An integrated thermoelectric heating-cooling system for air sterilization— a simulation study

Ji, Rencai; Pan, Teng; Peng, Guilong; Ma, Jianqiang; Yang, Nuo; Hao, Qing

doi:10.1016/j.mtphys.2021.100430

Cited by 10 publications

(4 citation statements)

References 51 publications

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“…A TE device typically consists of pairs of p-type and n-type TE pillars which are electrically connected in series and thermally connected in parallel [223]. The working principle of TE device is the conversion of electrical energy into temperature gradient based on Peltier effect; heat can be carried by charge carriers from one side to the other side when current passes through the TE device, resulting in a temperature gradient across the device [224]. TE devices are ideal for small-scale heating/cooling systems thanks to many attractive features such as dual mode, no noise, and high stability.…”

Section: Heaters and Coolersmentioning

confidence: 99%

Textile electronics for wearable applications

Pu,

Ma,

Luo

et al. 2023

Int. J. Extrem. Manuf.

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Textile electronics have become an indispensable part of wearable applications because of their large flexibility, light-weight, comfort and electronic functionality upon the merge of textiles and microelectronics. As a result, the fabrication of functional fibrous materials and the integration of textile electronic devices have attracted increasing interest in the wearable electronic community. Challenges are encountered in the development of textile electronics in a way that is electrically reliable and durable, without compromising on the deformability and comfort of a garment, including processing multiple materials with great mismatches in mechanical, thermal, and electrical properties and assembling various structures with the disparity in dimensional scales and surface roughness. Equal challenges lie in high-quality and cost-effective processes facilitated by high-level digital technology enabled design and manufacturing methods. This work reviews the manufacturing of textile-shaped electronics via the processing of functional fibrous materials from the perspective of hierarchical architectures, and discusses the heterogeneous integration of microelectronics into normal textiles upon the fabric circuit board and adapted electrical connections, broadly covering both conventional and advanced textile electronic production processes. We summarize the applications of textile electronics explored so far in sensors, actuators, thermal management, energy fields, and displays. Finally, the main conclusions and outlook are provided while the fabrication and application of textile electronics are emphasized.

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Section: Heaters and Coolersmentioning

confidence: 99%

Textile electronics for wearable applications

Pu,

Ma,

Luo

et al. 2023

Int. J. Extrem. Manuf.

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show abstract

“…Whether the wearer stands still or swings the arm, the skin covered by the cooler can be maintained at a comfortable temperature of 32 ± 0.5°C. Ji et al [ 35 ] used an integrated system combining TE heating and cooling to achieve the disinfection and purification of air. The whole system has a performance factor of up to 5.4 and is expected to play an important role in the medical field, such as the inactivation of SARS‐CoV‐2 virus.…”

Section: Introductionmentioning

confidence: 99%

Multifactor roadmap for designing low‐power‐consumed micro thermoelectric thermostats in a closed‐loop integrated 5G optical module

Yang,

Xing,

Wang

et al. 2024

Interdisciplinary Materials

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As the core components of fifth‐generation (5G) communication technology, optical modules should be consistently miniaturized in size while improving their level of integration. This inevitably leads to a dramatic spike in power consumption and a consequent increase in heat flow density when operating in a confined space. To ensure a successful start‐up and operation of 5G optical modules, active cooling and precise temperature control via the Peltier effect in confined space is essential yet challenging. In this work, p‐type Bi0.5Sb1.5Te3 and n‐type Bi2Te2.7Se0.3 bulk thermoelectric (TE) materials are used, and a micro thermoelectric thermostat (micro‐TET) (device size, 2 × 9.3 × 1.1 mm3; leg size, 0.4 × 0.4 × 0.5 mm3; number of legs, 44) is successfully integrated into a 5G optical module with Quad Small Form Pluggable 28 interface. As a result, the internal temperature of this kind of optical module is always maintained at 45.7°C and the optical power is up to 7.4 dBm. Furthermore, a multifactor design roadmap is created based on a 3D numerical model using the ANSYS finite element method, taking into account the number of legs (N), leg width (W), leg length (L), filling atmosphere, electric contact resistance (Rec), thermal contact resistance (Rtc), ambient temperature (Ta), and the heat generated by the laser source (QL). It facilitates the integrated fabrication of micro‐TET, and shows the way to enhance packaging and performance under different operating conditions. According to the roadmap, the micro‐TET (2 × 9.3 × 1 mm3, W = 0.3 mm, L = 0.4 mm, N = 68 legs) is fabricated and consumes only 0.89 W in cooling mode (QL = 0.7 W, Ta = 80°C) and 0.36 W in heating mode (Ta = 0°C) to maintain the laser temperature of 50°C. This research will hopefully be applied to other microprocessors for precise temperature control and integrated manufacturing.

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“…In recent years, experiments and numerical simulations have been conducted to prove the practicality of TEC application in many domains such as radiation cooling, medium temperature disinfection, and clothing drying [6][7][8]. By analyzing the relationship of the TEC's performance efficiency and working energy consumption, Yuan et al [9] applied the TEC to the small-insulated vans and searched for the ideal working current.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Human Thermal Comfort in Bus Based on Thermoelectric Cooling Climate-Controlled Seats

Liang

Yang

et al. 2023

International Journal of Energy Research

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In order to improve the thermal comfort of passengers, the thermoelectric cooling climate-controlled seats were set in the passenger cabin. In this study, thermoelectric cooler units’ cooling performance is studied by experiment method. The heat and flow field of the bus cabin are analyzed in four different cases (air conditioner open/closed, thermoelectric cooler open/closed) using computational fluid dynamics method. Moreover, an experiment has been conducted to verify the accuracy of the simulation method. The results show as below: the ideal working current of the thermoelectric cooler is in range of 3-4 A and the coefficient of performance value range 0.5-0.7. The climate-controlled seats can enhance the local airflow perturbation, which can increase the passengers’ overall thermal comfort by 18.96%. The thermal comfort of passengers closer to air conditioner inlet is better than passengers in other areas, and the area with the best thermal comfort for passengers are the front and rear seats of the bus cabin. As expected, the thermoelectric cooling climate-controlled seat can improve the thermal comfort of passengers, and has a broad application prospect.

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An integrated thermoelectric heating-cooling system for air sterilization— a simulation study

Cited by 10 publications

References 51 publications

Textile electronics for wearable applications

Textile electronics for wearable applications

Multifactor roadmap for designing low‐power‐consumed micro thermoelectric thermostats in a closed‐loop integrated 5G optical module

Analysis of Human Thermal Comfort in Bus Based on Thermoelectric Cooling Climate-Controlled Seats

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