Each year there are many death reports caused by respiratory and lung disease which are estimated that their main reason is previous lung exposures at works. knowing that their lungs are at risk in worksites, some workers and staff don’t pay enough attention to protections. the main reason why workers are sometimes indifferent to the health of their lungs in the workplace is that the hazard of respiratory disease is not often visible to see and consequences may not be apparent immediately. Sometimes symptoms take years to be revealed. There are a couple of things that employers can do to protect their workers’ lungs against airborne particles produced in the work environment. These particles can seriously affect workers’ health. One of the most easy-to-do solutions to protect workers’ lungs from exposure to harmful dust and fumes in the workplace is wearing disposable respirators or disposable masks.
Disposable Masks
One of the most frequent usages of disposable masks is in industries and different workplaces. Disposable respirators are masks mostly designed cup-shaped to be worn over nose and mouth. These masks are held on the face by straps running behind the head. Wearing disposable masks can prevent harmful substances produced from any working activity, from entering the lungs. By wearing these masks, workers, and staff greatly protect their lungs from possible damages. Good to know that most of these masks will only provide a certain level of protection, and protect against only some potential respiratory dangers. There are many different types of industrial masks and the most considerable thing one should think of is the protection level of the mask.
During the COVID-19 pandemic, face masks have been employed as a public and personal health control measure against the spread of SARS-CoV-2. Their use is intended as personal protection to prevent infection and as source control to limit transmission of the virus in a community or healthcare setting. The use of masks has received varying recommendations from different public health agencies and governments. The World Health Organization and other public health organisations agree that masks can limit the spread of respiratory viral diseases such as COVID-19. However, the topic has been a subject of debate, with some public health agencies and governments initially disagreeing on a protocol for wearing face masks.
Choosing an industrial mask mostly depends on the element and substances may be present in the air of the working environment. Some provide a limited level of protection while others may protect lungs from most of the threatening hazards. Now that we have to live in a world infected with the Coronavirus COVID-19, wearing masks can be like achieving two aims with one action which covers a recommendation and a world obligation.
Click here for more information about Disposable Respirator.You can also visit the Wikipedia website.
Energy efficiency can be improved even more in central heating systems by introducing zoned heating. This allows a more granular application of heat, similar to non-central heating systems. Zones are controlled by multiple thermostats. In water heating systems the thermostats control zone valves, and in forced air systems they control zone dampers inside the vents which selectively block the flow of air. In this case, the control system is very critical to maintaining a proper temperature.
HVAC maintenance is an indispensable part of owning an HVAC system. Well, these systems are composed of multiple mechanical and electrical components as well as the means to connect these components to each other in order to create the system, and therefore, it is clear that maintenance would be crucial for them to keep their performance at desired levels, as well as lowering heating and cooling repair or retrofit costs.
All modern air conditioning systems, even small window package units, are equipped with internal air filters. These are generally of a lightweight gauze-like material, and must be replaced or washed as conditions warrant. For example, a building in a high dust environment, or a home with furry pets, will need to have the filters changed more often than buildings without these dirt loads. Failure to replace these filters as needed will contribute to a lower heat exchange rate, resulting in wasted energy, shortened equipment life, and higher energy bills; low air flow can result in iced-over evaporator coils, which can completely stop air flow. Additionally, very dirty or plugged filters can cause overheating during a heating cycle, and can result in damage to the system or even fire.
Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics and heat transfer.
In the past, water heating was more efficient for heating buildings and was the standard in the United States. Today, forced air systems can double for air conditioning and are more popular.
Some benefits of forced air systems, which are now widely used in churches, schools and high-end residences, are
In general, heating and cooling repair costs range between $150 to $450 on average. The heating and cooling repair cost is mostly on the AC service and then on the furnace service. Diagnostic tests could cost about $80 to $100. The average cost for AC service is about $320, and $270 for furnace services. Should your system require any tune-ups, they could cost between $80 to $120.
In order to avoid replacement and heating and cooling repair costs for the components of the HVAC system, some preventive precautions could be taken. This would help save money for the users of the HVAC system, keep the system’s reliability at desired levels, and also provide high quality air and comfort for the system users consistently.
You can click here for more information.
References:
https://www.linquip.com/blog/hvac-maintenance-hvac-service-checklist/
This item is among the best solar batteries available. Lithium Solar Batteries are a great option with a really low maintenance need and they can cycle almost all of their rated capacity. That’s why they’re great intermittent and full-time use in demanding solar storage applications.
Storage for the home
One of the Bosch products to be seen at the worlds leading exhibition for the solar industry and its partners is Bosch Power Tecs BPT-S 5 Hybrid. The size of a refrigerator, this electricity storage system is suited to home use, storing the electricity a photovoltaic system generates during the day so that a family can draw it down when the sun is not shining any longer. The BPT-S 5 Hybrid is available with a basic storage capacity of 4.4 kWh, which can be expanded as required in modular steps of 2.2 kWh up to a maximum of 13.2 kWh. The BPT-S 5 Hybrid is the worlds only PV storage system to have received security certification for all components of the system from an independent institute. This satisfies the highest international safety standards. Bosch Power Tec has already amassed 200,000 hours of experience with its electricity storage systems.
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electical building blocks of photovoltaic modules, known colloquially as solar panels. The common single junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts.
The second item is the Solar Power Battery Bank. It is cost-effective and can withstand low temperatures. Just like Lithium Solar Batteries, this type also has very low maintenance needs. But keep in mind that they are not suitable for applications that require frequent cycling since they store less energy. Don’t forget that they should be stores in a ventilated and dry place and away from any heat sources.
You can refer to this link to get more information about solar batteries suitable for residential and office buildings.
References:
https://www.linquip.com/blog/best-solar-batteries/
https://en.wikipedia.org/wiki/Solar_cell
https://www.bosch-presse.de/pressportal/de/en/bosch-batteries-store-wind-and-solar-power-42225.html
A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level.
The final goal of different control valve types
The final control element or the control valve can convert the control signal of the controller with the help of a pneumatic device and regulate the fluid flow in the system. They can be used for different liquids, gasses, steam, air, etc.
benefits of Pressure independent control valves:
What are Control Valves?
Control Valves have been designed to control and regulate pressure and flow rate. They can automatically do the job and eliminate the need for you to constantly keep an eye on the system. You can choose the correct control valve for the specific desired pressure. It’s interesting to know that Control Valves are also known as the final control element in automatic control terminology which is due to the process control valves operate within their system.
The opening or closing of automatic control valves is usually done by electrical, hydraulic or pneumatic actuators. Normally with a modulating valve, which can be set to any position between fully open and fully closed, valve positioners are used to ensure the valve attains the desired degree of opening. see more
The main goals of different control valve parts:
Pressure independent control valves (PICVs) improve system performance and optimize delta-T resulting in less pumping energy and contributing to more efficient loading of boilers and chillers. Siemens pressure independent control valves integrate three functions into a single device: control valve, adjustable flow limiter, and automatic pressure regulator. The automatic pressure regulator dynamically balances the circuit by maintaining a consistent flow through the valve when differential pressure changes. Siemens pressure independent control valves have the unique advantage of always maintaining their full stroke, regardless of the maximum adjustable flow setting, to provide better control. This significantly reduces or eliminates hunting for the right actuator setting, resulting in better control and increased comfort. Siemens PICVs help prolong maintenance and preserve the life of HVAC equipment, enhance room comfort, and optimize energy efficiency.
Refrences:
https://www.linquip.com/blog/control-valves-101-guide-to-understand/
A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or, in the case of closed circuit dry cooling towers, rely solely on air to cool the working fluid to near the dry-bulb air temperature.
The crossflow cooling tower belongs to the family of mechanical drift cooling towers in which the upward flow of the air cools down the hot water raining down from the hot water basin at the top onto the cold water water basin at the bottom. see more
The counterflow cooling tower is a type of cooling tower designs that offers the maximum thermal performance for its area of occupation. The fill media is horizontally installed beneath the hot water distribution basin, and the cooling process is carried out as the air passes through the fill absorbing the heat from the water flowing down the fill.
In a counterflow design, the air flow is directly opposite to the water flow. Air flow first enters an open area beneath the fill media, and is then drawn up vertically. The water is sprayed through pressurized nozzles near the top of the tower, and then flows downward through the fill, opposite to the air flow. see more
Data center thermal optimization is a comprehensive package of facility improvement measures—from the cooling tower to the rack—which optimizes primary/secondary cooling cycles and white space. It applies intelligence about the density of IT workloads to regulate the cooling within a data center.
Comparing crossflow vs counterflow cooling towers is a common thing to do when choosing between cooling towers for a specific application. The most apparent distinction between crossflow towers and counterflow towers is that the airflow is perpendicularly contacted with the process water in the fill in the former while it comes into contact with the process water stream in the opposite direction for the latter. Click to read more
Refrences:
https://www.linquip.com/blog/counterflow-cooling-tower/
درباره این سایت