Numerical simulation of solar chimney integrated with exhaust of thermal power plant

Al-Kayiem, Hussain H.; Yin, Ke; Sing, C. Yee

doi:10.2495/ht120061

Cited by 11 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AlMustafa et al [2] reported review of the enhancement of the solar power updraft systems. Al-Kayiem [3] and Al-Kayiem et al [4] presented experimental and numerical results of modified SCPP integrated with external auxiliary thermal source. They concluded that considerable enhancement was achieved in the performance of the integrated system and the SCPP became able to produce electricity all the day and night due to the continuous heat supply to the absorber.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study on ground material absorptivity for solar chimney power applications

Al-Azawie¹,

Hassan²,

Zammeri³

2014

Energy and Sustainability V

View full text Add to dashboard Cite

A solar chimney power plant utilizes the ground as its energy conversion medium from solar radiation to kinetic energy in the adjacent air stream. In this work, the conversion capability of six different ground materials, that are potentially available in Malaysia, were studied experimentally and numerically. An experimental setup was constructed to acquire measured data. A numerical model was constructed in the FLUENT software environment to model and simulate the energy conversion process. The selected materials were ceramic, black stone, sawdust, dark green painted wood (DGPW), sand and pebble. The simulation results showed good consistency with the experimental results in terms of the air stream velocity and the energy conversion efficiency. The ceramic and black stone have shown better performance upon the other materials. In particular, the ceramic medium has shown another advantage to its solar radiation absorptivity -its heat storage capability. However, due to its availability, black stone is recommended for use as the absorbing material in the solar chimney in Malaysia and regional countries.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study on ground material absorptivity for solar chimney power applications

Al-Azawie¹,

Hassan²,

Zammeri³

2014

Energy and Sustainability V

View full text Add to dashboard Cite

show abstract

“…Elementary experimental measurements on an inclined solar chimney model integrated with flue gas were reported by Al-Kayiem et al [26]. Then, the same system was simulated and the simulation results were validated through comparison with the measurement results as reported by Al-Kayiem et al [27]. The experimental and simulation boundary conditions are shown in Fig.…”

Section: Hybrid Solar-flue Chimney Power Plantmentioning

confidence: 97%

Hybrid techniques to enhance solar thermal: the way forward

Al-Kayiem¹

2015

Int. J. EQ

View full text Add to dashboard Cite

Solar is one of the pillars for clean and environment friendly energy. The drawback of the solar is the interruption during the night and cloudy and rainy weather. This paper presents the author's experience on enhancing the solar thermal systems by integration techniques with either other energy resources or thermal energy storages (TES). The present works includes the hybrid solar drying through integration with thermal backup unit. The experimental results on hybrid drying showed enhancement of 64.1% for Empty Fruit Bunch, and 61.1% for chili pepper, compared with open solar mode drying. Secondly, solar water heating was proved to be sufficient to supply hot water during the day and night time by integration with TES. The experimented system was able to maintain the water hot up to the next morning. On large scale and industrial application, experimental results on modified inclined solar chimney had shown enhancement via integration with wasted flue gas. By this technique, the system was developed to operate 24 hours a day. The efficiency was enhanced by 100% in case of hybrid operation compared with solar mode operation. The research results are demonstrating that the integration techniques can contribute effectively in enhancing the performance of the thermal solar systems.

show abstract

“…Chikere et al [4] reviewed the enhancement of the SCPP and suggested a modified SCPP integrated with flue gas as a supplementary source of heat. Al-Kayiem et al [5] and Al-Kayiem [6] presented the experimental and numerical results of a modified SCPP integrated with an external auxiliary thermal source. They concluded that considerable enhancement was achieved in the performance of the integrated system, and the SCPP was able to produce electricity during daytime and night time because of the continuous heat supply to the absorber.…”

Section: Introductionmentioning

confidence: 99%