Performance Comparison of Solar Assisted and Inverter Air-Conditioning Systems in Malaysia

Munaaim, C.; Al-Obaidi, Karam M.; Rahim, Magda A.

doi:10.22452/jdbe.sp2017no1.5

Cited by 6 publications

(8 citation statements)

References 13 publications

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“…Office building used solar-assisted AC [19], daylighting, and glazing [17], and for occupant behavior [24], [25] proved to use the same technique to reduce the energy consumption.…”

Section: Discussion On Saving Interest and Techniques Studies Accordi...mentioning

confidence: 99%

“…The results indicated that the coefficient of performance (COP) for the solar-assisted AC ranged from 2.98 to 4.45 on the three days it was measured, proving to be energy efficient. When compared to an inverter AC unit, solar assisted AC proved to have considerably lower values of power usage on account of the PV panel [19].…”

Section: Active Strategiesmentioning

confidence: 92%

“…For office building, experimental research applied energy-saving strategies [19], [25] and comfort assuring strategies [8], [17]. In the case of university, different saving strategies for comfort [15], energy [6], energy and water [9], [28], being University building the only type of building applying two saving strategies together.…”

Section: Water Savingsmentioning

confidence: 99%

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Low-consumption techniques in tropical climates for energy and water savings in buildings: A review on experimental studies

Chung-Camargo¹,

Bencid²,

Mora³

et al. 2022

I+D Tecnológico

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Different investigations have been developed over the years, and experimental research takes time to collect the information. Considering this, the objective of this research is to carry out a literature review of the strategies adopted by countries with tropical climates to achieve energy and water efficiency, as well as the comfort of the occupants to evaluate the performance of these techniques for each tropical climate type (i.e., tropical rainforest, tropical monsoon, tropical savanna, and subtropical). A methodology is presented using keywords and exclusion criteria for the best selection of articles. Time is saved by searching for information on low consumption strategies, types of buildings, and techniques implemented in each country. A summary of each experimental investigation is made. Results showed that it is possible to apply different techniques to the same type of building and have the savings of interest (water, energy, or comfort) without limiting it to a specific technique. Some tropical climates tend to use only one type of savings, such as comfort and others use energy and water. The experimental studies presented a relevant saving for passive design strategies in the following order: 1- 62.22% applying natural ventilation, water wall and stack flue, 2- 41% and 43% applying daylighting and glazing. 3- 35% applying wall insulation. For low consumption techniques: 1-14.31% and a 32.30% Remote Control extension device and 2-19% applying semitransparent photovoltaic glazing. This article is a resource that can be used by anyone interested in experimental studies in tropical climates.

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“…Office building used solar-assisted AC [19], daylighting, and glazing [17], and for occupant behavior [24], [25] proved to use the same technique to reduce the energy consumption.…”

Section: Discussion On Saving Interest and Techniques Studies Accordi...mentioning

confidence: 99%

Section: Active Strategiesmentioning

confidence: 92%

See 1 more Smart Citation

Low-consumption techniques in tropical climates for energy and water savings in buildings: A review on experimental studies

Chung-Camargo¹,

Bencid²,

Mora³

et al. 2022

I+D Tecnológico

View full text Add to dashboard Cite

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“…The results showed that the COP chiller ranged between 0.68 and 0.76 in 2018 and the electricity savings 41.1%. Munaaim M. et al [12] conducted a comparative study between solar assisted air conditioning and Inverter-type in the northern region of Malaysia, in Kedah where heating, ventilation, and air-conditioning (HVAC) systems consume approximately 55% in buildings. The results showed that the COP for solar air conditioning more than Inverter-type and the power consumption less than the Inverter-type.…”

Section: Introductionmentioning

confidence: 99%

Improving performance of direct expansion air conditioning systems while reducing electricity consumption through using hybrid energy

2021

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At the present time, operating hybrid air-conditioning systems that use solar energy to saving electrical energy while improving the performance has become necessary to protect the environment, reduce pollution and emissions caused by using fuels and gases. In Iraq, temperatures reach half the boiling point at summer, therefore the demand for air conditioning systems increases, air conditioning systems consume more than half of average electricity production which affects on reliability and stability of the electrical energy thus leads to a continuous power outage. So, the issue of using renewable energies becomes more attractive. Because of saving energy leads to ensuring the reliability of electricity and reduces the consumption of fuels and gases that pollute on the environment and negatively affect on the ozone layer. In the current research, the atmosphere of Baghdad city was used to collect solar thermal energy and convert it into thermal energy through an evacuated solar collector by water and combine it with a conventional air conditioner in the part that follows the compressor in order to reduce the electrical energy consumption on the compressor and increase coefficient of performance. Several tests were conducted on the proposed system to compare results with the conventional system and evaluate performance. The results showed that the coefficient of performance with the hybrid system became 8.97 more efficient instead of 4.27 compared to the conventional system, and the energy consumption decreased by 52%.

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“…From the latest product of portable air conditioning system design [16], [24]- [26], the heat waste is released to the surrounding in large amounts due to unorganized energy [27]- [32]. The thermal comfort zone standardized by The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) is around 22 to 24 o C for most buildings in Malaysia [33]- [35]. Heat waste from the Peltier module spread to the air and cause uncomfortable to users.…”

Section: Introductionmentioning

confidence: 99%

Personal air-conditioning system using evapolar as heat waste management

et al. 2021

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Air-conditioning system that uses compressor-based initiate more energy and affects bill rate. As a result, an application of the Peltier impact module, a portable air-conditioning system is introduced to compensate user convenience by lowering sensible and latent heat inside the office area. Thermoelectric Peltier module is a thermoelectric semiconductor that offers cooling and hot plate once the plate is supplied by electric. The result reduces the cost, power consumption, and give thermal comfort in a dedicated space. The advantage of the study is the ability to cost deduction due to low power consumption and green technology devices factor because without refrigerant that harms the environment. Redesign the product with Evapolar as heat waste management affect the performance and need to be validated. The development stage of this product is better compared to a previous product which offers small scale, light, and portable. This product focuses on the office room, which gives a good feeling to users. This product uses air to remove the heat waste and the result indicates Evapolar is fit enough in dissipating heat. Finally, the performance of this system developed demonstrated that it can attain thermal comfort level.

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Performance Comparison of Solar Assisted and Inverter Air-Conditioning Systems in Malaysia

Cited by 6 publications

References 13 publications

Low-consumption techniques in tropical climates for energy and water savings in buildings: A review on experimental studies

Low-consumption techniques in tropical climates for energy and water savings in buildings: A review on experimental studies

Improving performance of direct expansion air conditioning systems while reducing electricity consumption through using hybrid energy

Personal air-conditioning system using evapolar as heat waste management

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