used as input in the storage tank module.…”

Section: Numerical Proceduresmentioning

confidence: 99%

Thermal Analysis of a Solar Powered Absorption Cooling System with Fully Mixed Thermal Storage at Startup

Stanciu

Gheorghian

2017

Energies

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Abstract:A simple effect one stage ammonia-water absorption cooling system fueled by solar energy is analyzed. The considered system is composed by a parabolic trough collector concentrating solar energy into a tubular receiver for heating water. This is stored in a fully mixed thermal storage tank and used in the vapor generator of the absorption cooling system. Time dependent cooling load is considered for the air conditioning of a residential two-storey house. A parametric study is performed to analyze the operation stability of the cooling system with respect to solar collector and storage tank dimensions. The results emphasized that there is a specific storage tank dimension associated to a specific solar collector dimension that could ensure the longest continuous startup operation of the cooling system when constant mass flow rates inside the system are assumed.

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“…The main characteristic of this cycle configuration is the ability to operate in three different modes of operation by controlling its vapor split ratio: only cold mode, only power mode, and co-production mode with various power/cold ratios. A detailed cycle process description and its performance analysis for three ammonia-based working fluids were presented in Lopez-Villada et al (2013).…”

Section: Single-stage Combined Absorption Power and Refrigeration Cycmentioning

confidence: 99%

Combined absorption power and refrigeration cycles using low- and mid-grade heat sources

Ayou

Bruno

Coronas

2015

Science and Technology for the Built Environment

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Modelling, simulation and analysis of solar absorption power-cooling systems

Cited by 47 publications

References 16 publications

Investigations on water–LiBr‐based absorption refrigerator with solar parabolic dish in cogeneration mode

Investigations on water–LiBr‐based absorption refrigerator with solar parabolic dish in cogeneration mode

Thermal Analysis of a Solar Powered Absorption Cooling System with Fully Mixed Thermal Storage at Startup

Combined absorption power and refrigeration cycles using low- and mid-grade heat sources

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