H-Tec DEMO House Operating Instructions Manual

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Operating Instructions

D111

DEMO House

Table of Contents

Summary of Contents for H-Tec DEMO House

Page 1 Operating Instructions D111 DEMO House...
Page 2: Table Of Contents
Table of contents Introduction About these instructions Safety instructions Product contents Overview Starting up Operation Technical data Troubleshooting Shutting down Maintenance Transport and storage Disposal www.myhtec.com...
Page 3: Introduction
Introduction The realistic model of a residential building “DEMO House” shows the domestic energy supply of the future. It contains a 5-cell PEM fuel cell stack combined with a PEM electrolyzer and an implied hydrogen storage tank. The electrolyzer produces hydrogen which is supplied to the fuel cell.
Page 4: Safety Instructions
Safety instructions Read and observe the general safety instructions included separately with this product and keep them in a safe place together with the operating instructions! Product-specific safety instructions The product may only be used: According to its intended use In compliance with all safety instructions In perfect working order The components of this product feature freely accessible, live electric contact surfaces.
Page 5: Product Contents
Product contents Demonstration model "DEMO House" Graphic, front side (pre-installed) Graphic, rear side (pre-installed) Electrolyzer with water reservoirs, mounted on base plate www.myhtec.com...
Page 6 Overflow (pre-installed) Fuel cell stack, mounted on base plate Solar module Implied solar module www.myhtec.com...
Page 7 Supporting feet (possibly pre-installed) Allen key 2.0 mm Set of cables consisting of: Connecting cable, 2 mm, length 50 cm, red Connecting cable, 2 mm, length 50 cm, black Adapter, 4 mm multilam plug to 2 mm female connector, red Adapter, 4 mm multilam plug to 2 mm female connector, black Water bottle...
Page 8 Case with insert (optional) Companion book Operating instructions General safety instructions www.myhtec.com...
Page 9: Overview
Overview The "DEMO House" demonstration model at a glance The “DEMO House” demonstration model consists of an electrolyzer, two water reservoirs, a 5-cell fuel cell stack and an illuminated graphic. When the electrolyzer is supplied with electrical energy, it produces hydrogen and oxygen from distilled water. The hydrogen, combined with the atmospheric oxygen, is converted into electrical energy in the fuel cell stack, creating water and heat.
Page 10: Starting Up
Starting up WARNING Magnets may affect the function of cardiac pacemakers and defibrillators A cardiac pacemaker may be switched into test mode and may cause uneasiness. A defibrillator may stop working. Bearers or users of such devices must maintain a minimum distance of 10 cm to magnets.
Page 11 Installation of supporting feet The following process steps are not required for demonstration models with the aluminium case with insert. In this case, the supporting feet are already pre-installed. Fig. 2: Installation 1 1. Place the demonstration model on a firm and clean base. Bring the supporting feet in position. The supporting feet must be centred in the recesses of the demonstration model.
Page 12 Filling Dist. H σ < 2 μS/cm Fig. 3: Filling 1 Fill both water reservoirs with distilled water (σ < 2 µS/cm) up to the lower mark. Fig. 4: Filling 2 Attach the overflow to the hydrogen storage tank using a clockwise motion. www.myhtec.com...
Page 13 Assembly Fig. 5: Installation 2 1. Put on the implied solar module. It is fixed by magnets. 2. Attach the lower connecting tube of the implied gas storage tank on the connecting pipe of the electrolyzer. Ensure that the connecting tube is not kinked. 3.
Page 14 Fig. 6: Installation 3 5. Put the fuel cell stack into the demonstration model. It is fixed by magnets. The connection jacks must be located in the front (see fig. 6). Ensure that the connecting tube is not kinked. 6. Connect the cables of the graphic to the respective connections of the fuel cell stack. While ensuring correct polarity (red = “+”, black = “-”).
Page 15 Replacing the graphics The graphics of the demonstration model “DEMO House” are available in different language versions and can also be designed individually. This is why they are replaceable. The graphics are replaced as follows. Fig. 7: Replacing the graphics 1.
Page 16: Operation
Operation CAUTION Risk of injury from hydrogen ignition During operation, small amounts of hydrogen are continuously released into the atmosphere. Escaping hydrogen may ignite when in proximity to an ignition source. Keep product away from ignition sources. Ensure ventilation in accordance with the general safety instructions.
Page 17 CAUTION Risk of fire due to electrical overload Any operation beyond the electrical specifications will lead to excessive overheating of the electrolyzer. This may cause a fire. Never operate the electrolyzer beyond the electrical specifications stated in the technical data. CAUTION Risk of damage due to electrical overload Any operation beyond the electrical specifications will lead to...
Page 18 In such cases, the output of the fuel cell will be inadequate. Fig. 8: Operation „DEMO House“ Read and observe the general safety instructions. Connect the connections of the solar module (I.) to the connections of the electrolyzer (II.) (see fig.
Page 19 Gas production can be recognized by gas bubbles rising inside the water reservoirs. The “DEMO House” is now in operation. The graphic lights up as soon as the hydrogen reaches the fuel cell stack. Warm-up takes approximately 5 to 10 minutes. If the model is operated by solar module, and if lighting conditions are extremely poor, warm-up may take longer.
Page 20: Technical Data
Technical data Gas storage tank and water reserve: Item name: ..........DEMO House Item no: ........... D111 Fill volume H O, H -side: ......approx. 60 ml Fill volume H O, O -side: ......approx. 110 ml Solar module: Gas storage volume H : ......
Page 21: Troubleshooting
Troubleshooting Despite hydrogen production, the load (illuminated graphic) connected to the fuel cell is not working. Possible cause 1: The overflow is not secured firmly in place. Solution: Secure the overflow firmly in place. Possible cause 2: The connecting cables of the illuminated graphic are not properly connected. Solution: Check the connecting cables and the power source.
Page 22 Operate the solar module using either adequate direct sunlight or concentrated light from a powerful electrical light source. Energy-saving light bulbs, fluorescent tubes etc. are unsuitable for the operation of solar modules. If the above-mentioned solutions do not eliminate the cause of the error, please contact H-TEC EDUCATION. www.myhtec.com...
Page 23: Shutting Down
Shutting down After disconnecting the power source from the electrolyzer, continue operating the fuel cell stack until the connected lighting turns off. This procedure prevents that hydrogen is released unnecessarily. CAUTION Risk of injury from hydrogen ignition Escaping hydrogen may ignite when in proximity to an ignition source.
Page 24 Drain both water reservoirs, as shown in fig. 9. The water must be disposed of correctly (e.g. drain). Disconnect the cables of the graphic from the connections of the fuel cell stack. Disconnect the upper connecting tube of the implied gas storage tank from the connecting pipe of the fuel cell stack (see chapter “Starting up”, fig.
Page 25: Maintenance
Maintenance The components of this product do not require maintenance. The following points should be observed, however: Use fresh, distilled water (σ < 2 µS/cm) for each new start-up. After operation, remove the water from the water reservoirs. Transport and storage With regard to transport and storage of the product, the following points should be observed to ensure a long service life.
Page 26 Notes: www.myhtec.com...
Page 27 Notes: www.myhtec.com...
Page 28 © H-Tec Education, 2019. No part of this guide may be reproduced in whole or in part in any manner without the express written permission of H-Tec Education. Subject to technical changes. H-TEC EDUCATION 1902 Pinon Dr. Unit B College Station, TX 77845...

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