Nicolae Badea The solution of the access in real time by the use of the web in order to process data allows the mCCHP installation to be monitored, unifying in this way the functionality of the remote control with the applicability of the WEB system. The developed application is easy to be configured and easily […]
Category: Functional Design of the mCCHP-RES System
System Interface
Nicolae Badea The experimental data processing and interpretation is possible with SCADA interface. We have 148 variables monitored for experimental data processing and interpretation. The monitoring, control, and protection system through a WEB terminal with real time access from the residential building, equipped with a mCCHP system, is divided in two categories: a. The monitoring […]
Design of the Control Subsystem
Nicolae Badea and Marian Barbu One of the basic functions of the automation and control system of the building is a timely control of the procedures and processes that provide an efficient energy operation. The control programs make sure that the lighting and heating are not automatically shut down at the end of the day, […]
System Dynamics Analysis in Summer Regime
For simulating the whole system, the scheme presented in Fig. 53 in Chap. “Functional Design of the mCCHP-RES System” was modified considering the equipment characteristics. In this case, the time horizon for the system simulation was 3 days. The sources which discharge in the electric subsystem are the following: Stirling engine, driven by the voltage […]
System Dynamics Analysis
Marian Barbu 5.2System, Dynamics Analysis in Winter Regime For simulation of the whole system, the scheme presented in Fig. 41 in Chap. “Functional Design of the mCCHP-RES System” was modified by taking into account the equipment characteristics mentioned above. The system simulation was done over a 3-days interval. The operating conditions are given by the […]
System Operating and Control
Nicolae Badea System operating for mCCHP system is off-grid type. In this case the Stirling engine is in electricity-driven operating mode. The principle applied in the control strategy consists in using the voltage of the electrical energy accumulator and the temperature of the heat accumulation tank, as values sensitive to the misbalance between the produced […]
Circuit of DHW (CH10)
The DHW circuit is fuelled with energy from the DHW tank. The amount of water is sufficient for the daily consumption of the residence. This water is heated through conduction from the water of the hot water tank. The continuous refreshing of the water in the DHW tank presupposes resolving the Fig. 23 Solar thermal […]
Circuits of the cogeneration unit devoted for heat recuperation and protection (CH7 and CH8)
The Stirling engine as cogeneration unit is capable of supplying part of the heat with the hydraulic circuit CH7. The heat transfer from the Stirling engine is achieved through the recirculation of the thermal agent with a recirculation pump located inside the Stirling engine. When selecting care should be taken from the outset to ensure […]