A review of high temperature cooling systems in tropical buildings

Saber, Esmail M.; Tham, Kwok Wai; Leibundgut, Hansjürg

doi:10.1016/j.buildenv.2015.11.029

Cited by 75 publications

(30 citation statements)

References 25 publications

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“…to operate at a higher efficiency, which leads to the significant reduction in primary energy consumption. Higher temperature cooling facilitates the use of a higher chilled water supply system or low-lift chiller system, in which the evaporator temperature can be higher than that of the conventional chiller, reducing the compressor work and the energy consumption [52]. Since the RHC system can operate under the condition of the water temperature being close to the room temperature, it is feasible to combine the RHC system with renewable energy sources such as geothermal or solar energy [53e56].…”

Section: High Efficiency For Heat Sourcesmentioning

confidence: 99%

“…This integration can reduce the indoor humidity level and allow a higher cooling capacity of the radiant system [23]. Considering that condensation often occurs during the start-up period, it is also recommended to apply an earlier start of the ventilation system and gradual start of the radiant cooling system [2,37,140,141]. The air dehumidification and ventilation system should be operated at least 1 h earlier than the operation of the ceiling panels.…”

Section: )mentioning

confidence: 99%

See 1 more Smart Citation

Ten questions about radiant heating and cooling systems

Rhee

Olesen²,

Kim

2017

Building and Environment

215

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Section: High Efficiency For Heat Sourcesmentioning

confidence: 99%

Section: )mentioning

confidence: 99%

Ten questions about radiant heating and cooling systems

Rhee

Olesen²,

Kim

2017

Building and Environment

215

View full text Add to dashboard Cite

“…Plasma is defined as the fourth state of the matter, which is highly reactive due to the free electrons, ions, and neutral particles in the gas (Saber et al, 2016). To generate a plasma, a direct current (DC) discharge, alternating current (AC) discharge, radio frequency (RF) induction discharge, or microwave discharge can be used.…”

Section: Plasma Gasificationmentioning

confidence: 99%

A critical review on biomass gasification, co-gasification, and their environmental assessments

2016

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Please cite this article as: Farzad S., Mandegari M.A., Görgens J.F. A critical review on biomass gasification, co-gasification, and their environmental assessments. Biofuel Research Journal 12 (2016) HIGHLIGHTSConventional and new gasification technologies were compared. Studies dealing with co-gasification of different feedstocks were summarized. Life cycle assessments of biomass gasification and co-gasification were studied. Gasification is an efficient process to obtain valuable products from biomass with several potential applications, which has received increasing attention over the last decades. Further development of gasification technology requires innovative and economical gasification methods with high efficiencies. Various conventional mechanisms of biomass gasification as well as new technologies are discussed in this paper. Furthermore, co-gasification of biomass and coal as an efficient method to protect the environment by reduction of greenhouse gas (GHG) emissions has been comparatively discussed. In fact, the increasing attention to renewable resources is driven by the climate change due to GHG emissions caused by the widespread utilization of conventional fossil fuels, while biomass gasification is considered as a potentially sustainable and environmentally-friendly technology. Nevertheless, social and environmental aspects should also be taken into account when designing such facilities, to guarantee the sustainable use of biomass. This paper also reviews the life cycle assessment (LCA) studies conducted on biomass gasification, considering different technologies and various feedstocks. ARTICLE INFO ABSTRACT

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“…In order to assess their thermal performance on actual operating conditions, a series of simulations were performed and their results were observed. The result: a cooling potential of up to 12˝C [17] and a decrease in temperature for buildings on tropical climates [18] were observed. For a better thermal comfort in traditional houses built in arid and semi-arid climate conditions in the northern part of Mexico, air flow distribution has been analyzed through the construction of wind towers with the purpose of vacuuming air currents and forcing them to flow inside the building for a greater thermal comfort [19].…”

Section: Introductionmentioning

confidence: 99%

Thermal Storage Systems Assessment for Energy Sustainability in Housing Units

et al. 2016

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Abstract:In order to achieve greater enhancements in energy sustainability for housing, the function and efficiency of two different passive cooling systems were studied: encapsulated water in recycled bottles of Polyethylene terephthalate (PET) and polystyrene plates, in comparison with standard concrete slab systems, which are customarily used in housing. Experiments were placed over a tile surface, in which temperature changes were monitored for a period of 20 days from 08:00 to 20:00. The efficiency of passive thermal storage systems was endorsed through statistical analysis using the "SPSS" software. This resulted in a 17% energy saving, thus promoting energy sustainability in housing units, which reduces the use of electrical appliances required to stabilize conditions to achieve optimum thermal comfort for the human body inside a house, therefore, reducing electrical power consumption, CO 2 emissions to the atmosphere and generating savings. Due to the complexity of a system with temperature changes, a fractal analysis was performed for each experimental system, using the "Benoit" software (V.1.3 with self-compatible tools of rescaled range (R/S) and a wavelets method), showing that the thermal fluctuations on the tiles with the thermal storage system adapt to the rescaled range analysis and the regular tiles adapt to the wavelets method.

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A review of high temperature cooling systems in tropical buildings

Cited by 75 publications

References 25 publications

Ten questions about radiant heating and cooling systems

Ten questions about radiant heating and cooling systems

A critical review on biomass gasification, co-gasification, and their environmental assessments

Thermal Storage Systems Assessment for Energy Sustainability in Housing Units

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