Energy saving potential of a simple control strategy for heat exchanger network operation under fouling conditions

Trafczyński, Marian; Markowski, Mariusz; Urbaniec, Krzysztof

doi:10.1016/j.rser.2019.05.046

Cited by 21 publications

(8 citation statements)

References 30 publications

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“…Figure 6 presents the temperature and flow changes of primary pipe network after energy-saving reconstruction. When the outdoor temperature remained the same, the temperature of the water supplied by the heat source changed in the range of [6,12], and that of water return pipeline changed within [5,10]. Therefore, the water supply and return of the primary pipe network are controlled with a high precision.…”

Section: Experiments and Results Analysismentioning

confidence: 99%

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Research and Evaluation of Energy-Saving Reconstruction of Intelligent Community Heating System Based on the Internet of Things

Sun¹,

Chen²,

Pan³

et al. 2021

IJHT

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At this critical junction of industrialization, China is facing an increasingly prominent imbalance between energy supply and demand. It is of great social significance to study the energy-saving of buildings that consume a huge amount of energy. For most heating systems, energy waste mainly arises from inefficient operations of boilers, low efficiency of pipe transmission, and poor quality of heat supply. This paper researches and evaluates the energy-saving reconstruction of intelligent community heating (ICH) system based on the Internet of things (IoT). Firstly, the energy-saving reconstruction of the ICH system was analyzed, and a hydraulic regime model was derived from the simplified model of the water supply and return pipe networks. Then, the system pipe network was investigated in three aspects, namely, node flow balance, pipeline pressure drop balance, and loop pressure drop balance. On this basis, the authors presented the balance equation and finalized the hydraulic regime model of the system. After that, the energy consumption of the system was evaluated before and after the reconstruction, and the energy-saving benefit was predicted. The effectiveness of the proposed method was proved through experiments.

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Section: Experiments and Results Analysismentioning

confidence: 99%

“…However, most of the existing heating systems cannot live up to this standard. More advanced means is needed to effectively enhance the heating efficiency of heating systems [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Research and Evaluation of Energy-Saving Reconstruction of Intelligent Community Heating System Based on the Internet of Things

Sun¹,

Chen²,

Pan³

et al. 2021

IJHT

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“…An example in the objective was to identify geometries that provide acceptable performance over a desired operational period considering fouling in heat exchangers used in crude oil preheating trains [12]. In Trafczynski et al [13], the objective was to increase the system's energy efficiency and minimize greenhouse gas emissions through a linear control system of the parallel flows of a heat exchanger network. Arsenyeva et al [14] presented the developments in the design theory of PHEs, aiming to improve heat recovery and energy use efficiency.…”

Section: Introductionmentioning

confidence: 99%

Active Control System to Prevent Malfunctioning Caused by the Pressure Difference in Gasket Plate Heat Exchangers Applied in the Oil and Gas Industry

Martins

Spengler

Oliveira

et al. 2022

Sensors

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In the oil and gas industry, heat exchangers are subject to loads that cause malfunctioning. These loads are divided into thermal and mechanical stresses; however, most efforts are focused on studying thermal stresses. The present work reduces mechanical stresses by mitigating pressure events in a gasket plate heat exchanger (GPHE). GPHE requires that the hot and cold stream branches have approximately the same pressure. Thus, the work focuses on controlling the pressure difference between the branches. A test bench was used to emulate, on a small scale, the typical pressure events of an oil production plant. A control valve was used in different positions to evaluate the controller. In the experiments, it was observed that the best option to control the pressure difference is to use a hydraulic pump and control valve in the flow of the controlled thermal fluid branch. The reduction in pressure events was approximately 50%. Actuator efforts are also reduced in this configuration.

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“…It has become one of the fastest growing industries in the world, and in recent years it has absolute advantages in the global market share (van der Werff et al, 2019). Developing high-efficiency energy-saving industries is a strategic choice to achieve green and low-carbon development and promote the construction of ecological civilization (Trafczynski et al, 2019). It is also an important way to promote supply-side structural reforms (Yao et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Collaboration network, technology network and technological development: a patent analysis in the Chinese green technological field of energy saving

Cao

Xing

Sun

2020

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Purpose This paper aims to forecast the future development of UIC technology according to the changes of IPC in different time periods. The findings also provide a theoretical basis for the UIC policymakers of energy-saving environmental protection industry. Design/methodology/approach The present study will take energy-saving technology as an example, through using a two-mode network analysis method to build the four-stage IPC code UIC innovation-technology network, researching UIC innovation network applicant heterogeneity, UIC technology network and technology relevance. Findings Through the establishment of UIC innovation-technology two-mode network, namely, applicant node CN and IPC node TN, this paper analyzes the important applicants, focal technologies, correlation of focal technologies and the development trends of energy saving technology in the future by using the related theories and methods of two-mode network. Originality/value At present, only about 11% of energy-saving enterprises in China have R&D activities. The government needs to implement top-level design, improve industrial policies, strengthen investment in technology R&D and build a platform for technological innovation in energy-saving industries to support the R&D of common and key technologies in energy-saving industries.

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Energy saving potential of a simple control strategy for heat exchanger network operation under fouling conditions

Cited by 21 publications

References 30 publications

Research and Evaluation of Energy-Saving Reconstruction of Intelligent Community Heating System Based on the Internet of Things

Research and Evaluation of Energy-Saving Reconstruction of Intelligent Community Heating System Based on the Internet of Things

Active Control System to Prevent Malfunctioning Caused by the Pressure Difference in Gasket Plate Heat Exchangers Applied in the Oil and Gas Industry

Collaboration network, technology network and technological development: a patent analysis in the Chinese green technological field of energy saving

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