Didactic Solar Water Heater

Individual solar hot water production using pressurised technology. Study of a full-scale solar system for individual domestic hot water production, built from commonly used industrial components. Learning Objectives: Identify the constituent elements of the system and analyse the relevance of technological choices made. Learn about Digital Didactic Solar Water Heater for optimal educational outcomes.. Maintenance and system control, and implementation of necessary corrective actions: pressure level, antifreeze protection, primary circuit flow rate. Perform the overall heat balance and analyse instantaneous and cumulative thermal efficiencies of different sub-assemblies. Learn about Didactic Solar Water Heater specifications for optimal educational outcomes.. Analyse the influence of collector inclination and orientation. Study the technical and economic value of this hot water production method and its environmental impact; calculate the carbon balance of the installation compared with a conventional electric water heater. Learn about Didactic Solar Water Heater price for optimal educational outcomes..

The bench comprises: one flat-plate solar panel with variable inclination (total area 1. 79 m²) connected via double self-sealing quick-connect fittings; one storage and distribution module with a 100-litre single-exchanger storage tank, 1.

One flat-plate solar panel with variable inclination, total area 1.79 m². Connections via double self-sealing quick-connect fittings. One storage and distribution module comprising: a 100-litre storage tank with a heat exchanger; a 1.4 kW electric heating element; an electronic differential controller with LCD display and two temperature probes (one at the panel inlet, one at the solar heat exchanger in the tank); a hydraulic transfer module with flow, pressure, and temperature measurement, flow control and bleed valves, isolation valves, quick-connect fittings for panel connections, insulated stainless steel primary pipework; a cold water flow meter; an antifreeze injection pump; a primary circuit under 3.5 bar pressure with antifreeze fluid. A thermostatic mixer valve on the hot water produced with temperature measurement before distribution (to control scalding risk). A sink unit with tap, pressure-limiting valve, water meter, and cold water supply filter. Programmable differential controller. One solar meter with: numerical display; irradiance measurement in W/m² or BTU/h/ft²; 2-channel temperature sensor for module and ambient temperature; digital compass for direction determination; inclinometer for roof/module inclination; data logger for 5000 readings; real-time clock with time-stamping; USB interface with download software; irradiance measurement range 100–1250 W/m²; temperature range (module/environment) −30°C to +125°C; compass range 0–360°; inclinometer range 0–90°. Thermal energy counter (calories) on primary circuit connected to controller. Electrical energy counter on backup heating element. VBus interface. Data logger with RJ45 PC connection. Electrical control and power cabinet with all required components for safety and operation. Electrical energy meter on backup heating element. Flat-plate solar panel with variable inclination: absorber area 2.2 m²; aperture area 2.3 m²; total area 2.57 m².