Volume measurement system of large vertical energy storage tank based on optoelectronic measurement technology

2020 ◽  
Author(s):  
Huadong Hao ◽  
Cunjun Li ◽  
Xianlei Chen ◽  
Haolei Shi ◽  
Ze’nan Wu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Measurement System ◽  
Storage Tank ◽  
Volume Measurement ◽  
Measurement Technology ◽  
Optoelectronic Measurement

Leg Volume Measurements with a Modified Optoelectronic Measurement System

1995 ◽  
Vol 10 (2) ◽  
pp. 62-64 ◽  
Author(s):  
J. C. J. M. Veraart ◽  
H. A. M. Neumann
Keyword(s):  
Healthy Volunteer ◽  
The Netherlands ◽  
Healthy Volunteers ◽  
Outcome Measures ◽  
Measurement System ◽  
Volume Measurement ◽  
Laser Pointer ◽  
Interobserver Reproducibility ◽  
Volume Measurements ◽  
Optoelectronic Measurement

Objective: To evaluate the reproducibility of a modified optoelectronic volume measurement system (the volometer). Design: In the first part of the study healthy volunteers and one investigator were used to evaluate the intraobserver reproducibility; in the second part one healthy volunteer and different investigators were used to evaluate the interobserver reproducibility. Setting: Department of Dermatology, Academisch Ziekenhuis Maastrict, The Netherlands. Patients: Twenty healthy volunteers for the first part of the study; eight doctors and one healthy volunteer for the second part. Main outcome measures: Optoelectronic volume measurements on one leg over a standard distance of 40 cm and over 20 cm with the use of a laser pointer as calibration. A total of eight measurements were performed on each volunteer. The same procedure was performed by different investigators on one volunteer. Results: The modified optoelectronic measurement system with laser pointer calibration showed an improvement of the reproducibility of 27% in the intraobserver study. An improvement of 11% was found in the interobserver study. Conclusions: The modified optoelectronic volume measurement system (the volometer) provides a better reproducibility than the standard system. The instrument can be used for easy and rapid volume measurements in phlebological practice.

scholarly journals Thermochemical energy storage – from fundamental research to TRL IV

2019 ◽  
Vol 108 ◽  
pp. 02013
Author(s):  
Piotr Babiński ◽  
Michalina Kotyczka – Morańska ◽  
Jarosław Zuwała
Keyword(s):  
Energy Storage ◽  
Heat Carrier ◽  
Storage Tank ◽  
Storage Capacity ◽  
Heat Storage ◽  
Solid Medium ◽  
Storage System ◽  
Reversible Reactions ◽  
Thermochemical Heat Storage ◽  
Fundamental Research

The paper presents the results of the fundamental research devoted to the application of MgSO4 as a heat carrier for thermochemical seasonal storage system devoted for household application followed by the results of 35kWh storage tank (TRL IV) charging and discharging tests. Seasonal thermochemical heat storage, based on the reversible reactions of hydratation and dehydratation of a solid medium gives an opportunity to accumulate the energy with a storage capacity exceeding 300-400 kWh/m3.

scholarly journals Development and experimental testing of a compact thermal energy storage tank using paraffin targeting domestic hot water production needs

2020 ◽  
Vol 19 ◽  
pp. 100573 ◽  
Author(s):  
George Dogkas ◽  
John Konstantaras ◽  
Maria K. Koukou ◽  
Michail Gr. Vrachopoulos ◽  
Christos Pagkalos ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Storage Tank ◽  
Experimental Testing ◽  
Hot Water ◽  
Water Production ◽  
Domestic Hot Water

Study on Liquid Volume Measurement Based on Wireless Transmission and Hydraulic Sensors

2012 ◽  
Vol 263-266 ◽  
pp. 392-397
Author(s):  
Jie Luo ◽  
Yun Hui Wang ◽  
Qian Wen Zhao ◽  
Hui Guo ◽  
Fei She
Keyword(s):  
Measurement System ◽  
Measurement Method ◽  
Pressure Sensors ◽  
Volume Measurement ◽  
Wireless Transmission ◽  
Liquid Volume ◽  
Hydraulic Pressure ◽  
General Packet Radio Service ◽  
Service Module ◽  
Wireless Measurement

Based on hydraulic sensors and wireless transmission, a new wireless measurement method of liquid volume in a tank is introduced. This measurement system includes hydraulic pressure sensors, A/D converter, GPRS (General Packet Radio Service) module and upper monitor in a computer, from which the users can get aware of the liquid volume in a tank at any time. The measurement system has been built，calibrated and tested. The experimental results show that this measurement system works well and the measurement error is less than 1%.

Energy Storage Start-up Strategies for Concentrated Solar Power Plants With a Dual-Media Thermal Storage System

2015 ◽  
Vol 137 (5) ◽  
Author(s):  
Ben Xu ◽  
Peiwen Li ◽  
Cho Lik Chan
Keyword(s):  
Energy Storage ◽  
Storage Tank ◽  
Heat Storage ◽  
Storage System ◽  
Electrical Energy ◽  
Thermal Storage ◽  
Energy Output ◽  
Concentrated Solar Power ◽  
Start Up ◽  
Hot Start

A concentrated solar power (CSP) plant typically has thermal energy storage (TES), which offers advantages of extended operation and power dispatch. Using dual-media, TES can be cost-effective because of the reduced use of heat transfer fluid (HTF), usually an expensive material. The focus of this paper is on the effect of a start-up period thermal storage strategy to the cumulative electrical energy output of a CSP plant. Two strategies—starting with a cold storage tank (referred to as “cold start”) and starting with a fully charged storage tank (referred to as “hot start”)—were investigated with regards to their effects on electrical energy production in the same period of operation. An enthalpy-based 1D transient model for energy storage and temperature variation in solid filler material and HTF was applied for both the sensible heat storage system (SHSS) and the latent heat storage system (LHSS). The analysis was conducted for a CSP plant with an electrical power output of 60 MWe. It was found that the cold start is beneficial for both the SHSS and LHSS systems due to the overall larger electrical energy output over the same number of days compared to that of the hot start. The results are expected to be helpful for planning the start-up operation of a CSP plant with a dual-media thermal storage system.

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