Chamber Leakage Test
Room Tightness Test is a professional study performed with special equipment and software. The general purpose of the room tightness tests, which should be carried out by experienced and trained people who are experts in their fields, is to provide the most effective protection of the environment from possible fires. The amount of oxygen in the environment is the most important part of the test process. In this process, the correct determination of the amount of oxygen and accordingly reaching the appropriate oxygen level of the working area constitute the main objective of the test. The room tightness test is the most effective method today against possible fires. Especially in environments where the risk of fire is high, the room tightness test is of vital importance. As it is known, oxygen is a gas that has a burning quality. Therefore, the presence of more oxygen or other flammable gases than normal in the environment increases the possibility of fire. How long the air in the room or area is in circulation forms the basis of the room tightness test. The purpose of these tests is to determine at what rate the air is circulated and how long the residence time is. All these factors also provide very important information to check whether the fire suppression systems are working properly.
Chamber leakage test are pressure tests performed using special equipment, software, computers and tools. The purpose of the chamber tightness test is to ensure that the gas concentration in the chamber is provided in the most accurate way. Studies conducted today have shown that many areas that are thought to be very safe are not that safe due to the gases contained in them. Chamber leakage tests basically have two functions. The first of these functions is the determination of the gas density in the environment. Another function of the room leakage test is to check whether the fire extinguishing systems are working properly for their intended use. In the event of a possible fire, important data is obtained about how these systems will be effective. In addition, chamber leakage tests can be performed to determine the extent of the natural airflow of the environment. As a result of these tests, it can be determined how much the air in the environment needs to be cleaned. At the same time, the performance of the air devices in the environment and the size and quality of the devices to be used can also be determined with the data obtained as a result of the room tightness tests.
Chamber Leakage Test Stages
The construction stages involve an extremely complex process. Expert and experienced teams in the field should accompany the test process in which the latest technological equipment is used. In order to manage the process in the most accurate way and to get the most effective and accurate results, special software that evaluates the results of the test should be used. The ultimate goal in room tightness tests is to determine how long the gas concentration in the air takes place in the environment. Therefore, specially developed devices called manometers are used at the beginning of the test process. With these devices, the gas concentration in the air is determined in terms of area and m2. In the first stage of the test, air is collected with the help of fans. Then, the air is expelled by applying pressure. The outward air is measured with manometer devices. The data obtained by the manometer devices are transferred to the computers using a special software. These software reports in detail what is needed in the environment and what precautions should be taken.
First of all, the doors and windows in the room are closed. Electronic items are turned OFF. A specially calibrated fan is temporarily mounted on the door with the door panel. The fan pressurizes the chamber to measure the air tightness. It is applied as positive and negative (vacuum) pressure. The gauge calculates flow and equivalent leak area with calibrated fan pressure. The amount of air leakage is measured by creating a pressure difference between the inside and outside of the room. The obtained values are entered into the computer program with up-to-date software and it is decided whether the room is sealed or not. If it has sufficient concentration and 10 minutes of residence time, this indicates that the design has passed the test. This means; The sealing of the volume to which gaseous extinguishing is applied must be such as to provide the minimum required concentration. If the chamber does not pass the test, the leak must be found and sealed. In order for gas extinguishing systems to work efficiently, the test must be repeated. Conditions that cause pressure changes in leakage areas directly affect the amount of gas leaking out. The acceptable concentration value and how long the room will be protected (keeping the gas in the room) are determined from the EN 15004, ISO 14520 and NFPA 2001 standards. The minimum residence time for clean gases, determined by NFPA 2001 and ISO 14520, is 10 minutes after the gas is discharged to the environment. The chamber tightness test is a test that requires extreme precision. The fact that the test is of vital importance and requires a high level of precision requires it to be performed by experienced teams. You can get detailed information by contacting Novatest, which provides room tightness tests with its experienced team of experts and state-of-the-art devices.
Novatest
Our company was established in 2014. It has set out especially not to compromise on QUALITY and TRUST. Moreover, its own YOUNG, its team YOUNG, its equipment YOUNG, but it has set out with academic career people who have a say in the sector. It also proceeds with the motto of continuous innovation. As can be understood from the meaning of its name, our company has set out to become a ‘shining star’ in the sector. In addition, NOVATEST provides HVAC Validation tests, Duct Leak Tests, Biosafety Cabinets Performance Tests and Air Flow Measurement (Air Balance) services. In principle, we are in control of what we do. We work very meticulously. We also provide high quality services for our customers in all industries. However, NOVATEST undertakes to fulfill all the requirements of its quality policy.
The best way to present the measurement results of temperature and humidity values is to prepare a report rich with visual content. For this reason, in temperature mapping, not only the temperature graph but also the temperature isotherm map of the warehouse is presented to our customers. In this way, reporting is possible for all kinds of variables (As a result of combining the sketch of the warehouse and the device layout with the thermal image, it is easier to determine which location is the coldest and which location is the hottest in the warehouse).
Most air-conditioned areas are monitored with one or at most several temperature-humidity sensors and it is seen that compliance with the allowable limits is mostly achieved. However, the real situation is often different. In a large area within the volume that should be under control, no measurement is actually performed. At the same time, many movements are constantly taking place in the environment, personnel traffic, movements of forklifts and similar vehicles, opening and closing of doors and windows, if any, also affect the environment. At the same time, the doors of the air-conditioned zone and some wall sections are adjacent to regions with different temperature-humidity conditions.
Moreover, it often causes the formation of conditions that will lead to undesirable heat transfer. Under all these conditions, how do you ensure that the temperature and humidity are evenly distributed throughout the volume and that the products are kept in the same conditions at every point in the environment? Are the sensors you place in the environment actually located at the most critical points? In the process of answering these and similar questions, we, as NOVATEST, are at your service with Humidity Mapping data and Humidity Mapping study that we will periodically obtain from many points to be determined in your climatized region for a period of about a week, in real environmental conditions.