Results 1 to 10 of about 245,134 (212)

Heating Performance Characteristics of High-Voltage PTC Heater for an Electric Vehicle

Energies, 2017
High-voltage positive temperature coefficient (PTC) heaters have a high heating capacity and are fast acting; thus, they function as the actual main heating equipment in electric cars, and considerable research is devoted to improving their heating ...
Myeong Hyeon Park, Sung Chul Kim
doaj   +3 more sources

Toward Robust Electrical Heating Textiles: Factors Influencing Electrical Heating Performance and Durability [PDF]

ACS Omega
Babak Abdi, Ali R. Tehrani-Bagha
doaj   +2 more sources

Heating performance test on double-channel heater of single-circuit vortex tube

You-qi chuyun, 2020
Single-Circuit Vortex Tube (SCVT) heater possesses high performance on safety and energy saving in terms of online heating of natural gas pipeline pressure regulating system.
Kai WANG, Bingliang ZHAO, Xin OUYANG, Feng YAN, Yubin WANG, Haifeng WANG   +5 more
doaj   +1 more source

Heating Performance of Cementitious Composites with Carbon-Based Nanomaterials

Crystals, 2022
Active research has been conducted in recent years on heating construction materials using nanotechnology to solve the problem of black ice, which is often the cause of frequent traffic accidents during winter.
Heeyoung Lee, Sohyeon Park, Donghwi Kim, Wonseok Chung   +3 more
doaj   +1 more source

Study on Heating Performance and Flexural Strength Properties of Electrically Conductive Mortar

Applied Sciences, 2023
The use of electrically conductive mortar (ECM) is a relatively new construction material technology developed to obtain high conductivity and mechanical strength.
Dong-Ju Seo, You-Jae Lee, Beom-Gyun Choi, Jong-Gun Park, Gwang-Hee Heo   +4 more
doaj   +1 more source

Properties of Surface Heating Textile for Functional Warm Clothing Based on a Composite Heating Element with a Positive Temperature Coefficient

Nanomaterials, 2021
A high-stretch positive temperature coefficient (PTC) surface heating textile (PTC-SHT) was fabricated using a composite of PTC powder and multiwall carbon nanotubes (MWCNTs). The PTC-SHT (heating area = 100 × 100 mm2) was produced by screen-printing the
Han Na Choi, Seung Hyun Jee, Jaehwan Ko, Dong Joo Kim, Sun Hee Kim   +4 more
doaj   +1 more source

Effect of Coarse Aggregate and Multi-Wall Carbon Nanotubes on Heat Generation of Concrete

Buildings, 2023
Many researchers are developing heating construction materials to remove black ice from roads, addressing the scientific challenges associated with this issue.
Hyojeong Yun, Donghwi Kim, Sunho Kang, Wonseok Chung   +3 more
doaj   +1 more source

An Experimental Study on External Ventilation to the Heating Performance of Household Air Source Heat Pump

Frontiers in Energy Research, 2021
The external ventilation conditions have a great influence on the heating performance of the air source heat pump (ASHP) systems. The outdoor units of residential household air source heat pumps are often installed in narrow spaces such as balconies. The
Hang Zou, Zhanqiang Liu, Enshen Long
doaj   +1 more source

Heating Performance Enhancement of High Capacity PTC Heater with Modified Louver Fin for Electric Vehicles

Energies, 2019
Electric vehicles use positive temperature coefficient (PTC) heaters and heat pumps to warm the vehicle cabin. High-capacity PTC heaters are needed because heat pump performance decreases sharply in the winter months due to low outdoor temperatures.
Myeong Hyeon Park, Sung Chul Kim
doaj   +1 more source

Experimental Investigation on a Vapor Injection Heat Pump System with a Single-Stage Compressor

Energies, 2020
In this study, a heat pump of 10 kW with vapor injection using refrigerant of R410A was developed. A vapor injection pipe connecting a gas–liquid separator at the outlet of the main expansion valve and the suction of a single-stage rotary compressor was ...
Hongzhi Liu, Katsunori Nagano, Takao Katsura, Yue Han   +3 more
doaj   +1 more source