Potential of Utilizing Solar Chimney as an Energy Efficiency Measure in Malaysian Hospitals

Samsudin, Sheikh Saiful Azam; Shaari, Abdul Muin; Abdullah, Kamil; Batcha, Mohd Faizal Mohideen

doi:10.37934/cfdl.12.4.9099

Cited by 6 publications

(2 citation statements)

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“…Thermal desalination technique has some advantages over other seawater desalination processes, such as greater reliability, longer life, and less need for raw water [13]. There are many techniques that can be applied thermally such as using a solar cell to heat the heating coil [14,15]. However, the solar cell is not efficient enough to generate high power to operate the heater due to the surface area limitation [16].…”

Section: Introductionmentioning

confidence: 99%

Self-Desalination Seawater Jig Based on Solar Thermal Energy

Wahid

Fahmi

Puteh

et al. 2022

ARFMTS

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In this study, a new design of self-desalination seawater device by applying solar thermal energy has been proposed and characterized. Investigations were conducted to determine whether the fabricated device able desalinate saltwater efficiently. A custom-designed reflector with fixed and adjustable angle configurations was also included and both will be evaluated in terms of performance. The temperature, salinity, and conductivity of the saltwater during the desalination process were measured and compared from 9 am to 3 pm. The temperature averagely increases 20.5°C for 6 hours exposure. A device with an adjustable reflector able to confine the highest temperature which is up to 58°C. It was also shown that the heat energy grows proportionally with increasing temperature. A device with reflector shown able to confine the maximum heat energy which is 131.51 kJ which is 51.75% higher than without reflector. As a result, the latent heat required to convert salt water to steam decreased from 3.591 kJ/kg to 3.538 kJ/kg. In this regard, the fabricated device able to reduce the seawater salinity from 7651ppm to 123ppm, which a substantial 98 percent reduction. This result indicates that the proposed device with adjustable reflector can desalinate and convert saline water into safe drinking water.

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Section: Introductionmentioning

confidence: 99%

Self-Desalination Seawater Jig Based on Solar Thermal Energy

Wahid

Fahmi

Puteh

et al. 2022

ARFMTS

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“…The system includes air-conditioning system which is responsible to ensure operational temperature and humidity of a plant factory remain conducive for the plant growth. A good air-conditioning system will also provide good air circulation inside a plant factory [11,12]. On top of the air conditioning system, a plant factory is also equipped with lighting system, air conditioning system, plant watering system and fertilizing system are fully automatic [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Energy Profiling of a Plant Factory and Energy Conservation Opportunities

Shaari

Razuan

Taweekun

et al. 2021

ARFMTS

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Precision farming is one of the important areas to ensure food security by coping with climate change and increase farmer’s productivity. Plant factory is one of the aspects of precision farming and recently sought attention among modern farmers in Malaysia. While ensuring continuous supply of crops throughout the year with increased quality and yield, plant factories consume large amount of energy to maintain their micro-climatic condition. This paper presents the energy consumption profiling of a plant factory, owned by Malaysian Agricultural Research and Development Institute (MARDI) in Serdang, Malaysia. This study is important to establish the status quo of consumption pattern of the plant factory towards reducing the energy consumption. Hence, energy audit was carried at the plant factory for duration of 2 weeks. From the audit it was found that the energy was distributed as follows: Air conditioning system - 51%, LED - 36%, pump - 3% and others - 10%. Finally, suitable energy conservation measures were proposed to reduce the energy intensity of the plant factory.

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Simulation of natural ventilation of different configurations of a room equipped with a solar chimney under the city of Ouarzazate (Morocco) climatic conditions

2022

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Natural ventilation is considered as an effective way to improve ventilation and thermal comfort and reduce energy consumption in residential buildings. In this sense, natural ventilation is done by a solar chimney. It is used to increase the air flow through the room by converting thermal energy into kinetic energy. In this work, we intend to present the results of a three dimensional numerical simulation by ANSYS software of natural ventilation through a room equipped with a solar chimney in semiarid climatic conditions of Ouarzazate (Morocco). The chimney is modelled by a rectangular channel with two South-East oriented glass faces. The main objective is to investigate effects of room dimensions for a solar chimney with of fixed dimensions. We also investigate effects of air velocity, turbulence of kinetic energy and air-flow rate in each area of room and solar chimney and determine optimal dimensions of solar chimney for each room size.

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Potential of Utilizing Solar Chimney as an Energy Efficiency Measure in Malaysian Hospitals

Cited by 6 publications

References 0 publications

Self-Desalination Seawater Jig Based on Solar Thermal Energy

Self-Desalination Seawater Jig Based on Solar Thermal Energy

Energy Profiling of a Plant Factory and Energy Conservation Opportunities

Simulation of natural ventilation of different configurations of a room equipped with a solar chimney under the city of Ouarzazate (Morocco) climatic conditions

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