Numerical Analysis of Specific Absorption Rate and Heat Transfer in the Human Body Exposed to Leakage Electromagnetic Field at 915 MHz and 2450 MHz

Wessapan, Teerapot; Srisawatdhisukul, Siramate; Rattanadecho, Phadungsak

doi:10.1115/1.4003115

Cited by 52 publications

(35 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…10,246 Microwave ablation is another application of microwaves which could be used for the treatment of liver cancer. [247][248][249][250] Microwave energy is emitted by the Microwave Coaxial Antenna (MCA) which generates heat in the local cancerous tissue without affecting the surrounding tissue. 247 Wessapan et al 248 carried out numerical studies on the temperature distribution and specific absorption rate of microwaves in human body which was exposed to different frequencies.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

“…[247][248][249][250] Microwave energy is emitted by the Microwave Coaxial Antenna (MCA) which generates heat in the local cancerous tissue without affecting the surrounding tissue. 247 Wessapan et al 248 carried out numerical studies on the temperature distribution and specific absorption rate of microwaves in human body which was exposed to different frequencies. It was found that at 2.45 GHz, the maximum temperature was found at the skin whereas at 915 MHz, the maximum temperature was found at the fat.…”

Section: Biomedical Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Microwave material processing—a review

2011

View full text Add to dashboard Cite

Microwave heating is caused by the ability of the materials to absorb microwave energy and convert it to heat. This article represents a review on fundamentals of microwave heating and their interaction with materials for various applications in a comprehensive manner. Experimental studies of single, multimode, and variable frequency microwave processing were reviewed along with their applications. Modeling of microwave heating based on Lambert's law and Maxwell's electromagnetic field equations have also been reviewed along with their applications. Modeling approaches were used to predict the effect of resonances on microwave power absorption, the role of supports for microwave heating, and to determine the nonuniformity on heating rates. Various industrial applications on thermal processing have been reviewed. There is tremendous scope for theoretical and experimental studies on the athermal effects of microwaves. Some of the unresolved problems are identified and directions for further research are also suggested.

show abstract

Section: Biomedical Applicationsmentioning

confidence: 99%

Section: Biomedical Applicationsmentioning

confidence: 99%

Microwave material processing—a review

2011

View full text Add to dashboard Cite

show abstract

“…Our research group has numerically investigated the temperature increase in human tissue subjected to EM fields in regard to many problems [37][38][39][40][41][42][43][44][45]. Wessapan et al [38,39] utilized a 2D finite-element method (FEM) to determine the specific absorption rate (SAR) and temperature increase in the human body exposed to leaking EM waves.…”

Section: Introductionmentioning

confidence: 99%

“…Wessapan et al [38,39] utilized a 2D finite-element method (FEM) to determine the specific absorption rate (SAR) and temperature increase in the human body exposed to leaking EM waves. Wessapan et al [40,41] developed a 3D model of the human head in order to investigate the SAR and temperature distributions in the human head during exposure to cellphone radiation.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Analysis of the Human Eye During Exposure to Sauna Therapy

Wessapan

Rattanadecho

2015

Numerical Heat Transfer, Part A: Applications

Self Cite

View full text Add to dashboard Cite

Among the reported health benefits of a sauna session are weight loss, detoxification of the body, and improved blood circulation. Side effects of sauna therapy, both beneficial and detrimental, also exist. It is well known that the human eye is one of the most sensitive parts of the entire human body when exposed to high ambient temperature and humidity levels such as in sauna therapy. This sauna heat interacts with the human eye and may lead to a variety of ocular effects due to radiation emitted by the heater and high ambient temperature. However, the resulting thermophysiologic response of the human eye to various exposure conditions during sauna therapy is not well understood. Therefore, it is of interest to investigate the potential ocular effects that may occur during sauna exposure. This study presents a numerical analysis of heat transfer in a heterogeneous model of a human eye exposed to sauna. The heat transfer model is developed based on porous media theories. In the heterogeneous human eye model, the effects of room air temperature and heater temperature on the intraocular temperature increase are systematically investigated. The study intends to focus attention on the different heat transfer characteristics between conventional sauna (mainly convection) and infrared sauna (mainly radiation). The results show that at the same room air temperature, the circulatory patterns within the anterior chamber of the eye in regard to infrared sauna are more rapid than those for the conventional sauna. Moreover, eye temperature is also higher in the infrared sauna than in the conventional sauna. The maximum temperatures of the eye exposed to conventional and infrared saunas at room air temperature of 80 C are 48.25 C and 52.90 C, respectively. From the values obtained, a guideline can be recommended to indicate the limitations in regard to temperature increase in the human eye due to sauna therapy.

show abstract

“…Due to the expanded utilization of electromagnetic (EM) wave in various fields, one of the most challenging problems is EM interference and pollution, which could cause disturbance on the devices and systems and even threaten the health of animals and human beings [1][2][3][4] . In response to the need for protecting human beings from EM wave irradiation and preventing the military equipment from being detected by radar waves, the development of effective EM wave absorption materials have attracted a world of attention.…”

Section: Introductionmentioning

confidence: 99%