Methods of determining individual heat energy consumption using an intelligent system for monitoring power supplies

Shtern, Yu. I.; Kozhevnikov, Ya. S.; Медведев, В. А.; Mironov, R. E.; Karavaev, I. S.

doi:10.1007/s11018-013-0177-2

Cited by 8 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In case of the normal distribution with the coverage factor k(p) = 1.65 and the level of confidence of p = 0.95, the relative standard uncertainty of measurement of the individual heat consumption for an apartment over the heating season was estimated as no more than 6.5% [2], which is rather acceptable. It should be noted that this error is lower than that of the technique of individual heat consumption measurement based on heat cost allocators.…”

Section: The Technique Of the Individual Heat Consumption Meteringmentioning

confidence: 96%

See 1 more Smart Citation

Intellectual System for Controlling the Individual Heat Consumption

et al. 2016

View full text Add to dashboard Cite

A new concept for determining the individual heat consumption in the heating systems of the apartment houses, which was realized in the intellectual system, developed by authors, for controlling the individual heat consumption, is proposed. Concept is based on the use of virtual measuring channels, determined by the technology of intellectual precise temperature sensors and flow meters for heat carrier in heating systems. Configuration of measuring channels is determined by software means, and can be operatively changed during exploitation. Methods and mathematical models for the calculation of individual heat consumption were determined, including calculation and distribution of total house heat consumption. Design principle of intellectual system for controlling the individual heat consumption was determined. Original design solutions, and hardware and software means for electronic components were developed. System carries out direct measurements of heat consumption, and performs data reception and transmission from electronic measuring and controlling components using radio channel at frequencies of 434 or 868 MHz, then it is performing calculations and displaying results. Results of calculations in real measuring units are displayed on the local retranslator and apartment monitor. Exclusive feature of this concept is associated with the possibility of measuring of total house heat consumption. Estimation of confidence limits of systematic measurement error of the individual heat consumption was carried out. It was shown that average weighted error for determination of heat consumption by one apartment during the heating season does not exceed 6.5%.

show abstract

Section: The Technique Of the Individual Heat Consumption Meteringmentioning

confidence: 96%

“…The System is based on a new patented [2] conception for the individual heat consumption metering in the multi-unit apartment buildings' heating systems.…”

Section: Introductionmentioning

confidence: 99%

Intellectual System for Controlling the Individual Heat Consumption

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The accuracy of heat consumption metering is mainly determined by the accuracy of temperature measurement. Therefore, nowadays, it is necessary to develop new techniques and instruments for accurate temperature measurements in individual heat consumption metering systems [1].…”

Section: Introductionmentioning

confidence: 99%

Intellectual Precise Temperature Sensor with Wireless Interface

et al. 2016

View full text Add to dashboard Cite

Intellectual precise temperature sensor with wireless interface (ITWS) for contact measurements with absolute error of ±0.05• C in the temperature range from 5 to 95• C was developed. Platinum thin film resistance thermometer was used as the sensitive unit. High accuracy of measurements is supported by following. Investigations and modeling of temperature dependence of resistivity for sensitive unit allowed to develop mathematical model ensuring calculation of temperature with the error not exceeding 5 × 10 −3 • C. Original patented design, and hardware and software solutions for ITWS were developed. Method and mathematical models for thermocompensation of electronic components of ITWS were elaborated, which allowed sufficient decrease of measurement error during measurements and exploitation. Methodology, and hardware and software measuring system for individual ITWS calibration in automatic regime were developed, which include correction of mathematical model for the calculation of temperature for each sensor. ITWS has several design and technological solutions, and is developed for the temperature measurements of heat transfer agent in the pipelines of heating and hot water supply systems, independently of pipeline diameter. Measured data are transferred by radio channel to the recording and display devices. ITWS are used in automated systems for energy carrier controlling and determination of individual heat consumption. ITWS consists of following modules: sensitive unit, analog-to-digital converter, microcontroller, radio transceiver (carrier frequency is 434 or 868 MHz, output power of transmitter is not more than 10 mW), antenna and power supply (3.6 V).

show abstract