Temperature optimization of an electric heater by emissivity variation of heating elements

Hemmer, Cédric; Polidori, Guillaume; Popa, Cătălin

doi:10.1016/j.csite.2014.10.001

Cited by 14 publications

(5 citation statements)

References 15 publications

(15 reference statements)

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“…A simple correlation presented to predict the gross thermal efficiency as a function of percent excess air and stack gas temperature. C.Hemmer, G.Polidori, and C.Popa, [3] noted an industrial application concerning the way to optimize the surface temperature of the commercial electrical heater. The aim of this paper is to reduce the temperature on accessible surfaces and electrical heaters.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

tfeme journal

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The novel segment electric in-line process electric heaters heater designed to heat various fluids analyzed in this work. The complete electric heater consists of several hollow cylindrical segment heating elements. The segment heating elements can vary positioned in relation to the fluid flow. The total power of the segment process heater is equal to the sum of the power of all heating segments and is 0.756kW. Volumetric air flow variations in the amount of 0.001m 3 s -1 , 0.002m 3 s -1 and 0.003m 3 s -1 . The heating elements are positioned in the three combinations in relation to the direction of the fluid flow. The comparative numeric analysis, conducted for this work, has the goal to determine the influence of the arrangement of segment heaters on the overall energy efficiency of the segment electric heater. In order to verify the results of the numeric simulations carried out and experimental investigations of the segment electric heater.

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Section: Introductionmentioning

confidence: 99%

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2022

tfeme journal

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“…For this application a numerical study is done of an electric heater with convection and radiation in a heated room. Finally all the heating elements that make up electric heating device must have low emissivity [1].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Different Three Types of Room Heater for Thermal Effect

Kumar¹

2022

IJERMCE

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he present work experimentally carried the study of comparative analysis of different type of room heater for space heating and thermal comfort. In cold climate the human being is required thermal comfort. In rural areas, humans are using the domestic heater, blower and other different types of heater for thermal comfort. Although sometimes used of these types of heater results oxygen level is down and so it is harmful to health. A comparative analysis was done in this work to reduce these problems. In these experiments, three different types of heater were used, and in the present work suggested the best type of heater for room heating in cold climate. A room is heated with a volume of 3 x 2.4 x 3.65 m3 for thermal comfort, the temperature and humidity is measured and calculates the total temperature rise and humidity drop of the room. The comfort and combine study of performance of blower, rod heater and circular heater was done in the Ramanujan hostel room at Kamla Nehru Institute of Technology, Sultanpur during night. The study was confined to 9 PM to 4 AM from January 2019 to March 2019. The experimental study was done in night so solar radiation by sun is negligible and the reading is effectively observed. Therefore, the three cases were carried experimentally for room heating in cold climate and a comparative analysis is done of these three cases (blower, circular heater and rod heater).

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“…A few approaches to increasing the uniformity of electrical heating elements have been undertaken. These include changing the emissivity of the element [23], altering the geometry or thickness of the element [24], and the incorporation of large thermal blocks to store or distribute the thermal energy [25]. The approach taken by this research is an additional manufacturing process to increase the uniformity of the temperature profile by using an automated laser ablation system with an integrated infrared imaging camera.…”

Section: Introductionmentioning

confidence: 99%

Automated Laser Ablation of Inhomogeneous Metal Oxide Films to Manufacture Uniform Surface Temperature Profile Electrical Heating Elements

Ingham

Lewis

Cheneler

2019

JMMP

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This paper presents automated laser ablation strategies to improve the temperature distribution across the surface of inhomogeneous Ni-Fe-Cr-NiO electrical heating elements during joule heating. A number of iterative closed-loop laser control algorithms have been developed and analyzed in order to assess their impact on the efficacy of the heating element, in terms of homogeneous temperature control, and on the implications for automated fabrication of inhomogeneous metal oxide films. Analysis shows that the use of the leading method, i.e., use of a temperature-dependent variable-power approach with memory of previous processes, showed a 68% reduction in the standard deviation of the temperature distribution of the heating element and a greater uniformity of temperature profile as compared to existing manual methods of processing.

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Temperature optimization of an electric heater by emissivity variation of heating elements

Cited by 14 publications

References 15 publications

Untitled

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Comparative Analysis of Different Three Types of Room Heater for Thermal Effect

Automated Laser Ablation of Inhomogeneous Metal Oxide Films to Manufacture Uniform Surface Temperature Profile Electrical Heating Elements

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