Modelling of a solar desiccant cooling system using a TRNSYS-MATLAB co-simulator: A review

Sudhakar, K.; Jenkins, Matthew S.; Mangal, Shivy; Priya, S. Shanmuga

doi:10.1016/j.jobe.2019.100749

Cited by 30 publications

(10 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For this reason, other technologies such as desiccant cooling systems have been studied in other works and present an interesting alternative solution to DX systems [10,11]. The seasonal energy performance of these hybrid systems, based on cooling equipment and dehumidification equipment, has been investigated in previous work with simulation tools [12][13][14]. According to the desiccant capacity in different HVAC systems, the regeneration temperature is the most influential parameter on it [15,16].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Analysis Comparison of Three Air-Cooling Systems in Terms of Thermal Comfort, Air Quality and Energy Consumption for School Buildings in Mediterranean Climates

2021

View full text Add to dashboard Cite

Efficient air-cooling systems for hot climatic conditions, such as Southern Europe, are required in the context of nearly Zero Energy Buildings, nZEB. Innovative air-cooling systems such as regenerative indirect evaporative coolers, RIEC and desiccant regenerative indirect evaporative coolers, DRIEC, can be considered an interesting alternative to direct expansion air-cooling systems, DX. The main aim of the present work was to evaluate the seasonal performance of three air-cooling systems in terms of air quality, thermal comfort and energy consumption in a standard classroom. Several annual energy simulations were carried out to evaluate these indexes for four different climate zones in the Mediterranean area. The simulations were carried out with empirically validated models. The results showed that DRIEC and DX improved by 29.8% and 14.6% over RIEC regarding thermal comfort, for the warmest climatic conditions, Lampedusa and Seville. However, DX showed an energy consumption three and four times higher than DRIEC for these climatic conditions, respectively. RIEC provided the highest percentage of hours with favorable indoor air quality for all climate zones, between 46.3% and 67.5%. Therefore, the air-cooling systems DRIEC and RIEC have a significant potential to reduce energy consumption, achieving the user’s thermal comfort and improving indoor air quality.

show abstract

Section: Introductionmentioning

confidence: 99%

Seasonal Analysis Comparison of Three Air-Cooling Systems in Terms of Thermal Comfort, Air Quality and Energy Consumption for School Buildings in Mediterranean Climates

2021

View full text Add to dashboard Cite

show abstract

“…In the last years, many authors have used TRNSYS for numerical simulation of their plants [3]. For example, Dagdougui et al [4] have investigated the effect of the different parameters which may affect the performance of the flat plate solar collector to support decision makers in the definition of the optimal water flow and of the optimal collector flat area.…”

Section: Introductionmentioning

confidence: 99%

Transient Simulation of a Whey Drying Plant Assisted by Solar Energy

Buonomo¹,

Ceraso²,

Manca³

et al. 2021

TI-IJES

View full text Add to dashboard Cite

This paper presents a novel whey drying plant assisted by solar energy. In Italy, the whey is mostly used for feeding pigs and, regrettably, in the worst cases, it is discharged against the regulations to avoid significant disposal costs. Current technologies for the whey drying process are very polluting and expensive. Therefore, it is necessary to evolve the technologies for such processing to safeguard the environment and reduce operating costs. The plant is equipped by concentrated solar collectors which process the heat necessary to evaporate the whey in a vacuum dryer at a temperature equal to 65°C. In addition to the solar collectors, a boiler is present. The processed product is then deposited in a storage tank for its conservation. This thank is kept at a low temperature by an Ice Tank and an absorption refrigeration (H2O-BrLi) chiller. The warm water, which is heated by the field of the solar collectors, feeds the absorption chiller. A photovoltaic system electrically assists the pumps, thus making the entire system energy sustainable. The dynamic simulation of the processing of this drying plant is carried out by means of the TRNSYS software for the entire year. Solar fraction and efficiency of collectors are evaluated.

show abstract

“…From the results, it was shown that the proposed system had confirmed a significant decrease in process air humidity at dehumidifier exit while satisfying the comfort conditions in the conditioned room. Sudhakar et al 23 presented a review of modeling of a solar desiccant cooling system using a TRNSYS-MATLAB co-simulator. It was highlighted that building energy performance scenarios (BEPS) Tools (Energy Plus, TRNSYS, ESP—r, Mathcad) do not provide sub-models for proper control mechanism.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigations of solar-assisted hybrid desiccant evaporative cooling system for hot and humid climate

Hussain

Kalendar

Rafique

et al. 2020

Advances in Mechanical Engineering

View full text Add to dashboard Cite

This article presents numerical investigations of the solar-assisted hybrid desiccant evaporative cooling system integrated with standard air collectors for applications under the hot and humid climatic conditions of Kuwait city. The objective is to introduce the energy-efficient and carbon-free solar-assisted hybrid desiccant evaporative cooling system to alleviate the principal problems of electricity consumption and carbon emissions resulting from the use of the conventional vapor-compression cooling systems. In the normal building, during cooling load operation, the solar-assisted hybrid desiccant evaporative cooling system can cope with the cooling load particularly sensible by evaporative cooling and latent through desiccant dehumidification. The outcomes of this work indicate that solar-assisted hybrid desiccant evaporative cooling device integrated with air collectors is capable of providing average coefficient of performance of 0.85 and has the potential to provide cooling with energy saving when compared with conventional vapor-compression refrigeration systems. It was concluded that under the intense outdoor environmental conditions (ambient air at greater than 45°C and 60% relative humidity), the delivered supply air from the evaporative cooling was nearly at 27°C and 65% relative humidity. To solve this problem, the system was assisted with conventional cooling coil (evaporator of heat pump) to supply air at comfortable conditions in the conditioned space.

show abstract

Modelling of a solar desiccant cooling system using a TRNSYS-MATLAB co-simulator: A review

Cited by 30 publications

References 76 publications

Seasonal Analysis Comparison of Three Air-Cooling Systems in Terms of Thermal Comfort, Air Quality and Energy Consumption for School Buildings in Mediterranean Climates

Seasonal Analysis Comparison of Three Air-Cooling Systems in Terms of Thermal Comfort, Air Quality and Energy Consumption for School Buildings in Mediterranean Climates

Transient Simulation of a Whey Drying Plant Assisted by Solar Energy

Numerical investigations of solar-assisted hybrid desiccant evaporative cooling system for hot and humid climate

Contact Info

Product

Resources

About