Thermal tests of large recirculation cooling installations for nuclear power plants

Balunov, B. F.; Lychakov, V. D.; Ильин, В. А.; Shcheglov, A. A.; Maslov, O. P.; Rasskazova, N. A.; Рахимов, Р З; Boyarov, R. A.

doi:10.1134/s0040601517110015

Cited by 2 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the ECO design adopts high frequency welding with heat extraction close to an acid dew point, the performance of this design is much higher than conventional design. An innovative ECO is designed according to the conditions of RTO furnace operation and effect of the thermal expansion and contraction . Therefore, ECO features with anti‐corrosion of thermally fins and heat extraction close to acid dew‐point temperature.…”

Section: Features Of Innovative Rto Waste Heat Recovery Systemmentioning

confidence: 99%

See 1 more Smart Citation

Developing low temperature recovery technology of waste heat in automobile factory

Chang

Cheng

Wang

2018

Energy Science & Engineering

View full text Add to dashboard Cite

The painting operation is an important process in automobile manufacturing process, which not only consumes considerable amount of energy but also affects the environment through the flue gases emitted during the process. A case study in Taiwan was conducted on developing an innovative low‐temperature recovery technology of waste heat automobile industry. The high frequency welding segment technology was built on the site to extract heat close to an acid dew point. When the ambient temperature is changed substantially, the fins and heat pipes are solidly connected to maintain the performance of the heat exchanger. Moreover, the hot water obtained from the waste heat recovery is delivered to pretreatment heating tank the painting shop directly. By improving the energy efficiency on heat transfer, the proposed recovery technology of waste heat in automobile factory has been justified with having the performance 69% higher than conventional design. In order to reduce the effect of CO2 emission on the environmental impact, the temperature at the end of the flue gases is further decreased from 160°C to 110°C. The cost benefit analysis reveals that the payback year is 2.8 years. The innovative heat recovery technology contributes to energy conservation and environmental sustainability.

show abstract

Section: Features Of Innovative Rto Waste Heat Recovery Systemmentioning

confidence: 99%

“…An innovative ECO is designed according to the conditions of RTO furnace operation and effect of the thermal expansion and contraction. 15 Therefore, ECO features with anti-corrosion of thermally fins and heat extraction close to acid dew-point temperature.…”

Section: Design Of High Frequency Economizermentioning

confidence: 99%

Developing low temperature recovery technology of waste heat in automobile factory

Chang

Cheng

Wang

2018

Energy Science & Engineering

View full text Add to dashboard Cite

show abstract

Results of Thermal Tests of Recirculation Cooling Installations

Balunov¹,

Lychakov²,

Egorov

et al. 2019

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The article presents the results from thermal tests of some recirculation installations for cooling air in nuclear power plant premises, including the volume under the containment. The cooling effect in such installations is produced by pumping water through its heat-transfer tubes. Air from the cooled room is blown by a fan through a bundle of transversely finned tubes and is removed to the same room after having been cooled. The finning of tubes used in the tested installations was made of Grade 08Kh18N10T and Grade 08Kh18N10 stainless steels or Grade AD1 aluminum. Steel fins were attached to the tube over their entire length by means of high-frequency welding. Aluminum fins were extruded on a lathe from the external tube sheath into which a steel tube had preliminarily been placed. Although the fin extrusion operation was accompanied by pressing the sheath inner part to the steel tube, tight contact between them over the entire surface was not fully achieved. In view of this, the air gap’s thermal resistance coefficient was introduced in calculating the heat transfer between the heat-transferring media. The air gap average thickness was determined from the test results taking into account the gap variation with temperature due to different linear expansion coefficients of steel and aluminum. These tests were mainly aimed at checking if the obtained thermal characteristics were consistent with the values calculated according to the standard recommendations with introduction, if necessary, of modifications to those recommendations.

show abstract

Thermal tests of large recirculation cooling installations for nuclear power plants

Cited by 2 publications

References 1 publication

Developing low temperature recovery technology of waste heat in automobile factory

Developing low temperature recovery technology of waste heat in automobile factory

Results of Thermal Tests of Recirculation Cooling Installations

Contact Info

Product

Resources

About